Deans' stroke musings: Working memory and neural oscillations: alpha–gamma versus theta

Changing stroke rehab and research worldwide now.Time is Brain! trillions and trillions of neurons that DIE each day because there are NO effective hyperacute therapies besides tPA(only 12% effective). I have 523 posts on hyperacute therapy, enough for researchers to spend decades proving them out. These are my personal ideas and blog on stroke rehabilitation and stroke research. Do not attempt any of these without checking with your medical provider. Unless you join me in agitating, when you need these therapies they won't be there.

What this blog is for:

My blog is not to help survivors recover, it is to have the 10 million yearly stroke survivors light fires underneath their doctors, stroke hospitals and stroke researchers to get stroke solved. 100% recovery. The stroke medical world is completely failing at that goal, they don't even have it as a goal. Shortly after getting out of the hospital and getting NO information on the process or protocols of stroke rehabilitation and recovery I started searching on the internet and found that no other survivor received useful information. This is an attempt to cover all stroke rehabilitation information that should be readily available to survivors so they can talk with informed knowledge to their medical staff. It lays out what needs to be done to get stroke survivors closer to 100% recovery. It's quite disgusting that this information is not available from every stroke association and doctors group.

Saturday, November 23, 2013

Working memory and neural oscillations: alpha–gamma versus theta–gamma codes for distinct WM information?

What is your doctor doing with this for your protocol to better your memory? ANYTHING AT ALL?
http://www.sciencedirect.com/science/article/pii/S1364661313002313

Frédéric Roux ¹,
Peter J. Uhlhaas ²^,³^,⁴^,

¹ BCBL, Basque Center for Cognition, Brain and Language, Paseo Mikeletegi 69, Donostia/San Sebastian, 20009, Spain
² Institute of Neuroscience and Psychology, University of Glasgow, 58 Hillhead Street, Glasgow, G12 8QB, UK
³ Department of Neurophysiology, Max-Planck Institute for Brain Research, Deutschordenstrasse 46, Frankfurt am Main, 60528, Germany
⁴ Ernst-Strüngmann Institute (ESI) for Neuroscience, in Cooperation with Max-Planck Society, Deutschordenstrasse 46, Frankfurt am Main, 60528, Germany

Highlights

•: We outline a framework for assigning distinct roles of theta/alpha/gamma-band oscillations to different WM-processes.
•: Gamma-band oscillations are actively involved in WM-maintenance.
•: Alpha-band activity underlies the inhibition of task-irrelevant activity.
•: Theta-band oscillations underlie the temporal organization of WM items.
•: Through cross-frequency coupling, alpha–gamma versus theta–gamma codes provide distinct mechanisms for different WM information.

Neural oscillations at different frequencies have recently been related to a wide range of basic and higher cognitive processes. One possible role of oscillatory activity is to assure the maintenance of information in working memory (WM). Here we review the possibility that rhythmic activity at theta, alpha, and gamma frequencies serve distinct functional roles during WM maintenance. Specifically, we propose that gamma-band oscillations are generically involved in the maintenance of WM information. By contrast, alpha-band activity reflects the active inhibition of task-irrelevant information, whereas theta-band oscillations underlie the organization of sequentially ordered WM items. Finally, we address the role of cross-frequency coupling (CFC) in enabling alpha–gamma and theta–gamma codes for distinct WM information.