Cited by 186Neuroscience and Music PerceptionHearing, Cochlea, Tinnitus, GeneticsNeuroscience and Neuropharmacology Research

Evidence for nonreciprocal organization of the mouse auditory thalamocortical‐corticothalamic projection systems

Llano, Daniel A., Sherman, S. Murray·2008·Journal of Comparative Neurology

Abstract

We tested the hypothesis that information is routed from one area of the auditory cortex (AC) to another via the dorsal division of the medial geniculate body (MGBd) by analyzing the degree of reciprocal connectivity between the auditory thalamus and cortex. Biotinylated dextran amine injected into the primary AC (AI) or anterior auditory field (AAF) of mice produced large, “driver‐type” terminals primarily in the MGBd, with essentially no such terminals in the ventral MGB (MGBv). In contrast, small, “modulator‐type” terminals were found primarily in the MGBv, and this coincided with areas of retrogradely labeled thalamocortical cell bodies. After MGBv injections, anterograde label was observed in layers 4 and 6 of the AI and AAF, which coincided with retrogradely labeled layer 6 cell bodies. After MGBd injections, thalamocortical terminals were seen in layers 1, 4, and 6 of the secondary AC and dorsoposterior AC, which coincided with labeled layer 6 cell bodies. Notably, after MGBd injection, a substantial number of layer 5 cells were labeled in all AC areas, whereas very few were seen after MGBv injection. Further, the degree of anterograde label in layer 4 of cortical columns containing labeled layer 6 cell bodies was greater than in columns containing labeled layer 5 cell bodies. These data suggest that auditory layer 5 corticothalamic projections are targeted to the MGBd in a nonreciprocal fashion and that the MGBd may route this information to the nonprimary AC. J. Comp. Neurol. 507:1209–1227, 2008. © 2008 Wiley‐Liss, Inc.

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Crossref · 10.1002/cne.21602

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  • The auditory pathway involves primary and secondary AUD areas and different MG nuclei.

    “and the auditory pathway (involving primary and secondary AUD areas and different MG nuclei)82,98”

    From A mesoscale connectome of the mouse brain (2014) · cites this paper as [82]

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Authors
Llano, D. A., & Sherman, S. M.
Affiliations
University of Chicago (US)
Corresponding author
Llano, Daniel A.
Venue
Journal of Comparative Neurology
Publisher
Wiley
Published
2008-01-07
Volume
507
Issue
2
Pages
1209-1227
ISSN
  • 0021-9967 (ISSN-L)
  • 1096-9861
OpenAlex
W2007541448
Cited by
186
References
105
Citations by year
2026: 6 · 2025: 8 · 2024: 4 · 2023: 11 · 2022: 7 · 2021: 30 · 2020: 14 · 2019: 12 · 2018: 10 · 2017: 10 · 2016: 14 · 2015: 8 · 2014: 9 · 2013: 9 · 2012: 7
FWCI
4.65
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Comparative Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Chicago
  • National Eye Institute (R01EY003038, EY003038)
  • National Institute on Deafness and Other Communication Disorders (R01DC008794, DC008320, DC-008794, K08DC008320)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neuroscience and Music Perception
  • Life Sciences › Neuroscience › Sensory Systems › Hearing, Cochlea, Tinnitus, Genetics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
auditory thalamus, corticothalamic projections, thalamocortical connections, medial geniculate body, auditory cortex, primary auditory cortex, anterior auditory field, layer 5 neurons, retrograde tracing, anterograde tracing, cortical columns, mice
MeSH terms
Animals, Auditory Cortex, Auditory Pathways, Auditory Perception, Axons, Biotin, Brain Mapping, Calcium-Binding Proteins, Electron Transport Complex IV, Dextrans, Efferent Pathways, Female, Geniculate Bodies, Immunohistochemistry, Interneurons, Male, Mice, Inbred BALB C, Staining and Labeling, Biomarkers, Presynaptic Terminals, Pyramidal Cells, Mice

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