Using intracranial electrical stimulation and electrophysiological techniques to reveal the role of theta and gamma neural oscillations in the functional connectivity of human visual cortex

Recently, Fang Fang's research group from the School of Psychology and Cognitive Sciences of Peking University, McGovern Institute for Brain Science, and Peking University-Tsinghua Life Science Joint Center published a paper entitled "Distinct roles of theta and gamma rhythms in inter- areal interaction in human visual cortex revealed by cortico-cortical evoked potentials" research paper

The visual cortex of mammals and humans has an elaborate hierarchical structure, and the functional connections between brain regions at all levels lay the foundation for visual processing

To this end, this study innovatively adopted the cortico-cortical evoked potential (CCEP) technique

A total of 9 patients undergoing intracranial stereo-electroencephalogram (SEEG) monitoring were included in this study

Analysis of the 100 – 500 ms time window after electrical stimulation revealed that the CCEP signals of V1-LVC and V1-HVC exhibited distinct time-frequency characteristics

The first author of this article is Luo Lu (currently a lecturer at the School of Psychology, Beijing Sport University), a postdoctoral fellow in the research group, and the corresponding authors are Professor Fang Fang and Assistant Researcher Wang Qian

Luo, L.

2022-08-14