정신분열증 환자의 인지적 결함ㅡ기억 및 기억 기원의 변별 과정을 중심으로 ᅳ

Cognitive Deficits of the Schizophrenics — Memory and Discrimination of The Memory Sources ㅡ

The authors investigated the relation between the disturbance of thought and perception and information processing, particular memory and discrimination of memory sources, in the schizophrenic patients by using experimental procedures. The author tested 20 schizophrenic patients and 20 normal control subjects who were matched according to age. sex and education. All subjects were given 3 types of material set. The first, experimenter presentation set. were made up of 10 opposite word pairs. The second & third set were 10 cards each. A usual word with a cue letter of an opposite word. They were instructed to imagine only with the second set. and to write the opposite word along the cue letter with the third set. After the response sheets had been collected, they were asked to recall all responses in any order. Next, a new test sheet was given for the recognition & the discrimination of the memory sources. The result of the research were as follow • 1) Free recall ; A significant decrease of recall ability was found in the schizophrenic group(3.15 words) as compared with the control group(6.68). 2) Recognition(hit rate) ; There was no significant difference of recognition ability between the SPR group(23.15) and the control group(23.6). 3) Schizophrenic group had poorer signal sensitivity(d,). 4) SPR group had more difficulty in discriminatng what they had imagined from what they had written. SPR group and control group were not different in discriminating what they had seen. 5) Error bias of the discrimination ; Schizophrenic group showed markedly poor performance on the discrimination task. They mistook what they had seen as what they had written, what they had imagined as what they had written, and what they had written as what they had see