February 25, 2021

Causal Evidence for the Role of Neuronal Oscillations in Top–Down and Bottom–Up Attention

This paper provides further evidence for different roles for beta vs gamma oscillations in attention. The authors used TMS to provide evidence that beta stimulation affects top-down attention whereas gamma …

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I have more to say: Neuroscientists Debate A Simple Question. NPR piece on working memory.

Check out this National Public Radio piece on the debate about our new model of working memory:Neuroscientists Debate A Simple Question: How Does The Brain Store A Phone Number?    …

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Alpha Oscillations Modulate Preparatory Activity in Marmoset Area 8Ad

More evidence that cognitive control stems from low-frequency rhythms in deep-layer cortex inhibiting superficial layer cortex. Johnston, K., Ma, L., Schaeffer, L., & Everling, S. (2019). Alpha Oscillations Modulate Preparatory …

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New paper accepted: Altering alpha-frequency brain oscillations with rapid analog feedback-driven neurostimulation.

Widge AS, Boggess M, Rockhill AP, Mullen A, Sheopory S, Loonis R, Freeman DK, Miller EK  (in press)  Altering alpha-frequency brain oscillations with rapid analog feedback-driven neurostimulation. PLOS ONE Stayed …

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New paper: Deep brain stimulation of the internal capsule enhances human cognitive control and prefrontal cortex function

Widge, A.S.,  Zorowitz, S., Basu, I.  Paulk, A., Cash, S., Eskandar, E., Deckersbach, T., Miller, E.K., and Dougherty, D.  (2019) Deep brain stimulation of the internal capsule enhances human cognitive …

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A “controversy” about whether brain waves play a functional role.

An article in Scientific American discusses the debate about whether brain waves have a function or whether they are an epiphenomenon:Do Brain Waves Conduct Neural Activity Like a Symphony?    There are …

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New Paper: Altering alpha-frequency brain oscillations with rapid analog feedback-driven neurostimulation

Widge, A.S., Boggess, M., Rockhill, A.P., Mullen, A., Sheopory, S., Loonis, R. Freeman, D.K., and Miller, E.K.  (2018)  Altering alpha-frequency brain oscillations with rapid analog feedback-driven neurostimulation. PLOS ONE Abstract …

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Circuit mechanisms for the maintenance and manipulation of information in working memory

Persistent activity is problematic as a working memory (WM) mechanism. When WMs are in a persistent active state, they are easy to disrupt by distractions, additional inputs etc. Using modeling, …

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Gamma Synchronization between V1 and V4 Improves Behavioral Performance

V1-V4 gamma coherence before stimulus change predicts reaction time to detect the change while deviations from the phase relation increases reaction times.  Nice. Gamma Synchronization between V1 and V4 Improves Behavioral …

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Causal Evidence for the Role of Neuronal Oscillations in Top–Down and Bottom–Up Attention

This paper provides further evidence for different roles for beta vs gamma oscillations in attention. The authors used TMS to provide evidence that beta stimulation affects top-down attention whereas gamma …

Read More
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