Results 41 to 50 of about 200,890 (206)

A contribution to the study of the afferents to the pigeon optic tectum [PDF]

open access: yesAnatomy and Embryology, 1982
The origins of several afferent pathways to the pigeon's tectum were studied using the horseradish peroxidase tracing technique. The results confirm the presence of several previously described afferents, and add further data on intertectal and hyperstriatofugal projections.
Delius, Juan, Mestres, Pedro
openaire   +3 more sources

Cell proliferation and apoptosis in optic nerve and brain integration centers of adult trout Oncorhynchus mykiss after optic nerve injury

open access: yesNeural Regeneration Research, 2016
Fishes have remarkable ability to effectively rebuild the structure of nerve cells and nerve fibers after central nervous system injury. However, the underlying mechanism is poorly understood.
Evgeniya V Pushchina   +3 more
doaj   +1 more source

ELECTROPHYSIOLOGICAL INVESTIGATIONS ON THE PIGEON'S OPTIC TECTUM [PDF]

open access: yesQuarterly Journal of Experimental Physiology and Cognate Medical Sciences, 1971
Electrical responses of the cells at different depths of the pigeon's optic tectum to different visual stimuli were recorded.Point to point representation of the upper visual field on the dorsal surface of the tectum was obtained as a projection on a horizontal stereotaxic plane.Different units in the stratum griseum et fibrosum superficiale of the ...
openaire   +2 more sources

Effect of retinal ablation on the expression of calbindin D28k and GABA in the chick optic tectum

open access: yesEuropean Journal of Histochemistry, 2009
The effect of retinal ablation on qualitative and quantitative changes of calbindin D28k and GABA expression in the contralateral optic tectum was studied in young chicks.
G Díaz de Barboza   +4 more
doaj   +1 more source

Proteomic Analyses of Zebra Finch Optic Tectum and Comparative Histochemistry

open access: yes, 2007
Proteomic analyses of zebra finch (Taeniopygia guttata) optic tectum resulted in identification of 176 proteins. In the Swissprot database, only 52 proteins were identified as bird homologs and only 71 proteins were identified in songbird transcriptome ...
David F. Clayton (8660010)   +7 more
core   +2 more sources

HISTOLOGICAL STUDY ON OPTIC TECTUM IN IRAQI WATER SNAKE TESSELATA TESSELATA

open access: yesمجلة بغداد للعلوم
The   ceiling  of the  midbrain  has  a couple  of  optic  lobes  which  are  prominent  and  used  as  an  optic   center  that  reflex   what  it  receives  from   eye  retina   fibers.
N.A. Al –BAKRI   +1 more
doaj   +1 more source

Cerebellar output in zebrafish: an analysis of spatial patterns and topography in eurydendroid cell projections

open access: yesFrontiers in Neural Circuits, 2013
The cerebellum is a brain region responsible for motor coordination and for refining motor programs. While a great deal is known about the structure and connectivity of the mammalian cerebellum, fundamental questions regarding its function in behaviour ...
Lucy eHeap   +4 more
doaj   +1 more source

Neurogenesis of retinal ganglion cells is not essential to visual functional recovery after optic nerve injury in adult zebrafish. [PDF]

open access: yesPLoS ONE, 2013
Zebrafish central nervous system (CNS) possesses a strong neural regeneration ability to restore visual function completely after optic nerve injury (ONI).
Suqi Zou, Chen Tian, Shuchao Ge, Bing Hu
doaj   +1 more source

The Emergence of the Spatial Structure of Tectal Spontaneous Activity Is Independent of Visual Inputs

open access: yesCell Reports, 2017
Summary: The brain is spontaneously active, even in the absence of sensory stimulation. The functionally mature zebrafish optic tectum shows spontaneous activity patterns reflecting a functional connectivity adapted for the circuit’s functional role and ...
Thomas Pietri   +5 more
doaj   +1 more source

A genetic labeling system to study dendritic spine development in zebrafish models of neurodevelopmental disorders

open access: yesDisease Models & Mechanisms, 2022
Dendritic spines are the principal site of excitatory synapse formation in the human brain. Several neurodevelopmental disorders cause spines to develop abnormally, resulting in altered spine number and morphology.
Elisabeth C. DeMarco   +2 more
doaj   +1 more source

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