Neural Mechanisms of Visually Presented String Recognition though Optical: A fMRI Study

Abstract

fMRI was used to investigate the neural substrates responsible for Japanese string reading. The subjects performed Sr (read strings from right to left) and Sl (read strings from left to right) tasks. According to the analysis results, a significant increase blood flow during the Sr task relative to Sl task was detected in multiple brain regions, including the lingual gyrus, fusiform gyrus, superior inferior and middle occipital gyrus, inferior temporal gyrus, superior parietal lobule, inferior and middle frontal gyrus, parahippocampal gyrus and medial aspect of the frontal lobe. These results strongly supported the conclusions of past studies about word perception. In addition, we found the spatial perception and working memory were particular importance for the perception of string.