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Timing and Consequences on Behavior

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In operant conditioning, the timing of reinforcement is crucial. For animals like rats and cats, immediate reinforcement (within a few seconds) is much more effective than delayed reinforcement. For example, a food reward for a rat needs to follow within 30 seconds of pressing a bar to be effective.
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The Joint Effect of Social Comparison and Social Distance on Evaluation of Intertemporal Choice Outcomes in Event-related Potential Studies

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Expectations of immediate and delayed reward differentially affect cognitive task performance.

Yachao Rong¹, Ningxuan Chen¹, Jiarui Dong¹

¹Beijing Key Laboratory of Learning and Cognition and School of Psychology, Capital Normal University, Beijing, 100048, China.

|August 22, 2022

Summary

This summary is machine-generated.

Anticipating immediate rewards boosts neural activity and performance more than delayed or no rewards. Depression can impact how neural responses to rewards affect task performance.

Keywords:

Delayed reward Event-related-potential Event-related-spectral-perturbation Reward expectation Task performance

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Area of Science:

Neuroscience
Cognitive Psychology
Decision Science

Background:

Understanding how reward anticipation influences cognitive control is crucial.
Delay discounting, the devaluation of rewards with time, affects decision-making.
Neural mechanisms underlying reward anticipation and its impact on performance require further elucidation.

Purpose of the Study:

To investigate the neural mechanisms of anticipating and receiving immediate versus delayed rewards.
To examine how pursuing monetary rewards affects cognitive task performance.
To explore the role of depression in moderating reward anticipation effects on performance.

Main Methods:

Modified Monetary Incentive Delay (MID) task.
Measurement of behavioral responses (speed, accuracy).
Analysis of neural activity using event-related potentials (ERPs) and event-related spectral perturbations (ERSPs).
Linear mixed-effects modeling and exploratory analyses including depression assessment.

Main Results:

Immediate rewards elicited the fastest behavioral responses and strongest neural activity (cue-P3, cue-delta).
Delayed rewards showed intermediate effects, while no-reward conditions yielded the slowest responses and weakest neural activity.
Depression moderated the relationship between neural activity and performance in the delayed reward condition.

Conclusions:

Differential value representations, influenced by delay discounting, directly impact neural reward processing and effort allocation.
Reward anticipation significantly modulates cognitive task performance, aligning with the expected value of control theory.
Findings highlight the interplay between reward timing, neural processing, and cognitive control, with implications for understanding conditions like depression.