Neural correlates of sound.
Culture, development, and training.
Deficits, disorders, therapy, and recovery.
Attention and memory.
Embodiment, motion, and emotion.
Neural correlates of sound
Hemispheric differences
Schönwiesner et al. (NM II no. 9, pp. 89-92) have investigated the responses of the left and the right
auditory cortices to novel noise-like stimuli which differ in spectral and temporal complexity. Their
fMRI study shows a leftward preference for temporal modulation, which is essential for speech per-
ception, and an equivalent preference on the right side for spectral modulation, which is essential
for music perception (p. 92). Their findings agree with a model of hemispheric functional asymmetry
proposed by Zatorre & Belin (2001)
Figure 3.2. The Auditory cortex is stituated in the Superior temporal gyrus.
The inset shows a section through the temporal lobe.
The figure shows the auditory core area (A I, green), the auditory belt area (grey), and the parabelt
area (Area 22, light green).
From the auditory areas, dorsal and ventral pathways project to the prefrontal cortex. The ven-
tral pathway deals with identification of sounds and their meaning. The dorsal pathway deals with
sound localization and movements.
(Brodal 210:249)