Brain Activities at the Right Parahippocampal Gyrus during Tetrapod Image Recognition - Localization of Spatiotemporal Brain Activities for Single Trial EEG on First Image Presentation –

Abstract

The parahippocampal gyrus is related to the immediate memory matching and the recent memory matching in higher-order recognition process in the human brain, and the right parahippocampal gyrus is related to the image recognition. In addition, some recent studies suggest that the parahippocampal gyrus performs memory matching process during the primal visual recognition process. In the previous study, some of the present authors measured electroencephalograms (EEGs) on subjects observing and recalling four tetrapod images. Then we had localized higher-order image recalling process in human brain. In this study, the present authors used single trial EEGs according to images, those are presented at first among the same images, and localized brain activities using equivalent current dipole source localization (ECDL) method. ECDs were localized to the right parahippocampal gyrus during primal visual recognition process.