ArticleThe Journal of comparative neurology2019
Morphological heterogeneity among corticogeniculate neurons in ferrets: quantification and comparison with a previous report in macaque monkeys.
Article in The Journal of comparative neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 42 citations in OpenAlex.
- Article
- Dual parallel stream-specific and generalized effects of corticogeniculate feedback on LGN neurons in primate and carnivore.Nature communications · 2025Article
- Parallel Streams of Direct Corticogeniculate Feedback from Mid-level Extrastriate Cortex in the Macaque Monkey.eNeuro · 2024Article
- Third-generation rabies viral vectors allow nontoxic retrograde targeting of projection neurons with greatly increased efficiency.Cell reports methods · 2023Article
- Topological Sholl descriptors for neuronal clustering and classification.PLoS computational biology · 2022Article
- Robust effects of corticothalamic feedback and behavioral state on movie responses in mouse dLGN.eLife · 2022Article
- Morphological evidence for multiple distinct channels of corticogeniculate feedback originating in mid-level extrastriate visual areas of the ferret.Brain structure & function · 2021Article
- The synaptic inputs and thalamic projections of two classes of layer 6 corticothalamic neurons in primary somatosensory cortex of the mouse.The Journal of comparative neurology · 2021Article
- Developmental Changes in Pyramidal Cell Morphology in Multiple Visual Cortical Areas Using Cluster Analysis.Frontiers in computational neuroscience · 2021Article
- Role of Feedback Connections in Central Visual Processing.Annual review of vision science · 2020Review
- Physiological characterization of a rare subpopulation of doublet-spiking neurons in the ferret lateral geniculate nucleus.Journal of neurophysiology · 2020Article
- Functional Clusters of Neurons in Layer 6 of Macaque V1.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
- The Synaptic Organization of Layer 6 Circuits Reveals Inhibition as a Major Output of a Neocortical Sublamina.Cell reports · 2019Article
- Specialized Subpopulations of Deep-Layer Pyramidal Neurons in the Neocortex: Bridging Cellular Properties to Functional Consequences.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018Review
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
The corticogeniculate (CG) pathway links the visual cortex with the lateral geniculate nucleus (LGN) of the thalamus and is the first feedback connection in the mammalian visual system. Whether functional connections between CG neurons and LGN relay neurons obey or ignore the separation of feedforward visual signals into parallel processing streams is not known. Accordingly, there is some debate about whether CG neurons are morphologically heterogeneous or homogenous. Here we characterized the morphology of CG neurons in the ferret, a visual carnivore with distinct feedforward parallel processing streams, and compared the morphology of ferret CG neurons with CG neuronal morphology previously described in macaque monkeys [Briggs et al. (2016) Neuron, 90, 388]. We used a G-deleted rabies virus as a retrograde tracer to label CG neurons in adult ferrets. We then reconstructed complete dendritic morphologies for a large sample of virus-labeled CG neurons. Quantification of CG morphology revealed three distinct CG neuronal subtypes with striking similarities to the CG neuronal subtypes observed in macaques. These findings suggest that CG neurons may be morphologically diverse in a variety of highly visual mammals in which feedforward visual pathways are organized into parallel processing streams. Accordingly, these results provide support for the notion that CG feedback is functionally parallel stream-specific in ferrets and macaques.
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