English: Debated configurations of auditory cortical organization in humans and non-human primate configuration for comparison. (A) The two main configurations of auditory core fields under debate (left, middle) in comparison with the “oblique” configuration proposed by the authors (right). The main frequency response areas based on the summary of recent evidence (Formisano et al., 2003; Humphries et al., 2010; Woods et al., 2010; Da Costa et al., 2011; Striem-Amit et al., 2011; Langers and van Dijk, 2012) are superimposed over this configuration. The suggested directions of the main gradient axes are indicated with green arrows next to each configuration. Additional anterior and posterior low frequency preference areas suggested by some studies are marked by red dashed lines. (B) Core fields and frequency preference areas in the superior temporal plane of macaque and human according to oblique configuration (left). Location of auditory belt fields in macaques and presumed location of belt fields in humans (right). Main gradient directions from low to high of the frequency response areas are indicated with green arrows left of each scheme. IS, intercalated sulcus; AG, annectant gyrus; CS, circular sulcus; FTS, first transversal sulcus.