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

2006 ◽  
Vol 496 (1) ◽  
pp. 27-71 ◽  
Author(s):  
Lisa A. de la Mothe ◽  
Suzanne Blumell ◽  
Yoshinao Kajikawa ◽  
Troy A. Hackett
Keyword(s):  
Auditory Cortex ◽  
Cortical Connections ◽  
Marmoset Monkeys

scholarly journals Cortical Connections of Auditory Cortex in Marmoset Monkeys: Lateral Belt and Parabelt Regions

2012 ◽  
Vol 295 (5) ◽  
pp. 800-821 ◽  
Author(s):  
Lisa A. de la Mothe ◽  
Suzanne Blumell ◽  
Yoshinao Kajikawa ◽  
Troy A. Hackett
Keyword(s):  
Auditory Cortex ◽  
Cortical Connections ◽  
Marmoset Monkeys

scholarly journals Intrahemispheric cortico-cortical connections of the human auditory cortex

2014 ◽  
Vol 220 (6) ◽  
pp. 3537-3553 ◽  
Author(s):  
Leila Cammoun ◽  
Jean Philippe Thiran ◽  
Alessandra Griffa ◽  
Reto Meuli ◽  
Patric Hagmann ◽  
...  
Keyword(s):  
Auditory Cortex ◽  
Cortical Connections ◽  
Human Auditory Cortex

Sources of Somatosensory Input to the Caudal Belt Areas of Auditory Cortex

Perception ◽  
10.1068/p5841 ◽  
2007 ◽  
Vol 36 (10) ◽  
pp. 1419-1430 ◽  
Author(s):  
Troy A Hackett ◽  
John F Smiley ◽  
Istvan Ulbert ◽  
George Karmos ◽  
Peter Lakatos ◽  
...  
Keyword(s):  
Auditory Cortex ◽  
Nonhuman Primates ◽  
Superior Temporal Gyrus ◽  
Cortical Areas ◽  
Neuron Response ◽  
Cortical Connections ◽  
Somatosensory Input ◽  
Multisensory Convergence ◽  
Medial Geniculate ◽  
Somatic Input

The auditory cortex of nonhuman primates is comprised of a constellation of at least twelve interconnected areas distributed across three major regions on the superior temporal gyrus: core, belt, and parabelt. Individual areas are distinguished on the basis of unique profiles comprising architectonic features, thalamic and cortical connections, and neuron response properties. Recent demonstrations of convergent auditory – somatosensory interactions in the caudomedial (CM) and caudolateral (CL) belt areas prompted us to pursue anatomical studies to identify the source(s) of somatic input to auditory cortex. Corticocortical and thalamocortical connections were revealed by injecting neuroanatomical tracers into CM, CL, and adjoining fields of marmoset ( Callithrix jacchus jacchus) and macaque ( Macaca mulatta) monkeys. In addition to auditory cortex, the cortical connections of CM and CL included somatosensory (retroinsular, Ri; granular insula, Ig) and multisensory areas (temporal parietal occipital, temporal parietal temporal). Thalamic inputs included the medial geniculate complex and several multisensory nuclei (supra- geniculate, posterior, limitans, medial pulvinar), but not the ventroposterior complex. Injections of the core (A1, R) and rostromedial areas of auditory cortex revealed sparse multisensory connections. The results suggest that areas Ri and Ig are the principle sources of somatosensory input to the caudal belt, while multisensory regions of cortex and thalamus may also contribute. The present data add to growing evidence of multisensory convergence in cortical areas previously considered to be ‘unimodal’, and also indicate that auditory cortical areas differ in this respect.

Differential Representation of Species-Specific Primate Vocalizations in the Auditory Cortices of Marmoset and Cat

2001 ◽  
Vol 86 (5) ◽  
pp. 2616-2620 ◽  
Author(s):  
Xiaoqin Wang ◽  
Siddhartha C. Kadia
Keyword(s):  
Auditory Cortex ◽  
Primary Auditory Cortex ◽  
Cortical Processing ◽  
Neural Responses ◽  
The Difference ◽  
Auditory Cortices ◽  
Species Specific ◽  
Primate Vocalizations ◽  
Marmoset Monkeys

A number of studies in various species have demonstrated that natural vocalizations generally produce stronger neural responses than do their time-reversed versions. The majority of neurons in the primary auditory cortex (A1) of marmoset monkeys responds more strongly to natural marmoset vocalizations than to the time-reversed vocalizations. However, it was unclear whether such differences in neural responses were simply due to the difference between the acoustic structures of natural and time-reversed vocalizations or whether they also resulted from the difference in behavioral relevance of both types of the stimuli. To address this issue, we have compared neural responses to natural and time-reversed marmoset twitter calls in A1 of cats with those obtained from A1 of marmosets using identical stimuli. It was found that the preference for natural marmoset twitter calls demonstrated in marmoset A1 was absent in cat A1. While both cortices responded approximately equally to time-reversed twitter calls, marmoset A1 responded much more strongly to natural twitter calls than did cat A1. This differential representation of marmoset vocalizations in two cortices suggests that experience-dependent and possibly species-specific mechanisms are involved in cortical processing of communication sounds.

Multisensory convergence in auditory cortex, I. Cortical connections of the caudal superior temporal plane in macaque monkeys

2007 ◽  
Vol 502 (6) ◽  
pp. 894-923 ◽  
Author(s):  
John F. Smiley ◽  
Troy A. Hackett ◽  
Istvan Ulbert ◽  
George Karmas ◽  
Peter Lakatos ◽  
...  
Keyword(s):  
Auditory Cortex ◽  
Macaque Monkeys ◽  
Cortical Connections ◽  
Multisensory Convergence

scholarly journals Thalamic connections of the auditory cortex in marmoset monkeys: Core and medial belt regions

2006 ◽  
Vol 496 (1) ◽  
pp. 72-96 ◽  
Author(s):  
Lisa A. De La Mothe ◽  
Suzanne Blumell ◽  
Yoshinao Kajikawa ◽  
Troy A. Hackett
Keyword(s):  
Auditory Cortex ◽  
Marmoset Monkeys

scholarly journals Thalamic Connections of Auditory Cortex in Marmoset Monkeys: Lateral Belt and Parabelt Regions

2012 ◽  
Vol 295 (5) ◽  
pp. 822-836 ◽  
Author(s):  
Lisa A. de la Mothe ◽  
Suzanne Blumell ◽  
Yoshinao Kajikawa ◽  
Troy A. Hackett
Keyword(s):  
Auditory Cortex ◽  
Marmoset Monkeys

Thalamo-cortical connections of areas 3a and M1 in marmoset monkeys

2001 ◽  
Vol 435 (3) ◽  
pp. 291-310 ◽  
Author(s):  
Kelly J. Huffman ◽  
Leah Krubitzer
Keyword(s):  
Cortical Connections ◽  
Marmoset Monkeys
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