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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TLDR
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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Visually Evoked Responses in Extrastriate Area MT after Lesions of Striate Cortex in Early Life
Hsin-Hao Yu,Tristan A. Chaplin,Gregory Egan,David H. Reser,Katrina H. Worthy,Marcello G. P. Rosa +5 more
TL;DR: It is demonstrated that lesion-induced reorganization of afferent pathways is sufficient to develop robust visual function in primate extrastriate cortex, highlighting a likely mechanism for the sparing of vision after neonatal V1 lesions and suggesting that interactions with V1 in early postnatal life are critical for establishing stimulus selectivity in MT.
Journal ArticleDOI
Decision-related activity in the macaque dorsal visual pathway.
TL;DR: The data suggest that activity reduction on error trials is due to lack of attention in association with stimulus expectation, which is reduced in early visual processing, independent of the hierarchy in the dorsal visual pathway.
Journal ArticleDOI
Motion contrast and motion integration
TL;DR: In this paper, the authors used a moving circular patch of sinusoidal grating matched to the background in mean luminance and found that the perception of aperture movement is strongly affected by the grating movement.
Journal ArticleDOI
Contribution of Individual Retinal Ganglion Cell Responses to Velocity and Acceleration Encoding
TL;DR: Combined velocity/acceleration sensitivity enhances the similarity of artificial spike trains to experimental data by 50% compared with the case of pure velocity tuned, indicating that RGC ensembles signal both properties simultaneously.
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.
Journal ArticleDOI
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.