TY - JOUR
T1 - Attention networks and their interactions after right-hemisphere damage
AU - Chica, Ana B.
AU - Thiebaut De Schotten, Michel
AU - Toba, Monica
AU - Toba, Monica Narcisa
AU - Malhotra, Paresh
AU - Lupiáñez, Juan
AU - Bartolomeo, Paolo
PY - 2012
Y1 - 2012
N2 - Unilateral spatial neglect is a disabling condition, frequently observed after right-hemisphere damage (RHD), and associated with poor functional recovery. Clinical and experimental evidence indicates that attentional impairments are prominent in neglect. Recent brain imaging and behavioral studies in neglect patients and healthy individuals have provided insights into the mechanisms of attention and have revealed interactions between putative attentional networks. We recruited 16 RHD patients and 16 neurologically intact observers to perform a lateralized version of the Attention Network Test devised by Posner and co-workers (Fan et al., 2002). The results showed evidence of interaction between attentional networks during conflict resolution. Phasic alertness improved the orienting deficit to left-sided targets, reducing the interference of distracters in the neglected visual field, thus facilitating conflict resolution in the majority of patients. Modulating alertness may be an important way of improving basic deficits associated with neglect, such as those affecting spatial orienting.
AB - Unilateral spatial neglect is a disabling condition, frequently observed after right-hemisphere damage (RHD), and associated with poor functional recovery. Clinical and experimental evidence indicates that attentional impairments are prominent in neglect. Recent brain imaging and behavioral studies in neglect patients and healthy individuals have provided insights into the mechanisms of attention and have revealed interactions between putative attentional networks. We recruited 16 RHD patients and 16 neurologically intact observers to perform a lateralized version of the Attention Network Test devised by Posner and co-workers (Fan et al., 2002). The results showed evidence of interaction between attentional networks during conflict resolution. Phasic alertness improved the orienting deficit to left-sided targets, reducing the interference of distracters in the neglected visual field, thus facilitating conflict resolution in the majority of patients. Modulating alertness may be an important way of improving basic deficits associated with neglect, such as those affecting spatial orienting.
KW - Attention
KW - Attention
UR - http://hdl.handle.net/10807/19174
U2 - 10.1016/j.cortex.2011.01.009
DO - 10.1016/j.cortex.2011.01.009
M3 - Article
SN - 0010-9452
VL - 48
SP - 654
EP - 663
JO - Cortex
JF - Cortex
ER -