Attention-Regulated Activity in Human Primary Visual Cortex

• DOI: 10.1152/jn.1998.79.4.2218
• Publication Date: 2017-12-25T02:39:54Z
• Authors: Takeo Watanabe; Yuka Sasaki; Satoru Miyauchi; Benno Putz; Norio Fujimaki; Matthew Nielsen; Ryosuke Takino; Satoshi Miyakawa
• Keywords: Male; 03 medical and health sciences; 0302 clinical medicine; Psychophysics; Humans; Attention; Female; Magnetic Resonance Imaging; Visual Cortex

Watanabe, Takeo, Yuka Sasaki, Satoru Miyauchi, Benno Putz, Norio Fujimaki, Matthew Nielsen, Ryosuke Takino, and Satoshi Miyakawa. Attention-regulated activity in human primary visual cortex. J. Neurophysiol. 79: 2218–2221, 1998. Effects of attention to a local contour moving object on the activation cortex (area V1) were examined. Local cerebral oxygenation changes (an index neuronal activity) area V1 measured with functional magnetic resonance imaging (fMRI) conditions including following two: 1) when was selectively directed toward one side wedge (the condition) 2) wedges viewed passively passive condition). Activation found be higher condition than condition. To our knowledge, this is first finding that motion activates as early V1. We suggest attentional task dependent.