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Cognitive processes causing pupil dilation in a sequential multitasking experiment

Wagenaar, M. (2013) Cognitive processes causing pupil dilation in a sequential multitasking experiment. Bachelor's Thesis, Artificial Intelligence.

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Abstract

Certain cognitive processes are reflected in dilation of the human eye pupil. In ongoing research, it was found that the eye pupil dilated just before participants made a decision to switch between tasks during a sequential multitasking experiment. There are several possible explanations for this phenomenon. Two of these explanations involve making a decision. The pupil size increase could be caused by a `pure' decision, or by a decision which involves deliberate planning. The current research is an attempt to rule out the planning factor by introducing a condition which is entirely voluntary. The involuntary condition - the subjects were told to switch to the secondary task a fixed number of times - remained. Both conditions showed a sudden increase in pupil size just before the participants pressed a button to switch to the secondary task. No significant difference between the conditions was found, indicating that the increase in pupil size was mainly caused by a decision process which did not involve a deliberate planning component.

Item Type: Thesis (Bachelor's Thesis)
Degree programme: Artificial Intelligence
Thesis type: Bachelor's Thesis
Language: English
Date Deposited: 15 Feb 2018 07:53
Last Modified: 15 Feb 2018 07:53
URI: http://fse.studenttheses.ub.rug.nl/id/eprint/11144

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