This psychologist and Joseph Kruskal developed the technique of non-metric multidimensional scaling to help map subjective data. This psychologist (-5[1])used the example of a bird that eats one earthworm and is then presented with a slightly different earthworm to explain the notion of “psychological space” used in his universal law of generalization. Optical illusions named for this man include a figure-ground illusion involving elephant legs (-5[1])and an illusion involving two identical parallelograms that (-5[1])look like the tops of different-sized (-5[1])tables. (-5[1])The film Dunkirk prominently features another illusion (10[1])named for (-5[1])this (10[1])man, (10[1]-5[1])which is a superposition (10[1])of sine waves that is often (10[1])compared to a barber (10[1])pole because (10[1])it appears to continually ascend or descend (10[2])in pitch without actually (10[2])getting higher or lower. (10[1]-5[1])For 10 points, name this American (10[1])cognitive scientist who lends his name to those “tones.” ■END■ (10[5]0[6])