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
Citations
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What can we expect from a V1-MT feedforward architecture for optical flow estimation?
TL;DR: A classical V1-MT neural model can be adapted to handle real sequences and is benchmarked on a Middlebury dataset, providing a baseline for future developments of bio-inspired scalable computer vision algorithms.
Journal ArticleDOI
Neuroimaging Evidence for 2 Types of Plasticity in Association with Visual Perceptual Learning
TL;DR: Empirical evidence is provided that VPL of motion detection is associated with both types of plasticity which occur predominantly in different brain areas and therefore have separate mechanisms at least to some degree.
Journal ArticleDOI
Neuronal Responses during and after the Presentation of Static Visual Stimuli in Macaque Primary Visual Cortex
TL;DR: It is suggested that the perceptual phenomena of fading and afterimages are shaped by both cortical and subcortical dynamics and provide a physiological framework for the interpretation of recent and long-standing psychophysical observations.
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A Single Mechanism Can Explain the Speed Tuning Properties of MT and V1 Complex Neurons
TL;DR: The weighted intersection mechanism (WIM) model, which was previously proposed to explain speed tuning in middle temporal neurons, can also explain the tuning found in complex V1 neurons and is able to replicate the effects of contrast on V1 speed tuning.
Journal ArticleDOI
Visual aftereffects:Cortical neurons change their tune
TL;DR: Exposure to a stimulus can change the contrast sensitivity of cells and shift their peak sensitivity to a new orientation or movement direction, and these shifts can correctly predict illusory changes - visual aftereffects - in movement direction in V1, but in MT they are more difficult to interpret.
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.