Related Experiment Video
Updated: Feb 15, 2026
07:47
Measuring Delay Discounting in Humans Using an Adjusting Amount Task
Published on: January 9, 2016
16.1K
Dysfunctional Prefrontal Function Is Associated with Impulsivity in People with Internet Gaming Disorder during a
Yifan Wang1,2, Yanbo Hu3, Jiaojing Xu4
1Department of Psychology, Zhejiang Normal University, Jinhua, China.
Frontiers in Psychiatry
|January 13, 2018
Summary
Individuals with Internet gaming disorder (IGD) exhibit deficits in decision-making and impulse control, showing a preference for immediate rewards over delayed gratification. This is linked to reduced prefrontal cortex activation.
Area of Science:
- Neuroscience
- Psychiatry
- Behavioral Science
Background:
- Internet gaming disorder (IGD) is a growing public health concern characterized by persistent online gaming despite negative consequences.
- Understanding the neurobiological and cognitive mechanisms underlying IGD is crucial for developing effective interventions.
Purpose of the Study:
- To investigate the intertemporal decision-making processes in individuals with IGD compared to healthy controls (HCs).
- To identify behavioral and neural correlates associated with IGD severity.
Main Methods:
- A delay discounting task was administered to 18 IGD participants and 21 HCs.
- Behavioral data (reaction time, discount rate k) and functional magnetic resonance imaging (fMRI) data were collected.
Main Results:
- IGD participants displayed a higher discount rate (k) than HCs, indicating a greater preference for immediate rewards.
- IGD severity positively correlated with reaction time differences and the discount rate (k).
- Reduced brain activation in the dorsolateral prefrontal cortex and bilateral inferior frontal gyrus was observed in IGD during delay trials.
Conclusions:
- IGD is associated with decision-making deficits and a tendency towards immediate satisfaction, stemming from impaired evaluation of delayed rewards and impulse inhibition.
- Dysfunctional prefrontal cortex activation may underlie these deficits, contributing to continued gaming despite adverse outcomes.
Related Concept Videos
01:13Impulse
21.7K
According to Newton’s second law of motion, the rate of change of the momentum of an object is the net external force acting on it. The total change in momentum between two timepoints thus depends on both the external force acting on it and the time over which it acts. Describing this mathematically, the total change of an object’s motion is proportional to the force vector and the time over which it is applied. This product is called impulse.
Additionally, it can be shown that the...
Additionally, it can be shown that the...
21.7K
01:17Impulse Response
780
The impulse response is the system's reaction to an input impulse. In an RC circuit, the voltage source is the input, and the capacitor's voltage is the output. The system's state and output response before and after input excitation are distinctly defined.
Kirchhoff's law forms an input signal equation, with the capacitor's current and voltage providing the output. Substituting the current and dividing by RC yields a differential equation. The output for an impulse input is the impulse...
Kirchhoff's law forms an input signal equation, with the capacitor's current and voltage providing the output. Substituting the current and dividing by RC yields a differential equation. The output for an impulse input is the impulse...
780
02:18Intrinsically Disordered Proteins
19.6K
Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
19.6K
01:15Principle of Impulse and Moment
537
When one considers a rigid body undergoing a plane motion, which is essentially a blend of translational and rotational movement, the application of Newton's second law gives the formula for the translational movement of such a body. If this equation is multiplied by a time interval, dt, and then integrated over the limits of integration, it results in an equation that embodies the principle of linear impulse.
537
00:49Impulse-Momentum Theorem
19.4K
The total change in the motion of an object is proportional to the total force vector acting on it and the time over which it acts. This product is called impulse, a vector quantity with the same direction as the total force acting on the object.
By writing Newton's second law of motion in terms of the momentum of an object and the external force acting on it, and simultaneously using the definition of the impulse vector, it can be shown that the total impulse on an object is equal to its...
By writing Newton's second law of motion in terms of the momentum of an object and the external force acting on it, and simultaneously using the definition of the impulse vector, it can be shown that the total impulse on an object is equal to its...
19.4K
01:24Social Foundations of Self I: Play and Game
234
The development of self in children is deeply rooted in social interactions, mainly through stages of play and structured games. These stages, outlined by sociologist George Herbert Mead, illustrate how children progressively learn to understand and adopt social roles, forming a cohesive sense of self.The Play Stage: Imitation and Simple Role-TakingIn the early years of childhood, the play stage is characterized by imitative behavior, where children engage in role-playing based on familiar...
234