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. 2014 Dec 5;281:68–76. doi: 10.1016/j.neuroscience.2014.09.037

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© 2014 The Authors

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).

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Fig. 3 — Increased beta power contralateral to PD impairment. (A) Synthetic aperture magnetometry (SAM) peaks (orange) in left and right M1 in response to index finger movement (top panel). The middle panel shows representative band-pass filtered (15–35 Hz) virtual electrode (VE) traces of left and right M1 during passive rest periods. Prominent bursts of beta activity are seen in contralateral M1. (B) Power spectral density plots showing the percentage power (normalized to ipsilateral) in M1 contralateral and ipsilateral to symptomatic limbs in PD (n = 8, left panel) and the dominant hand in AMC (n = 9, right panel).