Bosch, Sarah van den (2023) It’s in the Eyes: Memory Effects of Preparation Reflected in the Pupil. Research Project 1 (minor thesis), Behavioural and Cognitive Neurosciences.
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Abstract
A warning preceding an event improves response speed, demonstrating the ability to prepare a response in advance. The multiple trace theory of temporal preparation suggests that memory traces influence preparation based on past experiences. Previous research has found that this memory-guided preparation can be momentarily disrupted, indicating that trace retrieval does not affect each trial equivocally. One hypothesized candidate mechanism is that in cases of high arousal, participants’ preparation is driven by explicit task goals, rather than memories retrieved from past trials. In the present study, we utilized pupil dilation as a measure for arousal, and assessed whether pupil dilation is a predictor of memory effects in preparation. We found that baseline pupil size was large at moments of high arousal, particularly during the disruption of memory-guided preparation. Furthermore, we found that the mean transient pupil response reflected differential preparation, resulting from participants’ learned associations. Our results demonstrate a link between the pupil and behavior, providing valuable insights into the role of arousal in memory effects during temporal preparation.
| Item Type: | Thesis (Research Project 1 (minor thesis)) |
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| Supervisor name: | Kruijne, W. |
| Degree programme: | Behavioural and Cognitive Neurosciences |
| Thesis type: | Research Project 1 (minor thesis) |
| Language: | English |
| Date Deposited: | 31 Jul 2023 12:00 |
| Last Modified: | 02 Aug 2023 10:21 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/30792 |
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