Skip to main content
. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Nat Rev Neurosci. 2009 Dec 2;11(1):53–60. doi: 10.1038/nrn2737

Figure 1. Processing during VPL training.

Figure 1

According to the model presented, visual perceptual learning (VPL) of the presented visual feature occurs when a bottom-up signal from the feature is boosted by attention (left) or by reinforcement signals (right). Attention enhances task-relevant signals and inhibits task-irrelevant signals, leading to task-relevant VPL. By contrast, reinforcement signals are diffusive and enhance signals from any stimulus feature presented in the visual field, irrespective of whether the feature is task-relevant or task-irrelevant.