Abstract

Background: Yoga Nidra is an ancient meditative relaxation technique known to relieve stress. Its impact on reaction time has not been studied.

Aim and Objective: The aim of our study was to study the effect of Yoga Nidra on visual reaction time.

Materials and Methods: Visual reaction time simple reaction time (SRT) choice reaction time (CRT) using Deary Liewald software was recorded in 44 medical students aged 18–21 years, before and after practicing Yoga Nidra for 20 min. The results were compared with regard to change in the mean values of SRT, CRT, and mean central processing time (MCPT) (CRT-SRT). Statistical analysis was done using unpaired t-test and statistical significance (P < 0.05) was calculated.

Results: We found statistically significant change in the visual reaction time, in all the parameters, that is, SRT, CRT, and MCPT after subjecting the students to Yoga Nidra.

Conclusion: Yoga Nidra significantly affects visual reaction time indicating the beneficial effect of this technique on cognition.

Key words: Yoga Nidra; Visual Reaction Time; Simple Reaction Time; Choice Reaction Time