ヤマナカ　ケンタロウ    YAMANAKA Kentarou
   山中 健太郎
   所属
食健康科学部 健康デザイン学科
 
生活機構研究科 生活科学研究専攻
 
生活機構研究科 生活機構学専攻
 
女性健康科学研究所 所属教員
   職種
教授
言語種別 英語
発行・発表の年月 2006/12
形態種別 学術雑誌
標題 Stochastic resonance in attention control.
執筆形態 共著
掲載誌名 Europhysics Letters
巻・号・頁 76(6),pp.1029-1035
著者・共著者 Kitajo K. Yamanaka K. Ward LM. Yamamoto Y.
概要 We investigated the beneficialrol e of noise in a human higher brain function, namely visual attention control. We asked subjects to detect a weak gray-level target inside a marker box either in the left or the right visual field. Signal detection performance was optimized by presenting a low level of randomly flickering gray-level noise between and outside the two possible target locations. Further, we found that an increase in eye movement (saccade) rate helped to compensate for the usual deterioration in detection performance at higher noise levels. To our knowledge, this is the first experimental evidence that noise can optimize a higher brain function which involves distinct brain regions above the level of primary sensory systems - switching behavior between multi-stable attention states - via the mechanism of stochastic resonance.
DOI 10.1209/epl/i2006-10377-0