Imaging of neural oscillations with embedded inferential and group prevalence statistics
Fig 9
Mapping correlation of a peripheral signal with neural oscillation amplitudes.
a) video frames from an eye tracker camera during a MEG recording at rest, pupil diameter was extracted using a fitted ellipse. b) pupil diameter time-series time-locked to a visual stimulus onset (overlaid trials). The gray bar indicates the baseline time period for analysis. c) subcorr map showing sources whose amplitudes correlate with pupil diameter across trials during the visual task. The signal subspace for this analysis contained one significant component which signal correlated at r = −0.44 with changes in pupil diameter. The maps were threshold at 75% of the maximum value).