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Coupling motifs and movement-associated change in subject 4.

By Kai J. Miller (137088), Dora Hermes (137089), Christopher J. Honey (80316), Adam O. Hebb (137090), Nick F. Ramsey (137091), Robert T. Knight (86917), Jeffrey G. Ojemann (137092) and Eberhard E. Fetz (137094)

Abstract

<p>(<b>A</b>) For the electrode site denoted “A” on the middle cortical rendering. On the far left, the Broadband amplitude (mean +/− 3*SEM) during epochs of movement of the thumb, index, and little fingers, and rest (right-most error bars are for rest, all sub-distributions are zeroed with respect to mean of rest epochs), as in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1002655#pcbi-1002655-g002" target="_blank">Figure 2J</a>. The coupling palette is as in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1002655#pcbi-1002655-g004" target="_blank">Figure 4</a>, with the number denoting the maximum scaling for the palette. The top bars to the right of the palette are the amplitude of the 4–8 Hz filtered potential for different behaviors, and the top bars on the far right show the magnitude of coupling during the different behaviors. On the bottom right are filtered amplitudes and the coupling for the 12–20 Hz range. (<b>B–J</b>) As in A, but for the electrode sites denoted B–J on the middle cortical rendering. (<b>K</b>) The spatial distribution of shift in broadband magnitude during thumb movement compared with rest (a signed r<sup>2</sup> measurement – maximum scaling denoted by number above the cortical rendering). (<b>L</b>) The 4–8 Hz shift in amplitude during thumb movement (also a signed r<sup>2</sup> measurement). (<b>M</b>) The shift in coupling of broadband to 4–8 Hz phase during thumb movement (a signed r<sup>2</sup> measurement comparing the distributions of projected epoch values, as in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1002655#pcbi-1002655-g005" target="_blank">Figure 5</a>). (<b>N</b>) Coupling of broadband to 4–8 Hz phase during rest epochs. As in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1002655#pcbi-1002655-g006" target="_blank">Figure 6E</a>, the strength of color as well as electrode diameter denote the magnitude of coupling, and the color itself denotes what the preferred phase of coupling is. In this case, the number above the cortical rendering denotes the maximum Z<sub>mod</sub> in the array. (<b>O to Q</b>) As in L–N, but for 12–20 Hz.</p

Topics: Neuroscience, motifs, movement-associated
Year: 2012
DOI identifier: 10.1371/journal.pcbi.1002655.g008
OAI identifier: oai:figshare.com:article/251572
Provided by: FigShare
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