High frequency oscillations in brain hemodynamic response

Ata Akin; Hayrunnisa Bolay M.D.

doi:10.1117/12.728233

12 July 2007 High frequency oscillations in brain hemodynamic response

Ata Akin, Hayrunnisa Bolay M.D.

Proceedings Volume 6629, Diffuse Optical Imaging of Tissue; 66291F (2007) https://doi.org/10.1117/12.728233
Event: European Conferences on Biomedical Optics, 2007, Munich, Germany

Abstract

Tight autoregulation of vessel tone guarantees proper delivery of nutrients to the tissues. This regulation is maintained at a more delicate level in the brain since any decrease in the supply of glucose and oxygen to neuronal tissues might lead to unrecoverable injury. Functional near infrared spectroscopy has been proposed as a new tool to monitor the cerebrovascular response during cognitive activity. We have observed that during a Stroop task three distinct oscillatory patterns govern the control of the cerebrovascular reactivity: very low frequency (0.02-0.05 Hz), low frequency (0.08-0.12 Hz) and high frequency (0.12-0.18 Hz). High frequency oscillations have been shown to be related to stress level of the subjects. Our findings indicate that as the stress level is increased so does the energy of the high frequency component indicating a higher stimulation from the autonomic nervous system.

Citation Download Citation

Ata Akin and Hayrunnisa Bolay M.D. "High frequency oscillations in brain hemodynamic response", Proc. SPIE 6629, Diffuse Optical Imaging of Tissue, 66291F (12 July 2007); https://doi.org/10.1117/12.728233

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Sensors

Brain

Signal detection

Filtering (signal processing)

Hemodynamics

Linear filtering

Electronic filtering

Show All Keywords

Keywords/Phrases

Search In:

Publication Years