Figure 2.

ECoG mapping of music and language

Subdural electrode array colored by task effect. Electrodes that showed significant activation from baseline to language perception (auditory sentence repetition task), music perception (tone sequence repetition task via keyboard play), both language and music perception, and speech production. The MRI-derived mask of pathological tumor tissue is marked in opaque crimson. Exemplar recording sites plotted on top right (with corresponding black circle denoting site on ECoG grid), plotting response to language (blue) and music (yellow). Responses are combined across all tones/words across each sequence. Significant activity from baseline (500–100 ms pre-sequence) plotted on time trace in colored bars (Wilcoxon signed rank, FDR-corrected q < 0.05). Activity was sampled across all tones and words, including mid-trial elements, explaining the lack of return to baseline for active traces before 0ms. 28 electrodes were active for language (green + blue), and 11 were active for music (green + yellow).