Behavioral stochastic resonance within the human brain

被引:168
作者
Kitajo, K [1 ]
Nozaki, D
Ward, LM
Yamamoto, Y
机构
[1] Univ Tokyo, Educ Physiol Lab, Grad Sch Educ, Tokyo 1130033, Japan
[2] Univ British Columbia, Dept Psychol, Vancouver, BC V6T 1Z4, Canada
[3] Res Inst Natl Rehabil Ctr Disabled, Dept Motor Dysfunct, Tokorozawa, Saitama 3598555, Japan
[4] Japan Sci & Technol, PRESTO, Saitama 3320012, Japan
关键词
D O I
10.1103/PhysRevLett.90.218103
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We provide the first evidence that stochastic resonance within the human brain can enhance behavioral responses to weak sensory inputs. We asked subjects to adjust handgrip force to a slowly changing, subthreshold gray level signal presented to their right eye. Behavioral responses were optimized by presenting randomly changing gray levels separately to the left eye. The results indicate that observed behavioral stochastic resonance was mediated by neural activity within the human brain where the information from both eyes converges.
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页数:4
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