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This gain in cell population as well as retinothalamic convergence opens the door to question how information about contrast is transformed at the thalamic stage. Here, we address this question using a realistic dynamic model of the retinothalamic circuit. Our results show that different components of the thalamic RF might implement filters that are analogous to two types of well-known image processing techniques to preserve the quality of a higher resolution version of the image on its way to the primary visual cortex. <\/jats:p>","DOI":"10.1142\/s0129065717500459","type":"journal-article","created":{"date-parts":[[2017,9,8]],"date-time":"2017-09-08T02:43:49Z","timestamp":1504838629000},"page":"1750045","source":"Crossref","is-referenced-by-count":3,"title":["Image Sharpness and Contrast Tuning in the Early Visual Pathway"],"prefix":"10.1142","volume":"27","author":[{"given":"Eduardo","family":"S\u00e1nchez","sequence":"first","affiliation":[{"name":"Grupo de Sistemas Inteligentes (GSI), Centro Singular de Investigaci\u00f3n en Tecnolog\u00edas, de la Informacin (CITIUS), University of Santiago de Compostela, Rua Jenaro de la Fuente, Santiago de Compostela 15782, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rub\u00e9n","family":"Ferreiroa","sequence":"additional","affiliation":[{"name":"Grupo de Sistemas Inteligentes (GSI), Centro Singular de Investigaci\u00f3n en Tecnolog\u00edas, de la Informacin (CITIUS), University of Santiago de Compostela, Rua Jenaro de la Fuente, Santiago de Compostela 15782, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adri\u00e1n","family":"Arias","sequence":"additional","affiliation":[{"name":"Grupo de Sistemas Inteligentes (GSI), Centro Singular de Investigaci\u00f3n en Tecnolog\u00edas, de la Informacin (CITIUS), University of Santiago de Compostela, Rua Jenaro de la Fuente, Santiago de Compostela 15782, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luis M.","family":"Mart\u00ednez","sequence":"additional","affiliation":[{"name":"Instituto de Neurociencias de Alicante, CSIC-Universidad Miguel Hern\u00e1ndez, Avenida de Ram\u00f3n y Cajal s\/n, San Juan de Alicante 03550, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2017,11,2]]},"reference":[{"key":"S0129065717500459BIB001","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.1981.0033"},{"key":"S0129065717500459BIB002","doi-asserted-by":"publisher","DOI":"10.1038\/292344a0"},{"key":"S0129065717500459BIB003","doi-asserted-by":"publisher","DOI":"10.1017\/S0952523805226147"},{"key":"S0129065717500459BIB004","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pbio.1000063"},{"key":"S0129065717500459BIB005","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0908926106"},{"key":"S0129065717500459BIB006","doi-asserted-by":"publisher","DOI":"10.1152\/jn.00896.2009"},{"key":"S0129065717500459BIB007","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1152\/jn.1953.16.1.37","volume":"16","author":"Kuffler S. 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