Zhang Gong-Liang, Cong Lin-Juan, Song Yan, Yu Cong
State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China.
J Vis. 2013 Mar 26;13(4):19. doi: 10.1167/13.4.19.
Our recent studies demonstrate that perceptual learning can transfer completely to untrained retinal locations upon proper training procedures, which suggests perceptual learning being a high-level learning process occurring beyond the retinotopic visual areas. We propose that whether learning is location specific depends on the functional connections between high-level learning and the sensory inputs corresponding to the untrained retinal locations. These inputs may be suppressed by intensive training and focused (spatial) attention on the trained location to obstruct learning transfer. Here we present event-related potential (ERP) evidence that Vernier perceptual learning and its transfer are associated with P1 reduction and N1 enhancement. However, location specificity is only associated with N1 suppression corresponding to the untrained retinal location. These results are consistent with our proposal that the blockage of top-down influences or functional connections and the inhibition of visual inputs corresponding to untrained locations may contribute to location specificity in perceptual learning.
我们最近的研究表明，通过适当的训练程序，知觉学习可以完全转移到未训练的视网膜位置，这表明知觉学习是一种发生在视网膜拓扑视觉区域之外的高级学习过程。我们提出，学习是否具有位置特异性取决于高级学习与对应于未训练视网膜位置的感觉输入之间的功能连接。这些输入可能会因强化训练以及对训练位置的集中（空间）注意力而受到抑制，从而阻碍学习转移。在此，我们提供事件相关电位（ERP）证据，表明游标知觉学习及其转移与P1波幅降低和N1波幅增强有关。然而，位置特异性仅与对应于未训练视网膜位置的N1波幅抑制有关。这些结果与我们的观点一致，即自上而下的影响或功能连接的阻断以及对未训练位置对应的视觉输入的抑制可能导致知觉学习中的位置特异性。
