PMID: 589454Dec 2, 1977

Visual function in goldfish with unilateral and bilateral tectal ablation

Brain Research
D YagerB G Grover

Abstract

Following complete bilateral tectal ablation, the ability to detect light recovers in about three weeks. The non-tectal retinal connections which may mediate detection are about one log unit less sensitive than the retinotectal connections. At moderate illumination levels, tectumless fish do not react visually to objects. Tectumless fish integrate luminous flux over a very wide area (at least 25 degrees diameter) while the critical diameter for the normal in this experiment is smaller. Subcortical structures may mediate the interocular transfer of a brightness discrimination. The ipsilateral retinotectal projection following unilateral tectal removal is functional, with normal sensitivity to detection of light.

References

Jan 1, 1973·Vision Research·W N Charman, J Tucker
Mar 1, 1968·The Journal of Physiology·S S Easter
Jan 1, 1963·Journal of the Optical Society of America·H G WAGNERM L WOLBARSHT
Feb 1, 1965·The Journal of Comparative Neurology·H O SCHWASSMAN, L KRUGER

Citations

Dec 1, 1990·Cell and Tissue Research·S D SchlussmanS C Sharma
Dec 1, 1985·Behavioural Brain Research·B E Schlumpf, R E Davis
Sep 1, 1987·Behavioural Brain Research·R E Davis, P D Klinger
Dec 31, 2002·Vision Research·Hans Maaswinkel, Lei Li
Sep 12, 2015·Journal of Neurophysiology·Chie UmataniYoshitaka Oka
Mar 1, 1981·The Journal of Comparative Neurology·B G Grover, S C Sharma

Related Concepts

Conditioned Reflex
Dace
Weber-Fechner Law
Feeding Patterns
Goldfish
Retina
Optic Lobe, Human
Visual Perception

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.

Alzheimer's Disease: MS4A

Variants within the membrane-spanning 4-domains subfamily A (MS4A) gene cluster have recently been implicated in Alzheimer's disease in genome-wide association studies. Here is the latest research on Alzheimer's disease and MS4A.

Pediculosis pubis

Pediculosis pubis is a disease caused by a parasitic insect known as Pthirus pubis, which infests human pubic hair, as well as other areas with hair including eye lashes. Here is the latest research.

Rh Isoimmunization

Rh isoimmunization is a potentially preventable condition that occasionally is associated with significant perinatal morbidity or mortality. Discover the latest research on Rh Isoimmunization here.

Genetic Screens in iPSC-derived Brain Cells

Genetic screening is a critical tool that can be employed to define and understand gene function and interaction. This feed focuses on genetic screens conducted using induced pluripotent stem cell (iPSC)-derived brain cells. It also follows CRISPR-Cas9 approaches to generating genetic mutants as a means of understanding the effect of genetics on phenotype.

Enzyme Evolution

This feed focuses on molecular models of enzyme evolution and new approaches (such as adaptive laboratory evolution) to metabolic engineering of microorganisms. 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.

Pharmacology of Proteinopathies

This feed focuses on the pharmacology of proteinopathies - diseases in which proteins abnormally aggregate (i.e. Alzheimer’s, Parkinson’s, etc.). Discover the latest research in this field with this feed.

Alignment-free Sequence Analysis Tools

Alignment-free sequence analyses have been applied to problems ranging from whole-genome phylogeny to the classification of protein families, identification of horizontally transferred genes, and detection of recombined sequences. Here is the latest research.