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Related Experiment Video

Updated: Dec 12, 2025

Design and Implementation of an fMRI Study Examining Thought Suppression in Young Women with, and At-risk, for Depression

Design and Implementation of an fMRI Study Examining Thought Suppression in Young Women with, and At-risk, for Depression

Published on: May 19, 2015

Decoding Nonconscious Thought Representations during Successful Thought Suppression.

Roger Koenig-Robert^1,2, Joel Pearson¹

¹University of New South Wales.

Journal of Cognitive Neuroscience

|August 9, 2020

Summary

This summary is machine-generated.

Thought suppression fails because suppressed thoughts remain in visual areas, hidden from awareness. This neural persistence explains why controlling thoughts is difficult and informs treatments for mental health disorders.

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Area of Science:

Cognitive Neuroscience
Neuroimaging

Background:

Thought control is crucial for mental well-being, yet thought suppression often fails.
The neural basis of suppressed thoughts remains poorly understood.

Purpose of the Study:

To investigate brain mechanisms underlying thought control and the fate of neural representations of suppressed thoughts.
To determine if suppressed thoughts are truly absent from neural activity.

Main Methods:

Functional magnetic resonance imaging (fMRI) was used to monitor brain activity.
Multivoxel pattern analysis (MVPA) tracked neural representations of visualized and suppressed thoughts.
Participants visualized or suppressed thoughts of specific objects.

Main Results:

The content of successfully suppressed thoughts was decodable in visual areas, indicating their neural persistence.
Thought generation correlated with left hemisphere activity, while suppression engaged the right hemisphere.
Successful suppression linked to executive areas; failure linked to visual and memory areas.

Conclusions:

Neural representations of suppressed thoughts persist unconsciously, explaining suppression ineffectiveness.
These findings offer insights into unconscious thought production and potential treatments for mental disorders.