Page No: 351-359
Prerita Bahri, Trayambak Tiwari, Shreshtha Yadav, Anil Kumar Yadav,
Banaras Hindu University, Varanasi
Anju Lata Singh
Vasant Kanya Mahavidyalaya, Varanasi
Left-handedness has been associated with certain advantages in the functioning of the
corpus callosum, contrarily it is also highly correlated with development of
psychopathology. This article tests the former, using bilateral presentation redundancy
tasks on both left and right-handed individuals (N=60). Participants were instructed to
identify where the meaningful word was presented whether in right visual field (RVF),
left visual field (LVF), or bilateral visual field (BVF). Handedness was assessed on the
revised Edinburgh Handedness Inventory (Veale, 2014). Reaction time and accuracy
were tested across visual presentations using Wilcoxon signed-rank test. Findings
indicated that left-handers responded quicker compared to right handers in bilateral
condition, displaying superior interhemispheric communication. Though, this trend did
now follow in terms of accuracy. However, right handers did demonstrate higher accuracy
in contralateral presentation to the left hemisphere. Additional analysis (using Mann-
Whitney U test) showed that females presented shorter reaction time latencies, though
such trends did not follow in terms of accuracy, leaving scope for further research