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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Clustering of response selectivity in the medial superior temporal area of extrastriate cortex in the macaque monkey.
TL;DR: The existence of clustered organization in the medial superior temporal area (MST) of the dorsal stream, which is arguably the highest dominantly visual area on this pathway, supports the importance of this area in the processing of optic flow information.
Journal ArticleDOI
Effect of contrast and adaptation on the perception of the direction and speed of drifting gratings.
Rolf Müller,Mark W. Greenlee +1 more
TL;DR: The results indicate that, before adaptation, direction and speed discrimination thresholds are independent of test contrast, except when test contrast approaches the detection threshold level.
Journal ArticleDOI
The Ouchi illusion as an artifact of biased flow estimation.
TL;DR: It is explained that the cause of the illusion lies in the statistical difficulty of integrating local one-dimensional motion signals into two-dimensional image velocity measurements, and the process of optical flow computations should not be carried out in isolation but in conjunction with the higher level processes of 3D motion estimation, segmentation and shape computation.
Journal ArticleDOI
Directional anisotropies reveal a functional segregation of visual motion processing for perception and action.
TL;DR: The data support the hypothesis that, at least for visual motion, perception and action are guided by inputs from separate sensory streams, and the directional anisotropy of perception appears to originate after the two streams have segregated and downstream from area MT.
Journal ArticleDOI
The Influence of Sustained Selective Attention on Stimulus Selectivity in Macaque Visual Area MT
TL;DR: S sustained attention seems to stabilize direction selectivity of neurons in area MT against a time and competition-dependent degradation, whereas nonattended objects suffer from a reduced neuronal representation.
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.