Journal ArticleDOI
Functional properties of neurons in middle temporal visual area of the macaque monkey. I. Selectivity for stimulus direction, speed, and orientation
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The presence of both direction and speed selectivity in MT of the macaque suggests that this area is more specialized for the analysis of visual motion than has been previously recognized.Abstract:
1. Recordings were made from single units in the middle temporal visual area (MT) of anesthetized, paralyzed macaque monkeys. A computer-driven stimulator was used to make quantitative tests of sel...read more
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Dissociation of object and spatial vision in human extrastriate cortex: Age-related changes in activation of regional cerebral blood flow measured with [15 o]water and positron emission tomography
Cheryl L. Grady,James V. Haxby,Barry Horwitz,Mark B. Schapiro,Stanley I. Rapoport,Leslie G. Ungerleider,Mortimer Mishkin,Richard E. Carson,Peter Herscovitch +8 more
TL;DR: Results show less functional separation of the dorsal and ventral visual pathways in older subjects, and may reflect an age-related reduction in the processing efficiency of these visual cortical areas.
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Thalamic pathways for active vision
TL;DR: This review summarizes recent work on four thalamic nuclei of the thalamus that convey internal information about upcoming saccades (a corollary discharge) and probably contribute to the neuronal mechanisms that underlie stable visual perception.
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The central visual system
TL;DR: Today neuroscience is a wideranging discipline using a multitude of methods; it spans the study of the brain from mind to molecule and studies of the visual system have played a major role in its growth.
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Shared motion signals for human perceptual decisions and oculomotor actions.
TL;DR: Examination of the trial-by-trial variation in human perceptual and pursuit responses during a simultaneous psychophysical and oculomotor task reveals that the direction signals for pursuit and perception are not only similar on average but also co-vary on a trial- by-trial basis, even when performance is at or near chance and the decisions are determined largely by neural noise.
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An Integrated Microcircuit Model of Attentional Processing in the Neocortex
TL;DR: A biophysically based network model of spiking neurons composed of a reciprocally connected loop of two (sensory and working memory) networks is investigated, suggesting a canonical neural circuit for feature-based attentional processing in the cortex.
References
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Journal ArticleDOI
Receptive fields and functional architecture of monkey striate cortex
David H. Hubel,Torsten N. Wiesel +1 more
TL;DR: The striate cortex was studied in lightly anaesthetized macaque and spider monkeys by recording extracellularly from single units and stimulating the retinas with spots or patterns of light, with response properties very similar to those previously described in the cat.
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Silver Staining of Myelin by Means of Physical Development
TL;DR: For staining myelin with silver a physical development technique has been devised that can render visible the thinnest fibers in various animal species, including fishes and reptiles, even in the early phase of myelination and may be applied to both frozen and embedded materials.