Universität zu Köln

Knauth, Kilian ORCID: 0000-0002-4002-4651 (2024). Emotional Cue Effects on Choice Impulsivity. PhD thesis, Universität zu Köln.

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Abstract

This dissertation project investigated neurophysiological mechanisms contributing to emotional cue effects on temporal discounting (TD). Due to its high intraindividual stability and its close association with a range of maladaptive behaviors and clinical conditions (including addiction) TD has been considered a transdiagnostic marker and potential (future) indicator of treatment response. Improving our understanding of how TD is affected by external factors therefore represents a both vital andextensive endeavor. In a psychophysiological and a brain imaging study, it was shown that affective cues lead to a strong increase in neurophysiological arousal indexed by pupil dilation, heart rate frequencies, and electrodermal activity as well as mesolimbic BOLD activity. However, intertemporal decision-making behavior could not be altered by the visual stimuli. There was also no behavioral influence of physical arousal which was thoroughly tested via extensive computational modelling. The impulsivity-enhancing effects of so-called drug cues often oberservable in addiction disorders seems to be moderated by a different addiction-specific mechanism.

Item Type:	Thesis (PhD thesis)
Creators:	Creators Email ORCID ORCID Put Code Knauth, Kilian UNSPECIFIED https://orcid.org/0000-0002-4002-4651 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-732119
Date:	9 July 2024
Place of Publication:	Köln
Language:	English
Faculty:	Faculty of Human Sciences
Divisions:	Faculty of Human Sciences > Department Psychologie
Subjects:	Psychology
Uncontrolled Keywords:	Keywords Language Choice impulsivity UNSPECIFIED Discounting UNSPECIFIED Imaging UNSPECIFIED psychophysiology UNSPECIFIED decision-making UNSPECIFIED computational modelling UNSPECIFIED biological psychologie UNSPECIFIED
Date of oral exam:	20 June 2024
Referee:	Name Academic Title Peters, Jan Prof. Dr. Vossel, Simone Prof. Dr.
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/73211