Incentives and voluntary stopping: The intentional hand task

Area of Science:

• Cognitive Neuroscience
• Behavioral Psychology

Background:

• Intentional inhibition, the endogenous decision to cease an action, is crucial for self-control.
• Existing research often focuses on reactive inhibition, neglecting the ecological validity of intentional stopping.

Purpose of the Study:

• To differentiate response times for intentional versus instructed stopping.
• To investigate the impact of reward incentives on intentional inhibition and approach behaviors.

Main Methods:

• Development of the Intentional Hand Task with Go, Stop, and Choice trials.
• Measurement of response times for initiated movements and intentional/instructed stops.
• Manipulation of reward incentives (No, Low, High) across trial types.

Main Results:

• Intentionally stopping an action took significantly longer than instructed stopping.
• Reward incentives enhanced approach behaviors (increased Go accuracy, faster response times).
• Reward incentives significantly reduced the frequency of intentional stop choices.

Conclusions:

• Intentional inhibition involves an additional decisional process compared to reactive inhibition.
• Monetary incentives may promote approach behaviors over inhibitory control, relevant to addiction.
• Findings have implications for understanding cue-related relapse in addiction disorders.