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Abstract #4015

Event-related decoding of visual stimulus information using short-TR BOLD fMRI at 7T

Yoichi Miyawaki1,2,3, Daniel A Handwerker3, Javier Gonzalez-Castillo3, Laurentius Huber3,4, Arman Khojandi3, Yuhui Chai3, and Peter A Bandettini3
1The University of Electro-Communications, Tokyo, Japan, 2JST PRESTO, Tokyo, Japan, 3National Institutes of Mental Health, BETHESDA, MD, United States, 4University of Maastricht, Maastricht, Netherlands

Spatio-temporal dynamics of neural activity plays a pivotal role in forming our perception. Ultra-high field fMRI allows us to visualize fine spatial patterns of neural activity but little is known about its dynamics because it is typically believed to lack sufficient temporal resolution - due either to scanner or hemodynamic limitations. Here we demonstrate that event-related fMRI and multivariate pattern analyses allows us to decode visual information faster than the hemodynamic response, suggesting possibility to analyze neural information representation at high temporal resolution.

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