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
Self-organizing neural networks for perception of visual motion
TL;DR: A new approach to the aperture problem is presented, using an adaptive neural network model that accommodates its structure to long-term statistics of visual motion, but also simultaneously uses its acquired structure to assimilate, disambiguate, and represent visual motion events in real-time.
Journal ArticleDOI
Transcranial magnetic stimulation differentially affects speed and direction judgments.
TL;DR: The present data suggest a double dissociation between speed and direction discrimination in humans, which suggests that the sensory response constraining speed discrimination is at least partially independent from the sensoryresponse constraining direction discrimination.
Journal ArticleDOI
A Neural Model of Smooth Pursuit Control and Motion Perception by Cortical Area MST
TL;DR: In this paper, a neural model was proposed to account for the ability of primates to maintain fixation on a moving target using smooth pursuit eye movements (SPEMs) by simulating the neurophysiological properties of cell types found in the superior temporal sulcus of the macaque monkey.
Journal ArticleDOI
Seeing the Big Picture: Integration of Image Cues in the Primate Visual System
TL;DR: Evidence indicates that motion direction can chromatic cues, the existing data suggests, also be perceived in a qualitatively invariant manner and can be accounted for by simple pooling of re-across a range of other contrast cues, such as spatial sponses arising from the so-called M pathway.
Journal ArticleDOI
Blindsight and visual awareness
Paul Azzopardi,Alan Cowey +1 more
TL;DR: The results explain why patients with blindsight are apparently more often "aware" of moving stimuli than of static stimuli, and imply that blindsight is unlike normal vision near threshold, and that pattern- and motion-detection in blindsight may depend on different sets of neural mechanisms during yes-no and forced-choice tests.
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.