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

Hearing Research
Justin S CetasN T McMullen

Abstract

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 relationship between the laminar and tonotopic organization of the MGV. Best frequency maps of the MGV in anesthetized adult New Zealand white rabbits were generated from cluster responses recorded at 30-100 microm intervals to randomly presented tone bursts. Parallel vertical penetrations, roughly perpendicular to the laminae, revealed a low-to-high frequency gradient within the MGV. Non-laminated regions of the ventral division, generally found at the rostral or caudal poles, did not demonstrate a systematic frequency gradient. In contrast to a predicted smooth gradient, best frequencies shifted in discrete steps across the axis of the laminae. A similar step-wise frequency gradient has been shown in the central nucleus of the inferior colliculu...Continue Reading

References

Dec 1, 1978·The Journal of Comparative Neurology·D L Oliver, W C Hall
Dec 16, 1977·Brain Research·T J Imig, H O Adrián
Jan 1, 1992·Experimental Brain Research·C E SchreinerM L Sutter
Jan 1, 1991·Experimental Brain Research·H Redies, S Brandner
Jul 1, 1991·Journal of Chemical Neuroanatomy·M Caballero-BledaL Puelles
Jul 1, 1990·The Journal of Comparative Neurology·W J Clerici, J R Coleman
Apr 22, 1989·The Journal of Comparative Neurology·H RediesO D Creutzfeldt
Apr 24, 1986·Neuroscience Letters·I Stiebler
Jan 1, 1972·Brain, Behavior and Evolution·I C Whitefield, D Purser
Sep 13, 1974·Brain Research·M M Merzenich, M D Reid
Jan 1, 1971·Zeitschrift für Zellforschung und mikroskopische Anatomie·E G Jones, A J Rockel
Jan 1, 1994·Experimental Brain Research·D P PhillipsL M Kitzes
Aug 8, 1994·The Journal of Comparative Neurology·J A Winer, J J Wenstrup
Feb 12, 1998·Proceedings of the National Academy of Sciences of the United States of America·K H EsserJ S Kanwal
Feb 5, 1998·Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology·J R MendelsonM L Sutter
Feb 5, 1998·Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology·G Ehret, C E Schreiner
May 13, 1999·Hearing Research·J A WinerD T Larue
Jun 9, 2000·Annual Review of Neuroscience·C E SchreinerM L Sutter

❮ Previous
Next ❯

Citations

Mar 18, 2011·Journal of Neurophysiology·Edward L Bartlett, Xiaoqin Wang
May 2, 2008·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Manuel S MalmiercaDouglas L Oliver
Jan 29, 2008·Neuroscience·H L ReadJ A Winer
Mar 17, 2010·The Journal of Comparative Neurology·Douglas A StoraceHeather L Read
Sep 27, 2005·Hearing Research·Martin Braun, Vladimir Chaloupka
Dec 15, 2010·Hearing Research·Heather L ReadJeffery A Winer
Feb 27, 2007·Hearing Research·Khaleel A Razak, Zoltan M Fuzessery
Feb 14, 2006·International Review of Neurobiology·Monty A Escabí, Heather L Read
Nov 26, 2015·Scientific Reports·Michelle MoerelElia Formisano
Mar 14, 2002·The Journal of Comparative Neurology·Justin S CetasNathaniel T McMullen
Mar 23, 2007·Journal of Neurophysiology·Daniel B PolleyMichael M Merzenich
Aug 17, 2014·Journal of Neurophysiology·Małgorzata M StrakaHubert H Lim
Mar 16, 2017·Frontiers in Neural Circuits·Hiroaki TsukanoKatsuei Shibuki
Mar 6, 2003·The Journal of Comparative Neurology·Justin S CetasNathaniel T McMullen
Mar 6, 2019·Scientific Reports·Lorenzo MancusoFranco Cauda

❮ Previous
Next ❯

Related Concepts

Related Feeds

Auditory Perception

Auditory perception is the ability to receive and interpret information attained by the ears. Here is the latest research on factors and underlying mechanisms that influence auditory perception.