The influence of visual perception for hands on spatial attention of peripersonal space(Summaries of Awarded Presentation at the 28th Annual Meeting)

抄録

Since human hands frequently interact with external objects, it is important to detect events that will occur near the hands as fast as possible. Previous studies have suggested that the visual detection of a target near a hand is facilitated relative to detection distant from the hand (Reed et al., 2006). However, their investigations have focused on the palm, because it is normally the contact surface of the hand. Our study investigated whether a facilitated detection would occur with the back of the hand, that has little interaction with objects, when it was facing towards targets. The results showed a different pattern between the palm of the hand and the back. In addition, this pattern appears to be related to the function of the back of the hand. These results have suggested that the functional characteristics of the surfaces of the hand affect detection of targets near the hand differently.