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
Cortical mechanisms for trans-saccadic memory and integration of multiple object features
TL;DR: This paper reviews this literature on trans-saccadic perception with a focus on research showing that egocentric measures of the saccadic eye movement can be used to integrate simple object features across saccades, and that the memory capacity for items retained across sAccades, like visual working memory, is restricted to about three to four items.
Journal ArticleDOI
The Duncker illusion and eye-hand coordination.
TL;DR: A model of limb control in which gaze position can provide the target signal for limb movement is suggested, in which saccadic direction is influenced by the Duncker illusion but hand-pointing errors are more highly correlated with final gaze errors.
Journal ArticleDOI
Been there, seen that: a neural mechanism for performing efficient visual search.
TL;DR: All the neural activity required to guide efficient search is present in the lateral intraparietal area (LIP), and it is proposed that LIP plays a significant role in the guidance of efficient visual search.
Book ChapterDOI
The analysis of visual space by the lateral intraparietal area of the monkey: the role of extraretinal signals.
TL;DR: Analysis of the population of LIP neurons reveals that the great majority of cells give an enhanced response when the stimulus is of importance to the monkey, and three conclusions are derived.
Journal ArticleDOI
Near-optimal integration of orientation information across saccades.
TL;DR: It is found that humans perform best when an oriented target is visible both before (peripherally) and after a saccade (foveally), suggesting that humans integrate the two views.
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.