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Measuring visual form discrimination with blur thresholds.
The spread parameter was varied to measure form discrimination thresholds for simple geometrical shapes.
Following determination of baseline values, observers trained for 7 days, 1000 form discrimination responses with error feedback per day in a staircase procedure of the blur parameter.
For four observers, thresholds improved an average of 5% (range −11%to+14%4%) equally for trained and untrained patterns and remained stable during subsequent training with the same targets in a related form discrimination task not involving blur.
Because it transferred across target sets, the very slight improvement was indeed in the perceptual capacity to compensate for optical image degradation and not in form discrimination, but its defocus equivalent was quite minor, well less than ¼ diopter.
Main Outcome Measures: Judgment of line orientation, grip strength, finger oscillation speed, line bisection, Trail-Making Test Part A, Wechsler Adult Intelligence Scale-III block design, letter cancellation, visual form discrimination.
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It must uphold and advance human rights, and address all forms of discrimination, including class discrimination.
"Finally, the PFSC acknowledges that racism is one form of discrimination, but that, unfortunately, other forms of discrimination also manifest themselves from time to time in football.
Once the Administration — or the Supreme Court — concludes that one form of discrimination against gays is unconstitutional, it becomes more difficult to defend any form of discrimination.
Another form of discrimination is electoral gerrymandering.
"There has been no form of discrimination whatsoever..
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