Department of Psychology, Second University of Naples, Via Vivaldi 43, 81100, Caserta, Italy.
Neuropsychology. 2010 Sep;24(5):674-9. doi: 10.1037/a0019594.
This study aims at adapting the Corsi Block-Tapping task to measure serial-spatial memory in blind people and at clarifying the role of visual experience in the task.
Congenitally blind, adventitiously blind, and blindfolded sighted people were compared on a version of the Corsi board that allowed the haptic perception of block positions (Haptic-Corsi). Participants placed their fingers on the blocks that the experimenter moved upward according to sequences of increasing length. Afterward, participants reproduced the sequences in forward/backward order.
The results showed a significant interaction between groups and forward/backward span: F(2, 58) = 5.74, MSE = .39, p < .01, eta2 = .16. In forward order the memory span was higher in adventitiously blind participants than blindfolded sighted (p < .05) but not congenitally blind participants. In backward order, there were no significant differences.
The good performance of blind people, especially adventitiously ones, was interpreted as evidence that sequential haptic inputs were organized spatially. The possible cognitive processes underlying the performance were discussed.
本研究旨在改编科西方块 - 敲击任务，以测量盲人的序列空间记忆，并阐明视觉经验在任务中的作用。
比较先天性盲人、后天性盲人以及蒙住眼睛的视力正常者在允许触觉感知方块位置的科西板版本（触觉科西）上的表现。参与者将手指放在实验者根据长度递增的序列向上移动的方块上。之后，参与者以正向/反向顺序再现序列。
结果显示组间和正向/反向跨度之间存在显著交互作用：F(2, 58) = 5.74, MSE =.39, p <.01, eta2 =.16。在正向顺序中，后天性盲人参与者的记忆跨度高于蒙住眼睛的视力正常者（p <.05），但低于先天性盲人参与者。在反向顺序中，没有显著差异。
盲人，尤其是后天性盲人的良好表现被解释为顺序触觉输入被空间组织的证据。讨论了支持表现的可能认知过程。
