CS Home Training data.xlsx

After baseline measurements in-lab, participants were sent home to train for several months (subacute (SA): 4.9±0.6 months [mean ± SD]; chronic (CH): 6.8±4.0 months). They used their personal computers with a chin/forehead-rest provided by the lab, which they were instructed to position 42cm away from their display during training. Participants performed 300 trials of their assigned training tasks (Static, Motion or Flicker) per location per day, at least five days per week, and they emailed their data log files back to the lab for analysis every week. During home training sessions, they were instructed to stay fixated on the fixation spot and warned that inadequate fixation accuracy could limit recovery.Session thresholds were calculated by fitting a Weibull function with a 72.5 percent correct performance threshold criterion. After participants’ thresholds improved consistently for at least 20 sessions, we moved their training stimulus 1˚ deeper into the blind field along the x-axis (Cartesian coordinate space). Because the diameter of the stimulus is 2.5 ˚, the new training location had ~80% overlap with the original training location.<i> </i>Once participants trained for about 4 months, with at least one improved location (defined as consistently good contrast thresholds at that location), they were brought back to the lab, and performance at all home-trained locations was verified with eye tracker-enforced fixation control. We aimed for a similar number of training sessions at the blind-field locations of interest before scheduling people to return for in-lab performance verification. However, the amount of time elapsed until the return visit did vary, as it was affected by the individual’s rate of improvement, their work/family schedules, and ability to travel to our single study site (participants originated from across the entire United States and Canada). All participants were best corrected using glasses or contact lenses during testing and training. The Research Subjects Review Board approved study procedures at the University of Rochester, which were conducted as per the Declaration of Helsinki, with written informed consent obtained from each participant, and participation was voluntary.<br>实验室基线测量完成后，参与者被送回家进行数月训练：亚急性（subacute, SA）组训练时长为4.9±0.6个月[均值±标准差]，慢性（chronic, CH）组为6.8±4.0个月。参与者使用实验室提供的颏额托（chin/forehead-rest）搭配个人电脑，训练期间需将设备调整至距显示器42厘米的位置。每日针对每个训练位点，参与者需完成300次指定训练任务（静态、运动或闪烁任务），每周至少训练5天，并每周通过邮件将数据日志文件发送至实验室以供分析。居家训练期间，要求参与者始终注视注视点，并被告知注视精度不足可能会影响康复效果。会话阈值通过拟合威布尔函数（Weibull function）计算得到，以72.5%的正确率作为性能阈值判定标准。当参与者的阈值在至少20个训练会话中持续改善后，我们将训练刺激物沿笛卡尔坐标系（Cartesian coordinate space）的x轴向盲视野内推进1°。由于刺激物直径为2.5°，新训练位点与原训练位点的重叠度约为80%。当参与者完成约4个月训练，且至少存在一个性能改善的位点（定义为该位点对比度阈值（contrast thresholds）持续表现良好）时，将其召回实验室，通过眼动仪（eye tracker）强制注视控制，验证其所有居家训练位点的视觉性能。在安排参与者返回实验室进行性能验证前，我们希望其在目标盲视野位点完成相近数量的训练会话。但参与者返回实验室的间隔时长存在差异，这受到个体康复速率、工作与家庭日程，以及前往本研究唯一站点的出行能力影响——所有参与者均来自美国与加拿大全境。所有参与者在测试与训练期间均佩戴眼镜或隐形眼镜以达到最佳矫正视力。本研究流程经罗切斯特大学研究受试者审查委员会批准，严格遵循《赫尔辛基宣言（Declaration of Helsinki）》开展，所有参与者均已签署书面知情同意书，且参与完全自愿。