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人脑识别不同性别名字反应时的差异研究

         

摘要

Objective To investigate the difference in the recognition speed while subjects of the different gender viewed Chinese names( male, female and neutral) under separated, mixed, and reversed conditions, and further study the “opposites attraction” in the recognition of different gender names.Methods Forty healthy adults(20 male and 20 female, age: 20 ~ 24 years) were enrolled in this study.The visual Chinese test stimuli consisted of male names, female names, and neutral names (50 trials each), respectively under separated, mixed, and up-down conditions.The visual presentation and reaction time of the behavior task were quantified with the eevoke software.Results Comparison of the 3 name stimuli: fastest to female name [(750.94 ± 104.53 ) ms], next to male name [( 879.07 ms ± 126.44) ms], and slowest to neutral name [( 1109.36 ± 158.98 ) ms].Post-hoc t-tests of these 3 name classes also exhibited significant differences among them in R.T.( all at P < 0.001 level ).Between male subjects and female subjects under three conditions [name separated: F(1,19) =0.059, P =0.811; name mixed: F(1,19) = 0.139, P =0.713; name reversed: F(1,19) =3.592, P =0.073], the reaction time on the three types of name had no significant difference.Conclusion Female name elicits fastest R.T.than male name, and the slowest for neutral name.No “opposite-sex attraction” affect in name recognition.Gender of subjects makes no difference in the reaction speed of name classes.Apparently, the stimulus conditions affect the cognitive speed, but they did not change the discipline that reaction speeds of female names are fastest and neutral names are slowest.%目的 探讨男女对不同性别名字认知加工速度是否存在差异,以及在名字分开、混合、倒转3种实验条件下的变化,进一步讨论在对不同性别名字认知时是否存在"异性相吸".方法 招募40名健康成年人选取男性名字、女性名字及中性名字各50个作为视觉刺激材料,采用eevoke软件测试被试在3种任务条件下对不同性别名字的反应时间.结果 在名字分开、混合和倒转条件下均显示出对男性名字、女性名字和中性名字反应时间差异有统计学意义(P<0.001),表现为对女性名字反应速度最快[(750.94±104.53) ms],其次为对男性名字[(879.07±126.44)ms],对中性名字的反应速度[(1 109.36±158.98)ms]最慢.名字分开时反应速度快于名字混合和名字倒转,名字倒转时反应速度最慢.3类名字之间反应速度的两两比较也显示出对不同性别名字反应速度差异有统计学意义(P<0.001).3种条件下[名字分开:F(1,19)=0.059,P=0.811;名字混合:F(1,19)=0.139,P=0.713;名字倒转:F(1,19)=3.592,P=0.073]男性被试与女性被试对同一性别名字的反应时间差异无统计学意义.结论 人脑对女性名字的反应速度均快于对男性名字的反应速度,对中性名字的反应时间最长;对不同性别名字认知过程中不存在"异性相吸";刺激条件影响反应速度,但不影响对女性名字反应最快而对中性名字反应最慢的规律.

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