Larcombe S J, Kennard C, Bridge H
Oxford Centre for fMRI of the Brain (FMRIB), UK; Nuffield Department of Clinical Neurosciences (NDCN), University of Oxford, Oxford, UK.
Nuffield Department of Clinical Neurosciences (NDCN), University of Oxford, Oxford, UK.
Vision Res. 2017 Jun;135:26-33. doi: 10.1016/j.visres.2017.04.002. Epub 2017 May 3.
Visual perceptual learning describes the improvement of visual perception with repeated practice. Previous research has established that the learning effects of perceptual training may be transferable to untrained stimulus attributes such as spatial location under certain circumstances. However, the mechanisms involved in transfer have not yet been fully elucidated. Here, we investigated the effect of altering training time course on the transferability of learning effects. Participants were trained on a motion direction discrimination task or a sinusoidal grating orientation discrimination task in a single visual hemifield. The 4000 training trials were either condensed into one day, or spread evenly across five training days. When participants were trained over a five-day period, there was transfer of learning to both the untrained visual hemifield and the untrained task. In contrast, when the same amount of training was condensed into a single day, participants did not show any transfer of learning. Thus, learning time course may influence the transferability of perceptual learning effects.
视觉感知学习描述的是通过反复练习而实现的视觉感知能力的提升。先前的研究已经证实，在某些情况下，感知训练的学习效果可能会转移到诸如空间位置等未训练的刺激属性上。然而，其中涉及的转移机制尚未完全阐明。在此，我们研究了改变训练时间进程对学习效果可转移性的影响。参与者在单个视觉半视野中接受运动方向辨别任务或正弦光栅方向辨别任务的训练。4000次训练试验要么集中在一天内完成，要么平均分布在五个训练日中。当参与者在五天的时间内进行训练时，学习转移到了未训练的视觉半视野和未训练的任务上。相比之下，当相同数量的训练集中在一天内完成时，参与者没有表现出任何学习转移。因此，学习时间进程可能会影响感知学习效果的可转移性。
