PMID: 3756542Jul 1, 1986Paper

Visual cortex controls retinal output in the rat

Brain Research Bulletin
S Molotchnikoff, F Tremblay

Abstract

The first objective of the present investigation was to shed more light on corticofugal influences on the retina by providing an analysis of the type and proportion of retinal ganglion cells that are affected by cooling the visual cortex in rats. The second question was to determine if the pretectum participates in functional cortico-retinal relationships. In urethane-anesthetized and paralyzed hooded rats, axonal activity of retinal ganglion cells was recorded with glass micropipettes at optic chiasm level. Units were classified as ON, OFF, suppressed-by-light and concentric. The visual cortex was inactivated by cooling its surface with a 4 mm2 steel probe using the Peltier effect. The pretectum was blocked with microinjections of 50 to 100 nanoliters of cobalt ions, lidocaine hydrochloride or KCl. The inactivations and recoveries at both sites were monitored by simultaneously recording evoked field potentials. Interrupting corticofugal impulses caused modifications of the evoked discharge pattern in all types of cells. The concentric type was the group least affected by cortical cooling. A common trend emerged suggesting that cooling of the visual cortex led to an enhancement of the initial evoked excitation. This was often f...Continue Reading

References

Jul 15, 1977·The Journal of Comparative Neurology·N Berman
Jul 15, 1979·The Journal of Comparative Neurology·F Scalia, V Arango
Apr 1, 1975·The Journal of Comparative Neurology·L A Benevento, J H Fallon
May 23, 1985·Neuroscience Letters·P V HooglandH J Groenewegen
Jan 1, 1973·Brain, Behavior and Evolution·C R Noback, F Mettler
Sep 25, 1965·Nature·R N BrookeT P Powell
Nov 27, 1970·Science·F A Miles
Jun 1, 1970·Vision Research·L D Partridge, J E Brown
Jul 1, 1966·Experimental Neurology·D N Spinelli, M Weingarten
Jan 1, 1980·Electroencephalography and Clinical Neurophysiology·V I Koroleva, J Bures
Jan 1, 1981·Experimental Brain Research·J G ParnavelasR A Burne
Jun 12, 1981·Neuroscience Letters·B Fritzsch, W Himstedt
Nov 20, 1981·Science·S O Ebbesson, D L Meyer
Jan 1, 1984·Experimental Brain Research·H Schnyder, H Künzle
Sep 19, 1983·Neuroscience Letters·H TerubayashiY Ibata
Jan 1, 1983·Journal of Neuroscience Research·S Molotchnikoff, F Tremblay
Jan 1, 1984·Experimental Brain Research·S MolotchnikoffF Lepore
Apr 10, 1982·The Journal of Comparative Neurology·R Lent
Aug 1, 1982·The Journal of Comparative Neurology·G Holstege, H Collewijn
Nov 17, 1980·Brain Research·S K Itaya
Apr 1, 1954·The Journal of Comparative Neurology·W J NAUTA, V M BUCHER
Sep 17, 1963·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·W M COWAN, T P POWELL

❮ Previous
Next ❯

Citations

Jan 1, 1989·Vision Research·S MolotchnikoffC Casanova
Sep 1, 1990·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·M T Oakley, R G Eason
Aug 1, 1993·Progress in Neurobiology·J D Cooper, O T Phillipson
Sep 1, 1989·Visual Neuroscience·H Uchiyama
Feb 1, 1991·Experimental Eye Research·R A Bush, T P Williams
Sep 1, 1992·Experimental Eye Research·J L Schremser, T P Williams
Mar 18, 2016·Journal of Neurophysiology·Xiaolan TangChristopher L Passaglia

❮ 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.