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PERCEPTUAL LEARNING


Performance on visual or auditory perceptual tasks such as letter recognition, object recognition, and pattern discrimination can be dramatically improved with training or practice.  This project studies the nature of efficient training, and how brain process are changed by training.  This research project will lead to an increased understanding of the conditions and methods of perceptual training that may assist in assessment of perceptual deficits and remediation.

 

This project has been supported previously by the National Institute of Mental Health and the National Science Foundation and is currently supported by the National Eye Institute.

 

 

PUBLICATIONS

 

2007    Dosher, B., & Lu, Z.-L. The functional form of performance improvements in perceptual

              learning: Learning rates and transfer. Psychological Science, 18, 531-539.

 

2006    Dosher, B., & Lu, Z.-L. Levels and mechanisms of perceptual learning: Learning 1st

           order luminance and 2nd order texture objects. Vision Research, 46, 1996-2007.

           [11 pp] [ PDF]

 

2006    Lu, Z.-L., Chu, W., & Dosher, B. Perceptual learning of motion direction discrimination

            in fovea: Separate mechanisms. Vision Research, 46, 2315-2327. [13 pp] [ PDF]

 

2006    Petrov, A., Dosher, B., & Lu, Z.-L. Perceptual learning without feedback in non-

           stationary environments: Data and model. Vision Research, 46, 3177-3197. [20 pp] [            PDF]

 

2005    Lu, Z.-L., Chu, W., Dosher, B., & Lee, S. Perceptual learning of Gabor orientation

           identification in visual periphery: Complete inter-ocular transfer of learning

           mechanisms, Vision Research, 45, 2500-2510. [11 pp] [ PDF]

 

2005    Dosher, B., & Lu, Z. Perceptual learning in clear displays optimizes performance:

           Learning the limiting process. Proceedings of the National Academy of Sciences, USA

           104, 5286-5290. [5 pp] [ PDF]

 

2005    Lu, Z., Chu, W., & Dosher, B. Independent perceptual learning in monocular and

           binocular motion systems. Proceedings of the National Academy of Sciences, USA,

           102, 5624-5629. [6 pp] [ PDF]

 

2005    Lu, Z.-L., Chu, W., Dosher, B., & Lee, S. Perceptual learning of Gabor orientation

           identification in visual periphery: Complete inter-ocular transfer of learning

           mechanisms, Vision Research, in press.

 

2005    Lu, Z., Neuse, J., Madigan, S., & Dosher, B. Fast decay of iconic memory in observers

           with mild cognitive impairment. Proceedings of the National Academy of Sciences, USA, 102,

           1797-1802. [6 pp] [ PDF]

 

2005    Petrov, A. A., Dosher, B., & Lu, Z. The dynamics of perceptual learning: An incremental

           channel reweighting. Psychological Review, 112, 715-743. [29 pp] [ PDF]

 

2004    Dosher, B., & Lu, Z.-L. Mechanisms of perceptual learning. In Itti, L. & Rees, G. (Eds.),

           Neurobiology of Attention. MIT Press, 471-476. [6 pp] [ PDF]

 

2004    Lu, Z.-L., & Dosher, B. Perceptual learning retunes the perceptual template in foveal

           orientation identifation. Journal of Vision, 4, 44-56. [13 pp] [ PDF]

 

1999    Dosher, B., and Lu, Z.-L. Mechanisms of perceptual learning.  Vision Research, 39, 3197-

           3221. [25 pp] [ PDF]

 

1998    Dosher, B., & Lu, Z.-L. Perceptual learning reflects external noise filtering and internal

           noise reduction through channel reweighting.  Proceedings of the National Academy of ,

            Science 95, 13988-13993. [6 pp] [ PDF]

 

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