منابع مشابه
Perceptual learning without signal
Perceptual learning is characterized by an improvement in a perceptual task following practice. Several studies have demonstrated that top-down processes, such as attention and task-related expectations, can be necessary components of perceptual learning [Ahissar & Hochstein, 1993, 2000, 2002; Fahle & Morgan, 1996; Seitz, Lefebvre, Watanabe, & Jolicoeur, 2005; Seitz, Nanez, Holloway, Koyama, & ...
متن کاملAssociative learning with and without perceptual awareness.
BACKGROUND The relationship between awareness and associative learning is a key controversial issue that remains to be elucidated. An experiment was designed to assess associative learning with and without perceptual awareness. METHOD Participants received repeated trials of two compatible stimuli sequences (S1A → S2A and S1B → S2B ), where S1 was a masked stimulus, and S2 an imperative stimu...
متن کاملAn Adaptive Signal Detection Model Applied to Perceptual Learning
We introduce a new model of adaptive criterion setting within a signal detection framework, and show how this provides psychological insights that allow us to segregate causes of suboptimality in perceptual learning. We apply this to a perceptual learning task for both neurotypical and autistic participants. The model parameters provide a bridge between the mechanisms of an aberrant precision a...
متن کاملPerceptual learning incepted by decoded fMRI neurofeedback without stimulus presentation.
It is controversial whether the adult primate early visual cortex is sufficiently plastic to cause visual perceptual learning (VPL). The controversy occurs partially because most VPL studies have examined correlations between behavioral and neural activity changes rather than cause-and-effect relationships. With an online-feedback method that uses decoded functional magnetic resonance imaging (...
متن کاملChromatic Perceptual Learning but No Category Effects without Linguistic Input
Perceptual learning involves an improvement in perceptual judgment with practice, which is often specific to stimulus or task factors. Perceptual learning has been shown on a range of visual tasks but very little research has explored chromatic perceptual learning. Here, we use two low level perceptual threshold tasks and a supra-threshold target detection task to assess chromatic perceptual le...
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ژورنال
عنوان ژورنال: Vision Research
سال: 2007
ISSN: 0042-6989
DOI: 10.1016/j.visres.2006.10.016