Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network

  Advanced Search  

J Neurophysiology Parsing pain perception between nociceptive

Summary: 1
J Neurophysiology
Parsing pain perception between nociceptive
representation and magnitude estimation
M.N. Baliki1
, P.Y. Geha1
, A.V. Apkarian1, 2, 3
Department of Physiology, 2
Department of Anesthesia, 3
Department of Surgery,
Northwestern University, Feinberg School of Medicine, Chicago IL 60611
Correspondence should be addressed to A. Vania Apkarian (a-apkarian@northwestern.edu)
Assessing the size of objects rapidly and accurately clearly has survival value. A central
multi-sensory module for subjective magnitude assessment is therefore highly likely,
suggested by psychophysical studies, and proposed on theoretical grounds. Given that
pain perception is fundamentally an assessment of stimulus intensity, it must necessarily
engage such a central module. Accordingly, we compared fMRI activity of pain
magnitude ratings to matched visual magnitude ratings in 14 subjects. We show that brain


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


Collections: Biology and Medicine