Related Experiment Video
Updated: Jul 1, 2026
09:48
Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention
Published on: September 11, 2017
9.9K
Decoding the impact of negative physical self-perception on inhibitory control ability from theta and beta rhythms
Junwei Lian1, Jiaqi Guo1, Xu Dai1
1Faculty of Psychology, Southwest University, Chongqing, China.
Cerebral Cortex (New York, N.Y. : 1991)
|March 19, 2025
Summary
Negative physical self-perception influences eating behaviors and brain activity, impacting inhibitory control. This study reveals how theta and beta power, analyzed with multivariate pattern analysis, differentiate control abilities across weight and self-perception groups.
Area of Science:
- Neuroscience
- Psychology
- Behavioral Science
Background:
- Obesity is linked to differences in inhibitory control.
- Negative physical self-perception may influence eating behaviors and attentional bias in normal-weight individuals.
- Existing research often overlooks the role of self-perception in inhibitory control differences.
Purpose of the Study:
- To investigate inhibitory control differences between obese, normal-weight, and normal-weight individuals with high negative physical self-perception.
- To examine the neural correlates (theta and beta power) of inhibitory control in these groups.
- To assess the utility of multivariate pattern analysis (MVPA) in distinguishing inhibitory control abilities.
Main Methods:
- Collected behavioral and electroencephalography (EEG) data during a novel inhibitory control task.
- Compared inhibitory control, restraint eating behavior, and EEG power (theta and beta) across three groups.
- Utilized MVPA to decode task conditions (go/no-go) and stimuli (high- vs. low-calorie food) using EEG data.
Main Results:
- Individuals with high negative physical self-perception showed greater restraint eating behavior.
- Significant differences in theta and beta power were observed between groups.
- Theta and beta power differentiated between go/no-go conditions and food stimuli, with MVPA successfully decoding task conditions across groups.
Conclusions:
- Negative physical self-perception is a crucial factor influencing inhibitory control and eating behaviors.
- Theta and beta power, analyzed with MVPA, can reliably distinguish inhibitory control abilities across different groups.
- Future assessments of inhibitory control should consider the impact of negative physical self-perception, particularly in normal-weight individuals.
Keywords:
inhibitory controlmultivariate pattern analysisnegative physical selfobesitytime–frequency analysisMore Related Videos
Related Concept Videos
01:01Feedback Loops
In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.
01:52Regression Toward the Mean
Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when researchers try to extrapolate results...
01:16What is Homeostasis?
Maintaining homeostasis requires that the body continuously maintain its internal conditions. Each physiological condition has a particular set point, from body temperature to blood pressure to levels of certain nutrients. A set point is the physiological value around which the normal range fluctuates. A normal range is a restricted set of values that is optimally healthful and stable. For example, the set point for normal human body temperature is approximately 37°C (98.6°F). Physiological...
01:27Adrenergic Antagonists: Pharmacological Actions of β-Receptor Blockers
β-receptor blockers significantly impact the cardiovascular system by counteracting catecholamine-induced sympathetic responses. These medications decrease heart rate, contractility, and cardiac output, potentially leading to cardiac depression, life-threatening bradycardia, and death. Therapeutically, β-blockers function as mild antihypertensives and are utilized in treating angina pectoris and cardiac arrhythmias. However, nonselective β-blockers inhibit β2-receptors in bronchial smooth...
01:17Antihypertensive Drugs: Action of β1 Blockers
β1-receptors are primarily located in the heart and kidneys. In cardiac myocytes, these receptors interact with neurotransmitters released by the sympathetic nervous system during heightened activity or danger. As a result, β1-receptors get activated, initiating a series of biochemical processes. Excessive activation of beta receptors due to chronic stress can abnormally increase heart rate and contractility, resulting in high blood pressure or hypertension. To counteract this, β1-blockers...
01:25Self-Regulation
Self-regulation, also known as self-control, encompasses a range of cognitive and behavioral processes that allow individuals to adjust their internal states and outward actions to align with socially acceptable norms and long-term goals. It plays a fundamental role in adaptive functioning, from resisting impulsive behaviors to persisting through challenging tasks. While its benefits are widely recognized, self-regulation is not limitless. Muraven and Baumeister's theory posits that...