Hallucination - Revision history

Prab: CSV import

2025-04-06T03:00:36Z

CSV import

@@ Line 1: / Line 1: @@
 A '''hallucination''' is a perception in the absence of external stimulus that has qualities of real perception. Hallucinations are vivid, substantial, and are perceived to be located in external objective space. 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 perception; and imagery (imagination), which does not mimic real perception and is under voluntary control.
 == Types of Hallucinations ==
 Hallucinations can affect any of the senses (visual, auditory, olfactory, gustatory, and tactile) and hence, can be categorized as follows:
 * '''[[Visual hallucination]]s''': Seeing objects, people, or events that are not actually present.
 * '''[[Auditory hallucination]]s''': Hearing voices or sounds that do not exist. This is the most common type of hallucination in people with psychiatric disorders like schizophrenia.
@@ Line 11: / Line 24: @@
 * '''[[Tactile hallucination]]s''': Feeling physical contact from an object or person that does not exist.
 == Causes ==
 Hallucinations can occur for various reasons and can be a symptom of a number of conditions, including:
 * Mental illnesses such as [[schizophrenia]], [[bipolar disorder]], and severe [[depression]].
 * Neurological conditions such as [[dementia]], [[migraines]], [[epilepsy]], and [[brain tumor]]s.
@@ Line 20: / Line 31: @@
 * Certain types of vision or hearing loss can lead to hallucinations (Charles Bonnet syndrome, musical ear syndrome).
 == Treatment ==
 Treatment for hallucinations involves addressing the underlying cause. This can range from medication for conditions such as schizophrenia or bipolar disorder, to therapy for conditions like depression or anxiety, to lifestyle changes in cases where the hallucinations are due to stress or lack of sleep.
 == See Also ==
 * [[Delusion]]
 * [[Psychosis]]
@@ Line 36: / Line 44: @@
 [[Category:Psychiatry]]
 [[Category:Neurology]]

Prab: CSV import

2025-02-20T00:45:26Z

CSV import

← Older revision		Revision as of 00:45, 20 February 2025
Line 36:		Line 36:
	[[Category:Psychiatry]]		[[Category:Psychiatry]]
	[[Category:Neurology]]		[[Category:Neurology]]
			<gallery>
			File:August Natterer Meine Augen zur Zeit der Erscheinungen.jpg\|Hallucination
			</gallery>

Prab at 22:54, 14 May 2023

2023-05-14T22:54:50Z

New page

A '''hallucination''' is a perception in the absence of external stimulus that has qualities of real perception. Hallucinations are vivid, substantial, and are perceived to be located in external objective space. 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 perception; and imagery (imagination), which does not mimic real perception and is under voluntary control.

== Types of Hallucinations ==

Hallucinations can affect any of the senses (visual, auditory, olfactory, gustatory, and tactile) and hence, can be categorized as follows:

* '''[[Visual hallucination]]s''': Seeing objects, people, or events that are not actually present.
* '''[[Auditory hallucination]]s''': Hearing voices or sounds that do not exist. This is the most common type of hallucination in people with psychiatric disorders like schizophrenia.
* '''[[Olfactory hallucination]]s''': Smelling odors (usually unpleasant) that are not actually present.
* '''[[Gustatory hallucination]]s''': Tasting things that aren't there.
* '''[[Tactile hallucination]]s''': Feeling physical contact from an object or person that does not exist.
== Causes ==

Hallucinations can occur for various reasons and can be a symptom of a number of conditions, including:

* Mental illnesses such as [[schizophrenia]], [[bipolar disorder]], and severe [[depression]].
* Neurological conditions such as [[dementia]], [[migraines]], [[epilepsy]], and [[brain tumor]]s.
* Use or withdrawal from certain drugs, including recreational drugs like [[LSD]] or medical drugs like [[prednisone]].
* Extreme stress or lack of sleep.
* Certain types of vision or hearing loss can lead to hallucinations (Charles Bonnet syndrome, musical ear syndrome).
== Treatment ==

Treatment for hallucinations involves addressing the underlying cause. This can range from medication for conditions such as schizophrenia or bipolar disorder, to therapy for conditions like depression or anxiety, to lifestyle changes in cases where the hallucinations are due to stress or lack of sleep.

== See Also ==

* [[Delusion]]
* [[Psychosis]]
* [[Schizophrenia]]
* [[Visual snow]]
{{stub}}
{{Cognition, perception, emotional state and behaviour symptoms and signs}}
[[Category:Hallucinations| ]]
[[Category:Symptoms and signs]]
[[Category:Symptoms and signs of mental disorders]]
[[Category:Psychiatry]]
[[Category:Neurology]]