Surround inhibition in the primary motor cortex is task-specifically modulated in non-professional musicians but not in healthy controls during real piano playing
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Surround inhibition in the primary motor cortex is task-specifically modulated in non-professional musicians but not in healthy controls during real piano playing. / Márquez, Gonzalo; Keller, Martin; Lundbye-Jensen, Jesper; Taube, Wolfgang.
In: Neuroscience, Vol. 373, 2018, p. 106-112.Research output: Contribution to journal › Journal article › Research › peer-review
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T1 - Surround inhibition in the primary motor cortex is task-specifically modulated in non-professional musicians but not in healthy controls during real piano playing
AU - Márquez, Gonzalo
AU - Keller, Martin
AU - Lundbye-Jensen, Jesper
AU - Taube, Wolfgang
N1 - CURIS 2018 NEXS 063
PY - 2018
Y1 - 2018
N2 - Research has indicated that at the onset of a finger movement, unwanted contractions of adjacent muscles are prevented by inhibiting the cortical areas representing these muscles. This so-called surround inhibition (SI) seems relevant for the performance of selective finger movements but may not be necessary for tasks involving functional coupling between different finger muscles. Therefore, the present study compared SI between isolated finger movement and complex selective finger movements while playing a three-finger sequence on the piano in 9 non-professional musicians and 10 untrained control participants. Transcranial magnetic stimulation (TMS) was applied to the contralateral motor cortex to assess SI in the first dorsal interosseous (FDI), abductor pollicis brevis (APB) and abductor digiti minimi (ADM) during the movement preparation and the late phasic phases. The results reveal stronger SI during the preparation phase than during the phasic phase (30.6% vs. 10.7%; p<0.05) in the isolated-finger condition in both musicians and controls. Results also show higher SI in musicians during the preparation phase of the isolated finger condition compared to the preparation phase of the three-finger sequence (40% vs. 15%; p<0.05). However, the control group did not show this task-specific modulation of SI (isolated: 25% vs. sequence: 25%; p>0.05). Thus, musicians were able to modulate SI between conditions whereas control participants revealed constant levels of SI. Therefore, it may be assumed that long-term training as observed in skilled musicians is accompanied by task-specific effects on SI modulation potentially relating to the ability to perform selective and complex finger movements.
AB - Research has indicated that at the onset of a finger movement, unwanted contractions of adjacent muscles are prevented by inhibiting the cortical areas representing these muscles. This so-called surround inhibition (SI) seems relevant for the performance of selective finger movements but may not be necessary for tasks involving functional coupling between different finger muscles. Therefore, the present study compared SI between isolated finger movement and complex selective finger movements while playing a three-finger sequence on the piano in 9 non-professional musicians and 10 untrained control participants. Transcranial magnetic stimulation (TMS) was applied to the contralateral motor cortex to assess SI in the first dorsal interosseous (FDI), abductor pollicis brevis (APB) and abductor digiti minimi (ADM) during the movement preparation and the late phasic phases. The results reveal stronger SI during the preparation phase than during the phasic phase (30.6% vs. 10.7%; p<0.05) in the isolated-finger condition in both musicians and controls. Results also show higher SI in musicians during the preparation phase of the isolated finger condition compared to the preparation phase of the three-finger sequence (40% vs. 15%; p<0.05). However, the control group did not show this task-specific modulation of SI (isolated: 25% vs. sequence: 25%; p>0.05). Thus, musicians were able to modulate SI between conditions whereas control participants revealed constant levels of SI. Therefore, it may be assumed that long-term training as observed in skilled musicians is accompanied by task-specific effects on SI modulation potentially relating to the ability to perform selective and complex finger movements.
KW - Motor surround inhibition
KW - Transcranial magnetic stimulation
KW - Primary motor cortex
KW - Task complexity
KW - Musicians
U2 - 10.1016/j.neuroscience.2018.01.017
DO - 10.1016/j.neuroscience.2018.01.017
M3 - Journal article
C2 - 29339326
VL - 373
SP - 106
EP - 112
JO - Neuroscience
JF - Neuroscience
SN - 0306-4522
ER -
ID: 188678124