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Cognitive Mechanisms of Transsaccadic Perception

Date

2019-09-24

Journal Title

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Type

Thesis

Degree Level

Masters

Abstract

Transsaccadic perception is characterised as the ability to perceive our visual world as stable and unmoving, despite the retinal image of our visual world changing each time we make rapid eye movements (called saccades). Currently the underlying mechanisms of transsaccadic perception, specifically the mechanisms that maintain an updated internal spatial map of objects in our environment during saccades, remain unclear. Although considerable progress has been made toward a better understanding of the basic mechanisms of transsaccadic perception with stationary objects in our environment, little is known about how our brain keeps track of moving objects during a saccade, which is a real-world task we do everyday (e.g. when driving or playing sports). In this thesis I describe two studies where I investigated transsaccadic perception of moving objects. The first examines how well we can track moving objects across saccades when the saccade amplitude and eccentricity of the target vary in a purely egocentric task. The second assess the extent to which we rely on visual cues in our environment (i.e. allocentric information) during transsaccadic motion tracking. My research is among the first to explore how our brain processes and integrates moving stimuli during saccades. Additionally, it sheds further light on the cognitive mechanisms of transsaccadic perception and offers insights into our everyday visual conscious experience.

Description

Keywords

Motion perception, Eye tracking, Saccades, Transsaccadic perception, Visual perception, Spatial updating

Citation

Degree

Master of Arts (M.A.)

Department

Psychology

Program

Psychology

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