科研成果

2014
Wang, R., Zhang, J. Y., Klein, S. A., Levi, D. M., & Yu, C. (2014). Vernier perceptual learning transfers to completely untrained retinal locations after double training: a "piggybacking" effect. Journal of Vision, 14(13):12, 1–10. 访问链接Abstract
Perceptual learning, a process in which training improves visual discrimination, is often specific to the trained retinal location, and this location specificity is frequently regarded as an indication of neural plasticity in the retinotopic visual cortex. However, our previous studies have shown that "double training" enables location-specific perceptual learning, such as Vernier learning, to completely transfer to a new location where an irrelevant task is practiced. Here we show that Vernier learning can be actuated by less location-specific orientation or motion-direction learning to transfer to completely untrained retinal locations. This "piggybacking" effect occurs even if both tasks are trained at the same retinal location. However, piggybacking does not occur when the Vernier task is paired with a more location-specific contrast-discrimination task. This previously unknown complexity challenges the current understanding of perceptual learning and its specificity/transfer. Orientation and motion-direction learning, but not contrast and Vernier learning, appears to activate a global process that allows learning transfer to untrained locations. Moreover, when paired with orientation or motion-direction learning, Vernier learning may be "piggybacked" by the activated global process to transfer to other untrained retinal locations. How this task-specific global activation process is achieved is as yet unknown.
Zhang, J. - Y., Cong, L. - J., Klein, S. A., Levi, D. M., & Yu, C. (2014). Perceptual learning improves adult amblyopic vision through rule-based cognitive compensation. Investigative Ophthalmology and Visual Science, (4), 2020-2030. 访问链接
2013
Wang, R., Cong, L. - J., & Yu, C. (2013). The classical TDT perceptual learning is mostly temporal learning. Journal of Vision, (5). 访问链接
Zhang, G. - L., Cong, L. - J., Song, Y., & Yu, C. (2013). ERP P1-N1 changes associated with Vernier perceptual learning and its location specificity and transfer. Journal of Vision, (4). 访问链接
2012
Zhang, J. - Y., Zhang, G. - L., Liu, L., & Yu, C. (2012). Whole report uncovers correctly identified but incorrectly placed target information under visual crowding. Journal of Vision, (7). 访问链接
Wang, R., Zhang, J. - Y., Klein, S. A., Levi, D. M., & Yu, C. (2012). Task relevancy and demand modulate double-training enabled transfer of perceptual learning. Vision Research, 33-38. 访问链接
2011
Liu, X. - Y., Zhang, T., Jia, Y. - L., Wang, N. - L., & Yu, C. (2011). The therapeutic impact of perceptual learning on juvenile amblyopia with or without previous patching treatment. Investigative Ophthalmology and Visual Science, (3), 1531-1538. 访问链接
2010
Zhang, T., Xiao, L. - Q., Klein, S. A., Levi, D. M., & Yu, C. (2010). Decoupling location specificity from perceptual learning of orientation discrimination. Vision Research, (4), 368-374. 访问链接
Lu, Z. - L., Yu, C., Watanabe, T., Sagi, D., & Levi, D. (2010). Perceptual learning: Functions, mechanisms, and applications. Vision Research, (4), 365-367. 访问链接
Zhang, J. - Y., Zhang, G. - L., Xiao, L. - Q., Klein, S. A., Levi, D. M., & Yu, C. (2010). Rule-based learning explains visual perceptual learning and its specificity and transfer. Journal of Neuroscience, (37), 12323-12328. 访问链接
2009
Zhang, J. - Y., Zhang, T., Xue, F., Liu, L., & Yu, C. (2009). Legibility of Chinese characters in peripheral vision and the top-down influences on crowding. Vision Research, (1), 44-53. 访问链接
Lu, Z. - L., Yu, C., Watanabe, T., Sagi, D., & Levi, D. (2009). Perceptual learning: Functions, mechanisms, and applications. Vision Research, (21), 2531-2534. 访问链接
Liu, L., Klein, S. A., Xue, F., Zhang, J. - Y., & Yu, C. (2009). Using geometric moments to explain human letter recognition near the acuity limit. Journal of Vision, (1). 访问链接
2008
Xiao, L. - Q., Zhang, J. - Y., Wang, R., Klein, S. A., Levi, D. M., & Yu, C. (2008). Complete Transfer of Perceptual Learning across Retinal Locations Enabled by Double Training. Current Biology, (24), 1922-1926. 访问链接
Zhang, J. - Y., Kuai, S. - G., Xiao, L. - Q., Klein, S. A., Levi, D. M., & Yu, C. (2008). Stimulus coding rules for perceptual learning. PLoS Biology, (8), 1651-1660. 访问链接
2007
Levi, D. M., Yu, C., Kuai, S. - G., & Rislove, E. (2007). Global contour processing in amblyopia. Vision Research, (4), 512-524. 访问链接
Zhang, J. - Y., Zhang, T., Xue, F., Liu, L., & Yu, C. (2007). Legibility variations of Chinese characters and implications for visual acuity measurement in Chinese reading population. Investigative Ophthalmology and Visual Science, (5), 2383-2390. 访问链接
2006
Kuai, S. - G., & Yu, C. (2006). Constant contour integration in peripheral vision for stimuli with good Gestalt properties. Journal of Vision, (12), 1412-1420. 访问链接
2005
Kuai, S. - G., Zhang, J. - Y., Klein, S. A., Levi, D. M., & Yu, C. (2005). The essential role of stimulus temporal patterning in enabling perceptual learning. Nature Neuroscience, (11), 1497-1499. 访问链接
2004
Yu, C., Klein, S. A., & Levi, D. M. (2004). Perceptual learning in contrast discrimination and the (minimal) role of context. Journal of Vision, (3), 169-182. 访问链接

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