Hallucinations: Causes & Reasons

Possible Causes for Hallucinations

A 30-year-old patient presented with hallucinations and profound shock. [ncbi.nlm.nih.gov]

In a small room under fluorescent lights the patients discuss their close brushes with death and their hallucinations. [bbc.co.uk]

Classic features of delirium tremens such as sympathetic overdrive and visual hallucinations were not salient features of his presentation. [ncbi.nlm.nih.gov]

Acute Amphetamine Intoxication

When hallucinations occur in the absence of intact reality testing, a diagnosis of Substance-Induced Psychotic Disorder, With Hallucinations, should be considered Associated [courses.lumenlearning.com]

When hallucinations occur in the absence of intact reality testing, a diagnosis of Substance-Induced Psychotic Disorder, With Hallucinations, should be considered. [dsm.wikia.com]

In patient [ 7 ], hallucination was markedly represented, with drowsiness and tachyaponea. [omicsonline.org]

Chronic Alcoholism

Visual hallucinations are the most common type of hallucination experienced during alcohol withdrawal. [emedicinehealth.com]

Abstinence syndrome with chronic alcoholism causes serious mental disorders in the form of hallucinations and fainting. [tadalafilgen.com]

Auditory (hearing) hallucinations can also occur during withdrawal, although less commonly than the other types of hallucinations. [emedicinehealth.com]

Crack Ingestion

There may be hallucinations and confusion. The person may think there are bugs crawling on his skin. They may pick and scratch at their skin. [narconon.org]

Hallucinations Tactile hallucinations (coke bugs) may lead to picking at the skin which can lead to bacterial infections and other bodily damages. [addictions.com]

He may also suffer attacks of paranoia, hallucinations or mood swings while driving. Lack of concentration may result in a loss of control of the vehicle. [narconon.org]

Temporal Lobe Epilepsy

Auditory vocal hallucinations are sometimes observed in temporal-lobe epilepsy, but are a frequent sign of psychosis and may rarely be mistaken for the latter. [ncbi.nlm.nih.gov]

Hallucinations on brain stimulation: Evidence for revision of the Penfield hypothesis. In Keup, W. (Ed.), Origin and mechanisms of hallucinations. [dx.doi.org]

Here we report two patients who suffered from auditory vocal hallucinations, described as unintelligible human voices perceived at their left side during epileptic seizures [ncbi.nlm.nih.gov]

Dementia

Clinical predictors of PDD were visual hallucinations (odds ratio [OR] 21.3; 95% CI: 1.5 to 309.6) and male gender (OR 9.6; 95% CI: 1.3 to 71.4). [ncbi.nlm.nih.gov]

KEYWORDS: Compulsion; Dementia; Disordered gambling; Extracampine hallucination; Humour; Obsession [ncbi.nlm.nih.gov]

[…] restlessness, wandering, culturally inappropriate behaviors, sexual disinhibition, and hoarding, and the psychological symptoms of dementia are anxiety, depressive mood, hallucinations [ncbi.nlm.nih.gov]

Psychosis

The authors present a case history in which they investigate the psychic mechanisms behind the production and function of adolescent hallucinations against the background [ncbi.nlm.nih.gov]

[…] involves hallucinations and/or delusions. " or "psychotic symptoms") in PD can be challenging. [parkinson.org]

The Neuroscience of Visual Hallucinations. p. 193. [doi.org]

Alcohol Abuse

Ministry of Defence doctors record booze-related ailments including liver disease, hallucinations, heart problems and psychotic issues. [thesun.co.uk]

Heavy drinkers may experience tremors, panic attacks, confusion, hallucinations, and seizures. [health.harvard.edu]

In severe cases, you could have a fever, seizures, or hallucinations. If you have any of these symptoms, your drinking may already be a cause for concern. [medlineplus.gov]

Schizophrenia

Persistent auditory verbal hallucination is a clinically significant problem in schizophrenia. [ncbi.nlm.nih.gov]

[…] visual hallucinations. [doi.org]

Perception, mental imagery, and reality discrimination in hallucinating and non-hallucinating schizophrenic patients. [ncbi.nlm.nih.gov]

Plant Poisoning

Clinical symptoms are those seen in atropine poisoning, particularly mydriasis and hallucinations. [ncbi.nlm.nih.gov]

delirium Supportive care Holly berries Gastroenteritis Supportive care Jimsonweed Anticholinergic symptoms, hyperthermia, seizures, hallucinations Supportive care For severe [merckmanuals.com]

II) Neurotoxins contain compounds which cause neurological signs and symptoms, convulsions, hallucinations, excitation, depression, spastic colon. 58. [slideshare.net]

Hyoscyamus Niger Poisoning

Vivid episodes of flying or falling characterized the hallucinations (Mann 2000). [sites.evergreen.edu]

The hallucinations that are caused by the nightshade-alkaloids seem not rarely real to the intoxicated. [psychotropicon.info]

He experienced hallucinations for 17 h. [tandfonline.com]

Cannabis Type Drug Dependence

F12.121 …… delirium F12.122 …… with perceptual disturbance F12.129 …… unspecified F12.15 Cannabis abuse with psychotic disorder F12.150 …… with delusions F12.151 …… with hallucinations [icd10data.com]

Hallucinations – which not everyone enjoys. The munchies. [falsebaytc.co.za]

Cannabis can make you feel relaxed, giggly, and hungry, or hallucinate or have a dry mouth. [drugfoundation.org.nz]

Barbiturate Withdrawal

She was admitted to the hospital because of seizures, hallucinations and delirium not controlled by benzodiazepine and phenothiazine administration. [ncbi.nlm.nih.gov]

Symptoms can be as mild as some irritability and insomnia to as intense as seizures, panic attacks, and hallucinations. [essentialsofcorrectionalnursing.com]

Other clinical features like confusion, delirium, auditory and visual hallucinations, hyperpyrexia, circulatory collapse, and dehydration may occur between 48 to 120 hours [symptoma.com]

Disorganized Schizophrenia

[…] and often hypochondriacal) and hallucinations may be present. [en.wikipedia.org]

Hallucinations and delusions may be present but are not usually prominent. [counsellingresource.com]

Read More In mental disorder: Clinical features Disorganized schizophrenia was characterized by inappropriate emotional responses, delusions or hallucinations, uncontrolled [britannica.com]

Acute Hepatic Porphyria

[…] cases) over one to two weeks, neurological symptoms (muscular weakness, sensory loss or convulsions) and psychological symptoms (irritability, anxiety, auditory or visual hallucinations [orpha.net]

[…] symptoms such as changes in blood pressure or increased heart rate; motor symptoms such as muscle weakness or paralysis; psychiatric symptoms such as anxiety, confusion or hallucinations [nhstayside.scot.nhs.uk]

[…] symptoms: Severe, diffuse abdominal pain, vomiting/nausea, dark/reddish urine, hyponatremia Muscle weakness, numbness, respiratory failure Confusion, anxiety, seizures, hallucinations [alnylam.com]

Organic Brain Syndrome

Hallucinations were common in both delirious and non-delirious patients. [ncbi.nlm.nih.gov]

As delirium improved, various other psychiatric symptoms, including hallucinations, agitation, hypoactivity, affective lability and insomnia, were noted. [ncbi.nlm.nih.gov]

Symptoms of the disorder may induce a disturbance in sleep patterns, hallucinations, anxiety and may have other medical conditions that increase the symptoms. [memory-loss-facts.com]

Bipolar Disorder

Auditory hallucinations Auditory hallucinations consist of hearing things. [blackdoginstitute.org.au]

For example, hearing or smelling things that aren't there (hallucinations). These experiences are related to changed perceptions of normal senses. [hse.ie]

Visual hallucinations Visual hallucinations consist of seeing things that aren’t really there (e.g. seeing people or shadows). [blackdoginstitute.org.au]

Alcohol Withdrawal Delirium

The present association analysis tested the hypothesis that the A10 candidate allele confers vulnerability to alcohol-withdrawal delirium with visual hallucinations. [ncbi.nlm.nih.gov]

These hallucinations can be of three types: auditory, visual, or tactile. Delusions often follow or accompany the hallucinations. [medical-dictionary.thefreedictionary.com]

Visual hallucinations are most common. [alcorehab.org]

Alcohol Hallucinosis

Hallucination Defined A hallucination is the experience of seeing or hearing things that aren’t there while awake and conscious. [alcoholrehab.com]

Auditory hallucinations Also known as paracusia, auditory hallucinations are perceptions of sounds without identifiable external stimuli. [mdedge.com]

It covers: hearing voices drug-induced hallucinations hallucinations and sleep hallucinations in children with a fever Charles Bonnet syndrome hallucinations in older people [nhs.uk]

Organic Hallucination

polysensual hallucination, polysensory hallucination, polysensorial hallucination, intersensorial hallucination, and fantastic hallucination. [hallucinations.enacademic.com]

ORGANIC HALLUCINATIONS: "The cause of mots organic hallucinations can be determined via scans of the brain." [psychologydictionary.org]

The multitude of descriptions of hallucinations gives the reader the idea that hallucinations are not all that rare--and this might be true. [goodreads.com]

Ganser Syndrome

The anomaly is defined as the presence of approximate answers with hallucinations, clouded sensorium, somatic conversion, and amnesia. [ncbi.nlm.nih.gov]

There is also hallucinations, clouded sensorium, somatic conversion, and amnesia. The person is not psychotic. [whonamedit.com]

Hallucinations. Somatic Conversion. Possible Brain Injury. More commen in Men than Women. Major Personal loss experienced. [psychnet-uk.com]

Vitamin B12 Deficiency

Mood was depressive and hallucinations were noted. Laboratory analyses were normal, except for a low vitamin B(12) level (<150 pg mL(-1)). [ncbi.nlm.nih.gov]

The Charles Bonnet syndrome (CBS) is a condition associated with complex visual hallucinations occurring in the elderly in patients with visual impairment and normal mental [ncbi.nlm.nih.gov]

[…] deficiency leads to abnormal myelination or demyelination, resulting in sub-acute combined degeneration, peripheral neuropathy, and psychiatric problems, including delusions, hallucinations [ncbi.nlm.nih.gov]

Wernicke-Korsakoff Syndrome

He showed confusional state, hallucinations, delirium of jealousy and a serious impairment of recent memory. [ncbi.nlm.nih.gov]

The symptoms that are highly suggestive of wernicke korsakoff syndrome are depressive or psychotic symptoms, abusing alcohol, delusions or hallucinations, hostile behavior [symcat.com]

[…] following: O inability to form new memories O loss of memory, which can be severe O making up stories (confabulation) O seeing or hearing things that are not really there (hallucinations [books.mcai.org.uk]

Hallucinogen Delusional Disorder

Of hallucinations: Auditory Gustatory Olfactory Somatic/tactile hallucination Visual hallucination Mood-congruent hallucination Mood-incongruent hallucination Of delusions [diffen.com]

hallucinations. [patient.info]

[…] induced psychosis w hallucinations Cannabis psychosis with hallucinations Cannabis-induced psychotic disorder with hallucinations Cocaine induced psychosis w hallucinations [icd9data.com]

Mental Disorder

This study was conducted to assess the impact of religious affiliations on the phenomenology of delusions and hallucinations. [doi.org]

Other types of hallucinations can include olfactory hallucinations (experiencing smells), gustatory (tastes), or tactile (feeling like someone or something is touching you [glmhc.net]

[…] without a stimulus Hallucinations can occur in any sense—touch, smell, taste, or vision—but auditory hallucinations are the most common (usually “hearing voices”) Delusions [doi.org]

Narcolepsy

Cataplexy; sleep paralysis, and hypnagogic hallucinations frequently accompany narcolepsy. [icd9data.com]

Often hallucinations accompany it. Sleep paralysis occurs less frequently when patients sleep in uncomfortable positions. [symptoma.com]

Other hallucinations can be more random or include melodies, feelings of light rubbing, touching, and even levitation. [web.archive.org]

Mania

If possible, specify whether the psychotic features are mood-congruent or mood-incongruent: Mood-Congruent Psychotic Features: Delusions or hallucinations whose content is [web.archive.org]

Overview Schizoaffective disorder is a mental disorder in which a person experiences a combination of schizophrenia symptoms, such as hallucinations or delusions, and mood [mayoclinic.com]

H2 receptor antagonists can be associated with central adverse drug reactions (ADRs), like confusion, delirium, hallucinations, slurred speech or headaches. [ncbi.nlm.nih.gov]

Anti-NMDA Receptor Encephalitis

In view of refractory seizures, hallucinations, psychobehavioral and catalepsy like symptoms, and CSF showing lymphocytic pleocytosis, possibility of autoimmune encephalitis [ncbi.nlm.nih.gov]

She developed disorientation and hallucination after fever and vomiting. Hypothermia, hypoventilation, hypertension, paralytic ileus and hyponatremia were present. [ncbi.nlm.nih.gov]

[…] present a case of a 15 year-old female adolescent with first-episode psychosis with anti-NMDA receptor encephalitis not related to tumor, which manifested with delusion, hallucinations [ncbi.nlm.nih.gov]

Narcolepsy-Cataplexy Syndrome

Hallucinations are called Hypnagogic when they occur while falling asleep Hypnopompic when they occur while awakening Hypnagogic hallucinations occur in about one third of [merckmanuals.com]

[…] daytime sleepiness (EDS), cataplexy, hypnagogic hallucinations and sleep paralysis. [patient.info]

Hypnagogic hallucinations; (∼ 50% of cases): vivid, often frightening visual or auditory hallucinations that occur as the patient falls asleep Hypnopompic hallucinations: [amboss.com]

Childhood Schizophrenia

Tactile and visual hallucinations seem relatively rare. [en.wikipedia.org]

Hallucinations can be in any of the senses, but hearing voices is the most common hallucination. Disorganized thinking. [mayoclinic.com]

Hallucinations, as with adult cases, are usually auditory in childhood schizophrenia (hearing external voices that do not exist); visual and tactile (touch) hallucinations [medicalnewstoday.com]