양성 및 음성 정신분열증 환자의 시각적주의폭에 관한 연구

• 영문명: A Study of Visual Attention Span in Positive and Negative Schizophrenic Patients
• 발행기관: 대한신경정신의학회
• 저자명: 최정인 이형영 윤진상
• 간행물 정보: 『신경정신의학』제27권 제5호, 882~892쪽, 전체 11쪽
• 주제분류: 의약학 > 정신과학
• 파일형태: PDF
• 발행일자: 1988.09.30

영문 초록

This study was performed to compare the visual attention span among three groups of 22 negative schizophrenics, 29 positive schizophrenics and 30 normal controls. The narrowing and broadening of attention span were tested by comparing correct recognition responses of peripheral visual stimulus. The results are as follows : 1) There was a signifcant difference in the total number of correct recognition responses among three agroups ; In controls, the total number of the correct recognition responses was highest and this was followed by positive schizophrenics(P〈0.01). The number of the correct recognition responses was higher in larger stimulus size than in small stimulus size in all three groups(P<0.01). 2) Comparing groups and stimulus size ; there was no significant difference in large stimulus size. In small stimulus size, there was significant difference between postivive schizophrenics and controls(P<0.05), between negative schizophrenics and contro!s(P<0.0l), and between negative schizophrenics and positive schizophrenics(P〈0.01). 3) Comparing groups and display angle, there was no significant difference in display angle 2° among three groups, while there was significant difference in display angle 12° between negative schizophrenics and controls(P<0.0l), and significant differences in display angle 25° between negative schizophrenics and controls and between negative schizophrenics and positive schizophrenics(P〈0.01)，respectively. In summary, these results suggest that negative schizophrenics, unlike postive schizophrenics and controls, are only able to recognize large size peripheral stimulus within a narrow display angle, because of narrowing of attention span.

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