Mapping Brain Activity in Response to Taste Stimulation

Faurion, Annick

doi:10.1002/9781118971758.ch35

Cited by 6 publications

(5 citation statements)

References 156 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this large sample (n=85) study, we demonstrate the effectiveness and validity of our procedure by showing significant clusters of activation within the same regions that have been reported throughout different meta-analyses on taste (Yeung et al, 2017) and olfaction (Seubert et al, 2013). More precisely, we found strong activations of: (i) the left middle insular cortex, which has consistently been identified as the human primary gustatory cortex (Buck and Bargmann, 2000;Small and Faurion, 2015), (ii) the postcentral/parietal operculum gyrus, which has been reported to be the primary cortex for oral somatosensory representation in humans (Boling et al, 2002) and, (iii) the anterior medial temporal lobes-including the hippocampal formation and the amygdaloid complex-that have also both been found to play a crucial role in food intake (Coppin, 2016;Davidson et al, 2009;Petrovich, 2011). Our results are also in agreement with an asymmetric model of taste perception (Iannilli and Gudziol, 2019), where right-handed populations tend to have stronger left dominance in the insula.…”

Section: Discussionsupporting

confidence: 77%

3D-Printed Pacifier-Shaped Mouthpiece for fMRI-Compatible Gustometers

Tord

Coppin

Pool

et al. 2021

eNeuro

View full text Add to dashboard Cite

The authors would like to thank Alain Hugon for his major contribution in the early stages of the design of the pacifier-shaped mouthpiece, Dr. Vanessa Sennwald for her insightful comments on the manuscript, Asli Erdemli for her useful comments on the data acquisition, and Lavinia Wuensch for her work on the data preprocessing. We also thank all the people from the Brain and Behavior Lab as well as from the Perception and Bioresponses Department of the Research and Development Division of Firmenich, SA for their precious advice and their theoretical and technical competence.

show abstract

Section: Discussionsupporting

confidence: 77%

3D-Printed Pacifier-Shaped Mouthpiece for fMRI-Compatible Gustometers

Tord

Coppin

Pool

et al. 2021

eNeuro

View full text Add to dashboard Cite

show abstract

“…We found clear activations of: (i) the middle insular cortex which was no surprise since this region has consistently been identified as the the human primary gustatory cortex (Buck and Bargmann, 2000;Small and Faurion, 2015), (ii) the parietal operculum/postcentral gyrus which has been reported to be the primary cortex for oral somatosensory representation in humans (Boling et al, 2002) and, (iii) the anterior medial temporal lobes -including the hippocampal formation and the amygdaloid complex-which have also both been revealed to play a crucial role in food intake (Coppin, 2016;Davidson et al, 2009;Petrovich, 2011).…”

Section: Discussionsupporting

confidence: 63%

3D printed pacifier-shaped mouthpiece for fMRI-compatible gustometers

Tord

Coppin

Mermoud

et al. 2021

Preprint

View full text Add to dashboard Cite

Gustometers have allowed the delivery of liquids in fMRI settings for decades and mouthpieces are a critical part of those taste delivery systems. Here we propose an innovative 3D printed mouthpiece inspired by children's pacifiers that allow participants to swallow while lying down in an MRI scanner. Our results validate the effectiveness of our method by showing significant clusters of activation in the insular and piriform cortex which are regions that have been consistently identified to compute taste processing. We used a large sample (n=85) to validate our method. Our mouthpiece fulfills several criteria guarantying a gustatory stimulus of quality, making the delivery more precise and reliable. Moreover, this new pacifier-shaped design is: simple and cheap to manufacture, hygienic, comfortable to keep in mouth, and flexible to diverse use cases. We hope that this new method will promote and facilitate the study of taste and flavor perception in the context of reward processing in affective neuroscience and thus help provide an integrative approach to the study of the emotional nature of rewards.

show abstract

“…Activation of TRCs leads to neurotransmitter and peptide release onto afferent fiber terminals of cranial nerves VII, IX and X (facial, glossopharyngeal and vagus, respectively) that, in turn convey information to the central nervous system [35] specifically to the nucleus tractus solitarius, in the brainstem, that then relays neural information to the thalamus and insula [8] . The area of the insula receiving taste sensory information is the primary gustatory cortex, while areas of the orbitofrontal cortex responding to taste stimulation, as well as to other flavor-related sensory information (e.g., texture, temperature, and odor), are sometimes defined as the secondary gustatory cortex [8] .…”

Section: Neurobiology Of Tastementioning

confidence: 99%

Sweet taste and obesity

Ribeiro¹,

Oliveira‐Maia²

2021

European Journal of Internal Medicine

View full text Add to dashboard Cite

For more than 50 years, there has been evidence for greater consumption of sweet-foods in overweight humans and animals, relative to those that have a normal weight. Furthermore, it has long been suggested that energy deficit resulting from dieting, while moving the individual from a higher weight set point, would result in heightened susceptibility to palatable tastants, namely to sweet tastants. This was the motivation behind the first studies comparing sweet taste perception between individuals with obesity and those of a normal weight. These studies, using direct measures of taste, have been characterized by significant methodological heterogeneity, contributing towards variability in results and conclusions. Nevertheless, some of these findings have been used to support the theory that patients with obesity have decreased taste perception, particularly for sweet tastants. A similar hypothesis has been proposed regarding evidence for reduced brain dopamine receptors in obesity and, in both cases, it is proposed that increased food consumption, and associated weight gain, result from the need to increase sensory and brain stimulation. However, the available literature is not conclusive on the association between obesity and reduced sweet taste perception, with both negative and contradictory findings in comparisons between individuals with obesity and normal weight control subjects, as well as within-subject comparisons before and after bariatric surgery. Nevertheless, following either Roux-en-Y gastric bypass or sleeve gastrectomy, there is evidence of changes in taste perception, particularly for reward-related measures of sweet tastants, that should be further tested and confirmed in large samples, using consensual methodology.

show abstract

Mapping Brain Activity in Response to Taste Stimulation

Cited by 6 publications

References 156 publications

3D-Printed Pacifier-Shaped Mouthpiece for fMRI-Compatible Gustometers

3D-Printed Pacifier-Shaped Mouthpiece for fMRI-Compatible Gustometers

3D printed pacifier-shaped mouthpiece for fMRI-compatible gustometers

Sweet taste and obesity

Contact Info

Product

Resources

About