Dyspraxia and agnosia in schizophrenia.
A battery of tests for dyspraxia and agnosia was administered to 51 chronic schizophrenic patients to test the hypothesis that these cortical neurological signs are associated with psychomotor poverty syndrome (poverty of speech, flat affect, decreased spontaneous movement), disorganization syndrome (various disorders of the form of thought, inappropriate affect), abnormal involuntary movements, cognitive impairment, and duration of illness. The findings supported all elements of the hypothesis, and in particular, demonstrated a strong correlation of cortical signs with psychomotor poverty and with cognitive impairment.
Charing Cross and Westminster Medical School, St Dunstans Road, London W6 8RP, UK.
P F
PF
Liddle
Charing Cross and Westminster Medical School, St Dunstans Road, London W6 8RP, UK.
S
S
Haque
Charing Cross and Westminster Medical School, St Dunstans Road, London W6 8RP, UK.
D L
DL
Morris
Charing Cross and Westminster Medical School, St Dunstans Road, London W6 8RP, UK.
T R
TR
Barnes
Association cortex; Disorganization; Negative symptoms; Neurological signs; Psychomotor poverty; Reality distortion; Schizophrenia