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INTRODUCTION Psychological theories and recent imaging
 

Summary: INTRODUCTION
Psychological theories and recent imaging
data allude to a common central mechanism
governing our abilities to discriminate and
judge intensities of stimuli impinging on the
senses. Within this framework, we examine
similarities and differences in brain activity
for magnitude rating in a painful and neutral
visual rating task using fMRI. We also
determine the correlation of various brain
areas with subjective intensity ratings and
identify cortical functional networks
underlying both tasks. These convergent
approaches aid us in identifying a cortical
network underlying magnitude estimation in
both tasks, and distinguishing between brain
regions that specifically provide nociceptive
information in contradistinction from
magnitude evaluation.
SFN 2006

  

Source: Apkarian, A. Vania - Department of Physiology, Northwestern University

 

Collections: Biology and Medicine