NSCI 201 Chapter Notes -Bureau Of International Expositions, Anaerobic Glycolysis, Earby

63 views4 pages

Document Summary

Summary almost all fmri studies rely on an endogenous measure: bold contrast early research found that deoxygenated hb is paramagnetic and altered the t2* properties of nearby tissue. Pet fmri fmri: fmri spatial resolution determines our ability to separate adjacent brain regions with different functional properties collecting data using smaller voxels improves the spatial resolution (cost of inc. spatial resolution, is a dec. Bold signal) the vascular systems" organization and response properties introduce spatial constraints fmri temporal resolution ability to estimate the timing of neuronal activity from the measured hemodynamic changes using a short repetition time improves temporal resolution. Allows imaging of anything that can be tagged. Expensive and time-consuming energy is supplied to the brain via the vascular system more hemoglobin is supplied than needed, causing a decrease in deoxygenated hemoglobin. Deoxygenated hemoglobin reduces some forms (t*) of mr signal.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents

Related Questions