Auditory Reaction Times and Hand Asymmetry Under Blindfolded Conditions: A Gender-Based Analysis of Averaged Motor Performance

Authors : Murat Cenk Çelen, Engin Sağdilek

Pages : 373-377

Doi:10.32708/uutfd.1722028

View : 87 | Download : 185

Publication Date : 2025-12-08

Article Type : Research Paper

Abstract :This study aimed to evaluate the effects of hand dominance and gender on auditory reaction times under blindfolded and randomized conditions, while also examining bilateral motor coordination through simultaneous response evaluation. Twenty-eight healthy participants (16 female, 12 male) completed auditory reaction time tasks under three conditions: dominant hand, non-dominant hand, and simultaneous bilateral responses. Each condition was repeated 10 times. Mean and standard deviation (SD) values were calculated from all trials. Paired and independent t-tests were used for statistical comparison. The dominant hand produced significantly faster responses than the non-dominant hand (p = 0.022) and also exhibited lower intra-individual variability (p = 0.030), indicating higher consistency. Gender had no significant effect on reaction time (p = 0.249). Interestingly, in the simultaneous condition, the mean difference in reaction time between hands was −1.44 milliseconds, with the non-dominant hand often responding faster—a result that challenges conventional assumptions about motor asymmetry. Auditory reaction time is influenced by hand dominance in both speed and consistency. The surprising dominance of the non-dominant hand during simultaneous responses raises important questions about interhemispheric coordination and sensorimotor integration and warrants further neurophysiological investigation.
Keywords : İşitsel Reaksiyon Süresi, El Baskınlığı, Motor Asimetri, Duyu-Motor Entegrasyonu, Eş Zamanlı Yanıt

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