TY - JOUR
T1 - Spatial-temporal dynamics of the sensorimotor cortex
T2 - Sustained and transient activity
AU - Salari, E.
AU - Freudenburg, Z. V.
AU - Vansteensel, M. J.
AU - Ramsey, N. F.
N1 - Funding Information:
Manuscript received December 19, 2017; revised February 21, 2018; accepted March 23, 2018. Date of publication March 29, 2018; date of current version May 8, 2018. This work was supported by the European Union (ERC-Advanced ‘iConnect’) under Grant 320708. (Corresponding author: N. F. Ramsey.) The authors are with the Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584CX Utrecht, The Netherlands (e-mail: [email protected]). Digital Object Identifier 10.1109/TNSRE.2018.2821058
Publisher Copyright:
© 2001-2011 IEEE.
PY - 2018/5
Y1 - 2018/5
N2 - How the sensorimotor cortex is organized with respect to controlling different features of movement is unclear. One unresolved question concerns the relation between the duration of an action and the duration of the associated neuronal activity change in the sensorimotor cortex. Using subdural electrocorticography electrodes, we investigated in five subjects, whether high frequency band (HFB; 75-135 Hz) power changes have a transient or sustained relation to speech duration, during pronunciation of the Dutch /i/ vowel with different durations. We showed that the neuronal activity patterns recorded from the sensorimotor cortex can be directly related to action duration in some locations, whereas in other locations, during the same action, neuronal activity is transient, with a peak in HFB activity at movement onset and/or offset. This data sheds light on the neural underpinnings of motor actions and we discuss the possible mechanisms underlying these different response types.
AB - How the sensorimotor cortex is organized with respect to controlling different features of movement is unclear. One unresolved question concerns the relation between the duration of an action and the duration of the associated neuronal activity change in the sensorimotor cortex. Using subdural electrocorticography electrodes, we investigated in five subjects, whether high frequency band (HFB; 75-135 Hz) power changes have a transient or sustained relation to speech duration, during pronunciation of the Dutch /i/ vowel with different durations. We showed that the neuronal activity patterns recorded from the sensorimotor cortex can be directly related to action duration in some locations, whereas in other locations, during the same action, neuronal activity is transient, with a peak in HFB activity at movement onset and/or offset. This data sheds light on the neural underpinnings of motor actions and we discuss the possible mechanisms underlying these different response types.
KW - duration
KW - ECoG
KW - movement
KW - Sensorimotor cortex
KW - speech
UR - http://www.scopus.com/inward/record.url?scp=85044766556&partnerID=8YFLogxK
U2 - 10.1109/TNSRE.2018.2821058
DO - 10.1109/TNSRE.2018.2821058
M3 - Article
C2 - 29752244
AN - SCOPUS:85044766556
SN - 1534-4320
VL - 26
SP - 1084
EP - 1092
JO - IEEE Transactions on Neural Systems and Rehabilitation Engineering
JF - IEEE Transactions on Neural Systems and Rehabilitation Engineering
IS - 5
ER -