2011•Zhonghua xingwei yixue yu naokexue zazhiRequires access
A study of line bisection and number bisection in patients with schizophrenia
Zheng Sun, Yi Dong
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Abstract
Objective To investigate the existence of neglect and explore the relationship between spacial attentional deficits and hemisphere in patients with schizophrenia. Methods 51 schizophrenic patients and 55 healthy controls were measured with line bisection test and number bisection test、 Results In the Line Bisection Test,shcizophrenic patients group showed a negative deviation, in which the 2cm line( -0.03 ± 0. 74 )% and mean ( - 0. 02 ± 0. 03 ) % deviation rates were more significantly leftward than that of the normals ( ( 0. 00 ±0.02 ) %, ( - 0.00 ± - 0.01 ) %, P ＜ 0. 05 ) respectively. The mean deviation rates of the patients (P ＜ 0. 01 ) and control groups (P ＜ 0. 05 ) were also significantly leftward compared with zero value. In the number bisection test,schizophrenic patients group showed a negative deviation and a significant leftward bias on the interval 5 ( - 0.07 ±0.18)% ,7( -0.08 ±0.22)% and 9( -0.09 ±0.28)% ) than that of the normals(( -0.01 ±0.05)% ,(0.01± 0. 08 ) % and (0.00 ± 0.14 ) %, P ＜ 0.05 respectively). Conclusion Schizophrenic patients have a right-neglect, suggesting that spacial attentional deficits exist, and it may be related to the left cerebral hemisphere dysfunction.
Key words:
Schizophrenia; Line bisection; Number bisection; Neglect