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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Neuron. 2011 Nov 3;72(3):455–468. doi: 10.1016/j.neuron.2011.10.009

Figure 1. Rhythmic Exploratory Movements.

Figure 1

(A) Sketch of a blind man using a pair of sticks to scan the space in front of him for objects. Redrawn from Descartes (1637) by Jenny Groisman. (B) Successive frames as a rat whisks in air as it searches for a food tube. Frames were taken at 17 ms intervals, using darkfield illumination, and the images were individually thresholded. Adapted from Fee et al. (1997).