Results 251 to 260 of about 861,931 (295)
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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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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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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
American journal of optometry and physiological optic, 1984ABSTRACT The 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.
J V, Lovasik, R, Wiggins
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The effect of convergence on the vestibulo-ocular reflex and implications for perceived movement
Vision Research, 1982The apparent motion of a fixated stimulus during head translation in the dark was found to depend on the magnitude of the vestibulo-ocular reflex (VOR). Absolute convergence level determines VOR magnitude and thereby influences apparent motion during head movement by determining the magnitude and direction of the pursuit effort required to maintain ...
R B, Post, H W, Leibowitz
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The ocular dominance of cortical neurons in cats developed with divergent and convergent squint
Vision Research, 1975Abstract In five normal cats, 70.7% of the neurons recorded from the visual cortex responded to binocular stimulation; only 27.2% of the neurons in 12 cats raised with convergent squint and 63.6% of neurons in four cats with divergent squint displayed binocularity.
U. Yinon +3 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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A History of Concussion Does Not Lead to an Increase in Ocular Near Point of Convergence
International Journal of Sports Medicine, 2018AbstractOcular near point of convergence (NPC) has been shown to be sensitive to the effects of concussion and subconcussive impacts. To determine if NPC is also sensitive to a previous history of concussion, male contact-sport athletes either with (n=26) or without (n=16) a history of at least one previous concussion had their NPC assessed.
Paul, van Donkelaar +3 more
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Convergent genetic pathways linking neuropsychiatric and ocular disorders in children
Journal of Child Psychology and PsychiatryBackground Clinical and epidemiological studies conducted in children have suggested a potential link between neuropsychiatric and ocular disorders. However, the existence and directionality of this relationship remain inconsistent, likely due to the complex interplay between genetic predisposition and ...
Meng Pan +7 more
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OCULAR CONVERGENCE: ITS RELATION TO BASAL METABOLISM AND ENDOCRINE DISEASE
Archives of Ophthalmology, 1931In 1891, Mobius 1 pointed out that unilateral convergence is normal in exophthalmic goiter, but that in spite of muscular palsy or mechanical interference due to extreme protrusion of the eyeballs the act of binocular convergence is diminished. In all modern textbooks relating to general medicine, the endocrine glands, ophthalmology or neurology ...
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