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THE RELATIONSHIP BETWEEN THE DEFAULT MODE RESTING STATE NEURAL NETWORK, RESPIRATORY SINUS ARRHYTHMIA, AND SELF-FOCUSED COGNITION: AN EMPIRICAL ANALYSIS

Egizio, Victoria (2013) THE RELATIONSHIP BETWEEN THE DEFAULT MODE RESTING STATE NEURAL NETWORK, RESPIRATORY SINUS ARRHYTHMIA, AND SELF-FOCUSED COGNITION: AN EMPIRICAL ANALYSIS. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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Abstract

Functional activity within the default mode resting state neural network (RSNN) and the resting respiratory sinus arrhythmia (RSA) may represent an integrated neural and peripheral cardiovascular index of the baseline, resting state in humans. Research also indicates that the integrated physiological baseline potentially formed by the default mode RSNN and resting RSA may be associated with self-focused cognition. We hypothesize that measures of default mode RSNN (namely functional connectivity strength), resting RSA, and self-focused cognition are, indeed, correlated and aim to demonstrate these relationships. Measures of default mode RSNN functional connectivity strength were derived using functional magnetic resonance imaging, measures of resting RSA were obtained via electrocardiogram, and self-focused cognition was assessed using survey methods. Although our results were largely unsupportive of our hypothesis, we present several possibly methodological confounds that may have impacted our findings, and we describe directions for future research.

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Details

Item Type: University of Pittsburgh ETD
Status: Unpublished
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Egizio, Victoriavbe1@pitt.eduVBE1
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairJennings, J Rjenningsjr@upmc.eduINJENN
Committee MemberManuck, Stevenmanuck@pitt.eduMANUCK
Committee MemberMarsland, Annamarsland@pitt.eduMARSLAND
Committee MemberGianaros, Petergianarospj@upmc.edu
Committee MemberErickson, Kirkkiericks@pitt.eduKIERICKS
Date: 28 September 2013
Date Type: Publication
Defense Date: 27 May 2011
Approval Date: 28 September 2013
Submission Date: 20 February 2012
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 135
Institution: University of Pittsburgh
Schools and Programs: Dietrich School of Arts and Sciences > Psychology
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: respiratory sinus arrhythmia, default mode network, brain, heart, psychology
Date Deposited: 28 Sep 2013 22:36
Last Modified: 19 Dec 2016 14:38
URI: http://d-scholarship.pitt.edu/id/eprint/11100

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