Frequency organization and cellular lamination in the medial geniculate body of the rabbit

@article{Cetas2001FrequencyOA,
  title={Frequency organization and cellular lamination in the medial geniculate body of the rabbit},
  author={Justin S. Cetas and Robin O Price and David S. Velenovsky and Donal G. Sinex and Nathaniel T. Mcmullen},
  journal={Hearing Research},
  year={2001},
  volume={155},
  pages={113-123}
}
Cellular laminae within the tonotopically organized ventral division of the medial geniculate body (MGV) of the cat have been proposed as the anatomical substrate for physiologically defined isofrequency contours. In most species, the laminae are not visible with routine Nissl stains, but are defined by the dendritic fields of principal cells and the terminal arbors of afferents arising from the inferior colliculus. In the present study, we have used the rabbit to directly examine the… Expand
Dendritic orientation and laminar architecture in the rabbit auditory thalamus
TLDR
A model is presented that incorporates cellular laminae and oriented dendritic growth to form frequency‐related slabs within the MGV, and it is revealed that MGV neurons in the central pars lateralis subdivision were oriented orthogonally to the tonotopic axis. Expand
Cell types and response properties of neurons in the ventral division of the medial geniculate body of the rabbit
TLDR
The juxtacellular labeling technique was used, in conjunction with Nissl, Golgi, and immunocytochemical methods, to study the morphology and response properties of cells in the ventral division of the medial geniculate body of the rabbit. Expand
Auditory thalamic organization: Cellular slabs, dendritic arbors and tectothalamic axons underlying the frequency map
TLDR
It is proposed that the rabbit is an ideal model to investigate the structural-functional basis of functional maps in the mammalian auditory forebrain. Expand
Functional Subregions in Primary Auditory Cortex Defined by Thalamocortical Terminal Arbors: An Electrophysiological and Anterograde Labeling Study
TLDR
A model is presented showing how patchy thalamocortical projections participate in the formation of tonotopic and binaural maps in primary auditory cortex. Expand
Topography of corticothalamic projections from the auditory cortex of the rat
TLDR
Insight is provided into the structural basis of corticofugal modulations related to the tonotopic organizations in the cortex and MG by making small injections of biocytin in cortical area Te1. Expand
A Discontinuous Tonotopic Organization in the Inferior Colliculus of the Rat
Audible frequencies of sound are encoded in a continuous manner along the length of the cochlea, and frequency is transmitted to the brain as a representation of place on the basilar membrane. TheExpand
Multiple topographically organized projections connect the central nucleus of the inferior colliculus to the ventral division of the medial geniculate nucleus in the gerbil, Meriones unguiculatus
TLDR
The results indicate that two parallel pathways arising in the CNIC remain largely separate in the medial geniculate nucleus of the gerbil, and it seems most likely that the neurons in the two terminal zones in the MGv perform different functions in audition. Expand
Distinct core thalamocortical pathways to central and dorsal primary auditory cortex
The cat primary auditory cortex (AI) is usually assumed to form one continuous functional region. However, the dorsal and central parts of the AI iso-frequency domain contain neurons that haveExpand
Topography of projections from the primary and non-primary auditory cortical areas to the medial geniculate body and thalamic reticular nucleus in the rat
TLDR
The results suggest that tonotopically comparable primary and non-primary subfields in the auditory cortex provide corticofugal excitatory effects to the same part of the ventral division of the medial geniculate body. Expand
Response features across the auditory midbrain reveal an organization consistent with a dual lemniscal pathway.
TLDR
Substantial differences in coding properties in two regions of the ICC are reported that are consistent with the hypothesis that the lemniscal pathway is made up of at least two distinct subpathways from the midbrain up to the cortex. Expand
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