Lyon S R, Ross L E
Appl Res Ment Retard. 1984;5(4):439-49. doi: 10.1016/s0270-3092(84)80037-5.
This study investigated the effects of comparison scan training on the matching and visual scanning performance of severely and profoundly mentally retarded students. A match-to-sample-problem pretest was administered to 32 students, whose eye movements were recorded on videotape, and the 12 subjects who demonstrated at least minimal competence on the pretest task were matched on pretest performance and assigned to training (n = 6) or comparison (n = 6) groups. Training-group students were provided with visual comparison scan training, while the comparison group performed the same task but received no training. A posttest identical to the pretest followed. The training group was superior to the comparison group during training and showed a significant increase in correct responding from pretest to posttest, whereas the comparison group did not. Neither measures of scanning behavior nor the latencies of the choice response were related to matching performance or affected by the training procedure. Possible relationships among visual scanning, comparison scan training, and matching-task performance were discussed.
本研究调查了比较扫描训练对重度和极重度智力障碍学生的匹配及视觉扫描表现的影响。对32名学生进行了样本匹配问题预测试，其眼球运动被录像记录，在预测试任务中表现出至少最低能力水平的12名受试者根据预测试成绩进行匹配，并被分配到训练组（n = 6）或对照组（n = 6）。训练组学生接受视觉比较扫描训练，而对照组执行相同任务但未接受训练。随后进行了与预测试相同的后测试。训练组在训练期间优于对照组，并且从预测试到后测试正确反应显著增加，而对照组则没有。扫描行为测量指标和选择反应潜伏期均与匹配表现无关，也不受训练程序影响。文中讨论了视觉扫描、比较扫描训练和匹配任务表现之间可能的关系。
