TY - JOUR
T1 - The Cortical Physiology of Ipsilateral Limb Movements
AU - Bundy, David T.
AU - Leuthardt, Eric C.
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/11
Y1 - 2019/11
N2 - Whereas voluntary movements have long been understood to derive primarily from the cortical hemisphere contralateral to a moving limb, substantial cortical activations also occur in the same-sided, or ipsilateral, cortical hemisphere. These ipsilateral motor activations have recently been shown to be useful to decode specific movement features. Furthermore, in contrast to the classical understanding that unilateral limb movements are solely driven by the contralateral hemisphere, it appears that the ipsilateral hemisphere plays an active and specific role in the planning and execution of voluntary movements. Here we review the movement-related activations observed in the ipsilateral cortical hemisphere, interpret this evidence in light of the potential roles of the ipsilateral hemisphere in the planning and execution of movements, and describe the implications for clinical populations.
AB - Whereas voluntary movements have long been understood to derive primarily from the cortical hemisphere contralateral to a moving limb, substantial cortical activations also occur in the same-sided, or ipsilateral, cortical hemisphere. These ipsilateral motor activations have recently been shown to be useful to decode specific movement features. Furthermore, in contrast to the classical understanding that unilateral limb movements are solely driven by the contralateral hemisphere, it appears that the ipsilateral hemisphere plays an active and specific role in the planning and execution of voluntary movements. Here we review the movement-related activations observed in the ipsilateral cortical hemisphere, interpret this evidence in light of the potential roles of the ipsilateral hemisphere in the planning and execution of movements, and describe the implications for clinical populations.
KW - bimanual coordination
KW - ipsilateral
KW - motor control
KW - voluntary movement
UR - http://www.scopus.com/inward/record.url?scp=85071888695&partnerID=8YFLogxK
U2 - 10.1016/j.tins.2019.08.008
DO - 10.1016/j.tins.2019.08.008
M3 - Review article
C2 - 31514976
AN - SCOPUS:85071888695
SN - 0166-2236
VL - 42
SP - 825
EP - 839
JO - Trends in Neurosciences
JF - Trends in Neurosciences
IS - 11
ER -