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Task-invoked pupillary response
Task-invoked pupillary response (also known as the "Task-''Evoked'' pupillary response" is a pupillary response caused by a cognitive load imposed on a human and as a result of the decrease in parasympathetic activity in the peripheral nervous system.〔() Kramer, A. F., 1991. Physiological metrics of mental workload: A review of recent progress. In: Damos, D. L. (ed.) ''Multiple-task Performance''. London: Taylor & Francis Ltd.〕 It is found to result in a linear increase in pupil dilation as the demands a task places on the working memory increase. Beatty, J.〔() Beatty, J., 1982, Task-evoked pupillary responses, processing load, and the structure of processing resources. ''Psychological Bulletin'', 91, 276-292.〕 evaluated task-invoked pupillary response in different tasks for short-term memory, language processing, reasoning, perception, sustained attention and selective attention and found that it fulfils Kahneman’s〔() Kahneman, D., 1973, ''Attention and effort'', Englewood Cliffs, N. J., Prentice-hall.〕 three criteria for indicating processing load. That is, it can reflect differences in processing load within a task, between different tasks and between individuals. It is used as an indicator of cognitive load levels in psychophysiology research.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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