SeitzWatanabe05
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A Unified Model of Perceptual Learning. (SeitzWatanabe05)
Seitz and Watanabe (2005) -- A Unified Model of Perceptual Learning., Trends in Cognitive Science, Jul (Vol 9(7) 329-334).
Abstract
Perceptual learning in adult humans and animals refers to improvements in sensory abilities after training. These improvements had been thought to occur only when attention is focused on the stimuli to be learned (task-relevant learning) but recent studies demonstrate performance improvements outside the focus of atten- tion (task-irrelevant learning). Here, we propose a uniied model that explains both task-relevant and task-irrelevant learning. The model suggests that long- term sensitivity enhancements to task-relevant or irrelevant stimuli occur as a result of timely interactions between diffused signals triggered by task performance and signals produced by stimulus presentation. The proposed mechanism uses multiple attentional and reinforcement systems that rely on different underlying neuromodulators. Our model provides insights into how neural modul ators, attenti onal and rei nforcement learning systems are related.
Keywords
Other Information
Web page of Aaron R. Seitz.
Web page of Takeo Watanabe.
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