A Cross-species Comparison of Corticogeniculate Structure and Function
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Ophthalmology
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The corticogeniculate circuit is an evolutionarily conserved pathway linking the primary visual cortex with the visual thalamus in the feedback direction. While the corticogeniculate circuit is anatomically robust, the impact of corticogeniculate feedback on the visual response properties of visual thalamic neurons is subtle. Accordingly, discovering the function of corticogeniculate feedback in vision has been a particularly challenging task. In this review, the morphology, organization, physiology, and function of corticogeniculate feedback is compared across mammals commonly studied in visual neuroscience: primates, carnivores, rabbits, and rodents. Common structural and organizational motifs are present across species, including the organization of corticogeniculate feedback into parallel processing streams in highly visual mammals.
Motor Control of Distinct Layer 6 Corticothalamic Feedback Circuits.
Martinetti L, Autio D, Crandall S eNeuro. 2024; 11(7).
PMID: 38926084 PMC: 11236587. DOI: 10.1523/ENEURO.0255-24.2024.
Motor Control of Distinct Layer 6 Corticothalamic Feedback Circuits.
Martinetti L, Autio D, Crandall S bioRxiv. 2024; .
PMID: 38712153 PMC: 11071411. DOI: 10.1101/2024.04.22.590613.
Adusei M, Callaway E, Usrey W, Briggs F eNeuro. 2024; 11(3).
PMID: 38479809 PMC: 10946028. DOI: 10.1523/ENEURO.0364-23.2024.
Cortical feedback modulates distinct critical period development in mouse visual thalamus.
Li N, Liu Q, Zhang Y, Yang Z, Shi X, Gu Y iScience. 2023; 26(1):105752.
PMID: 36590174 PMC: 9794980. DOI: 10.1016/j.isci.2022.105752.
Adusei M, Hasse J, Briggs F Brain Struct Funct. 2021; 226(9):2777-2791.
PMID: 34636984 PMC: 9845063. DOI: 10.1007/s00429-021-02385-7.