Results 71 to 80 of about 6,807 (176)

Secondary post-geniculate involvement in Leber's hereditary optic neuropathy.

open access: yesPLoS ONE, 2012
Leber's hereditary optic neuropathy (LHON) is characterized by retinal ganglion cell (RGC) degeneration with the preferential involvement of those forming the papillomacular bundle. The optic nerve is considered the main pathological target for LHON. Our
Giovanni Rizzo   +13 more
doaj   +1 more source

Illuminating the Neural Circuits Underlying Orienting of Attention

open access: yesVision, 2019
Human neuroimaging has revealed brain networks involving frontal and parietal cortical areas as well as subcortical areas, including the superior colliculus and pulvinar, which are involved in orienting to sensory stimuli.
Michael I. Posner, Cristopher M. Niell
doaj   +1 more source

Medio-dorsal thalamus and confabulations: Evidence from a clinical case and combined MRI/DTI study

open access: yesNeuroImage: Clinical, 2016
The Medio-Dorsal Nuclei (MDN) including the thalamic magnocellular and parvocellular thalamic regions has been implicated in verbal memory function. In a 77 year old lady, with a prior history of a clinically silent infarct of the left MDN, we observed ...
Valeria Onofrj   +7 more
doaj   +1 more source

CERTIFICATION OF COLOUR VISION IN CHILD

open access: yesZdravniški Vestnik, 2004
Background. Studies have shown that chromatic information of visual stimulus is conducted and analysed in two major pathways, parvocellular (also named red-green pathway) and koniocellular (also named blue-yellow pathway).
Manca Tekavčič Pompe   +2 more
doaj  

Pattern visual evoked potentials in dyslexic children

open access: yesJournal of Ophthalmic & Vision Research, 2017
Purpose: This study aimed to compare pattern visual evoked potential (PVEP) components in dyslexic and normal children. Methods: This cross-sectional analytic study recruited 72 children, including 36 dyslexic and 36 normal participants aged 8-12 years ...
Javad Heravian Shandiz   +8 more
doaj   +1 more source

Arginine-Vasotocin Neuronal System in Steindachneridion parahybae (Siluriformes: Pimelodidae) and Its Influence on Artificially Induced Spawning in Captivity

open access: yesFishes
This study summarizes new data on induced spawning of Steindachneridion parahybae, focusing on the aggressive behavior of females. This study characterizes the vasotocinergic system using immunohistochemistry, highlighting the potential influence of ...
Renato M. Honji   +6 more
doaj   +1 more source

What Does Visual Cortical Physiology of Neurotypical Populations Tell Us about the WCC and EPF Theories of Autism?

open access: yesi-Perception, 2012
The signs of autism spectrum disorders (ASD)—lack of social communication, fixation, and repetitive action have to include visual perceptual abnormalities.
David P Crewther
doaj   +1 more source

ASYMMETRY IN REGARD TO THE EFFECTS OF MAGNOCELLULAR AND PARVOCELLULAR LESIONS

open access: yes, 2021
The placing of lesions in the magno- and parvocellular layers of the Lateral Geniculate Nucleus (LGN) of the visual stream has been used in attempts to assess the contributions of the two systems to various visual tasks. However, because there are about ten times as many parvocellular cells as magnocellular cells a lesion blocking the parvocellular ...
openaire   +2 more sources

VGLUT2 mRNA and protein expression in the visual thalamus and midbrain of prosimian galagos (Otolemur garnetti)

open access: yesEye and Brain, 2011
Pooja Balaram1, Toru Takahata1, Jon H Kaas1,21Department of Psychology, 2Department of Cell and Molecular Biology, Vanderbilt University, Nashville, TN, USAAbstract: Vesicular glutamate transporters (VGLUTs) control the storage and presynaptic release of
Pooja Balaram, Toru Takahata, Jon H Kaas
doaj  

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