scholarly journals Perceptual learning of motion direction discrimination in fovea reflects mixed but separable mechanisms of stimulus enhancement and template retuning

2010 ◽  
Vol 2 (7) ◽  
pp. 77-77
Author(s):  
W. Chu ◽  
Z.-L. Lu ◽  
B. A. Dosher
Keyword(s):  
Perceptual Learning ◽  
Motion Direction ◽  
Direction Discrimination ◽  
Stimulus Enhancement

scholarly journals Roll tilt self-motion direction discrimination training: First evidence for perceptual learning

2020 ◽  
Vol 82 (4) ◽  
pp. 1987-1999 ◽  
Author(s):  
Manuel P. Klaus ◽  
C. G. Schöne ◽  
M. Hartmann ◽  
D. M. Merfeld ◽  
M. C. Schubert ◽  
...  
Keyword(s):  
Perceptual Learning ◽  
Discrimination Training ◽  
Semicircular Canals ◽  
Poor Performance ◽  
Motion Direction ◽  
Balance Test ◽  
Direction Discrimination ◽  
Tilt Condition ◽  
Self Motion ◽  
Roll Tilt

AbstractPerceptual learning, the ability to improve the sensitivity of sensory perception through training, has been shown to exist in all sensory systems but the vestibular system. A previous study found no improvement of passive self-motion thresholds in the dark after intense direction discrimination training of either yaw rotations (stimulating semicircular canals) or y-translation (stimulating otoliths). The goal of the present study was to investigate whether perceptual learning of self-motion in the dark would occur when there is a simultaneous otolith and semicircular canal input, as is the case with roll tilt motion stimuli. Blindfolded subjects (n = 10) trained on a direction discrimination task with 0.2-Hz roll tilt motion stimuli (9 h of training, 1,800 trials). Before and after training, motion thresholds were measured in the dark for the trained motion and for three transfer conditions. We found that roll tilt sensitivity in the 0.2-Hz roll tilt condition was increased (i.e., thresholds decreased) after training but not for controls who were not exposed to training. This is the first demonstration of perceptual learning of passive self-motion direction discrimination in the dark. The results have potential therapeutic relevance as 0.2-Hz roll thresholds have been associated with poor performance on a clinical balance test that has been linked to more than a fivefold increase in falls.

scholarly journals Men need a nap to show perceptual learning of motion direction discrimination, but women do not.

2012 ◽  
Vol 12 (9) ◽  
pp. 1132-1132
Author(s):  
E. McDevitt ◽  
B. Bays ◽  
A. Rokem ◽  
M. Silver ◽  
S. Mednick
Keyword(s):  
Perceptual Learning ◽  
Motion Direction ◽  
Direction Discrimination

scholarly journals Perceptual learning of motion direction discrimination in fovea: Separable mechanisms

2006 ◽  
Vol 46 (15) ◽  
pp. 2315-2327 ◽  
Author(s):  
Zhong-Lin Lu ◽  
Wilson Chu ◽  
Barbara Anne Dosher
Keyword(s):  
Perceptual Learning ◽  
Motion Direction ◽  
Direction Discrimination

scholarly journals The effects of naps on the magnitude and specificity of perceptual learning of motion direction discrimination

2011 ◽  
Vol 11 (11) ◽  
pp. 1000-1000
Author(s):  
A. Rokem ◽  
M. Silver ◽  
E. McDevitt ◽  
S. Mednick
Keyword(s):  
Perceptual Learning ◽  
Motion Direction ◽  
Direction Discrimination
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