publication . Article . 2008

Deprivation selectively modulates brain potentials to food pictures.

Alfons O. Hamm; Almut I. Weike; Harald T. Schupp; Jessica Stockburger;
Open Access
  • Published: 01 Jan 2008 Journal: Behavioral Neuroscience, volume 122, pages 936-942 (issn: 0735-7044, eissn: 1939-0084, Copyright policy)
  • Publisher: American Psychological Association (APA)
  • Country: Germany
Abstract
Event-related brain potentials (ERPs) were used to examine whether the processing of food pictures is selectively modulated by changes in the motivational state of the observer. Sixteen healthy male volunteers were tested twice 1 week apart, either after 24 hr of food deprivation or after normal food intake. ERPs were measured while participants viewed appetitive food pictures as well as standard emotional and neutral control pictures. Results show that the ERPs to food pictures in a hungry, rather than satiated, state were associated with enlarged positive potentials over posterior sensor sites in a time window of 170-310 ms poststimulus. Minimum-norm analysis ...
Subjects
Medical Subject Headings: digestive, oral, and skin physiology
free text keywords: Behavioral Neuroscience, human eating behavior, visual attention, ERPs, motivation, Motivation [gnd], Aufmerksamkeit [gnd], Ereigniskorreliertes Potenzial [gnd], Psychologie [gnd], Gefühl [gnd], Developmental psychology, Time windows, Food intake, Food deprivation, Perception, media_common.quotation_subject, media_common, Privation, medicine.disease, medicine, Psychophysiology, Audiology, medicine.medical_specialty, Stimulus Salience, Psychology, Electrophysiology, ddc:150
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