Neural correlates of top-down guidance of attention to food: an fMRI study

Abstract

We investigated the neural correlates of working memory guided attentional selection of food versus non-food stimuli in young women. Participants were thirty-two women, aged 20.6y (± 0.5) who were presented with a cue (food or non-food item) to hold in working memory. Subsequently, they had to search for a target in a 2-item display where target and distractor stimuli were each flanked by a picture of a food or a non-food item. The behavioural data showed that attention is particularly efficiently drawn to food stimuli when thinking about food. Using fMRI, we found that holding a non-food versus food stimulus in working memory was associated with increased activity in occipital gyrus, fusiform, inferior and superior frontal gyrus. In the posterior cingulum, retrosplenial cortex, a food item that re-appeared in the search array when it was held in memory led to a reduced response, compared to when it did not re-appear. The reverse effect was found for non-food stimuli. The extent of the reappearance effect correlated with the attentional capture of food as measured behaviourally. In conclusion, these results suggest that holding food in mind may bias attention because thinking of food facilitated neuronal responses to sensory input related to food stimuli and because holding food-related information in mind is less taxing on memory.

Publication DOI: https://doi.org/10.1016/j.physbeh.2020.113085
Divisions: College of Health & Life Sciences > School of Psychology
Additional Information: © 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords: Attention,Food,Memory,Neural correlates,fMRI,Experimental and Cognitive Psychology,Behavioral Neuroscience
Publication ISSN: 0031-9384
Full Text Link:
Related URLs: https://linking ... 031938420303991 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2020-10-15
Published Online Date: 2020-07-18
Accepted Date: 2020-07-16
Authors: Spetter, Maartje S.
Higgs, Suzanne
Dolmans, Dirk
Thomas, Jason M. (ORCID Profile 0000-0001-7013-8994)
Reniers, Renate L.e.p.
Rotshtein, Pia
Rutters, Femke

Export / Share Citation


Statistics

Additional statistics for this record