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Grasping Visual Illusions: No Evidence for a Dissociation Between Perception and Action
Neuropsychological studies prompted the theory that the primate visual system might be organized into two parallel pathways, one for conscious perception and one for guiding action. SupportingExpand
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Fast perceptual learning in visual hyperacuity.
TLDR
In many different spatial discrimination tasks, such as in determining the sign of the offset in avernier stimulus, the human visual system exhibits hyperacuity by evaluating spatial relations with the precision of a fraction of a photoreceptor's diameter. Expand
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Perceptual learning: specificity versus generalization
  • M. Fahle
  • Psychology, Medicine
  • Current Opinion in Neurobiology
  • 1 April 2005
Perceptual learning improves performance on many tasks, from orientation discrimination to the identification of faces. Although conventional wisdom considered sensory cortices as hard-wired, theExpand
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Specificity of learning curvature, orientation, and vernier discriminations
  • M. Fahle
  • Psychology, Medicine
  • Vision Research
  • 1 July 1997
Training significantly improves the performance of many perceptual tasks. Different visual tasks share some "front-end" neuronal mechanisms but rely (partly) on different neuronal mechanisms forExpand
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Perceptual learning: a case for early selection.
  • M. Fahle
  • Psychology, Medicine
  • Journal of vision
  • 26 October 2004
Perceptual learning is any relatively permanent change of perception as a result of experience. Visual learning leads to sometimes dramatic and quite fast improvements of performance in perceptualExpand
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Long-term learning in vernier acuity: Effects of stimulus orientation, range and of feedback
In hyperacuity, as in many other tasks, performance improves with practice. To better understand the underlying mechanisms, we measured thresholds of 41 inexperienced observers for the discriminationExpand
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Figure–ground discrimination from temporal information
  • M. Fahle
  • Geography, Medicine
  • Proceedings of the Royal Society of London…
  • 22 December 1993
The separation of figures from ground is achieved by the visual system based on differences in features such as luminance, colour, depth, orientation, texture or motion. Temporal information, namelyExpand
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The role of feedback in learning a vernier discrimination task
We compare improvement through training in vernier acuity under different feedback conditions in order to clarify the role of feedback during learning of a perceptual task and to test differentExpand
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Effects of visual illusions on grasping.
In 2 experiments, the Muller-Lyer illusion (F. C. Muller-Lyer, 1889; N = 16) and the parallel-lines illusion (W. Wundt, 1898; N = 26) clearly affected maximum preshape aperture in grasping (both ps <Expand
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Visual hyperacuity: spatiotemporal interpolation in human vision
  • M. Fahle, T. Poggio
  • Mathematics, Medicine
  • Proceedings of the Royal Society of London…
  • 24 November 1981
Stroboscopic presentation of a moving object can be interpolated by our visual system into the perception of continuous motion. The precision of this interpolation process has been explored byExpand
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