Fig. 1

Fundamental understanding of microsaccadic activity in response to emotions. a Changes in microsaccadic rates under the presentation of emotional pictures: an initial drop period followed by a rebound period. The inhibited rebound process of the negative emotional condition was statistically significant compared to that of the scrambled, neutral, or positive condition [12], although the microsaccadic rate during the rebound was more than that of the prestimulus period. b Direction of the microsaccades (the average number of appearance) during the rebound period (400–600 ms) in response to negative pictures to the left (red line) or right (blue line) side [12]