Fig. 8: Comparison of electrode sites encoding prosodic and segmental features.
From: Cortical processing of discrete prosodic patterns in continuous speech
a Electrode sites in the supratemporal plane (STP) showing separability of features (pitch accent, vowel identity, consonant identity, consonant manner, and consonant place of articulation). The size of the circles indicates the separability metric normalized per participant. The location of the electrode sites has been normalized to the MNI space and plotted on the MNI brain. Electrode sites showing pitch accent separability are primarily localized to posteromedial Heschl’s gyrus (pmHG), while electrodes showing vowel and consonant feature separability were localized to both posteromedial and anterolateral Heschl’s gyrus, extending to superior temporal gyrus and planum temporale. b Multi-dimensional scaling (three dimensions) visualizing the distances between HG and STG high gamma responses to the pitch accents, vowels, and consonants across all participants. The colors of the labels show cluster group membership of the electrodes derived using hierarchical agglomerative clustering.
