Innervation of cat visual areas 17 and 18 by physiologically identified X- and Y- type thalamic afferents. I. Arborization patterns and quantitative distribution of postsynaptic elements

The Journal of Comparative Neurology
T F FreundD Whitteridge


Specific thalamic afferents to visual areas 17 and 18 were physiologically classified as X or Y type and injected with horseradish peroxidase (HRP). The axons were examined under the light microscope and were then processed for correlated electron microscopy. X axons arborized in area 17 and in the border between area 17 and 18. The X axons all formed terminals throughout layer 6, but were heterogeneous in their distribution in layer 4. They either occupied the entire width of sublayers 4A and 4B or were strongly biased toward layer 4A. Y axons also arborized in layers 4 and 6, but in area 17 they did not form boutons in sublamina 4B. Some Y axons projected only to area 18; others branched and arborized in both areas 17 and 18. Only the collaterals of one X axons were found to enter area 18; all the others were restricted to area 17. Y axons formed three to four separate patches of boutons about 300-400 microns in diameter, while all but one X axon formed a single elongated patch. Y axons had thicker main branches (3-4 microns) than X axons (1.5-2.5 microns) at their point of entry to the cortex. The main axon trunks and their medium-calibre collaterals were myelinated, but the preterminal segments were unmyelinated and studded...Continue Reading


Dec 15, 1978·The Journal of Comparative Neurology·D Ferster, S LeVay
Jan 1, 1979·Annual Review of Neuroscience·R W Rodieck
Apr 15, 1977·The Journal of Comparative Neurology·S LeVay, D Ferster
Sep 1, 1979·Journal of Neurophysiology·J Bullier, G H Henry
Oct 15, 1979·The Journal of Comparative Neurology·G H HenryJ S Lund
Sep 1, 1979·Journal of Neurophysiology·J Bullier, G H Henry
Sep 1, 1979·Journal of Neurophysiology·J Bullier, G H Henry
Aug 20, 1976·Brain Research·S LeVay, C D Gilbert
Nov 1, 1976·The Journal of Physiology·S Hochstein, R M Shapley
Sep 1, 1975·The Journal of Comparative Neurology·C D Gilbert, J P Kelly
Jul 1, 1972·Journal of Neurophysiology·K P HoffmannS M Sherman
Oct 12, 1971·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·L J Garey, T P Powell
Jul 1, 1974·The Journal of Physiology·B G Cleland, W R Levick
Jul 8, 1980·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·P Lennie
Sep 20, 1984·The Journal of Comparative Neurology·J BullierW Salinger
Apr 1, 1982·Physiological Reviews·S M Sherman, P D Spear
Sep 1, 1983·The Journal of Physiology·D Ferster, S Lindström
Oct 31, 1983·Brain Research·D A Winfield, T P Powell
Jul 1, 1982·The Journal of Physiology·G Martin, M Morad
Mar 1, 1982·Journal of Neurophysiology·J BullierG H Henry
Jun 1, 1981·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·J C Adams
Jul 1, 1981·Journal of Neurophysiology·M J FriedlanderS M Sherman
Jan 1, 1980·Experimental Brain Research·J P Hornung, L J Garey
Apr 15, 1980·The Journal of Comparative Neurology·E E Geisert
Oct 1, 1980·Journal of Neurophysiology·B DreherP T Hale

❮ Previous
Next ❯


Jan 1, 1989·Trends in Neurosciences·J R Naegele, C J Barnstable
Sep 23, 2000·Behavioural Brain Research·L Zaborszky, A Duque
Aug 15, 2002·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Lee-Ann Coleman, Michael J Friedlander
Mar 29, 2003·Neural Networks : the Official Journal of the International Neural Network Society·E KörnerT Rodemann
Dec 18, 2007·Nature Neuroscience·Jianzhong Z JinJose-Manuel Alonso
Jun 13, 2002·The European Journal of Neuroscience·Georg Schweigart, Ulf T Eysel
Jun 1, 1987·Proceedings of the National Academy of Sciences of the United States of America·R E Soodak
Jan 1, 1991·The European Journal of Neuroscience·G. H. HenryJ. Bullier
Jun 1, 1994·The European Journal of Neuroscience·J C HouzelG Innocenti
Jan 30, 2009·Journal of Neurophysiology·Chun-I YehJose-Manuel Alonso
Jun 18, 2004·Journal of Cognitive Neuroscience·A RodriguezR Granger
Mar 5, 2014·Proceedings of the National Academy of Sciences of the United States of America·Toru TakahataJon H Kaas
Nov 20, 2004·Proceedings of the National Academy of Sciences of the United States of America·Lawrence Sirovich, Robert Uglesich
Jun 1, 2014·Neural Computation·Dylan R Muir, Matthew Cook
Jun 30, 2009·The Journal of Comparative Neurology·John C AndersonKevan A C Martin
Jul 28, 2009·The Journal of Comparative Neurology·Nuno Maçarico da Costa, Kevan A C Martin
Jun 23, 2011·The European Journal of Neuroscience·Gustavo Deco, Alexander Thiele
Jul 25, 2012·The Journal of Comparative Neurology·Roan MarionVivien A Casagrande
May 16, 2014·The European Journal of Neuroscience·Sarah CattanStéphane Molotchnikoff
Sep 9, 2015·Frontiers in Neuroanatomy·Javier DeFelipe
Apr 3, 2010·Science·Hsi-Ping WangTerrence J Sejnowski
Jul 31, 2012·Neuron·Tatsuo K SatoMatteo Carandini
Apr 30, 2013·NeuroImage·Nuno Maçarico da Costa, Kevan A C Martin
Feb 17, 2015·Neuroscience Research·Jude F Mitchell, David A Leopold
Jan 12, 2017·The Journal of Comparative Neurology·Jill R GlausierDavid A Lewis
Sep 1, 1988·Experimental Neurology·B P Choudhury
Jul 12, 2001·The Journal of Comparative Neurology·P H Smith, L C Populin
Aug 9, 2001·The Journal of Comparative Neurology·P BuzásZ F Kisvárday

❮ Previous
Next ❯

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Hereditary Sensory Autonomic Neuropathy

Hereditary Sensory Autonomic Neuropathies are a group of inherited neurodegenerative disorders characterized clinically by loss of sensation and autonomic dysfunction. Here is the latest research on these neuropathies.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Landau-Kleffner Syndrome

Landau Kleffner syndrome (LKS), also called infantile acquired aphasia, acquired epileptic aphasia, or aphasia with convulsive disorder, is a rare childhood neurological syndrome characterized by the sudden or gradual development of aphasia (the inability to understand or express language) and an abnormal electroencephalogram. Discover the latest research on LKS here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.


Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Regulation of Vocal-Motor Plasticity

Dopaminergic projections to the basal ganglia and nucleus accumbens shape the learning and plasticity of motivated behaviors across species including the regulation of vocal-motor plasticity and performance in songbirds. Discover the latest research on the regulation of vocal-motor plasticity here.