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Kabulska, Zuzanna ; Zhuang, Tonghe ; Lingnau, Angelika

Overlapping representations of observed actions and action‐related features

Kabulska, Zuzanna , Zhuang, Tonghe and Lingnau, Angelika (2024) Overlapping representations of observed actions and action‐related features. Human Brain Mapping 45 (3), e26605.

Date of publication of this fulltext: 28 Jun 2024 14:51
Article
DOI to cite this document: 10.5283/epub.58548


Abstract

The lateral occipitotemporal cortex (LOTC) has been shown to capture the representational structure of a smaller range of actions. In the current study, we carried out an fMRI experiment in which we presented human participants with images depicting 100 different actions and used representational similarity analysis (RSA) to determine which brain regions capture the semantic action space ...

The lateral occipitotemporal cortex (LOTC) has been shown to capture the representational structure of a smaller range of actions. In the current study, we carried out an fMRI experiment in which we presented human participants with images depicting 100 different actions and used representational similarity analysis (RSA) to determine which brain regions capture the semantic action space established using judgments of action similarity. Moreover, to determine the contribution of a wide range of action-related features to the neural representation of the semantic action space we constructed an action feature model on the basis of ratings of 44 different features. We found that the semantic action space model and the action feature model are best captured by overlapping activation patterns in bilateral LOTC and ventral occipitotemporal cortex (VOTC). An RSA on eight dimensions resulting from principal component analysis carried out on the action feature model revealed partly overlapping representations within bilateral LOTC, VOTC, and the parietal lobe. Our results suggest spatially overlapping representations of the semantic action space of a wide range of actions and the corresponding action-related features. Together, our results add to our understanding of the kind of representations along the LOTC that support action understanding.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitleHuman Brain Mapping
Publisher:Wiley
Open Access Type:DEAL (Wiley Gold)
Volume:45
Number of Issue or Book Chapter:3
Page Range:e26605
Date21 February 2024
InstitutionsHuman Sciences > Institut für Psychologie > Lehrstuhl für Psychologie IV (Entwicklungs- und Kognitionspsychologie) - Prof. Dr. Karl-Heinz Bäuml
Human Sciences > Institut für Psychologie > Lehrstuhl für Cognitive Neuroscience – Prof. Dr. Angelika Lingnau
Identification Number
ValueType
10.1002/hbm.26605DOI
KeywordsLOTC, multi-dimensional action space, representational space
Dewey Decimal Classification100 Philosophy & psychology > 150 Psychology
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-585483
Item ID58548

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