Poster C10, Sunday, March 26, 5:00 – 7:00 pm, Pacific Concourse
Revealing the interaction between anxiety-traits and meditation in an attentional reorienting task by brain oscillations
Shao-Yang Tsai1, Satish Jaiswal1, Wei-Kuang Liang1, Chi-Hung Juan1; 1National Central University
Prior studies have demonstrated that meditation may improve cognitive functions such as attention and executive control (see a review by Tang et al., 2015). However, the underlying mechanisms for such improvements remain unclear. Therefore, we aimed to investigate the modulating effect of meditation on the mechanism of contingent reorienting in a rapid serial visual presentation (RSVP) task (Chang et al., 2013, 2016) with electrophysiological recordings. We recruited 24 meditators who had experienced meditation at least for one year, and 24 non-meditators without any prior experience of meditation. All subjects were college students and completed two sessions of experiment in two separate days. The two sessions differed in the manipulation of resting versus meditating state for 30 minutes in a counter balanced order. After meditating or resting, they performed the RSVP task. The questionnaire data that was collected before the experiment, showed that meditators had lower trait of anxiety and less avoidance from unpleasant things as compared to the control group, but displayed equal degree of mindful trait within the group. In behavioral results, meditation condition had better facilitation effects of attentional capture as compared to resting condition for both groups. We also found that only meditators’ anxiety trait is negatively correlated with mindfulness trait, but no correlation for control group. Event-related potentials analysis showed that meditators had larger N2pc when distractor appeared. The EEG frequency data revealed that meditators’ right frontal gamma power was stronger than control group after meditation which may indicate better efficiency in attentional reorienting.
Topic Area: ATTENTION: Other