Do our visual systems see in frames like a movie camera or instead analyze the world continuously? Why do you see multiple hands when you clap under yellow street lamps? How did Hollywood launch from the question of whether all four legs of a galloping horse come off the ground at once? And what is the very surprising thing that happens if you stare at your ceiling fan for a long time while it turns? This week’s episode is about visual perception — and a series of eye-opening revelations about how the brain takes in information from the world.

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Kline K, Holcombe AO, Eagleman DM. (2004). Illusory motion reversal is caused by rivalry, not by perceptual snapshots of the visual field. Vision Research. 2004 Oct 1;44(23):2653-8.

Kline KA, Holcombe AO, Eagleman DM. (2006). Illusory motion reversal does not imply discrete processing: Reply to Rojas et al. Vision Research. 2006;6(46):1158-9.

Kline KA, Eagleman DM. (2008). Evidence against the temporal subsampling account of illusory motion reversal. Journal of Vision. 2008 Apr 1;8(4):13-.

Piantoni G, Kline KA, Eagleman DM. (2010). Beta oscillations correlate with the probability of perceiving rivalrous visual stimuli. Journal of Vision. 2010 Nov 1;10(13):18-.

Sperling G, van Santen JP, Burt PJ. (1985). Three theories of stroboscopic motion detection. Spatial vision. 1985 Jan 1;1(1):47-56.

Schouten JF, Bekker JA. (1967). Reaction time and accuracy. Acta psychologica. 1967 Jan 1;27:143-53.

Eagleman DM. (2001). Visual illusions and neurobiology. Nature Reviews Neuroscience. 2001 Dec 1;2(12):920-6.

Wade NJ, Verstraten FA. (1998). Introduction and historical overview. MIT Press.

VanRullen R, Reddy L, Koch C. (2005). Attention-driven discrete sampling of motion perception. Proceedings of the National Academy of Sciences. 2005 Apr 5;102(14):5291-6.

Purves D, Paydarfar JA, Andrews TJ. (1996). The wagon wheel illusion in movies and reality. Proceedings of the National Academy of Sciences. 1996 Apr 16;93(8):3693-7.

Crick F, Koch C. (2003). A framework for consciousness. Nature neuroscience. 2003 Feb 1;6(2):119-26.

Eagleman DM. Human time perception and its illusions. (2008). Current opinion in neurobiology. 2008 Apr 1;18(2):131-6.

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