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Related Concept Videos

Regulation of Food Intake01:30

Regulation of Food Intake

329
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
329

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High-Calorie Food-Cues Impair Conflict Control: EEG Evidence from a Food-Related Stroop Task.

Yong Liu1,2, Jia Zhao1,2, Yizhou Zhou3

  • 1Key Laboratory of Cognition and Personality (Ministry of Education), School of Psychology, Southwest University, Chongqing 400715, China.

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|November 11, 2022
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Summary

Excessive intake of high-calorie foods impairs cognitive control, leading to slower reactions and reduced accuracy when processing food cues. This suggests high-calorie foods negatively impact eating behavior and weight management.

Keywords:
N2 and P3conflict controlfood-related Stroop taskhigh-calorie foodstheta power

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Nutritional Science

Background:

  • Long-term excessive intake of high-calorie foods is linked to cognitive impairments, overweight, and obesity.
  • Understanding the neural mechanisms underlying food-related conflict control is crucial for addressing eating behavior and weight management.

Purpose of the Study:

  • To investigate the behavioral and neurological effects of high-calorie foods on food-related conflict control ability.
  • To explore the neural correlates associated with processing high-calorie versus low-calorie food stimuli.

Main Methods:

  • Utilized a food-related Stroop task with 61 participants to assess conflict control.
  • Employed event-related potentials (ERPs) and time-frequency analysis to examine neural activity.
  • Participants responded to food images while ignoring calorie information.

Main Results:

  • Participants showed slower reaction times and lower accuracy for high-calorie food stimuli compared to low-calorie stimuli.
  • Event-related potentials (ERPs) revealed reduced N2 amplitudes when responding to high-calorie food cues.
  • Time-frequency analysis indicated significantly lower theta power for high-calorie food stimuli than for low-calorie stimuli.

Conclusions:

  • High-calorie foods demonstrably impair food-related conflict control abilities.
  • Findings provide novel insights into the neural processing of conflicting food cues, relevant for eating behavior and weight control strategies.
  • This research contributes to understanding the neurological basis of dietary choices and their impact on cognitive function.