Figure 3. Stimulus excerpt with all 26 predictors used to model brain responses.

From the top: phoneme-level information-theoretic variables, based on different context definitions: sentence, word, and sublexical context; intercepts for word- and phoneme-related brain activity, that is, a predictor to control for brain activity that does not scale with the variables under consideration; and an auditory processing model, consisting of an acoustic spectrogram (sound envelopes) and an onset spectrogram (sound onsets), each represented by eight predictors for eight frequency bands.