Putzar Lisa, Hötting Kirsten, Rösler Frank, Röder Brigitte
Biological Psychology and Neuropsychology, University of Hamburg, Von-Melle-Park 11, D-20146 Hamburg, Germany.
Vision Res. 2007 Sep;47(20):2616-26. doi: 10.1016/j.visres.2007.07.002. Epub 2007 Aug 13.
Higher visual functions were investigated in patients treated for bilateral congenital cataracts in two experiments. Participants were asked to detect either real or illusory contours (Kanizsa squares in Experiment 1 or one of four different Kanizsa contours in Experiment 2) among distractor items. Compared to normally sighted participants matched for age, gender and education, cataract patients treated after the age of 5-6 months took relatively longer to detect Kanizsa figures (Experiments 1 and 2) and they had higher miss rates (Experiment 2). The present results suggest that the ability of visual feature binding depends on early visual input and is permanently impaired if patterned vision is prevented in early infancy for 5 months or more.
在两项实验中，对接受双侧先天性白内障治疗的患者的高级视觉功能进行了研究。要求参与者在干扰项中检测真实或虚幻的轮廓（实验1中的卡尼兹方块或实验2中的四种不同卡尼兹轮廓之一）。与年龄、性别和教育程度相匹配的正常视力参与者相比，5 - 6个月龄后接受治疗的白内障患者检测卡尼兹图形的时间相对较长（实验1和实验2），且漏报率较高（实验2）。目前的结果表明，视觉特征绑定能力取决于早期视觉输入，如果在婴儿早期5个月或更长时间内阻止形成模式化视觉，则该能力会受到永久性损害。
