This chapter highlights the benefits of eye-tracking technology in spatial thinking research, specifically in the study of complex cognitive processes used to solve spatial tasks including cognitive strategy selection, cognitive strategy flexibility and spatial language processing. The consistent sex differences found in spatial thinking research (i.e., mental rotation), with males outperforming females, is concerning given the link between spatial ability and success in the STEM fields. Traditional methods like self-reports, checklists and response times methods may not be sufficient to study complex cognitive processes. Advances in eye-tracking technology make it possible to efficiently record and analyze voluminous eye-gaze data as an indirect measure of underlying cognitive processes involved in solving spatial tasks. A better understanding of the cognitive processes underlying spatial thinking will facilitate the design of effective training and educational pedagogy that encourages spatial thinking across both males and females.
