Cortical connections of the auditory cortex in marmoset monkeys: Core and medial belt regions

@article{delaMothe2006CorticalCO,
  title={Cortical connections of the auditory cortex in marmoset monkeys: Core and medial belt regions},
  author={Lisa A. de la Mothe and Suzanne Blumell and Yoshinao Kajikawa and Troy A. Hackett},
  journal={Journal of Comparative Neurology},
  year={2006},
  volume={496}
}
The auditory cortex of primates contains a core region of three primary areas surrounded by a belt region of secondary areas. Recent neurophysiological studies suggest that the belt areas medial to the core have unique functional roles, including multisensory properties, but little is known about their connections. In this study and its companion, the cortical and subcortical connections of the core and medial belt regions of marmoset monkeys were compared to account for functional differences… 
Thalamic connections of the auditory cortex in marmoset monkeys: Core and medial belt regions
TLDR
The results indicate that parallel subcortical pathways target the core and medial belt regions and that RM and CM represent functionally distinct areas within the medial belt auditory cortex.
Thalamic Connections of Auditory Cortex in Marmoset Monkeys: Lateral Belt and Parabelt Regions
TLDR
The results of this study indicate that the organization of the marmoset auditory cortex is similar to other primates, and appears to come mainly from the MGC, whereas the parabelt received a strong projection from the PM, consistent with its position as a later stage of auditory cortical processing.
Cortical Connections of Auditory Cortex in Marmoset Monkeys: Lateral Belt and Parabelt Regions
TLDR
Hierarchical principles of anatomical organization in the marmoset that are consistent with those observed in other primates are indicated.
Multisensory convergence in auditory cortex, I. Cortical connections of the caudal superior temporal plane in macaque monkeys
TLDR
The findings indicate that the caudal medial auditory area may receive somatosensory input from nearby areas along the fundus of the lateral sulcus, and provides additional evidence for the functional specialization of the individual auditory belt areas.
Cortical input to the frontal pole of the marmoset monkey.
TLDR
The pattern of frontopolar afferents suggests an interface between high-order representations of the sensory world and internally generated states, including working memory, which may subserve ongoing evaluation of the consequences of decisions as well as other cognitive functions.
Projection from visual areas V2 and prostriata to caudal auditory cortex in the monkey.
TLDR
Rec reciprocal projections from visual cortex to caudal auditory cortical areas in macaque monkeys found direct projections from area prostriata and the peripheral visual representations of area V2 that suggest that these connections are involved in spatial localization.
Organization of auditory areas in the superior temporal gyrus of marmoset monkeys revealed by real-time optical imaging
TLDR
The results suggest that the belt region caudoventral to R is more complex than previously proposed, and calls for a refinement of the current primate auditory cortex model.
Intrinsic Connections of the Core Auditory Cortical Regions and Rostral Supratemporal Plane in the Macaque Monkey
TLDR
The results support a rostrally directed flow of auditory information with complex and recurrent connections, similar to the ventral stream of macaque visual cortex, in the caudorostral dimension.
Connections of the marmoset rostrotemporal auditory area: express pathways for analysis of affective content in hearing
TLDR
The results indicate that RT could provide an anatomical ‘shortcut’ for processing affective content in auditory information, and is probably functionally distinct from the other core areas.
Patterns of cortical input to the primary motor area in the marmoset monkey
TLDR
The results demonstrate that M1 is unified by a consistent pattern of major connections, but also shows regional variations in terms of minor inputs, which likely reflect requirements for control of voluntary movement involving different body parts.
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References

SHOWING 1-10 OF 136 REFERENCES
Thalamic connections of the auditory cortex in marmoset monkeys: Core and medial belt regions
TLDR
The results indicate that parallel subcortical pathways target the core and medial belt regions and that RM and CM represent functionally distinct areas within the medial belt auditory cortex.
Auditory belt and parabelt projections to the prefrontal cortex in the Rhesus monkey
TLDR
The present topographical results suggest that acoustic information diverges into separate streams that target distinct rostral and caudal domains of the prefrontal cortex, which may serve different acoustic functions.
Cortical connections of the second somatosensory area and the parietal ventral area in macaque monkeys
TLDR
These patterns of interconnections of cortical fields and thalamic nuclei suggest that the somatosensory system may not be segregated into two separate streams of information processing, as has been hypothesized for the visual system, and some fields may be involved in a variety of functions that require motor and sensory integration.
Subdivisions of auditory cortex and processing streams in primates.
  • J. Kaas, T. Hackett
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 2000
TLDR
The challenge for future researchers is to understand how this complex system in monkeys analyzes and utilizes auditory information.
Subdivisions of auditory cortex and ipsilateral cortical connections of the parabelt auditory cortex in macaque monkeys
TLDR
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.
Thalamocortical connections of the parabelt auditory cortex in macaque monkeys
TLDR
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.
Anatomical Evidence of Multimodal Integration in Primate Striate Cortex
TLDR
It is shown using retrograde tracers that peripheral area 17 subserving the visual field at an eccentricity of 10–20° receives projections from the core and parabelt areas of the auditory cortex as well as from the polysensory area of the temporal lobe (STP).
Auditory processing in primate cerebral cortex
Corticocortical connections of visual, sensorimotor, and multimodal processing areas in the parietal lobe of the macaque monkey
We studied the corticocortical connections of architectonically defined areas of parietal and temporoparietal cortex, with emphasis on areas in the intraparietal sulcus (IPS) that are implicated in
...
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