TY - JOUR
T1 - Supersize my brain
T2 - A cross-sectional voxel-based morphometry study on the association between self-reported dietary restraint and regional grey matter volumes
AU - van der Laan, Laura N.
AU - Charbonnier, Lisette
AU - Griffioen-Roose, Sanne
AU - Kroese, Floor M.
AU - van Rijn, Inge
AU - Smeets, Paul A M
PY - 2016/5/1
Y1 - 2016/5/1
N2 - Restrained eaters do not eat less than their unrestrained counterparts. Proposed underlying mechanisms are that restrained eaters are more reward sensitive and that they have worse inhibitory control. Although fMRI studies assessed these mechanisms, it is unknown how brain anatomy relates to dietary restraint. Voxel-based morphometry was performed on anatomical scans from 155 normal-weight females to investigate how regional grey matter volume correlates with restraint. A positive correlation was found in several areas, including the parahippocampal gyrus, hippocampus, striatum and the amygdala (bilaterally, p <0.05, corrected). A negative correlation was found in several areas, including the inferior frontal gyrus, superior frontal gyrus, supplementary motor area, middle cingulate cortex and precentral gyrus (p <0.05, corrected). That higher restraint relates to higher grey matter volume in reward-related areas and lower grey matter volume in regions involved in inhibition, provides a neuroanatomical underpinning of theories relating restraint to increased reward sensitivity and reduced inhibitory capacity.
AB - Restrained eaters do not eat less than their unrestrained counterparts. Proposed underlying mechanisms are that restrained eaters are more reward sensitive and that they have worse inhibitory control. Although fMRI studies assessed these mechanisms, it is unknown how brain anatomy relates to dietary restraint. Voxel-based morphometry was performed on anatomical scans from 155 normal-weight females to investigate how regional grey matter volume correlates with restraint. A positive correlation was found in several areas, including the parahippocampal gyrus, hippocampus, striatum and the amygdala (bilaterally, p <0.05, corrected). A negative correlation was found in several areas, including the inferior frontal gyrus, superior frontal gyrus, supplementary motor area, middle cingulate cortex and precentral gyrus (p <0.05, corrected). That higher restraint relates to higher grey matter volume in reward-related areas and lower grey matter volume in regions involved in inhibition, provides a neuroanatomical underpinning of theories relating restraint to increased reward sensitivity and reduced inhibitory capacity.
KW - Dietary restraint
KW - Grey matter volume
KW - Voxel-based morphometry
UR - http://www.scopus.com/inward/record.url?scp=84962229389&partnerID=8YFLogxK
U2 - 10.1016/j.biopsycho.2016.03.007
DO - 10.1016/j.biopsycho.2016.03.007
M3 - Article
C2 - 26995784
AN - SCOPUS:84962229389
SN - 0301-0511
VL - 117
SP - 108
EP - 116
JO - Biological Psychology
JF - Biological Psychology
ER -