Functional Specialization in Rhesus Monkey Auditory Cortex

  title={Functional Specialization in Rhesus Monkey Auditory Cortex},
  author={Biao Tian and David H. Reser and Amy Durham and Alexander Kustov and Josef P. Rauschecker},
  pages={290 - 293}
Neurons in the lateral belt areas of rhesus monkey auditory cortex prefer complex sounds to pure tones, but functional specializations of these multiple maps in the superior temporal region have not been determined. We tested the specificity of neurons in the lateral belt with species-specific communication calls presented at different azimuth positions. We found that neurons in the anterior belt are more selective for the type of call, whereas neurons in the caudal belt consistently show the… 
Functional Mapping of the Primate Auditory System
Several auditory areas overlapped with previously identified visual areas, suggesting that the auditory system, like the visual system, contains separate pathways for processing stimulus quality, location, and motion.
Selectivity for space and time in early areas of the auditory dorsal stream in the rhesus monkey.
The results suggest that two functional substreams may exist within the auditory dorsal stream of the macaque, with fast neural responses with elevated temporal precision as well as neurons selective to sound location.
Functional architecture of auditory cortex
Functional MRI of the vocalization-processing network in the macaque brain
It is demonstrated that species-specific vocalizations in rhesus monkeys activate preferentially the auditory ventral stream, and in particular areas of the antero-lateral belt and parabelt.
Functional specialization of medial auditory belt cortex in the alert rhesus monkey.
Analysis of the structure of neural responses revealed that neurons were driven by low-level acoustic features in all fields, and medial belt areas RM and MM have to be considered early stages of auditory cortical processing.
Cortical Connections of Auditory Cortex in Marmoset Monkeys: Lateral Belt and Parabelt Regions
Hierarchical principles of anatomical organization in the marmoset that are consistent with those observed in other primates are indicated.


Mechanisms and streams for processing of "what" and "where" in auditory cortex.
  • J. Rauschecker, B. Tian
  • Biology, Psychology
    Proceedings of the National Academy of Sciences of the United States of America
  • 2000
The cortical auditory system of primates is divided into at least two processing streams, a spatial stream that originates in the caudal part of the superior temporal gyrus and projects to the parietal cortex, and a pattern or object stream originating in the more anterior portions of the lateral belt.
Serial and parallel processing in rhesus monkey auditory cortex
Auditory cortex on the exposed supratemporal plane in four anesthetized rhesus monkeys was mapped electrophysiologically with both pure‐tone (PT) and broad‐band complex sounds. The mapping confirmed
Processing of complex sounds in the macaque nonprimary auditory cortex.
The lateral areas of the monkey auditory cortex appear to be part of a hierarchical sequence in which neurons prefer increasingly complex stimuli and may form an important stage in the preprocessing of communication sounds.
Subdivisions of auditory cortex and ipsilateral cortical connections of the parabelt auditory cortex in macaque monkeys
Observations support the concept of dividing the auditory cortex into core, belt, and parabelt; provide evidence for including the rostral area in the core; suggest the existence of as many as seven or eight belt fields; provideevidence for at least two subdivisions of the parab belt; and identify regions of the temporal lobe involved in auditory processing.
Auditory processing in primate cerebral cortex
Correlation between the activity of single auditory cortical neurons and sound-localization behavior in the macaque monkey.
The responses of single neurons in the primary auditory cortex and the caudomedial field of two monkeys support the hypothesis that auditory space is processed in a serial manner from AI to CM in the primate cerebral cortex.
Thalamocortical connections of the parabelt auditory cortex in macaque monkeys
The thalamocortical connections of the parabelt auditory cortex are described based on multiple injections of neuronal tracers into this region in each of five macaque monkeys, suggesting that this region represents a third level of auditory cortical processing, which is not influenced by direct inputs from primary cortical or subcortical auditory structures.
Cortical processing of complex sounds
Identification of a pathway for intelligible speech in the left temporal lobe.
It is demonstrated that the left superior temporal sulcus responds to the presence of phonetic information, but its anterior part only responds if the stimulus is also intelligible, demonstrating a left anterior temporal pathway for speech comprehension.