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Hallucination

Index Hallucination

A hallucination is a perception in the absence of an external stimulus that has the compelling sense of reality. [1]

Table of Contents

  1. 178 relations: Abscess, Alcoholism, Alzheimer's disease, Amygdala, Anomalous experiences, Anticholinergic, Antipsychotic, Apparitional experience, Atypical antipsychotic, Auditory hallucination, August Natterer, Autoscopy, Bicameral mentality, Bipolar disorder, Body image disturbance, Brainstem, Broca's area, Caffeine, Cenesthopathy, Cerebral peduncle, Cholinergic, Closed-eye hallucination, Cocaine, Codeine, Cognitive behavioral therapy, Comorbidity, Consciousness, Cyclazocine, Cyclorphan, Deliriant, Delirium tremens, Delusion, Dementia with Lewy bodies, Dextromethorphan, Dissociative, Dissociative disorders, Dolly zoom, Dopamine, Drug withdrawal, Endocrine disease, Ephedrine, Epilepsy, Erogenous zone, Fatigue, Fentanyl, Focal seizure, Folie à deux, Formication, Frontal lobe, Gamma wave, ... Expand index (128 more) »

  2. Nonexistent things

Abscess

An abscess is a collection of pus that has built up within the tissue of the body.

See Hallucination and Abscess

Alcoholism

Alcoholism is the continued drinking of alcohol despite it causing problems.

See Hallucination and Alcoholism

Alzheimer's disease

Alzheimer's disease (AD) is a neurodegenerative disease that usually starts slowly and progressively worsens, and is the cause of 60–70% of cases of dementia.

See Hallucination and Alzheimer's disease

Amygdala

The amygdala (amygdalae or amygdalas; also corpus amygdaloideum; Latin from Greek, ἀμυγδαλή, amygdalē, 'almond', 'tonsil') is a paired nuclear complex present in the cerebral hemispheres of vertebrates.

See Hallucination and Amygdala

Anomalous experiences

Anomalous experiences, such as so-called benign hallucinations, may occur in a person in a state of good mental and physical health, even in the apparent absence of a transient trigger factor such as fatigue, intoxication or sensory deprivation. Hallucination and Anomalous experiences are hallucinations.

See Hallucination and Anomalous experiences

Anticholinergic

Anticholinergics (anticholinergic agents) are substances that block the action of the acetylcholine (ACh) neurotransmitter at synapses in the central and peripheral nervous system.

See Hallucination and Anticholinergic

Antipsychotic

Antipsychotics, previously known as neuroleptics and major tranquilizers, are a class of psychotropic medication primarily used to manage psychosis (including delusions, hallucinations, paranoia or disordered thought), principally in schizophrenia but also in a range of other psychotic disorders.

See Hallucination and Antipsychotic

Apparitional experience

In parapsychology, an apparitional experience is an anomalous experience characterized by the apparent perception of either a living being or an inanimate object without there being any material stimulus for such a perception. Hallucination and apparitional experience are hallucinations.

See Hallucination and Apparitional experience

Atypical antipsychotic

The atypical antipsychotics (AAP), also known as second generation antipsychotics (SGAs) and serotonin–dopamine antagonists (SDAs), are a group of antipsychotic drugs (antipsychotic drugs in general are also known as tranquilizers and neuroleptics, although the latter is usually reserved for the typical antipsychotics) largely introduced after the 1970s and used to treat psychiatric conditions.

See Hallucination and Atypical antipsychotic

Auditory hallucination

An auditory hallucination, or paracusia, is a form of hallucination that involves perceiving sounds without auditory stimulus. Hallucination and auditory hallucination are hallucinations, medical signs and symptoms and signs of mental disorders.

See Hallucination and Auditory hallucination

August Natterer

August Natterer (3 August 1868 – 7 October 1933), also known as Neter, was a German outsider artist with schizophrenia.

See Hallucination and August Natterer

Autoscopy

Autoscopy is the experience in which an individual perceives the surrounding environment from a different perspective, from a position outside of their own body. Hallucination and Autoscopy are symptoms and signs of mental disorders.

See Hallucination and Autoscopy

Bicameral mentality

Bicameral mentality is a hypothesis introduced by Julian Jaynes who argued human ancestors as late as the ancient Greeks did not consider emotions and desires as stemming from their own minds but as the consequences of actions of gods external to themselves.

See Hallucination and Bicameral mentality

Bipolar disorder

Bipolar disorder, previously known as manic depression, is a mental disorder characterized by periods of depression and periods of abnormally elevated mood that each last from days to weeks.

See Hallucination and Bipolar disorder

Body image disturbance

Body image disturbance (BID) is a common symptom in patients with eating disorders and is characterized by an altered perception of one's own body.

See Hallucination and Body image disturbance

Brainstem

The brainstem (or brain stem) is the stalk-like part of the brain that connects the forebrain (the cerebrum and diencephalon) with the spinal cord.

See Hallucination and Brainstem

Broca's area

Broca's area, or the Broca area (also), is a region in the frontal lobe of the dominant hemisphere, usually the left, of the brain with functions linked to speech production.

See Hallucination and Broca's area

Caffeine

Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class.

See Hallucination and Caffeine

Cenesthopathy

Cenesthopathy (from cénestopathie, formed from the Ancient Greek κοινός "common", αἴσθησῐς "feeling", "perception" + πᾰ́θος "feeling, suffering, condition"), also known as coenesthesiopathy, is a rare psychiatric term used to refer to the feeling of being ill and this feeling is not localized to one region of the body. Hallucination and Cenesthopathy are symptoms and signs of mental disorders.

See Hallucination and Cenesthopathy

Cerebral peduncle

The cerebral peduncles (In Latin, ped- means 'foot'.) are the two stalks that attach the cerebrum to the brainstem.

See Hallucination and Cerebral peduncle

Cholinergic

Cholinergic agents are compounds which mimic the action of acetylcholine and/or butyrylcholine.

See Hallucination and Cholinergic

Closed-eye hallucination

Closed-eye hallucinations and closed-eye visualizations (CEV) are hallucinations that occur when one's eyes are closed or when one is in a darkened room. Hallucination and closed-eye hallucination are hallucinations and symptoms and signs of mental disorders.

See Hallucination and Closed-eye hallucination

Cocaine

Cocaine (from, from, ultimately from Quechua: kúka) is a tropane alkaloid that acts as a central nervous system (CNS) stimulant.

See Hallucination and Cocaine

Codeine

Codeine is an opiate and prodrug of morphine mainly used to treat pain, coughing, and diarrhea.

See Hallucination and Codeine

Cognitive behavioral therapy

Cognitive behavioral therapy (CBT) is a form of psychotherapy that aims to reduce symptoms of various mental health conditions, primarily depression and anxiety disorders.

See Hallucination and Cognitive behavioral therapy

Comorbidity

In medicine, comorbidity refers to the simultaneous presence of two or more medical conditions in a patient; often co-occurring (that is, concomitant or concurrent) with a primary condition.

See Hallucination and Comorbidity

Consciousness

Consciousness, at its simplest, is awareness of internal and external existence.

See Hallucination and Consciousness

Cyclazocine

Cyclazocine is a mixed opioid agonist/antagonist related to dezocine, pentazocine and phenazocine.

See Hallucination and Cyclazocine

Cyclorphan

Cyclorphan is an opioid analgesic of the morphinan family that was never marketed.

See Hallucination and Cyclorphan

Deliriant

Deliriants are a subclass of hallucinogen.

See Hallucination and Deliriant

Delirium tremens

Delirium tremens (DTs) is a rapid onset of confusion usually caused by withdrawal from alcohol.

See Hallucination and Delirium tremens

Delusion

A delusion is a false fixed belief that is not amenable to change in light of conflicting evidence.

See Hallucination and Delusion

Dementia with Lewy bodies

Dementia with Lewy bodies (DLB) is a type of dementia characterized by changes in sleep, behavior, cognition, movement, and regulation of automatic bodily functions.

See Hallucination and Dementia with Lewy bodies

Dextromethorphan

Dextromethorphan (DXM), sold under the trade name Robitussin among others, is a cough suppressant used in many cough and cold medicines.

See Hallucination and Dextromethorphan

Dissociative

Dissociatives, colloquially dissos, are a subclass of hallucinogens that distort perception of sight and sound and produce feelings of detachment – dissociation – from the environment and/or self.

See Hallucination and Dissociative

Dissociative disorders

Dissociative disorders (DDs) are a range of conditions characterized by significant disruptions or fragmentation "in the normal integration of consciousness, memory, identity, emotion, perception, body representation, motor control, and behavior." Dissociative disorders involve involuntary dissociation as an unconscious defense mechanism, wherein the individual with a dissociative disorder experiences separation in these areas as a means to protect against traumatic stress.

See Hallucination and Dissociative disorders

Dolly zoom

A dolly zoom (also known as a Hitchcock shot, Vertigo shot, Jaws effect, or Zolly shot) is an in-camera effect that appears to undermine normal visual perception.

See Hallucination and Dolly zoom

Dopamine

Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is a neuromodulatory molecule that plays several important roles in cells.

See Hallucination and Dopamine

Drug withdrawal

Drug withdrawal, drug withdrawal syndrome, or substance withdrawal syndrome, is the group of symptoms that occur upon the abrupt discontinuation or decrease in the intake of pharmaceutical or recreational drugs.

See Hallucination and Drug withdrawal

Endocrine disease

Endocrine diseases are disorders of the endocrine system.

See Hallucination and Endocrine disease

Ephedrine

Ephedrine is a central nervous system (CNS) stimulant that is often used to prevent low blood pressure during anesthesia.

See Hallucination and Ephedrine

Epilepsy

Epilepsy is a group of non-communicable neurological disorders characterized by recurrent epileptic seizures.

See Hallucination and Epilepsy

Erogenous zone

An erogenous zone (from Greek ἔρως, érōs "love"; and English -genous "producing", from Greek -γενής, -genḗs "born") is an area of the human body that has heightened sensitivity, the stimulation of which may generate a sexual response such as relaxation, sexual fantasies, sexual arousal, and orgasm.

See Hallucination and Erogenous zone

Fatigue

Fatigue describes a state of tiredness (which is not sleepiness), exhaustion or loss of energy.

See Hallucination and Fatigue

Fentanyl

Fentanyl is a highly potent synthetic piperidine opioid primarily used as an analgesic. It is 20 to 40 times more potent than heroin and 100 times more potent than morphine; its primary clinical utility is in pain management for cancer patients and those recovering from painful surgeries. Fentanyl is also used as a sedative.

See Hallucination and Fentanyl

Focal seizure

Focal seizures (also called partial seizures and localized seizures) are seizures that affect initially only one hemisphere of the brain.

See Hallucination and Focal seizure

Folie à deux

Folie à deux (French for 'madness of two'), also known as shared psychosis or shared delusional disorder (SDD), is a psychiatric syndrome in which symptoms of a delusional belief are "transmitted" from one individual to another. Hallucination and Folie à deux are hallucinations.

See Hallucination and Folie à deux

Formication

Formication is the sensation resembling that of small insects crawling on (or under) the skin, in the absence of actual insects. Hallucination and Formication are hallucinations and symptoms and signs of mental disorders.

See Hallucination and Formication

Frontal lobe

The frontal lobe is the largest of the four major lobes of the brain in mammals, and is located at the front of each cerebral hemisphere (in front of the parietal lobe and the temporal lobe).

See Hallucination and Frontal lobe

Gamma wave

A gamma wave or gamma rhythm is a pattern of neural oscillation in humans with a frequency between 25 and 140 Hz, the 40 Hz point being of particular interest.

See Hallucination and Gamma wave

Ganzfeld effect

The Ganzfeld effect (from German for "complete field"), or perceptual deprivation, is a phenomenon of perception caused by exposure to an unstructured, uniform stimulation field. Hallucination and Ganzfeld effect are hallucinations.

See Hallucination and Ganzfeld effect

Hallucination (artificial intelligence)

In the field of artificial intelligence (AI), a hallucination or artificial hallucination (also called bullshitting, confabulation or delusion) is a response generated by AI which contains false or misleading information presented as fact.

See Hallucination and Hallucination (artificial intelligence)

Hallucinogen

Hallucinogens are a large and diverse class of psychoactive drugs that can produce altered states of consciousness characterized by major alterations in thought, mood, and perception as well as other changes. Hallucination and Hallucinogen are hallucinations.

See Hallucination and Hallucinogen

Hallucinogen persisting perception disorder

Hallucinogen persisting perception disorder (HPPD) is a non-psychotic disorder in which a person experiences apparent lasting or persistent visual hallucinations or perceptual distortions after using drugs, including but not limited to psychedelics, dissociatives, entactogens, tetrahydrocannabinol (THC), and SSRIs.

See Hallucination and Hallucinogen persisting perception disorder

Hallucinogenic fish

Several species of fish are claimed to produce hallucinogenic effects when consumed, a condition known as ichthyoallyeinotoxism. Hallucination and hallucinogenic fish are hallucinations.

See Hallucination and Hallucinogenic fish

Hearing loss

Hearing loss is a partial or total inability to hear.

See Hallucination and Hearing loss

Hearing Voices Movement

The Hearing Voices Movement (HVM) is the name used by organizations and individuals advocating the "hearing voices approach", an alternative way of understanding the experience of those people who "hear voices".

See Hallucination and Hearing Voices Movement

Hippocampus

The hippocampus (hippocampi; via Latin from Greek ἱππόκαμπος, 'seahorse') is a major component of the brain of humans and other vertebrates.

See Hallucination and Hippocampus

Hydromorphone

Hydromorphone, also known as dihydromorphinone, and sold under the brand name Dilaudid among others, is a morphinan opioid used to treat moderate to severe pain.

See Hallucination and Hydromorphone

Hypnagogia

Hypnagogia is the transitional state from wakefulness to sleep, also defined as the waning state of consciousness during the onset of sleep. Hallucination and Hypnagogia are hallucinations.

See Hallucination and Hypnagogia

Hypnopompia

Hypnopompia (also known as hypnopompic state) is the state of consciousness leading out of sleep, a term coined by the psychical researcher Frederic Myers.

See Hallucination and Hypnopompia

Illusion

An illusion is a distortion of the senses, which can reveal how the mind normally organizes and interprets sensory stimulation.

See Hallucination and Illusion

Insecticide

Insecticides are pesticides used to kill insects.

See Hallucination and Insecticide

Insular cortex

The insular cortex (also insula and insular lobe) is a portion of the cerebral cortex folded deep within the lateral sulcus (the fissure separating the temporal lobe from the parietal and frontal lobes) within each hemisphere of the mammalian brain.

See Hallucination and Insular cortex

International Classification of Diseases

The International Classification of Diseases (ICD) is a globally used medical classification used in epidemiology, health management and for clinical purposes.

See Hallucination and International Classification of Diseases

Δ-opioid receptor

The δ-opioid receptor, also known as delta opioid receptor or simply delta receptor, abbreviated DOR or DOP, is an inhibitory 7-transmembrane G-protein coupled receptor coupled to the G protein Gi/G0 and has enkephalins as its endogenous ligands.

See Hallucination and Δ-opioid receptor

Κ-opioid receptor

The κ-opioid receptor or kappa opioid receptor, abbreviated KOR or KOP for its ligand ketazocine, is a G protein-coupled receptor that in humans is encoded by the OPRK1 gene.

See Hallucination and Κ-opioid receptor

Kurt Schneider

Kurt Schneider (7 January 1887 – 27 October 1967) was a German psychiatrist known largely for his writing on the diagnosis and understanding of schizophrenia, as well as personality disorders then known as psychopathic personalities.

See Hallucination and Kurt Schneider

La Trobe University

La Trobe University is a public research university based in Melbourne, Victoria, Australia.

See Hallucination and La Trobe University

Lateral sulcus

In neuroanatomy, the lateral sulcus (also called Sylvian fissure, after Franciscus Sylvius, or lateral fissure) is one of the most prominent features of the human brain.

See Hallucination and Lateral sulcus

Lesion

A lesion is any damage or abnormal change in the tissue of an organism, usually caused by injury or diseases. Hallucination and lesion are medical signs.

See Hallucination and Lesion

Levorphanol

Levorphanol (brand name Levo-Dromoran) is an opioid medication used to treat moderate to severe pain.

See Hallucination and Levorphanol

Locus coeruleus

The locus coeruleus (LC), also spelled locus caeruleus or locus ceruleus, is a nucleus in the pons of the brainstem involved with physiological responses to stress and panic.

See Hallucination and Locus coeruleus

LSD

Lysergic acid diethylamide, commonly known as LSD (from German Lysergsäure-diethylamid), and known colloquially as acid or lucy, is a potent psychedelic drug.

See Hallucination and LSD

Lupus

Lupus, technically known as systemic lupus erythematosus (SLE), is an autoimmune disease in which the body's immune system mistakenly attacks healthy tissue in many parts of the body.

See Hallucination and Lupus

Lyme disease

Lyme disease, also known as Lyme borreliosis, is a tick-borne disease caused by species of Borrelia bacteria, transmitted by blood-feeding ticks in the genus Ixodes.

See Hallucination and Lyme disease

Macropsia

Macropsia is a neurological condition affecting human visual perception, in which objects within an affected section of the visual field appear larger than normal, causing the person to feel smaller than they actually are.

See Hallucination and Macropsia

Major depressive disorder

Major depressive disorder (MDD), also known as clinical depression, is a mental disorder characterized by at least two weeks of pervasive low mood, low self-esteem, and loss of interest or pleasure in normally enjoyable activities.

See Hallucination and Major depressive disorder

Mayo Clinic

Mayo Clinic is a nonprofit American academic medical center focused on integrated health care, education, and research.

See Hallucination and Mayo Clinic

Menopause

Menopause, also known as the climacteric, is the time when menstrual periods permanently stop, marking the end of reproduction.

See Hallucination and Menopause

Mental disorder

A mental disorder, also referred to as a mental illness, a mental health condition, or a psychiatric disability, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning.

See Hallucination and Mental disorder

Mental image

In the philosophy of mind, neuroscience, and cognitive science, a mental image is an experience that, on most occasions, significantly resembles the experience of "perceiving" some object, event, or scene but occurs when the relevant object, event, or scene is not actually present to the senses.

See Hallucination and Mental image

Meta-analysis

Meta-analysis is the statistical combination of the results of multiple studies addressing a similar research question.

See Hallucination and Meta-analysis

Metabolic disorder

A metabolic disorder is a disorder that negatively alters the body's processing and distribution of macronutrients, such as proteins, fats, and carbohydrates.

See Hallucination and Metabolic disorder

Metacognitive training

Metacognitive training (MCT) is an approach for treating the symptoms of psychosis in schizophrenia, especially delusions, which has been adapted for other disorders such as depression, obsessive–compulsive disorder and borderline over the years (see below).

See Hallucination and Metacognitive training

Methadone

Methadone, sold under the brand names Dolophine and Methadose among others, is a synthetic opioid agonist used for chronic pain and also for opioid use disorder.

See Hallucination and Methadone

Micropsia

Micropsia is a condition affecting human visual perception in which objects are perceived to be smaller than they actually are.

See Hallucination and Micropsia

Microwave auditory effect

The microwave auditory effect, also known as the microwave hearing effect or the Frey effect, consists of the human perception of sounds induced by pulsed or modulated radio frequencies. Hallucination and microwave auditory effect are hallucinations.

See Hallucination and Microwave auditory effect

Middle temporal gyrus

Middle temporal gyrus is a gyrus in the brain on the temporal lobe.

See Hallucination and Middle temporal gyrus

Morphinan

Morphinan is the prototype chemical structure of a large chemical class of psychoactive drugs, consisting of opiate analgesics, cough suppressants, and dissociative hallucinogens, among others.

See Hallucination and Morphinan

Morphine

Morphine, formerly also called morphia, is an opiate that is found naturally in opium, a dark brown resin produced by drying the latex of opium poppies (Papaver somniferum).

See Hallucination and Morphine

Multiple sclerosis

Multiple sclerosis (MS) is an autoimmune disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged.

See Hallucination and Multiple sclerosis

Musical ear syndrome

Musical ear syndrome (MES) describes a condition seen in people who have hearing loss and subsequently develop auditory hallucinations. Hallucination and Musical ear syndrome are hallucinations.

See Hallucination and Musical ear syndrome

Narcolepsy

Narcolepsy is a chronic neurological disorder that impairs the ability to regulate sleep–wake cycles, and specifically impacts REM (rapid eye movement) sleep.

See Hallucination and Narcolepsy

Nasal polyp

Nasal polyps (NP) are noncancerous growths within the nose or sinuses.

See Hallucination and Nasal polyp

Neurological disorder

A neurological disorder is any disorder of the nervous system.

See Hallucination and Neurological disorder

NMDA receptor

The N-methyl-D-aspartate receptor (also known as the NMDA receptor or NMDAR), is a glutamate receptor and predominantly Ca2+ ion channel found in neurons.

See Hallucination and NMDA receptor

Nociception

In physiology, nociception (/ˌnəʊsɪˈsɛpʃ(ə)n/), also nocioception) is the sensory nervous system's process of encoding noxious stimuli. It deals with a series of events and processes required for an organism to receive a painful stimulus, convert it to a molecular signal, and recognize and characterize the signal to trigger an appropriate defensive response.

See Hallucination and Nociception

Non-celiac gluten sensitivity

Non-celiac gluten sensitivity (NCGS) or gluten sensitivity is a controversial disorder which can cause both gastrointestinal and other problems.

See Hallucination and Non-celiac gluten sensitivity

Norepinephrine

Norepinephrine (NE), also called noradrenaline (NA) or noradrenalin, is an organic chemical in the catecholamine family that functions in the brain and body as a hormone, neurotransmitter and neuromodulator.

See Hallucination and Norepinephrine

Occipital lobe

The occipital lobe is one of the four major lobes of the cerebral cortex in the brain of mammals.

See Hallucination and Occipital lobe

Olfactory system

The olfactory system or sense of smell is the sensory system used for smelling (olfaction).

See Hallucination and Olfactory system

Opioid

Opioids are a class of drugs that derive from, or mimic, natural substances found in the opium poppy plant.

See Hallucination and Opioid

Oxycodone

Oxycodone, sold under various brand names such as Roxicodone and OxyContin (which is the extended release form), is a semi-synthetic opioid used medically for treatment of moderate to severe pain.

See Hallucination and Oxycodone

Pain

Pain is a distressing feeling often caused by intense or damaging stimuli.

See Hallucination and Pain

Parabrachial nuclei

The parabrachial nuclei, also known as the parabrachial complex, are a group of nuclei in the dorsolateral pons that surrounds the superior cerebellar peduncle as it enters the brainstem from the cerebellum.

See Hallucination and Parabrachial nuclei

Parahippocampal gyrus

The parahippocampal gyrus (or hippocampal gyrus) is a grey matter cortical region of the brain that surrounds the hippocampus and is part of the limbic system.

See Hallucination and Parahippocampal gyrus

Pareidolia

Pareidolia is the tendency for perception to impose a meaningful interpretation on a nebulous stimulus, usually visual, so that one detects an object, pattern, or meaning where there is none.

See Hallucination and Pareidolia

Parietal lobe

The parietal lobe is one of the four major lobes of the cerebral cortex in the brain of mammals.

See Hallucination and Parietal lobe

Parkinson's disease

Parkinson's disease (PD), or simply Parkinson's, is a long-term neurodegenerative disease of mainly the central nervous system that affects both the motor and non-motor systems of the body.

See Hallucination and Parkinson's disease

Peduncular hallucinosis

Peduncular hallucinosis (PH) is a rare neurological phenomenon that causes vivid visual hallucinations that typically occur in dark environments and last for several minutes.

See Hallucination and Peduncular hallucinosis

Pedunculopontine nucleus

The pedunculopontine nucleus (PPN) or pedunculopontine tegmental nucleus (PPT or PPTg) is a collection of neurons located in the upper pons in the brainstem.

See Hallucination and Pedunculopontine nucleus

Pentazocine

Pentazocine, sold under the brand name Talwin among others, is a painkiller used to treat moderate to severe pain.

See Hallucination and Pentazocine

Perception

Perception is the organization, identification, and interpretation of sensory information in order to represent and understand the presented information or environment.

See Hallucination and Perception

Peripheral neuropathy

Peripheral neuropathy, often shortened to neuropathy, refers to damage or disease affecting the nerves.

See Hallucination and Peripheral neuropathy

Peripheral vision

Peripheral vision, or indirect vision, is vision as it occurs outside the point of fixation, i.e. away from the center of gaze or, when viewed at large angles, in (or out of) the "corner of one's eye".

See Hallucination and Peripheral vision

Pethidine

Pethidine, also known as meperidine and sold under the brand name Demerol among others, is a fully synthetic opioid pain medication of the phenylpiperidine class.

See Hallucination and Pethidine

Phantom eye syndrome

Phantom eye syndrome (PES) is a phantom pain in the eye and visual hallucinations after the removal of an eye (enucleation, evisceration). Hallucination and phantom eye syndrome are hallucinations.

See Hallucination and Phantom eye syndrome

Phantom limb

A phantom limb is the sensation that an amputated or missing limb is still attached. Hallucination and phantom limb are hallucinations.

See Hallucination and Phantom limb

Phantosmia

Phantosmia (phantom smell) -->, also called an olfactory hallucination or a phantom odor, is smelling an odor that is not actually there. Hallucination and Phantosmia are hallucinations.

See Hallucination and Phantosmia

Phenomenon

A phenomenon (phenomena), sometimes spelled phaenomenon, is an observable event.

See Hallucination and Phenomenon

Phosphene

A phosphene is the phenomenon of seeing light without light entering the eye. Hallucination and phosphene are hallucinations.

See Hallucination and Phosphene

Photopsia

Photopsia is the presence of perceived flashes of light in the field of vision. Hallucination and Photopsia are hallucinations and medical signs.

See Hallucination and Photopsia

Pons

The pons (pontes; from Latin pons, "bridge", from Proto-Indo-European *pónteh₁s, “path, road”, from *pent-, “path”. Cognate with Sanskrit पन्था, pánthā-) is part of the brainstem that in humans and other mammals, lies inferior to the midbrain, superior to the medulla oblongata and anterior to the cerebellum.

See Hallucination and Pons

Porphyria

Porphyria is a group of disorders in which substances called porphyrins build up in the body, adversely affecting the skin or nervous system.

See Hallucination and Porphyria

Post-traumatic stress disorder

Post-traumatic stress disorder (PTSD) is a mental and behavioral disorder that develops from experiencing a traumatic event, such as sexual assault, warfare, traffic collisions, child abuse, domestic violence, or other threats on a person's life or well-being.

See Hallucination and Post-traumatic stress disorder

Postcentral gyrus

In neuroanatomy, the postcentral gyrus is a prominent gyrus in the lateral parietal lobe of the human brain.

See Hallucination and Postcentral gyrus

Prisoner's cinema

Prisoner's cinema is the phenomenon of a "light show" of various colors that appear out of the darkness. Hallucination and Prisoner's cinema are hallucinations.

See Hallucination and Prisoner's cinema

Proprioception

Proprioception is the sense of self-movement, force, and body position.

See Hallucination and Proprioception

Pseudohallucination

A pseudohallucination (from ψευδής (pseudḗs) "false, lying" + "hallucination") is an involuntary sensory experience vivid enough to be regarded as a hallucination, but which is recognised by the person experiencing it as being subjective and unreal. Hallucination and pseudohallucination are hallucinations.

See Hallucination and Pseudohallucination

Psilocybin

Psilocybin is a naturally occurring psychedelic prodrug compound produced by more than 200 species of fungi.

See Hallucination and Psilocybin

Psychedelic experience

A psychedelic experience (known colloquially as a trip) is a temporary altered state of consciousness induced by the consumption of a psychedelic substance (most commonly LSD, mescaline, psilocybin mushrooms, or DMT). Hallucination and psychedelic experience are hallucinations.

See Hallucination and Psychedelic experience

Psychoactive drug

A psychoactive drug, mind-altering drug, or consciousness-altering drug is a chemical substance that changes brain function and results in alterations in perception, mood, consciousness, cognition, or behavior.

See Hallucination and Psychoactive drug

Psychosis

Psychosis is a condition of the mind or psyche that results in difficulties determining what is real and what is not real. Hallucination and Psychosis are symptoms and signs of mental disorders.

See Hallucination and Psychosis

Psychotic depression

Psychotic depression, also known as depressive psychosis, is a major depressive episode that is accompanied by psychotic symptoms. Hallucination and psychotic depression are hallucinations.

See Hallucination and Psychotic depression

Raphe nuclei

The raphe nuclei (ῥαφή, "seam") are a moderate-size cluster of nuclei found in the brain stem.

See Hallucination and Raphe nuclei

Rapid eye movement sleep

Rapid eye movement sleep (REM sleep or REMS) is a unique phase of sleep in mammals (including humans) and birds, characterized by random rapid movement of the eyes, accompanied by low muscle tone throughout the body, and the propensity of the sleeper to dream vividly.

See Hallucination and Rapid eye movement sleep

Rectum

The rectum (rectums or recta) is the final straight portion of the large intestine in humans and some other mammals, and the gut in others.

See Hallucination and Rectum

Religious delusion

A religious delusion is defined as a delusion, or fixed belief not amenable to change in light of conflicting evidence, involving religious themes or subject matter.

See Hallucination and Religious delusion

Sarcoidosis

Sarcoidosis (also known as Besnier–Boeck–Schaumann disease) is a disease involving abnormal collections of inflammatory cells that form lumps known as granulomata.

See Hallucination and Sarcoidosis

Schizophrenia

Schizophrenia is a mental disorder characterized by reoccurring episodes of psychosis that are correlated with a general misperception of reality.

See Hallucination and Schizophrenia

Scopolamine

Scopolamine, also known as hyoscine, or Devil's Breath, is a natural or synthetically produced tropane alkaloid and anticholinergic drug that is used as a medication to treat motion sickness and postoperative nausea and vomiting.

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Seizure

A seizure is a period of symptoms due to abnormally excessive or synchronous neuronal activity in the brain.

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Sense of balance

The sense of balance or equilibrioception is the perception of balance and spatial orientation.

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Sense of smell

The sense of smell, or olfaction, is the special sense through which smells (or odors) are perceived.

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Sensory deprivation

Sensory deprivation or perceptual isolation is the deliberate reduction or removal of stimuli from one or more of the senses. Hallucination and Sensory deprivation are hallucinations.

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Sigma receptor

Sigma receptors (σ-receptors) are protein receptors that bind ligands such as 4-PPBP (4-phenyl-1-(4-phenylbutyl) piperidine), SA 4503 (cutamesine), ditolylguanidine, dimethyltryptamine, and siramesine.

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Simulated reality

A simulated reality is an approximation of reality created in a simulation, usually in a set of circumstances in which something is engineered to appear real when it is not.

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Skin cancer

Skin cancers are cancers that arise from the skin.

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Sleep deprivation

Sleep deprivation, also known as sleep insufficiency or sleeplessness, is the condition of not having adequate duration and/or quality of sleep to support decent alertness, performance, and health.

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Sleep paralysis

Sleep paralysis is a state, during waking up or falling asleep, in which a person is conscious but in a complete state of full-body paralysis.

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Society for Psychical Research

The Society for Psychical Research (SPR) is a nonprofit organisation in the United Kingdom.

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Solvent

A solvent (from the Latin solvō, "loosen, untie, solve") is a substance that dissolves a solute, resulting in a solution.

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Somatics

Somatics is a field within bodywork and movement studies which emphasizes internal physical perception and experience.

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Somatosensory system

The somatosensory system is a subset of the sensory nervous system responsible for the perception of touch.

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Sound

In physics, sound is a vibration that propagates as an acoustic wave through a transmission medium such as a gas, liquid or solid.

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Stimulus (physiology)

In physiology, a stimulus is a detectable change in the physical or chemical structure of an organism's internal or external environment.

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Stimulus modality

Stimulus modality, also called sensory modality, is one aspect of a stimulus or what is perceived after a stimulus.

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Substance abuse

Substance abuse, also known as drug abuse, is the use of a drug in amounts or by methods that are harmful to the individual or others.

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Substance intoxication

Substance intoxication is a transient condition of altered consciousness and behavior associated with recent use of a substance.

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Substantia nigra

The substantia nigra (SN) is a basal ganglia structure located in the midbrain that plays an important role in reward and movement.

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Superior temporal gyrus

The superior temporal gyrus (STG) is one of three (sometimes two) gyri in the temporal lobe of the human brain, which is located laterally to the head, situated somewhat above the external ear.

See Hallucination and Superior temporal gyrus

Taste

The gustatory system or sense of taste is the sensory system that is partially responsible for the perception of taste (flavor).

See Hallucination and Taste

Tegmentum

The tegmentum (from Latin for "covering") is a general area within the brainstem.

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Temporal lobe

The temporal lobe is one of the four major lobes of the cerebral cortex in the brain of mammals.

See Hallucination and Temporal lobe

Temporal lobe epilepsy

In the field of neurology, temporal lobe epilepsy is an enduring brain disorder that causes unprovoked seizures from the temporal lobe.

See Hallucination and Temporal lobe epilepsy

Thermoception

In physiology, thermoception or thermoreception is the sensation and perception of temperature, or more accurately, temperature differences inferred from heat flux.

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Thomas Browne

Sir Thomas Browne (19 October 160519 October 1682) was an English polymath and author of varied works which reveal his wide learning in diverse fields including science and medicine, religion and the esoteric.

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Time perception

The study of time perception or chronoception is a field within psychology, cognitive linguistics and neuroscience that refers to the subjective experience, or sense, of time, which is measured by someone's own perception of the duration of the indefinite and unfolding of events.

See Hallucination and Time perception

Tinnitus

Tinnitus is a variety of sound that is heard when no corresponding external sound is present.

See Hallucination and Tinnitus

Vision (spirituality)

A vision is something seen in a dream, trance, or religious ecstasy, especially a supernatural appearance that usually conveys a revelation. Hallucination and vision (spirituality) are hallucinations.

See Hallucination and Vision (spirituality)

Visual field

The visual field is "that portion of space in which objects are visible at the same moment during steady fixation of the gaze in one direction"; in ophthalmology and neurology the emphasis is mostly on the structure inside the visual field and it is then considered “the field of functional capacity obtained and recorded by means of perimetry”.

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Visual impairment

Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.

See Hallucination and Visual impairment

Visual perception

Visual perception is the ability to interpret the surrounding environment through photopic vision (daytime vision), color vision, scotopic vision (night vision), and mesopic vision (twilight vision), using light in the visible spectrum reflected by objects in the environment.

See Hallucination and Visual perception

Visual release hallucinations

Visual release hallucinations, also known as Charles Bonnet syndrome or CBS, are a type of psychophysical visual disturbance in which a person with partial or severe blindness experiences visual hallucinations. Hallucination and visual release hallucinations are hallucinations and symptoms and signs of mental disorders.

See Hallucination and Visual release hallucinations

Visual system

The visual system is the physiological basis of visual perception (the ability to detect and process light).

See Hallucination and Visual system

Wakefulness

Wakefulness is a daily recurring brain state and state of consciousness in which an individual is conscious and engages in coherent cognitive and behavioral responses to the external world.

See Hallucination and Wakefulness

Wilson's disease

Wilson's disease (also called Hepatolenticular degeneration) is a genetic disorder characterized by the excess build-up of copper in the body.

See Hallucination and Wilson's disease

See also

Nonexistent things

References

[1] https://en.wikipedia.org/wiki/Hallucination

Also known as Causes of hallucinations, Causes of visual hallucinations, Command hallucination, Command hallucinations, Experiential hallucination, Experiential hallucinations, Gustatory hallucination, Gustatory hallucinations, Gustatory illusion, Hallucinate, Hallucinated, Hallucinates, Hallucinating, Hallucinations, Hallucinative, Hallucinator, Hallucinators, Hallucinatory, Hallucinatory state, Hallucinoses, Hilusinating, Imperative hallucination, Sensory distortion, Visual distortion, Visual hallucination, Visual hallucinations.

, Ganzfeld effect, Hallucination (artificial intelligence), Hallucinogen, Hallucinogen persisting perception disorder, Hallucinogenic fish, Hearing loss, Hearing Voices Movement, Hippocampus, Hydromorphone, Hypnagogia, Hypnopompia, Illusion, Insecticide, Insular cortex, International Classification of Diseases, Δ-opioid receptor, Κ-opioid receptor, Kurt Schneider, La Trobe University, Lateral sulcus, Lesion, Levorphanol, Locus coeruleus, LSD, Lupus, Lyme disease, Macropsia, Major depressive disorder, Mayo Clinic, Menopause, Mental disorder, Mental image, Meta-analysis, Metabolic disorder, Metacognitive training, Methadone, Micropsia, Microwave auditory effect, Middle temporal gyrus, Morphinan, Morphine, Multiple sclerosis, Musical ear syndrome, Narcolepsy, Nasal polyp, Neurological disorder, NMDA receptor, Nociception, Non-celiac gluten sensitivity, Norepinephrine, Occipital lobe, Olfactory system, Opioid, Oxycodone, Pain, Parabrachial nuclei, Parahippocampal gyrus, Pareidolia, Parietal lobe, Parkinson's disease, Peduncular hallucinosis, Pedunculopontine nucleus, Pentazocine, Perception, Peripheral neuropathy, Peripheral vision, Pethidine, Phantom eye syndrome, Phantom limb, Phantosmia, Phenomenon, Phosphene, Photopsia, Pons, Porphyria, Post-traumatic stress disorder, Postcentral gyrus, Prisoner's cinema, Proprioception, Pseudohallucination, Psilocybin, Psychedelic experience, Psychoactive drug, Psychosis, Psychotic depression, Raphe nuclei, Rapid eye movement sleep, Rectum, Religious delusion, Sarcoidosis, Schizophrenia, Scopolamine, Seizure, Sense of balance, Sense of smell, Sensory deprivation, Sigma receptor, Simulated reality, Skin cancer, Sleep deprivation, Sleep paralysis, Society for Psychical Research, Solvent, Somatics, Somatosensory system, Sound, Stimulus (physiology), Stimulus modality, Substance abuse, Substance intoxication, Substantia nigra, Superior temporal gyrus, Taste, Tegmentum, Temporal lobe, Temporal lobe epilepsy, Thermoception, Thomas Browne, Time perception, Tinnitus, Vision (spirituality), Visual field, Visual impairment, Visual perception, Visual release hallucinations, Visual system, Wakefulness, Wilson's disease.