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Features of Hallucinations

Author: Bruno, Posted on Wednesday, June 16 @ 10:20:15 IST by RxPG  

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Psychiatry


All of the following are features of hallucinations, except:

1.It is independent of the will of the observer.
2.Sensory organs are not involved.
3.It is a vivid as that in a true sense perception.
4. It occurs in the absence of perceptual stimulus.


Answer
3.It is a vivid as that in a true sense perception.

Reference
Kaplan and Sadock’s Synopsis of Psychiatry Page 284.

Quality
Thinker

Status
New Question

QTDF
All books define Hallucination !!

Discussion
Kaplan and Sadock defines Hallucination as “false sensory perception, not associated with real external stimulus. Where as Illusion is misperception or misinterpretation of real external stimulus

Explanation

1.It is independent of the will of the observer and this statement is true. (though there is a rare type which is dependent 

2.Sensory organs are not involved and this is a true statement. Sensory organs are involved only in Illusion. Hallucination involves only SENSATIONS

3. It is a vivid as that in a true sense perception. Remember that not all hallucinations are as vivid as in true sense percetion. Only the only the hallucinations which occur in Delirium tremens are vivid

4. It occurs in the absence of perceptual stimulus. And this is the very definition of Hallucination

Comments
Any one who says that the answer is not 3, kindly give your definition of Illusion
Remember that SENSE ORGANS and SENSATIONS are different terms. Sensations are involved in both Hallucination and Illusion where as SENSE ORGANS ARE INVOLVED IN ILLUSION only

Tips
Make sure that you know about the various types of Hallucinations

Explanation by Dr Bruno, Author of

Author Dr Bruno, Publisher Jaypee


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