Journal ArticleDOI
Functional properties of neurons in middle temporal visual area of the macaque monkey. I. Selectivity for stimulus direction, speed, and orientation
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
Citations
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Journal ArticleDOI
Properties of pattern and component direction-selective cells in area MT of the macaque.
TL;DR: Analysis of the responses of 792 MT cells recorded in the course of other experiments, as a function of the direction, spatial frequency, drift rate, size, and contrast of sinusoidal gratings and of thedirection and speed of random-dot textures finds pattern-selective signals are available in association with most other signals exported by MT.
Journal ArticleDOI
Spatially-tuned normalization explains attention modulation variance within neurons.
TL;DR: It is shown directly that attention modulation and normalization tuning do in fact covary within individual neurons, in addition to across neurons as previously demonstrated, and a new spatially tuned normalization model is provided that explains this broad range of observed normalization and attention effects.
Journal ArticleDOI
The virtue of simplicity.
Tao Zhang,Kenneth H. Britten +1 more
TL;DR: An elegant and simple solution to the problem of determining the direction of object motion, eminently realizable in feed-forward circuits is proposed.
Journal ArticleDOI
Computing feature motion without feature detectors : A model for terminator motion without end-stopped cells
Gunter Loffler,Harry S. Orbach +1 more
TL;DR: In this article, a model based on ordinary simple cells, using two parallel pathways (Fourier and non-fourier) for the computation of the direction of two dimensional motion is presented.
Journal ArticleDOI
Visual information process in Williams syndrome: intact motion detection accompanied by typical visuospatial dysfunctions
TL;DR: It is considered that the visuospatial cognitive deficits in WMS are caused by a restricted dysfunction of the neural groups for position and three‐dimensional form perceptions in the dorsal stream of the visual system, though other possibilities are not excluded.
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.