"A criticism of both the above dichotomies [i.e., short range vs. long range motion, and first vs. second order motion] is that they reflect differences in the choice of stimuli, rather than qualitative differences in the underlying motion detection mechanisms. For example, much of the evidence for the existence of first-order and second-order ( Read more... )

"Crowding has usually been characterized by just one
number, “critical spacing”, i.e., spacing threshold, the spacing
required to achieve a criterion level of performance. That
single number seems to be enough to characterize crowding
when the flanker is similar to the target, but may not
adequately describe the weaker crowding produced by
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Dear Lazyweb,

Please point me in the direction of supplies and knowledge I will need to knit a pair of socks.

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"Turing’s contribution to this discussion was to advocate the use of gin, which he said contained alcohol and water in just the right proportions to give a zero temperature coefficient of propagation velocity at room temperature."
Wilkes, Maurice V. Computers Then and Now. 1967 ACM Turing lecture. Journal of the Association ( Read more... )

The primary benefit of OKCupid/Fetlife/etc. appears to be that if I see someone's profile, then sooner or later run into them IRL, (because Seattle is tiny,) then go back and look at their profile again, I have a better chance of remembering who they are.

Top Ten Visual Illusions of 2010
overdue vanity post

(Original entry: http://saccade.tumblr.com/post/2439989358)