Journal article
The relation of hedonic hunger and restrained eating to lateralized frontal activation
Physiology & behavior, v 163, pp 64-69
01 Sep 2016
PMID: 27133731
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Asymmetrical alpha activation in the prefrontal cortex (frontal asymmetry) in electroencephalography (EEG) has been related to eating behavior. Prior studies linked dietary restraint with right frontal asymmetry [1] and disinhibition with left frontal asymmetry [2]. The current study simultaneously assessed restrained eating and hedonic hunger (drive for food reward in the absence of hunger) in relation to frontal asymmetry. Resting-state EEG and measures of restrained eating (Revised Restraint Scale; RRS) and hedonic hunger (Power of Food Scale; PFS) were assessed in 61 non-obese adults. Individually, hedonic hunger predicted left asymmetry. However, PFS and RRS were correlated (r=0.48, p<0.05) and there was a significant interaction between PFS and RRS on frontal asymmetry, p<0.01. Results indicated that those high in hedonic hunger exhibited left asymmetry irrespective of RRS scores; among those low in PFS, only those high in RRS showed right asymmetry. Results were consistent with literature linking avoidant behaviors (restraint) with right-frontal asymmetry and approach behaviors (binge eating) with left-frontal asymmetry. It appears that a strong drive toward palatable foods predominates at a neural level even when restraint is high. Findings suggest that lateralized frontal activity is an indicator of motivation both to consume and to avoid consuming highly palatable foods.
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Details
- Title
- The relation of hedonic hunger and restrained eating to lateralized frontal activation
- Creators
- S R Winter - Drexel University, Philadelphia, PA, United States. Electronic address: Samantha.r.winter@drexel.eduE H Feig - Drexel UniversityJ Kounios - Drexel UniversityB Erickson - Drexel UniversityS Berkowitz - Drexel UniversityM R Lowe - Drexel University
- Publication Details
- Physiology & behavior, v 163, pp 64-69
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Psychological and Brain Sciences (Psychology)
- Web of Science ID
- WOS:000380597400009
- Scopus ID
- 2-s2.0-84966412881
- Other Identifier
- 991019168258204721
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- Web of Science research areas
- Behavioral Sciences
- Psychology, Biological