Results 251 to 260 of about 35,820 (279)
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Canal-Otolith Convergence on Cat Ocular Motoneurons
1979Publisher Summary This chapter demonstrates the central processing of otolithic information, by comparing motoneuron output with primary otolith input. It focuses on the importance of canal-otolith convergence for extending the frequency response characteristics of motoneurons involved primarily, but not exclusively, in vertical/rotatory eye ...
W, Precht, J H, Anderson, R H, Blanks
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Extrastriate cortical neurons correlated with ocular convergence in the cat
Neuroscience Research, 1993Responses of neurons in the lateral suprasylvian area to visual stimulation in association with ocular convergence were studied in eight alert cats trained to track a visual target moving in depth. Activities of 18 (3%) of 659 cells were related to ocular convergence.
M, Takagi, H, Toda, T, Bando
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Abducens internuclear neurons carry an inappropriate signal for ocular convergence
Journal of Neurophysiology, 19891. Single-unit recording studies in alert Rhesus monkeys characterized the vergence signal carried by abducens internuclear neurons. These cells were identified by antidromic activation and the collision of spontaneous with antidromic action potentials.
P D, Gamlin, J W, Gnadt, L E, Mays
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Cortical Indices of Impaired Ocular Accommodation and Associated Convergence Mechanisms
Optometry and Vision Science, 1984The accommodative and fusional vergence mechanisms were examined electrophysiologically in a juvenile suffering from a severe reduction in focusing ability. We used the visually evoked response (VER) to diagnose the accommodation-vergence insufficiency. The procedure is shown to be effective for monitoring longitudinally the ability of simple orthoptic
J V, Lovasik, R, Wiggins
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Otology & Neurotology, 2020
Hypothesis: Vestibulo-ocular reflex (VOR) response measures during convergence, which are clinically important to measure peripheral vestibular organ function during rotational and translational rapid head movements, can be implemented using existing clinically available monocular video-oculography (VOG) systems.
Figtree, William V. C. +2 more
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Hypothesis: Vestibulo-ocular reflex (VOR) response measures during convergence, which are clinically important to measure peripheral vestibular organ function during rotational and translational rapid head movements, can be implemented using existing clinically available monocular video-oculography (VOG) systems.
Figtree, William V. C. +2 more
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Journal of Receptors and Signal Transduction, 2014
Atherosclerosis is a life-threatening disease and a major cause of mortalities worldwide. While many of the atherosclerotic sequelae are reflected as microvascular effects in the eye, the molecular mechanisms of their development is not yet known.
Akanksha, Gupta +2 more
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Atherosclerosis is a life-threatening disease and a major cause of mortalities worldwide. While many of the atherosclerotic sequelae are reflected as microvascular effects in the eye, the molecular mechanisms of their development is not yet known.
Akanksha, Gupta +2 more
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Ocular convergence-related neuronal responses in the lateral suprasylvian area of alert cats
Neuroscience Research, 1992Neuronal spike discharges were recorded from the lateral suprasylvian (LS) area while ocular convergence was elicited in five alert cats. Ocular convergence was elicited by presenting a visual target moving in depth. Cats were rewarded for convergence eye movement. In 9 out of 426 cells sampled in the caudal postero-medial LS area, the number of spikes
M, Takagi +6 more
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Electroencephalography and Clinical Neurophysiology, 1971
Abstract Visually evoked cortical responses and visual acuity were investigated as a function of changes in accommodation (accommodation stimuli of 0, −1.25, −2.50 and −5.0 diopters) and convergence (convergence stimuli of 0, −4, −8 and −16 prism diopters). The effects of convergence on both evoked response amplitude and visual acuity depended on the
M R, Harter, L E, Salmon
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Abstract Visually evoked cortical responses and visual acuity were investigated as a function of changes in accommodation (accommodation stimuli of 0, −1.25, −2.50 and −5.0 diopters) and convergence (convergence stimuli of 0, −4, −8 and −16 prism diopters). The effects of convergence on both evoked response amplitude and visual acuity depended on the
M R, Harter, L E, Salmon
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Effect of Repetitive Sub-concussive Head Impacts on Ocular Near Point of Convergence
International Journal of Sports Medicine, 2016This study intended to examine effects of repetitive sub-concussive head impacts on ocular near point of convergence (NPC). 20 healthy young adult soccer players were assigned to either a heading or control group. Heading subjects completed 10 headers of soccer balls projected at a speed of 11.2 m/s. Control subjects did not perform heading.
K, Kawata +3 more
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Total Synthesis of the Ocular Age Pigment A2-E: A Convergent Pathway
Journal of the American Chemical Society, 1997The autofluorescent age pigments (lipofuscin) which accumulate in the human retinal pigment epithelium (RPE) cells with age are considered to be responsible for causing various eye diseases including age-related macular degeneration (AMD), the leading cause of blindness in elderly people for which no remedy exists.1 The prevalence associated with AMD ...
Rex X.-F. Ren +2 more
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