Figure 5.

Time course of STS response. A, The plot shows the time course of the STS response to a single presentation of a McGurk syllable, extracted using a finite impulse response deconvolution procedure. The y-axis shows the BOLD percentage signal change. The x-axis is the time following stimulus onset (2 s per tick mark), and the black bar represents the 2 s duration of the McGurk syllable. The red line shows the STS response averaged across all nonperceivers. The green line shows the STS response averaged across all perceivers. The gray bars show the SEM at each time point. To generate these curves, in each subject the mean time series from all voxels in the STS ROI was calculated, followed by deconvolution. B, The time course of the STS response to a McGurk syllable calculated using a different technique. In each subject, the principle eigen time series from all voxels in the STS ROI was calculated using singular value decomposition, followed by deconvolution.