Sleep restriction increases the neuronal response to unhealthy food in normal-weight individuals.

ABSTRACT:

Context

Sleep restriction alters responses to food. However, the underlying neural mechanisms for this effect are not well understood.

Objective

The purpose of this study was to determine whether there is a neural system that is preferentially activated in response to unhealthy compared with healthy foods.

Participants

Twenty-five normal-weight individuals, who normally slept 7-9 h per night, completed both phases of this randomized controlled study.

Intervention

Each participant was tested after a period of five nights of either 4 or 9 h in bed. Functional magnetic resonance imaging (fMRI) was performed in the fasted state, presenting healthy and unhealthy food stimuli and objects in a block design. Neuronal responses to unhealthy, relative to healthy food sti

SUBMITTER: St-Onge MP 

PROVIDER: S-EPMC3883872 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature