Eye Movement Profile: Quantification of Cognitive Workload

Abstract

Cognition itself is a qualitative variable but can be quantified in terms of different directly or indirectly associated factors. The eye movement profile is one of them that has been reported since the nineteenth century. Many researchers have considered eye movement as a window to access cognitive abilities in different areas if everyday activities. Moreover, a significant amount of original research and review articles have tried to establish various models to interpret work demand in terms of cognitive workload. However, those past articles are limited to very specific aspects of eye movement profile and with respect to specific tasks. The objective of the current review article was to formulate a model covering every possible aspect of eye movement research concerning human cognition specified with frequently considered eye movement events/profiles. The observation of the current review supports the past research that eye movement is strongly associated with cognition and eye movement profiles could be considered as potential markers for future cognitive psychology research. Significant evidence has been found for Pupilometry, Blink Profile, and Saccade Profile to prepare a model that can interpret cognitive workload. However, the lack of evidence was observed against the Fixation Profile strongly connected with cognition, which might be a relevant future scope in eye movement research. This review article singly would be helpful in the future to interpret cognitive workload through eye movement research across a diverse group of everyday activities.