@article {4664,
	title = {Perceptual learning: Functions, mechanisms, and applications},
	journal = {Vision Research},
	year = {2009},
	pages = {2531-2534},
	doi = {10.1016/j.visres.2009.09.023},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/19840632},
	author = {Zhong-Lin Lu and Cong Yu and Takeo Watanabe and Dov Sagi and Dennis Levi}
}
