Pupil Dilation as a Measure of Cognitive Effort During Memory Reconsolidation

Persistent Link:
http://hdl.handle.net/10150/579241
Title:
Pupil Dilation as a Measure of Cognitive Effort During Memory Reconsolidation
Author:
Bartolomeo, Lisa Ann
Issue Date:
2015
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The pupil is known to dilate in response to numerous cognitive processes, thereby making it a sensitive measure of cognitive effort. While evidence from previous pupilometry studies demonstrates that the pupil dilates during memory encoding and retrieval, the present study aims to determine how pupil dilation reflects the amount of cognitive effort exerted at encoding and retrieval for correctly-recognized and updated information. Ten consenting, volunteer subjects from the University of Arizona completed a classic reconsolidation paradigm that spanned the course of one week, in which subjects were exposed to a total of 68 objects. The paradigm included a directed-forgetting manipulation, in which subjects were instructed to remember or forget certain objects. During encoding and retrieval, pupil diameter was measured using an SMI remote eye tracker. Of these ten subjects, five subjects met procedural protocol and had sufficient data present for analysis. One-way ANOVAs determined there was no significant difference at either encoding or retrieval between correctly-recognized and updated information, regardless of whether subjects were instructed to remember or forget an object at encoding.
Type:
text; Electronic Thesis
Degree Name:
B.S.
Degree Level:
bachelors
Degree Program:
Honors College; Neuroscience & Cognitive Science
Degree Grantor:
University of Arizona
Advisor:
Gómez, Rebecca

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titlePupil Dilation as a Measure of Cognitive Effort During Memory Reconsolidationen_US
dc.creatorBartolomeo, Lisa Annen
dc.contributor.authorBartolomeo, Lisa Annen
dc.date.issued2015en
dc.publisherThe University of Arizona.en
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en
dc.description.abstractThe pupil is known to dilate in response to numerous cognitive processes, thereby making it a sensitive measure of cognitive effort. While evidence from previous pupilometry studies demonstrates that the pupil dilates during memory encoding and retrieval, the present study aims to determine how pupil dilation reflects the amount of cognitive effort exerted at encoding and retrieval for correctly-recognized and updated information. Ten consenting, volunteer subjects from the University of Arizona completed a classic reconsolidation paradigm that spanned the course of one week, in which subjects were exposed to a total of 68 objects. The paradigm included a directed-forgetting manipulation, in which subjects were instructed to remember or forget certain objects. During encoding and retrieval, pupil diameter was measured using an SMI remote eye tracker. Of these ten subjects, five subjects met procedural protocol and had sufficient data present for analysis. One-way ANOVAs determined there was no significant difference at either encoding or retrieval between correctly-recognized and updated information, regardless of whether subjects were instructed to remember or forget an object at encoding.en
dc.typetexten
dc.typeElectronic Thesisen
thesis.degree.nameB.S.en
thesis.degree.levelbachelorsen
thesis.degree.disciplineHonors Collegeen
thesis.degree.disciplineNeuroscience & Cognitive Scienceen
thesis.degree.grantorUniversity of Arizonaen
dc.contributor.advisorGómez, Rebeccaen
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