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Working Memory for Actions During Reinforcement Learning.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Working Memory for Actions During Reinforcement Learning./
Author:	Bhangal, Sabrina.
Description:	1 online resource (83 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 84-09, Section: B.
Contained By:	Dissertations Abstracts International84-09B.
Subject:	Cognitive psychology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29321087click for full text (PQDT)
ISBN:	9798374412857

Working Memory for Actions During Reinforcement Learning.
Bhangal, Sabrina.

Working Memory for Actions During Reinforcement Learning. - 1 online resource (83 pages)

Source: Dissertations Abstracts International, Volume: 84-09, Section: B.

Thesis (Ph.D.)--University of Missouri - Columbia, 2022.

Includes bibliographical references

The ability of an individual to learn from delayed action outcomes helps them to better adapt to their environment. In order for learning to take place, they might utilize working memory to hold in mind a response they have just made and compare it to feedback received. This dissertation encompasses three experiments that test several putative neural correlates of working memory during the prefeedback delay. In the first experiment, I show that two EEG measures, the stimulus-preceding negativity (SPN) and lateralized theta, decline in amplitude over the course of learning a new motor skill. In the second experiment, I show that SPN and frontocentral beta are of greater amplitude in a condition that imposes a high load on working memory for actions. In the third experiment, I show that SPN and frontocentral beta increased progressively across conditions with one, two, or three cues in a probabilistic categorization task. This effect was greatly reduced in participants whose ability to develop complex hypotheses regarding the relation of stimuli, responses, and outcomes was impaired by Parkinson's Disease. By adopting three different approaches to testing the relationship of EEG measures to the brain's ability to bridge the gap between responses and outcomes, this dissertation provides converging evidence regarding the role of working memory.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798374412857Subjects--Topical Terms:

523881
Cognitive psychology.
Subjects--Index Terms:

Working memoryIndex Terms--Genre/Form:

542853
Electronic books.

Working Memory for Actions During Reinforcement Learning.
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502 $a Thesis (Ph.D.)--University of Missouri - Columbia, 2022.
504 $a Includes bibliographical references
520 $a The ability of an individual to learn from delayed action outcomes helps them to better adapt to their environment. In order for learning to take place, they might utilize working memory to hold in mind a response they have just made and compare it to feedback received. This dissertation encompasses three experiments that test several putative neural correlates of working memory during the prefeedback delay. In the first experiment, I show that two EEG measures, the stimulus-preceding negativity (SPN) and lateralized theta, decline in amplitude over the course of learning a new motor skill. In the second experiment, I show that SPN and frontocentral beta are of greater amplitude in a condition that imposes a high load on working memory for actions. In the third experiment, I show that SPN and frontocentral beta increased progressively across conditions with one, two, or three cues in a probabilistic categorization task. This effect was greatly reduced in participants whose ability to develop complex hypotheses regarding the relation of stimuli, responses, and outcomes was impaired by Parkinson's Disease. By adopting three different approaches to testing the relationship of EEG measures to the brain's ability to bridge the gap between responses and outcomes, this dissertation provides converging evidence regarding the role of working memory.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
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650 4 $a Psychobiology. $3 555678
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653 $a Reinforcement learning
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