[Homer-users] HbO vs HbR analyses

[Mehta, Ranjana]

Hi all,

We are using the TechEn system to obtain neural patterns in the motor cortex during knee extension. We see a marked increase in HbO during knee force production that could be because of:

  1.  Neural activity
  2.  Systemic hemodynamic changes due to knee extension work

We also see an increase in HbR (See dotted lines in attached figure). How can we infer neural activation from the two parameters and distinguish It from systemic influences.

[cid:2934173B-C6E3-49DA-B701-A44865EB3038]


Ranjana Mehta, Ph.D.
Assistant Professor | Environmental and Occupational Health
Director | NeuroErgonomics Lab
Co-Director | Texas A&M Ergonomics Center
Faculty | Texas A&M Institute for Neuroscience
Texas A&M University

106 SPH, College Station, TX 77843-1266
rmehta at tamu.edu | 979.845.3390
http://www.ranjanamehta.com/NeuroErgonomics

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.nmr.mgh.harvard.edu/pipermail/homer-users/attachments/20140930/1481d111/attachment.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 2934173B-C6E3-49DA-B701-A44865EB3038.jpg
Type: image/jpeg
Size: 13923 bytes
Desc: 2934173B-C6E3-49DA-B701-A44865EB3038.jpg
Url : http://mail.nmr.mgh.harvard.edu/pipermail/homer-users/attachments/20140930/1481d111/attachment.jpg