THE COMPARISON OF EARLY VISUAL INFORMATION PROCESSING IN PATIENTS WITH SCHIZOPHERNIA, MAJOR DEPRESSION AND NORMAL INDIVIDUALS

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HASSANI J.; HADIANFARD H.; GOUDARZI M.A.; RAHIMI CH.

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Journal: Journal of Psychology Year:2006 | Volume:10 | Issue:2 (38) Page(s): 200-221

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Title

THE COMPARISON OF EARLY VISUAL INFORMATION PROCESSING IN PATIENTS WITH SCHIZOPHERNIA, MAJOR DEPRESSION AND NORMAL INDIVIDUALS

Author(s)

HASSANI J. | HADIANFARD H. | GOUDARZI M.A. | RAHIMI CH. | Issue Writer Certificate

Keywords

VISUAL INFORMATION PROCESSINGQ3

VISUAL BACKWARD MASKINGQ3

SCHIZOPHRENIAQ3

DEPRESSIONQ2

CULTUREQ2

Abstract

This study aims to compare early VISUAL INFORMATION PROCESSING in patients with SCHIZOPHRENIA, major DEPRESSION and normal individuals. 32 schizophrenic patients (15 acute patients and 17 chronic patients), 32 patients with major DEPRESSION (14 patients with psychotic symptoms and 18 patients with nonpsychotic symptoms) and 32 normal individuals were chosen. Age range of the sample was 19 to 51. The 3 groups were matched on the basis of age, sex and education. Subjects in all groups were assessed by the VISUAL BACKWARD MASKING Task. The results indicated that schizophrenic patients had significantly poorer performance in comparison to patients with major DEPRESSION and normal individuals in all Interstimulus Intervals (ISI) (20, 40, 60, 80 & 100 Milliseconds) of the VISUAL BACKWARD MASKING Task. Also, patients with major DEPRESSION in comparison with normal individuals had significantly poorer performance in ISI of the VISUAL BACKWARD MASKING Task. Comparison of means of the 3 groups in the no masked condition, showed that the schizophrenic patients had significantly poorer performance in comparison to patients with major DEPRESSION and normal individuals, but no significant difference was observed between patients with major DEPRESSION and the normal individuals in this aspect. Repeated measure Analysis of Variances revealed that, with the increase in the Interstimulus Intervals (ISI); the VISUAL BACKWARD MASKING performance in all 3 groups improved. It is concluded that results of this study are similar to results of different CULTUREs and are in accord with general principles governing the VISUAL BACKWARD MASKING.

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References

THE STUDY OF RELIABILITY AND VALIDITY OF BECK HOPELESSNESS SCALE IN A GROUP OF SHIRAZ UNIVERSITY STUDENTS

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APA: Copy

HASSANI, J., HADIANFARD, H., GOUDARZI, M.A., & RAHIMI, CH.. (2006). THE COMPARISON OF EARLY VISUAL INFORMATION PROCESSING IN PATIENTS WITH SCHIZOPHERNIA, MAJOR DEPRESSION AND NORMAL INDIVIDUALS. JOURNAL OF PSYCHOLOGY, 10(2 (38)), 200-221. SID. https://sid.ir/paper/54386/en

Vancouver: Copy

HASSANI J., HADIANFARD H., GOUDARZI M.A., RAHIMI CH.. THE COMPARISON OF EARLY VISUAL INFORMATION PROCESSING IN PATIENTS WITH SCHIZOPHERNIA, MAJOR DEPRESSION AND NORMAL INDIVIDUALS. JOURNAL OF PSYCHOLOGY[Internet]. 2006;10(2 (38)):200-221. Available from: https://sid.ir/paper/54386/en

IEEE: Copy

J. HASSANI, H. HADIANFARD, M.A. GOUDARZI, and CH. RAHIMI, “THE COMPARISON OF EARLY VISUAL INFORMATION PROCESSING IN PATIENTS WITH SCHIZOPHERNIA, MAJOR DEPRESSION AND NORMAL INDIVIDUALS,” JOURNAL OF PSYCHOLOGY, vol. 10, no. 2 (38), pp. 200–221, 2006, [Online]. Available: https://sid.ir/paper/54386/en

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