Investigating neural effects of attention training technique

[Speaker] Usui, Kaori:1
[Co-author] Kawashima, Issaku:1, Haitani, Tomosumi:1, Sugiyama, Fukiko:1, Sasaki, Aya:1, Takahashi, Toru:1, Kumano, Hiroaki:2
1:Graduate School of Human Sciences, Waseda University (Japan), 2:Faculty of Human Sciences, Waseda University (Japan)

Attention training technique (ATT) improves attentional control and reduces various mood disorders. However, it is unclear how ATT modifies brain function. Here, we examined neural effects of ATT. Twenty students performed ATT as homework for 20 days, and the intracerebral source localization of their electroencephalograms was estimated under resting conditions and during ATT before and after the homework assignment. Brain activity before and after the homework assignment was compared. The results showed significantly decreased alpha 1 in the left inferior prefrontal field and alpha 2 in the right inferior temporal field under divided attention, a component of ATT. Decreased alpha power suggests increased cerebral blood flow. The activated fields may relate to process of cross-modal sensory information. Therefore, ATT may enable subjects to receive auditory information while using visual images, making it easy to divided attention.
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