2022 Volume 40 Issue 1 Pages 22-38
This study reviewed the progress of spontaneous eye blink research over the past 40 years. Three blink researchers who met at a conference established the “Blink Study Group (1992).” This group published a book entitled the Psychology of Blinking. Moreover, it was a successful forum for presenting research, which nurtured and developed other researchers in the field. Blink research relies on the quantification of blinking. This review discusses categories of blink quantification, including the blink rate, the inter-blink interval, the blink latency, and the temporal distribution of blinks. These categories help clarify the cognitive processing stage of blinking. Many recent studies have discussed the relationship between blinking and dopamine. The review ends by considering the future of blink research.