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Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network

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Modulating the default mode network using hypnosis.

Quinton Deeley¹, David A Oakley, Brian Toone

¹Kings College London, Institute of Psychiatry, United Kingdom. q.deeley@iop.kcl.ac.uk

The International Journal of Clinical and Experimental Hypnosis

|March 27, 2012

Summary

This summary is machine-generated.

Hypnosis alters brain activity by reducing default mode network (DMN) function and enhancing attentional systems. This neuroimaging study reveals distinct neural patterns for hypnosis versus spontaneous thought.

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Area of Science:

Neuroscience
Cognitive Psychology
Brain Imaging

Background:

The neural basis of hypnosis is debated.
A hypothesis links hypnosis to alterations in the default mode network (DMN).
The DMN is active during resting states and linked to self-awareness and memory.

Purpose of the Study:

To investigate the neural correlates of hypnotic states.
To examine how hypnosis affects the default mode network (DMN).
To differentiate the neural and subjective experiences of hypnosis from spontaneous thought.

Main Methods:

Utilized hypnosis to alter resting brain states.
Employed brain imaging (fMRI) and subjective measures.
Compared brain activity during hypnotic absorption versus passive visual stimulation.

Main Results:

Hypnotic absorption showed reduced DMN activity.
Increased activity was observed in prefrontal attentional systems during hypnosis.
Hypnosis and spontaneous resting thought exhibited distinct neural and subjective profiles.

Conclusions:

Hypnosis is associated with specific alterations in brain network activity.
Findings differentiate hypnotic states from spontaneous mental processes.
Provides insights into the neural underpinnings of consciousness and attention.