Dynamic brain states underlying advanced concentrative absorption meditation: A 7-T fMRI-intensive case study

Area of Science:

• Neuroscience
• Cognitive Science
• Psychology

Background:

• Advanced meditation involves complex states of consciousness.
• Dynamic functional connectivity (DFC) using fMRI shows promise in identifying neural correlates of meditation.

Purpose of the Study:

• To investigate the brain states associated with advanced absorptive concentration meditation (ACAM-J) using DFC analysis.
• To explore the relationship between these brain states, meditation depth, and subjective experiences.

Main Methods:

• A case study utilizing 7-Tesla functional MRI (fMRI) and phenomenological reporting during 27 runs of ACAM-J.
• Analysis of dynamic functional connectivity (DFC) to identify distinct brain states during meditation and control conditions.

Main Results:

• Three distinct brain states were identified: DMN-anticorrelated, hyperconnected, and sparsely connected.
• The DMN-anticorrelated state was more prevalent during ACAM-J, increasing with deeper states.
• The hyperconnected state, linked to thalamocortical and somatomotor networks, decreased with meditation practice, correlating with broader attention and reduced sensory awareness.

Conclusions:

• Functional neuroimaging can objectively track the dynamics of brain states during advanced meditation.
• DFC analysis reveals distinct neural signatures for different stages and subjective experiences within advanced meditation practices.