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Publication Detail
Rapid changes in brain structure predict improvements induced by perceptual learning.
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Ditye T, Kanai R, Bahrami B, Muggleton NG, Rees G, Walsh V
  • Publication date:
  • Pagination:
    205, 212
  • Journal:
  • Volume:
  • Status:
  • Country:
    United States
  • PII:
  • Language:
  • Keywords:
    Cortical volume, Perceptual learning, Plasticity, Superior temporal sulcus, Visual search, White matter, Adult, Brain, Brain Mapping, Female, Humans, Image Processing, Computer-Assisted, Learning, Magnetic Resonance Imaging, Male, Neuronal Plasticity, Photic Stimulation, Young Adult
Practice-dependent changes in brain structure can occur in task relevant brain regions as a result of extensive training in complex motor tasks and long-term cognitive training but little is known about the impact of visual perceptual learning on brain structure. Here we studied the effect of five days of visual perceptual learning in a motion-color conjunction search task using anatomical MRI. We found rapid changes in gray matter volume in the right posterior superior temporal sulcus, an area sensitive to coherently moving stimuli, that predicted the degree to which an individual's performance improved with training. Furthermore, behavioral improvements were also predicted by volumetric changes in an extended white matter region underlying the visual cortex. These findings point towards quick and efficient plastic neural mechanisms that enable the visual brain to deal effectively with changing environmental demands.
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