McGovern David P, Webb Ben S, Peirce Jonathan W
Nottingham Visual Neuroscience, School of Psychology, The University of Nottingham, Nottingham, UK.
J Vis. 2012 Oct 9;12(11):4. doi: 10.1167/12.11.4.
Practice in most sensory tasks substantially improves perceptual performance. A hallmark of this 'perceptual learning' is its specificity for the basic attributes of the trained stimulus and task. Recent studies have challenged the specificity of learned improvements, although transfer between substantially different tasks has yet to be demonstrated. Here, we measure the degree of transfer between three distinct perceptual tasks. Participants trained on an orientation discrimination, a curvature discrimination, or a 'global form' task, all using stimuli comprised of multiple oriented elements. Before and after training they were tested on all three and a contrast discrimination control task. A clear transfer of learning was observed, in a pattern predicted by the relative complexity of the stimuli in the training and test tasks. Our results suggest that sensory improvements derived from perceptual learning can transfer between very different visual tasks.
在大多数感官任务中的练习能显著提高感知性能。这种“感知学习”的一个标志是它对训练刺激和任务的基本属性具有特异性。尽管尚未证明在截然不同的任务之间存在迁移，但最近的研究对学习改进的特异性提出了挑战。在这里，我们测量了三种不同感知任务之间的迁移程度。参与者接受了方向辨别、曲率辨别或“全局形状”任务的训练，所有这些任务都使用由多个定向元素组成的刺激。在训练前后，他们对所有这三项任务以及一个对比度辨别控制任务进行了测试。观察到了明显的学习迁移，其模式由训练和测试任务中刺激的相对复杂性所预测。我们的结果表明，从感知学习中获得的感官改进可以在非常不同的视觉任务之间迁移。
