Illusion is a disorder of-
Ans. is 'b' i.e., Perception Disorders of perceptiono Altered perception:- Sensory distortion (micropsia, hyperacusis), Illusiono False perception:- Hallucination.Thought disordersFormal thought disorders (Disorders of thought process)Disorders of thought contenti) Racing thoughts:- Anxiety, Schizophreniaii) Retarded thoughts:- Depressioniii) Circumstantiality:- Mania, Schizophreniaiv) Thought blocking Schizophrenia, Severe anxietyv) Perseveration:- Organic brain disease, Schizophrenia (occasionally)vi) Loosening of association:- Schizophreniavii) Flight of ideas:- Maniaviii) Tangentialityix) Clunging & punning:- Mania & schizophreniax) Neologism, word salad, Echolalia:- Schizophreniai) Delusion:- Psychosis (Schizophrenia, mania, depression & othersii) Obsessioniii) Compulsioniv) Preoccupationsv) Phobiasvi) Depersonalization & Derealizationo In schizophrenia and mood disorders (depression, mania) all parts of the thought (thought process as well as content) are involved.o However, schizophrenia is conventionally referred as formal thought disorder.
Thought
Perception
Memory
Intelligence
Symptoms & Signs 