INVESTIGATION OF VISUAL AND AUDITORY SIMPLE REACTION TIME OF INDIVIDUALS WITH MENTAL RETARDATION

Bekir Rıfat Özaslan, Mürsel Biçer, Mustafa Özdal, Mehmet Vural, Gümrah Şan

Abstract


The aim of this study is investigation of visual and auditory basic reaction time differences of individuals with mild, moderate, and severe mental retardation. Totally 57 males (n = 40) and female (n = 17) individuals with mild (n = 23), moderate (n = 22), and severe (n = 12) mentally retarded participated in this study. Computerized reaction time tests (VRT: www.humanbenchmark.com; ART: cognitivefun.net) was used for visual reaction time (VRT) and auditory reaction time (ART). Reaction time was measured five times, and the mean variable saved as millisecond in both tests. Kruskal Wallis and Mann-Whitney U tests were used for analysis of obtained data. There was no significant difference in VRT and ART between male and female individuals (p > 0.05). Significant difference was found in VRT and ART parameters between mental retardation categories (p<0.05). Significances were observed between mild and severe mental retardation categories both VRT and ART (p<0.05). In summary, it could be said that gender isn’t affect visual and auditory basic reaction time in individuals with mental retardation; however, the severity of mental retardation may have negative effect on basic reaction time.

 

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Keywords


mental retardation, reaction, visual, auditory, gender

References


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DOI: http://dx.doi.org/10.46827/ejse.v0i0.573

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