Perceptual learning without perception

@article{Watanabe2001PerceptualLW,
  title={Perceptual learning without perception},
  author={Takeo Watanabe and Jos{\'e} E. N{\'a}{\~n}ez and Yuka Sasaki},
  journal={Nature},
  year={2001},
  volume={413},
  pages={844-848}
}
The brain is able to adapt rapidly and continually to the surrounding environment, becoming increasingly sensitive to important and frequently encountered stimuli. It is often claimed that this adaptive learning is highly task-specific, that is, we become more sensitive to the critical signals in the tasks we attend to. Here, we show a new type of perceptual learning, which occurs without attention, without awareness and without any task relevance. Subjects were repeatedly presented with a… 
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References

SHOWING 1-10 OF 35 REFERENCES
Attentional control of early perceptual learning.
  • M. Ahissar, S. Hochstein
  • Psychology, Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1993
TLDR
It is found that practicing one task did not improve performance in an alternative task, even though both tasks used exactly the same visual stimuli but depended on different stimulus attributes, suggesting that specific high-level attentional mechanisms, controlling changes at early visual processing levels, are essential in perceptual learning.
Attentional requirements in a ‘preattentive’ feature search task
TLDR
It is shown that detection of differences in a simple feature such as orientation is severely impaired by additionally imposing an attentionally demanding rapid serial visual presentation task involving letter identification, demonstrating that attention can be critical even for the detection of so-called ‘preattentive’ features.
Perceptual learning specific for orientation and spatial frequency
TLDR
An experiment on perceptual learning in the discrimination of gratings of different waveform shows that learning is specific for both the orientation and the spatial frequency of the practice stimulus.
Neural systems underlying learning and representation of global motion.
TLDR
The results indicate that the learning and representation of visual motion discrimination are mediated by different, but probably interacting, neuronal subsystems.
Learning to see: experience and attention in primary visual cortex
TLDR
This work explored whether modification of the functional properties of primary visual cortex (V1) accompanies perceptual learning, and found that basic receptive field properties were unaffected by perceptual training, and visual topography was indistinguishable between trained and untrained animals.
The time course of learning a visual skill
TLDR
Here it is conjecture that some types of perceptual experience trigger permanent neural changes in early processing stages of the adult visual system, which may take many hours to become functional.
A selective impairment of motion perception following lesions of the middle temporal visual area (MT)
  • W. Newsome, EB Pare
  • Psychology, Biology
    The Journal of neuroscience : the official journal of the Society for Neuroscience
  • 1988
TLDR
The results indicate that neural activity in MT contributes selectively to the perception of motion.
Attentional modulation of visual motion processing in cortical areas MT and MST
TLDR
It is reported that the responses of direction-selective neurons in monkey visual cortex are greatly influenced by attention, and that this modulation occurs as early in the cortical hierarchy as the level of the middle temporal visual area (MT).
Task-dependent influences of attention on the activation of human primary visual cortex.
  • T. Watanabe, A. Harner, I. Mukai
  • Biology, Psychology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1998
TLDR
The results show that attention to motion modulates area V1, and more interestingly that high-level cognitive processing such as attention may directly or indirectly determine the retroactive extent of feedback within the motion pathway in a manner dependent on the type of motion attended.
...
1
2
3
4
...