Blind subjects implanted with the Argus II retinal prosthesis are able to improve performance in a spatial-motor task.
Blind subjects implanted with the Argus II retinal prosthesis are able to improve performance in a spatial-motor task.
复制标题
DOI：
10.1136/bjo.2010.179622
复制
发表时间：
2011-04
期刊：
影响因子：
--
通讯作者：
Argus II Study Group
中科院分区：
文献类型：
--
作者：
Ahuja AK;Dorn JD;Caspi A;McMahon MJ;Dagnelie G;Dacruz L;Stanga P;Humayun MS;Greenberg RJ;Argus II Study Group
确定在空间运动任务中，植入Argus II视网膜假体的受试者与残余原生视力相比，可以在多大程度上改善性能。高对比度方形刺激（5.85 cm边）显示在位于受试者前方12“（30.5 cm）的19”（48.3 cm）触摸屏显示器上的随机位置。受试者被指示在系统打开和关闭的情况下定位并触摸正方形中心（每个40次试验）。记录正方形中心的坐标和触摸的位置。与关闭系统相比，96%（26/27）的受试者显示出准确性的显著改善，93%（25/27）的受试者显示出可重复性的显著改善（p<0.05，Student t检验）。一组5名受试者在系统关闭时（即仅使用其剩余视力）的准确性和可重复性值均<250像素（7.4 cm），其准确性和可重复性显著高于其余队列（p<0.01）。在这一组中，四名受试者表现出显着的改善，在准确性和可重复性与systemon. In最大的队列的视觉假体收件人的研究，到目前为止，我们发现，人工视觉增强信息从现有的视觉空间运动任务。NCT 00407602。
To determine to what extent subjects implanted with the Argus II retinal prosthesis can improve performance compared with residual native vision in a spatial-motor task. High-contrast square stimuli (5.85 cm sides) were displayed in random locations on a 19″ (48.3 cm) touch screen monitor located 12″ (30.5 cm) in front of the subject. Subjects were instructed to locate and touch the square centre with the system on and then off (40 trials each). The coordinates of the square centre and location touched were recorded. Ninety-six percent (26/27) of subjects showed a significant improvement in accuracy and 93% (25/27) show a significant improvement in repeatability with the system on compared with off (p<0.05, Student t test). A group of five subjects that had both accuracy and repeatability values <250 pixels (7.4 cm) with the system off (ie, using only their residual vision) was significantly more accurate and repeatable than the remainder of the cohort (p<0.01). Of this group, four subjects showed a significant improvement in both accuracy and repeatability with the system on. In a study on the largest cohort of visual prosthesis recipients to date, we found that artificial vision augments information from existing vision in a spatial-motor task. NCT00407602.
登录
查看更多内容
DOI：
10.1109/tnsre.2005.848687
发表时间：
2005-06-01
影响因子：
4.9
作者：
Mahadevappa, M;Weiland, JD;Humayun, MS
通讯作者：
Humayun, MS
影响因子：
--
作者：
Santos, A;Humayun, MS;Milam, AH
通讯作者：
Milam, AH
影响因子：
2.5
作者：
Sekirnjak, Chris;Hulse, Clare;Chichilnisky, E. J.
通讯作者：
Chichilnisky, E. J.
影响因子：
--
作者：
STONE, JL;BARLOW, WE;MILAM, AH
通讯作者：
MILAM, AH
影响因子：
8.2
作者：
Ostrovsky, Yuri;Andalman, Aaron;Sinha, Pawan
通讯作者：
Sinha, Pawan