Cyto- and chemoarchitecture of the cerebral cortex of the Australian echidna (Tachyglossus aculeatus). I. Areal organization

The Journal of Comparative Neurology
Maria HassiotisKen W S Ashwell

Abstract

We have examined the topography of the cerebral cortex of the Australian echidna (Tachyglossus aculeatus), using Nissl and myelin staining, immunoreactivity for parvalbumin, calbindin, and nonphosphorylated neurofilament protein (SMI-32 antibody), and histochemistry for acetylcholinesterase (AChE) and NADPH diaphorase. Myelinated fibers terminating in layer IV of the cortex were abundant in the primary sensory cortical areas (areas S1, R, and PV of somatosensory cortex; primary visual cortex) as well as the frontal cortex. Parvalbumin immunoreactivity was particularly intense in the neuropil and somata of somatosensory regions (S1, R, and PV areas) but was poor in motor cortex. Immunoreactivity with the SMI-32 antibody was largely confined to a single sublayer of layer V pyramidal neurons in discrete subregions of the somatosensory, visual, and auditory cortices, as well as a large field in the frontal cortex (Fr1). Surprisingly, SMI-32 neurons were absent from the motor cortex. In AChE preparations, S1, R, V1, and A regions displayed intense reactivity in supragranular layers. Our findings indicate that there is substantial regional differentiation in the expanded frontal cortex of this monotreme. Although we agree with many o...Continue Reading

References

Jan 15, 1977·The Journal of Comparative Neurology·J E Krettek, J L Price
Apr 15, 1978·The Journal of Comparative Neurology·L B Haberly, J L Price
Aug 1, 1978·Royal Society of Health Journal·R K Griffiths
Jul 1, 1977·The Journal of Comparative Neurology·R C Bohringer, M J Rowe
May 1, 1987·Proceedings of the National Academy of Sciences of the United States of America·H Ksiezak-RedingS H Yen
Mar 1, 1988·Proceedings of the National Academy of Sciences of the United States of America·V M LeeR A Lazzarini
Jan 1, 1987·Brain, Behavior and Evolution·I DivacJ S McKenzie
May 1, 1987·Proceedings of the National Academy of Sciences of the United States of America·P N HoffmanD L Price
Oct 1, 1986·Physiology & Behavior·J P Kroon, A L Riley
Jan 1, 1972·Brain, Behavior and Evolution·C M Leonard
Mar 1, 1983·Journal of Neuroscience Methods·B Hutchins, J T Weber
Oct 20, 1984·The Journal of Comparative Neurology·P S Ulinski
Oct 1, 1983·Proceedings of the National Academy of Sciences of the United States of America·L A Sternberger, N H Sternberger
Jan 1, 1982·The Journal of Cell Biology·J R Morris, R J Lasek
Jan 9, 1995·The Journal of Comparative Neurology·L KrubitzerM Calford
Apr 1, 1993·Comparative Biochemistry and Physiology. Comparative Physiology·A Reiner
Jun 1, 1996·The Journal of Cell Biology·Z XuD W Cleveland
Apr 1, 1997·Proceedings of the National Academy of Sciences of the United States of America·H J Karten
Jan 1, 1997·Brain, Behavior and Evolution·G F Striedter
Sep 28, 1998·Annals of Neurology·B M MorrisonJ H Morrison
May 3, 2000·The European Journal of Neuroscience·S GeyerM Matelli
Nov 29, 2002·Brain, Behavior and Evolution·Ann B ButlerPaul R Manger
Apr 1, 1949·Proceedings of the Society for Experimental Biology and Medicine·G B KOELLE, J A FRIEDENWALD

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Citations

Aug 25, 2007·Brain Structure & Function·K W S AshwellC R R Watson
Nov 18, 2008·Brain Structure & Function·Chet C SherwoodPatrick R Hof
Jun 1, 2010·Brain Structure & Function·Camilla Butti, Patrick R Hof
Jun 10, 2011·Brain Structure & Function·Ladislav OudaJosef Syka
Apr 12, 2005·Journal of Chemical Neuroanatomy·Denis BoireMaurice Ptito
Feb 24, 2006·Brain, Behavior and Evolution·Ken W S Ashwell, Jennifer M Phillips
Jul 1, 2006·Brain, Behavior and Evolution·Ken W S AshwellGeorge Paxinos
May 19, 2007·Brain, Behavior and Evolution·K W S AshwellC R R Watson
Sep 17, 2014·Progress in Neurobiology·Germán Mendoza, Hugo Merchant
Mar 11, 2016·Zoology : Analysis of Complex Systems, ZACS·Ken W S Ashwell
Oct 4, 2005·Journal of Chemical Neuroanatomy·Ken W S AshwellGeorge Paxinos
Aug 16, 2005·Journal of Chemical Neuroanatomy·Ken W S Ashwell, George Paxinos
Jul 5, 2005·Journal of Chemical Neuroanatomy·Ken W S AshwellGeorge Paxinos
Jun 7, 2005·Neuroscience Letters·Zsolt B Baldauf
Jul 24, 2014·Zoology : Analysis of Complex Systems, ZACS·Ken W S AshwellAnne M Musser
May 1, 2010·Hearing Research·Jeffrey G MellottStephen G Lomber
Jun 22, 2011·Brain, Behavior and Evolution·Jon H Kaas
Dec 7, 2011·Brain, Behavior and Evolution·Ken W S Ashwell, Craig D Hardman
Dec 1, 2007·Journal of the Royal Society of Medicine·Ross MacKenzieKevin McGeechan
Oct 8, 2005·The Anatomical Record. Part A, Discoveries in Molecular, Cellular, and Evolutionary Biology·Patrick R Hof, Chet C Sherwood
Oct 26, 2005·Brain, Behavior and Evolution·Ken W S Ashwell
Oct 26, 2005·Brain, Behavior and Evolution·Ken W S Ashwell
Jul 12, 2019·The European Journal of Neuroscience·Asgeir Kobro-Flatmoen, Menno P Witter

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