TY - JOUR
T1 - Anterior intraparietal sulcus is sensitive to bottom-up attention driven by stimulus salience
AU - Geng, Joy J.
AU - Mangun, George R
PY - 2009/8
Y1 - 2009/8
N2 - Frontal eye fields (FEF) and anterior intraparietal sulcus (aIPS) are involved in the control of voluntary attention in humans, but their functional differences remain poorly understood. We examined the activity in these brain regions as a function of task-irrelevant changes in target and nontarget perceptual salience during a sustained spatial attention task. Both aIPS and FEF were engaged during selective attention. FEF, but not aIPS, was sensitive to the direction of spatial attention. Conversely, aIPS, but not FEF, was modulated by the relative perceptual salience of the target and nontarget stimuli. These results demonstrate separable roles for FEF and aIPS in attentional control with FEF more involved in goal-directed spatial attention and aIPS relatively more sensitive to bottom-up attentional influences driven by stimulus salience.
AB - Frontal eye fields (FEF) and anterior intraparietal sulcus (aIPS) are involved in the control of voluntary attention in humans, but their functional differences remain poorly understood. We examined the activity in these brain regions as a function of task-irrelevant changes in target and nontarget perceptual salience during a sustained spatial attention task. Both aIPS and FEF were engaged during selective attention. FEF, but not aIPS, was sensitive to the direction of spatial attention. Conversely, aIPS, but not FEF, was modulated by the relative perceptual salience of the target and nontarget stimuli. These results demonstrate separable roles for FEF and aIPS in attentional control with FEF more involved in goal-directed spatial attention and aIPS relatively more sensitive to bottom-up attentional influences driven by stimulus salience.
UR - http://www.scopus.com/inward/record.url?scp=67650453729&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67650453729&partnerID=8YFLogxK
U2 - 10.1162/jocn.2009.21103
DO - 10.1162/jocn.2009.21103
M3 - Article
C2 - 18752405
AN - SCOPUS:67650453729
VL - 21
SP - 1584
EP - 1601
JO - Journal of Cognitive Neuroscience
JF - Journal of Cognitive Neuroscience
SN - 0898-929X
IS - 8
ER -