Abstract
In motor learning, training a task B can disrupt improvements of performance of a previously learned task A, indicating that learning needs consolidation. An influential study suggested that this is the case also for visual perceptual learning [1]. Using the same paradigm, we failed to reproduce these results. Further experiments with bisection stimuli also showed no retrograde disruption from task B on task A. Hence, for the tasks tested here, perceptual learning does not suffer from retrograde interference.
Highlights
Many studies of perceptual learning have shown that performance strongly improves during breaks, when including sleep, indicating that perceptual learning undergoes consolidation [2,3,4,5,6,7,8,9,10]
It was shown that consolidation of a task A could be disrupted on even shorter time scales by another task B, if task B was trained directly after training with task A [11,12,13,14,15,16]
These results show that the improvements of task A can be disrupted by retrograde interference from task B
Summary
Many studies of perceptual learning have shown that performance strongly improves during breaks, when including sleep, indicating that perceptual learning undergoes consolidation [2,3,4,5,6,7,8,9,10]. It was shown that consolidation of a task A could be disrupted on even shorter time scales by another task B, if task B was trained directly after training with task A [11,12,13,14,15,16]. These results show that the improvements of task A can be disrupted by retrograde interference from task B. We found no retrograde interference when two bisection stimuli were trained in separate but consecutive sessions
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