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Related Experiment Video

Updated: Aug 8, 2025

Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication

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Do after "not to do": Deinhibition in cognitive control.

Jiwen Chen¹, Bihua Cao¹, Fuhong Li²

¹School of Psychology, Jiangxi Normal University, Nanchang, China.

Memory & Cognition

|February 28, 2023

Summary

Understanding how to remove inhibition (deinhibition) is crucial for adaptive behavior. This study reveals a "deinhibition cost" impacting reaction times and links deinhibition ability to cognitive flexibility.

Keywords:

Cognitive control Cognitive flexibility Deinhibition Inhibitory control Stop-signal task

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Area of Science:

Cognitive Psychology
Neuroscience

Background:

Inhibition control is widely studied, but the mechanisms of deinhibition remain unclear.
Deinhibition, the removal of inhibition, is essential for adaptive behavior in daily life.

Purpose of the Study:

To investigate the cognitive processes underlying deinhibition.
To quantify the cost associated with deinhibition and its relationship with other cognitive functions.

Main Methods:

A modified stop-signal task was used to measure reaction times after successful inhibition.
Stimulus onset asynchrony (SOA) was manipulated to isolate the deinhibition cost from signal preparation effects.

Main Results:

A significant "deinhibition cost" was observed, indicated by longer reaction times for repeated stimuli following successful inhibition.
Deinhibition ability demonstrated a correlation with inhibitory control and cognitive flexibility.

Conclusions:

Deinhibition represents a distinct subcomponent of cognitive control.
Understanding deinhibition ability is vital for explaining human adaptive behavior.