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David C Somers

2 papers in the library · publishing 2021

Papers

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Attention and Default Mode Network Assessments of Meditation Experience during Active Cognition and Rest.

Brain Sciences April 29, 2021 Kathryn J Devaney, Emily J Levin, Vaibhav Tripathi et al.

Meditation experience has previously been shown to improve performance on behavioral assessments of attention, but the neural bases of this improvement are unknown. Two prominent, strongly competing networks exist in the human cortex: a dorsal attention network, that is activated during focused attention, and a default mode network, that is suppressed during attentionally demanding tasks. Prior...

Default Mode and Dorsal Attention Network functional connectivity associated with alpha and beta peak frequency in individuals

Vaibhav Tripathi, David C Somers preprint

Abstract Alpha- and Beta-frequency oscillatory waves are evident in resting-state electro- and magneto-encephalography (EEG, MEG). Higher peak frequencies for Alpha and Beta are associated with greater cognitive health. Aging slows down the alpha and beta waves which are also affected by mental states, disorders such as ADHD, and sleep deprivation. Functional magnetic resonance imaging (fMRI)...