Extended Data Fig. 2 |. Speech-responsiveness.

Circles represent electrodes in the immediate vicinity of the auditory cortex, based on their 3D coordinates in the ‘fsaverage’ space. Filled circles indicate speech-responsiveness, meaning the electrode site responds significantly differently to speech compared to silence (see ‘Electrode selection’ in Methods). Non-responsiveness could mean the electrode is not sound-responsive, is sound-responsive but not speech-responsive, or has insufficient signal-to-noise ratio (SNR). The non-responsive electrodes were excluded from all analyses.