The brain employs an alarm system to suppress intrusive thoughts

The mind employs an alarm system to suppress intrusive ideas

The brain employs an alarm system to suppress intrusive thoughts
A mannequin of how the ACC proactively and reactively alerts the necessity for thought suppression. Credit score: Crespo García et al., JNeurosci 2022

Overlook what you noticed: a mind area detects if you end up about to consider an undesirable reminiscence and alerts different areas to suppress it, in keeping with analysis just lately printed in JNeurosci.

Crespo García et al. measured members’ mind exercise with each EEG and fMRI whereas they accomplished a reminiscence process. The members memorized units of phrases (i.e., gate and practice) and had been requested to both recall a cue phrase’s pair (see gate, take into consideration practice) or solely concentrate on the cue phrase (see gate, solely take into consideration gate). Throughout proactive reminiscence suppression, exercise elevated within the anterior cingulate cortex (ACC), a mind area concerned in cognitive management, throughout the first 500 milliseconds of the duty.

The ACC relayed data to the dorsolateral prefrontal cortex (DLPFC), which then inhibited exercise within the hippocampus, a key area for reminiscence recall. The exercise ranges within the ACC and DLPFC remained low for the remainder of the trial, an indication of success—the reminiscence was stopped early sufficient so no extra suppression was wanted.

If the reminiscence was not suppressed in time, the ACC generated a reactive alarm, growing its exercise to sign to the DLPFC to cease the intrusion.



Extra data:
Anterior Cingulate Cortex Alerts the Have to Management Intrusive Ideas Throughout Motivated Forgetting, JNeurosci (2022). DOI: 10.1523/JNEUROSCI.1711-21.2022

Quotation:
The mind employs an alarm system to suppress intrusive ideas (2022, April 18)
retrieved 18 April 2022
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