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Intersubject representational similarity analysis reveals individual variations in affective experience when watching erotic movies

NeuroImage (Orlando, Fla.), 2020-08, Vol.216, p.116851-116851, Article 116851 [Peer Reviewed Journal]

2020 ;Copyright © 2020. Published by Elsevier Inc. ;Copyright Elsevier Limited Aug 1, 2020 ;ISSN: 1053-8119 ;EISSN: 1095-9572 ;DOI: 10.1016/j.neuroimage.2020.116851 ;PMID: 32294538

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Title:
Intersubject representational similarity analysis reveals individual variations in affective experience when watching erotic movies
Author: Chen, Pin-Hao A. ; Jolly, Eshin ; Cheong, Jin Hyun ; Chang, Luke J.
Subjects: Adolescent ; Adult ; Affect ; Affect - physiology ; Brain Mapping ; Brain research ; Cerebral Cortex - diagnostic imaging ; Cerebral Cortex - physiology ; College students ; Desire ; Emotions ; Erotica ; Eroticism ; Executive function ; fMRI ; Humans ; Individuality ; Inhibition, Psychological ; Intersubject correlation ; Intersubject representational similarity analysis ; Magnetic Resonance Imaging ; Male ; Motion Pictures ; Neostriatum ; Pattern Recognition, Visual - physiology ; Questionnaires ; Reinforcement ; Self control ; Sexual Behavior - physiology ; Variation ; Visual Perception - physiology ; Young Adult
Is Part Of: NeuroImage (Orlando, Fla.), 2020-08, Vol.216, p.116851-116851, Article 116851
Description: We spend much of our lives pursuing or avoiding affective experiences. However, surprisingly little is known about how these experiences are represented in the brain and if they are shared across individuals. Here, we explored variations in the construction of an affective experience during a naturalistic viewing paradigm based on subjective preferences in sociosexual desire and self-control using intersubject representational similarity analysis (IS-RSA). We found that when watching erotic movies, intersubject variations in sociosexual desire preferences of 26 heterosexual males were associated with similarly structured fluctuations in the cortico-striatal reward, default mode, and mentalizing networks. In contrast, variations in the self-control preferences were associated with shared dynamics in the fronto-parietal executive control and cingulo-insular salience networks. Importantly, these results were specific to the affective experience, as we did not observe any relationship with variation in preferences when individuals watched neutral movies. Moreover, these results appear to require multivariate representations of preferences as we did not observe any significant associations using single scalar summary scores. Our findings indicate that multidimensional variations in individual preferences can be used to uncover unique dimensions of an affective experience, and that IS-RSA can provide new insights into the neural processes underlying psychological experiences elicited through naturalistic experimental designs. •Individual variations in neural dynamics map on to variations in behavioral preferences.•Using a multidimensional space provides more precision to measure behavioral preferences compared to scalar summary scores.•Intersubject representational similarity analysis can be used to identify affective experiences.
Publisher: United States: Elsevier Inc
Language: English
Identifier: ISSN: 1053-8119
EISSN: 1095-9572
DOI: 10.1016/j.neuroimage.2020.116851
PMID: 32294538
Source: ProQuest One Psychology
MEDLINE
Alma/SFX Local Collection
ProQuest Central
DOAJ Directory of Open Access Journals

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