Visual hallucinations are seen in all
except ?
a) Delirium
b) Depression
c) Schizophrenia
d) Alcohol withdrawal
Correct Answer - B
Ans. is ‘b’ i.e., Depression
Type of
hallucination Causes
Auditory
Schizophrenia, Organic brain syndrome, Alcoholic
hallucinosis manic-depressive illness, Brain
lesions →Pontine or temporal lobe lesions.
Visual
Organic brain disturbances : - Delirium, delirium
tremens, occipital lobe tumors, epilepsy, dementia
Intoxication (LSD, amphetamines, Alcohol,
mescaline), alcohol withdrawal.
Brain lesions
- Unformed visual hallucinations :- Disorders of
occipital lobe or ocular diseases. - Formed visual hallucinations :- Disorders of
temporal lobe, upper brain stein or thalamus
Schizophrenia
lfactory &
gustatory
Temporal lobe diseases (e.g., complex partial
seizure).
Olfactory hallucination may also occur in depression
& schizophrenia
Tactile Schizophreni
Formication :- Cocaine, alcohol withdrawal
Note : Epilepsy and cerebral disorders can cause hallucinations of
all modalities depending on the site of lesions.