Fig. 5.

Generalizability- (or G-) coefficient time-frequency maps summarize the test-retest reliability of time-frequency measures using the 25 Study 1 subjects and three test occasions at electrode Fz. Evoked power (left column), phase-locking factor (inner-left column), total power (inner-right column), and phase-locking angle (right column) were estimated from EEG data collected during 20-Hz (top row), 30-Hz (middle row), and 40-Hz auditory steady state stimulation. EEG frequency, in Hertz (Hz), is shown on the y-axis and time, in milliseconds (ms), is shown on the x-axis, with horizontal dashed green lines indicating the frequency of the steady-state stimulation. Brighter yellow to white colors indicate greater auditory steady-state response test-retest reliability, and labeled blue contour lines indicate boundaries between fair (G-coefficient ≥ 0.4), good (G-coefficient ≥ 0.65) and excellent (G-coefficient ≥ 0.75) reliability.