Fig. 5

Examples of physiological TWFs obtained by univariate analysis of auditory cortex ECoG responses. In each subplot, the x-axis shows the individual click in the 4-click train, and the y-axis shows the beta value (“temporal weight”) from linear regression, in units of proportion change in normalized response per ms ITD, computed with ordinary least squares regression. Each subplot represents the physiological TWF obtained by analyzing the responses recorded at a different ECoG array position and pulse rate. The examples are chosen to be representative of the very diverse results obtained. Red asterisks (*) mark regression weights that were individually significantly different from zero at p < 0.05 (not corrected for multiple comparisons). Some physiological TWFs showed strong and significant onset weighting (e.g., most channels in A), but many others did not, and it was not uncommon for temporal weights other than the first to be the largest absolute significant value