Human perceptual learning by mental imagery

Perceptual learning is learning to perceive. For example, a radiologist is able to easily identify anomalies in medical images only after extended training. Theoretical and psychophysical studies [1-12] suggest that such improvements of performance are accomplished by neural synaptic changes driven by the repetitive presentation of stimuli. Here, we demonstrate that an equally reliable improvement can also occur in the absence of physical stimulation. Imagining the crucial part of a bisection stimulus was sufficient for successful perceptual learning. Hence, the neural processes underlying perceptual learning, which are usually assumed to be primarily dependent on stimulus processing, can be equally based on mentally generated signals.


Published in:
Current Biology, 19, 24, 2081-5
Year:
2009
Publisher:
Elsevier
ISSN:
0960-9822
Keywords:
Laboratories:




 Record created 2010-03-23, last modified 2018-03-17


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