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Prandial States Modify the Reactivity of the Gustatory Cortex Using Gustatory Evoked Potentials in Humans

Overview of attention for article published in Frontiers in Neuroscience, January 2016
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Title
Prandial States Modify the Reactivity of the Gustatory Cortex Using Gustatory Evoked Potentials in Humans
Published in
Frontiers in Neuroscience, January 2016
DOI 10.3389/fnins.2015.00490
Pubmed ID
Authors

Agnès Jacquin-Piques, Stéphanie Gaudillat, Thomas Mouillot, Vincent Gigot, Sophie Meillon, Corinne Leloup, Luc Penicaud, Laurent Brondel

Abstract

Previous functional Magnetic Resonance Imaging studies evaluated the role of satiety on cortical taste area activity and highlighted decreased activation in the orbito-frontal cortex when food was eaten until satiation. The modulation of orbito-frontal neurons (secondary taste area) by ad libitum food intake has been associated with the pleasantness of the food's flavor. The insula and frontal operculum (primary taste area) are also involved in reward processing. The aim was to compare human gustatory evoked potentials (GEP) recorded in the primary and secondary gustatory cortices in a fasted state with those after food intake. Fifteen healthy volunteers were enrolled in this observational study. In each of two sessions, two GEP recordings were performed (at 11:00 am and 1:30 pm) in response to sucrose gustatory stimulation, and a sucrose-gustatory threshold was determined. During one session, a standard lunch was provided between the two GEP recordings. During the other session, subjects had nothing to eat. Hunger sensation, wanting, liking, and the perception of the solution's intensity were evaluated with visual analog scales. GEP latencies measured in the Pz (p < 0.001), Cz (p < 0.01), Fz (p < 0.001) recordings (primary taste area) were longer after lunch than in the pre-prandial condition. Fp1 and Fp2 latencies (secondary taste area) tended to be longer after lunch, but the difference was not significant. No difference was observed for the sucrose-gustatory threshold regardless of the session and time. Modifications in the primary taste area activity during the post-prandial period occurred regardless of the nature of the food eaten and could represent the activity of the frontal operculum and insula, which was recently shown to be modulated by gut signals (GLP-1, CCK, ghrelin, or insulin) through vagal afferent neurons or metabolic changes of the internal milieu after nutrient absorption. This trial was registered at clinicalstrials.gov as NCT02472444.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 43 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 43 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 7 16%
Student > Master 6 14%
Student > Ph. D. Student 5 12%
Student > Bachelor 5 12%
Student > Doctoral Student 3 7%
Other 6 14%
Unknown 11 26%
Readers by discipline Count As %
Psychology 5 12%
Agricultural and Biological Sciences 5 12%
Engineering 4 9%
Neuroscience 4 9%
Medicine and Dentistry 3 7%
Other 6 14%
Unknown 16 37%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 January 2016.
All research outputs
#22,759,452
of 25,373,627 outputs
Outputs from Frontiers in Neuroscience
#10,135
of 11,538 outputs
Outputs of similar age
#341,946
of 400,002 outputs
Outputs of similar age from Frontiers in Neuroscience
#115
of 133 outputs
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