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This is a list of major and frequently observed neurological disorders (e.g., Alzheimer's disease), symptoms (e.g., back pain), signs (e.g., aphasia) and syndromes (e.g., Aicardi syndrome). There is disagreement over the definitions and criteria used to delineate various disorders and whether some of these conditions should be classified as ...
Peduncular hallucinosis (PH) is a rare neurological phenomenon that causes vivid visual hallucinations that typically occur in dark environments and last for several minutes. Unlike some other kinds of hallucinations, the hallucinations that patients with PH experience are very realistic, and often involve people and environments that are ...
It involves auditory and visual hallucinations, most commonly accusatory or threatening voices. [4] The risk of developing alcoholic hallucinosis is increased by long-term heavy alcohol abuse and the use of other drugs. [5] Descriptions of the condition date back to at least 1907. [6]
A hallucination is a perception in the absence of an external stimulus that has the compelling sense of reality. [6] They are distinguishable from several related phenomena, such as dreaming (), which does not involve wakefulness; pseudohallucination, which does not mimic real perception, and is accurately perceived as unreal; illusion, which involves distorted or misinterpreted real ...
Visual hallucinations are not restricted to the transitional states of awakening or falling asleep and are a hallmark of various neurological and psychiatric conditions. [3] They are documented in schizophrenia , toxic encephalopathies, migraines , substance withdrawal syndromes , focal central nervous system lesions, and psychotic mood ...
"We see odd neurological syndromes from time to time... sometimes we figure them out, sometimes we don’t,” said one researcher. Brain disorder with symptoms including hallucinations and memory ...
Tactile hallucinations are recurrent symptoms of neurological diseases such as schizophrenia, Parkinson's disease, Ekbom's syndrome and delirium tremens. Patients who experience phantom limb pains also experience a type of tactile hallucination. Tactile hallucinations are also caused by drugs such as cocaine and alcohol. [1]
Oneirophrenia is often confused with an acute case of schizophrenia due to the onset of hallucinations. [1] The severity of this condition can range from derealization to complete hallucinations and delusions. Oneirophrenia was described for the first time in the 1950s but was studied more in the 1960s.