Journal ArticleDOI
The proprioceptive representation of eye position in monkey primary somatosensory cortex.
TLDR
A representation of eye position is demonstrated in monkey primary somatosensory cortex, in the representation of the trigeminal nerve, near cells with a tactile representations of the contralateral brow, which represents the position of the eye in the head and not the angle of gaze in space.Abstract:
The cerebral cortex must have access to an eye position signal, as humans can report passive changes in eye position in total darkness, and visual responses in many cortical areas are modulated by eye position. The source of this signal is unknown. Here we demonstrate a representation of eye position in monkey primary somatosensory cortex, in the representation of the trigeminal nerve, near cells with a tactile representation of the contralateral brow. The neurons have eye position signals that increase monotonically with increasing orbital eccentricity from near the center of gaze, with directionally selectivity tuned in a Gaussian manner. All directions of eye position are represented in a single hemisphere. The signal is proprioceptive, because it can be obliterated by anesthetizing the contralateral orbit. It is not related to foveal or peripheral visual stimulation, and it represents the position of the eye in the head and not the angle of gaze in space.read more
Citations
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Journal ArticleDOI
Neuronal mechanisms of visual stability
TL;DR: This review considers the substantial advances in understanding the neuronal mechanisms underlying this visual stability derived primarily from neuronal recording and inactivation studies in the monkey, an excellent model for systems in the human brain.
Journal ArticleDOI
Brain Circuits for the Internal Monitoring of Movements
Marc A. Sommer,Robert H. Wurtz +1 more
TL;DR: A candidate pathway for providing CD for vision ascends from the superior colliculus to the frontal cortex in the primate brain and conveys warning signals about impending eye movements that are used for planning subsequent movements and analyzing the visual world.
Journal ArticleDOI
Eye movements and perception: a selective review.
TL;DR: It is argued that, like for many other aspects of vision, several different circuits related to salience, object recognition, actions, and value ultimately interact to determine gaze behavior.
Journal ArticleDOI
Forward estimation of movement state in posterior parietal cortex
TL;DR: In this paper, the posterior parietal cortex (PPC) was used to encode the static target direction and the dynamic movement angle of the cursor, which is consistent with PPC serving as a forward model for online sensorimotor control.
OtherDOI
Neural Basis of Touch and Proprioception in Primate Cortex.
TL;DR: This review examines briefly the receptors that mediate touch and proprioception, their associated nerve fibers, and pathways they follow to the cerebral cortex, and discusses how various features of objects are encoded in the various cortical fields and the susceptibility of these neural codes to attention and other forms of higher-order modulation.
References
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Journal ArticleDOI
The updating of the representation of visual space in parietal cortex by intended eye movements.
TL;DR: Parietal cortex both anticipates theretinal consequences of eye movements and updates the retinal coordinates of remembered stimuli to generate a continuously accurate representation of visual space.
Journal ArticleDOI
Implantation of magnetic search coils for measurement of eye position: an improved method.
Journal ArticleDOI
A back-propagation programmed network that simulates response properties of a subset of posterior parietal neurons.
David Zipser,Richard A. Andersen +1 more
TL;DR: A neural network model, programmed using back-propagation learning, can decode spatial information from area la neurons and accounts for their observed response properties.
Journal ArticleDOI
Neuronal Activity in the Lateral Intraparietal Area and Spatial Attention
TL;DR: Attention is tracked in the monkey and the activity of neurons in the lateral intraparietal area (LIP) is correlated with the monkey's attentional performance, revealing the spatial and temporal dynamics of a monkeys attention.
Journal ArticleDOI
The influence of the angle of gaze upon the excitability of the light- sensitive neurons of the posterior parietal cortex
TL;DR: Evidence supports the interpretation that the effect is produced by a central influence of the systems controlling directed visual attention and the angle of gaze upon those linking the retinae to the parietal lobe.
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