Journal ArticleDOI
The updating of the representation of visual space in parietal cortex by intended eye movements.
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TLDR
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.Abstract:
Every eye movement produces a shift in the visual image on the retina. The receptive field, or retinal response area, of an individual visual neuron moves with the eyes so that after an eye movement it covers a new portion of visual space. For some parietal neurons, the location of the receptive field is shown to shift transiently before an eye movement. In addition, nearly all parietal neurons respond when an eye movement brings the site of a previously flashed stimulus into the receptive field. Parietal cortex both anticipates the retinal consequences of eye movements and updates the retinal coordinates of remembered stimuli to generate a continuously accurate representation of visual space.read more
Citations
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Journal ArticleDOI
A circuit for saccadic suppression in the primate brain.
TL;DR: A complete circuit originating with corollary discharge signals in SCi that produces suppression in visual SCs, PI, and ultimately, MT cortex is proposed, concluding that this circuit contributes to neuronal suppression of visual signals during eye movements.
Journal ArticleDOI
A Role for the Parietal Cortex in Sensorimotor Adaptation of Saccades
Muriel Panouillères,Ouazna Habchi,Peggy Gerardin,Romeo Salemme,Christian Urquizar,Alessandro Farnè,Denis Pélisson +6 more
TL;DR: The hypothesis that the adaptation of VSs and RSs involves different neuronal substrates is supported, as direct evidence for a causal involvement of the parietal cortex in saccadic adaptation is provided.
Journal ArticleDOI
Time course of cross-hemispheric spatial updating in the human parietal cortex.
Christian Bellebaum,Irene Daum +1 more
TL;DR: The present study aimed to elucidate the time course of the updating process of human parietal cortex, in which a filled circle was shown before a horizontal saccade, requiring updating of stimulus location, and a control task without visual stimulation before the saccades.
Journal ArticleDOI
Development of localized oriented receptive fields by learning a translation-invariant code for natural images
Rajesh P. N. Rao,Dana H. Ballard +1 more
TL;DR: It is shown that a strategy for transformation-invariant coding of images based on a first-order Taylor series expansion of an image also causes localized, oriented receptive fields to be learned from natural image inputs.
Journal ArticleDOI
Receptive field positions in area MT during slow eye movements.
TL;DR: The results show that RFs of MT neurons and the aggregate activity reflected in local field potentials are yoked to the eye during slow eye movements, which implies that individual MT neurons do not integrate sensory information from a single position in the world across eye movements.
References
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Book
Treatise on Physiological Optics
H. von Helmholtz,P. C. Southall +1 more
TL;DR: A composite thin film resistor is disclosed, including an electrically inert substrate upon which is deposited a nickel-chromium alloy thin film, and an overlying second thin film - which is initially deposited as metallic tantalum - which provides a very high degree of environmental protection with respect to the Ni-Cr film.
Journal ArticleDOI
Memory related motor planning activity in posterior parietal cortex of macaque.
J. W. Gnadt,Richard A. Andersen +1 more
TL;DR: Unit recording studies in the lateral bank of the intraparietal cortex (area LIP) have demonstrated a response property not previously reported in posterior cortex, which appears to represent a memory-related motor-planning signal encoding motor error in the Rhesus monkey.
Journal ArticleDOI
Behavioral enhancement of visual responses in monkey cerebral cortex. I. Modulation in posterior parietal cortex related to selective visual attention
TL;DR: It is suggested that the role of area 7 in visual attention may be mediated by the enhancement of visual responses to selected stimuli, which resembles the psychological phenomenon of selective spatial attention.
Journal ArticleDOI
Parietal association cortex in the primate: sensory mechanisms and behavioral modulations
Journal ArticleDOI
Eye position effects on visual, memory, and saccade-related activity in areas LIP and 7a of macaque
TL;DR: The present results indicate that this modulating effect of eye position may be a general one, as it is found in 3 types of responses in 2 cortical areas, and it is proposed that these eye position effects play an important role in making coordinate transformations for visually guided movement.