Open AccessDifferent activation dynamics in multiple neural systems during simulated driving
Author(s) -
Calhoun Vince D.,
Pekar James J.,
McGinty Vince B.,
Adali Tulay,
Watson Todd D.,
Pearlson Godfrey D.
Publication year - 2002
Publication title -
human brain mapping
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.005
H-Index - 191
eISSN - 1097-0193
pISSN - 1065-9471
DOI - 10.1002/hbm.10032
Subject(s) - hum , neuroscience , anterior cingulate cortex , vigilance (psychology) , psychology , cognition , sensory system , jump , neural correlates of consciousness , physics , art , quantum mechanics , performance art , art history
Driving is a complex behavior that recruits multiple cognitive elements. We report on an imaging study of simulated driving that reveals multiple neural systems, each of which have different activation dynamics. The neural correlates of driving behavior are identified with fMRI and their modulation with speed is investigated. We decompose the activation into interpretable pieces using a novel, generally applicable approach, based upon independent component analysis. Some regions turn on or off, others exhibit a gradual decay, and yet others turn on transiently when starting or stopping driving. Signal in the anterior cingulate cortex, an area often associated with error monitoring and inhibition, decreases exponentially with a rate proportional to driving speed, whereas decreases in frontoparietal regions, implicated in vigilance, correlate with speed. Increases in cerebellar and occipital areas, presumably related to complex visuomotor integration, are activated during driving but not associated with driving speed. Hum. Brain Mapping 16:158–167, 2002. © 2002 Wiley‐Liss, Inc.