Laminar organization of ON and OFF regions and ocular dominance in the striate cortex of the tree shrew (Tupaia belangeri)

The Journal of Comparative Neurology
R KretzT T Norton

Abstract

The organization of ON and OFF responses and ocular dominance in the striate cortex of the tree shrew was electrophysiologically investigated by using flashed, stationary visual stimuli presented monocularly to either the ipsilateral or contralateral eye. We measured cortical multi-unit activity at 25-micron intervals with glass-insulated platinum-plated tungsten microelectrodes. Penetrations were made perpendicular to the cortical layers and the responses were quantitatively analyzed in layers IIIc to V. In sublayers IIIb, IIIc, and upper V, phasic responses of approximately equal magnitude occurred to both light ON and light OFF (ON-OFF regions). In layer IV, tonic as well as phasic responses were often evoked by the flashed spot of light. In sublayer IVa stronger responses occurred to light ON than to light OFF (ON region) while in sublayer IVb stronger responses occurred to light OFF than to light ON (OFF region). In an ON region, the increased neural activity that occurred at light ON was often accompanied by a decrease in activity below baseline level at light OFF. A similar decrease often occurred in an OFF region at light ON. Recordings from the region of the cell-sparse cleft in layer IV were characterized by ON-OFF re...Continue Reading

References

May 1, 1978·Journal of Neurophysiology·P H Schiller, J G Malpeli
Oct 7, 1977·Brain Research·A L HumphreyT T Norton
May 1, 1979·Brain Research Bulletin·P G Kaufmann, G G Somjen
Feb 1, 1977·Vision Research·K K De Valois
Feb 18, 1985·Brain Research·T T NortonR Kretz
Dec 1, 1972·The Journal of Comparative Neurology·D H Hubel, T N Wiesel
Sep 1, 1972·Medical & Biological Engineering·E G Merrill, A Ainsworth
Mar 1, 1984·Proceedings of the National Academy of Sciences of the United States of America·S K McConnell, S LeVay
Dec 1, 1983·Journal of Neurophysiology·J L Conway, P H Schiller
Nov 25, 1982·Nature·S LeVay, S K McConnell
Jan 1, 1953·Journal of Neurophysiology·S W KUFFLER

❮ Previous
Next ❯

Citations

Apr 12, 2002·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Jon H Kaas, Kenneth C Catania
Apr 12, 2000·Progress in Neurobiology·H Nakagawa, N Matsumoto
Jan 1, 1997·Brain Research Bulletin·J H Kaas
Mar 1, 1991·Visual Neuroscience·P J DeMarco, M K Powers
Jan 1, 1996·Eye·V A Casagrande, J D Boyd
Dec 18, 2007·Nature Neuroscience·Jianzhong Z JinJose-Manuel Alonso
Jan 1, 1990·Proceedings of the National Academy of Sciences of the United States of America·D Fitzpatrick, D Raczkowski
Feb 8, 2003·Journal of Neurophysiology·W Martin UsreyBarbara Chapman
Jul 12, 2013·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Stephen D Van HooserDavid Fitzpatrick
Sep 25, 2015·The Journal of Comparative Neurology·Dmitry FamiltsevMartha E Bickford
Jun 15, 1991·The Journal of Comparative Neurology·A UngersböckG Rager
May 23, 2009·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Peiyan Wong, Jon H Kaas
Jul 14, 2006·The European Journal of Neuroscience·Ulrich DrenhausRobert Kretz
Nov 25, 2014·Nature Neuroscience·Yushi WangJose M Alonso
Jun 9, 2016·The Journal of Comparative Neurology·Toru Takahata, Jon H Kaas
Nov 18, 2015·PLoS Computational Biology·Manuel SchottdorfFred Wolf
Jul 20, 2004·Nature Neuroscience·François MooserDavid Fitzpatrick
Jun 2, 2018·Annual Review of Vision Science·Jens Kremkow, Jose-Manuel Alonso
Dec 22, 1987·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·J D Pettigrew, B Dreher
Apr 2, 2019·Frontiers in Neural Circuits·Yanbo LianAnthony N Burkitt
Dec 15, 1990·The Journal of Comparative Neurology·D Raczkowski, D Fitzpatrick
May 1, 1992·The Journal of Comparative Neurology·W M UsreyD Fitzpatrick

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

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.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections 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.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

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.

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.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation 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.

Microbicide

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.