Somatosensory cortex (S1) is involved in observational motor adaptation: median nerve stimulation disrupts learning and observation increases somatosensory evoked potentials correlated with learning gains¶

Claim · All claims
Evidence · 1 study (2 entries) · quant-synthesis r2 · q2
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Stimulation of the median nerve during observational practice disrupted learning. → Julian Rudisch 2024 q2 i? Observational practice increased sensory evoked potential amplitudes (not seen in controls), and amplitude change correlated positively with learning gains. → Julian Rudisch 2024 (2)

Evidence¶

Julian Rudisch 2024¶

Julian Rudisch, Luis K. H. Holzhauer, Karmen Kravanja, Fred H. Hamker & Claudia Voelcker-Rehage. (2024). A systematic review of observational practice for adaptation of reaching movements. npj Science of Learning. https://doi.org/10.1038/s41539-024-00271-5

q2 · i? · quant-synthesis · r?

Review narrative of McGregor et al.'s peripheral nerve stimulation experiment during observation of force-field adaptation videos. No effect size printed in the review.

"In order to unravel the involvement of S1 in observational learning, McGregor, et al.43 have demonstrated that stimulation of the median nerve during observational practice disrupted learning."

Julian Rudisch 2024 (2)¶

Julian Rudisch, Luis K. H. Holzhauer, Karmen Kravanja, Fred H. Hamker & Claudia Voelcker-Rehage. (2024). A systematic review of observational practice for adaptation of reaching movements. npj Science of Learning. https://doi.org/10.1038/s41539-024-00271-5

q2 · i? · quant-synthesis · r2

Review narrative of the second McGregor et al. experiment using EEG-recorded somatosensory evoked potentials of S1 before and after observation; a positive correlation with learning gains was reported. No correlation coefficient printed in the review.

"In a second experiment43 they showed that observational practice leads to increased amplitudes for the sensory evoked potential, an ef fect that was not visible for a control group. They furthermore found a positive correlation with the magnitude of the amplitude change and the learning gains."

Discussion¶

Learner Variables¶

• Sensory Integration — outcome: instruction changes it

Related Claims¶

• Observational learning is associated with changed functional connectivity between V5/MT and sensorimotor areas, and pre-learning sensorimotor connectivity predicts subsequent learning gains — related
• Primary motor cortex (M1) is involved in observational motor adaptation: inhibiting M1 disrupts learning and observing adaptation sequences increases M1 excitability — related
• Observational practice leads to adaptation of reaching in visuomotor rotation and force-field paradigms (d = -2.16 vs no practice) — related