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Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
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Food stimuli decrease activation in regions of the prefrontal cortex related to executive function: an fNIRS study.

Chen Cheng1,2, Yong Yang3

  • 1Institute for Brain Sciences Research, Tennis College, Wuhan Sports University, Wuhan, 430079, China.

Eating and Weight Disorders : EWD
|November 20, 2023
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Summary
This summary is machine-generated.

Food stimuli reduce prefrontal cortex activation, impacting executive functions in healthy adults. Overweight/obese individuals show less suppression of desired stimuli responses compared to controls.

Keywords:
Executive functionFood stimuliObesityPrefrontal cortexfNIRS

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Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • Overweight and obesity are linked to executive function deficits, including impaired inhibitory control.
  • The neural underpinnings of these executive function impairments, particularly involving prefrontal cortex (PFC) activity, require further elucidation.

Purpose of the Study:

  • To investigate the neural mechanisms of executive function in overweight/obese individuals.
  • To examine how exposure to food stimuli affects PFC activation and executive function performance.
  • To compare brain activity and cognitive task performance between healthy and overweight/obese adults.

Main Methods:

  • Utilized functional near-infrared spectroscopy (fNIRS) to measure prefrontal cortex activation.
  • Exposed participants to food and neutral video stimuli.
  • Assessed executive function using a Stroop task before and after stimulus exposure.
  • Compared neural and behavioral responses in healthy young adults (Experiment 1) and overweight/obese versus healthy young adults (Experiment 2).

Main Results:

  • Food stimuli significantly decreased activation in PFC regions associated with executive function in healthy adults.
  • Overweight/obese individuals exhibited less pronounced suppression of responses to desired stimuli compared to healthy controls.
  • Executive function performance was modulated by food stimuli exposure.

Conclusions:

  • Food cues can attenuate prefrontal cortex activity crucial for executive functions.
  • Individuals with overweight/obesity may have altered neural responses to desirable stimuli, potentially impacting self-regulation.
  • Findings contribute to understanding the interplay between weight status, motivation, and cognitive control.