Fig. 7.

Predictions and test for saccade rate and head velocity. Here, using data from Experiment 2 from 29 subjects we test predictions on saccade rate and head velocity. (A) EEG has significant WSC with saccade rate but not head velocity, and neither difference with attentional state (attend: blue, distract: purple). (B) Significant ISC is observed for all subjects for saccade rate (29/29) but only a subset of subjects for head velocity (8/29). (C) Saccade rate, but not head velocity are predictive of memory performance across subjects. (D) Attention modulates ISC of saccade rate but not head velocity. Saccade rate is computed similarly to HR. Head velocity is calculated as the magnitude of the Hilbert transform of head position, combining horizontal, vertical, and depth directions with Euclidean norm. Significance established using the same methods as above.