Abstract (eng)
Visual search, as a component of visual attention, is an indispensable aspect of everyday living. Therefore, it would be of interest to learn how to enhance this cognitive function. As a mindfulness-based technique, meditation has been shown to improve cognitive processes, particularly executive functions. We investigated whether Yoga, as a physically oriented kind of mindfulness-based interventions, may also contribute to the enhancement of executive functions, namely task switching and distractor suppression in visual search tasks. In a randomized controlled trial, we investigated the effects of an eight-week Hatha Yoga intervention on inhibition and task switching in 74 participants. Our hypotheses were confirmed in part: Pretest to posttest measurement revealed, as predicted, a higher reduction of mixing costs in task switching for the intervention group compared to the control group. The intervention group had a greater reduction in switching costs from the pre-test to the post- test than the control group. Behavioral results revealed no effect of the intervention on inhibitory function. Future research can expand on these findings by focusing more on relevant intervention components such as mindfulness and physical activity.