Tracking cognitive processes with functional MRI mental chronometry.

Abstract:

:Functional magnetic resonance imaging (fMRI) is used widely to determine the spatial layout of brain activation associated with specific cognitive tasks at a spatial scale of millimeters. Recent methodological improvements have made it possible to determine the latency and temporal structure of the activation at a temporal scale of few hundreds of milliseconds. Despite the sluggishness of the hemodynamic response, fMRI can detect a cascade of neural activations - the signature of a sequence of cognitive processes. Decomposing the processing into stages is greatly aided by measuring intermediate responses. By combining event-related fMRI and behavioral measurement in experiment and analysis, trial-by-trial temporal links can be established between cognition and its neural substrate.

journal_name

Curr Opin Neurobiol

authors

Formisano E,Goebel R

doi

10.1016/s0959-4388(03)00044-8

subject

Has Abstract

pub_date

2003-04-01 00:00:00

pages

174-81

issue

2

eissn

0959-4388

issn

1873-6882

pii

S0959438803000448

journal_volume

13

pub_type

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