Studies in auditory and visual space perception (1901)
Pierce, Arthur Henry, 1867-1914 · New York, Longmans, Green, and Co. · leaf 266
s in any other position. Hence the flimsiness of the angle explanation. Further negative evidence for the same thing is found in certain mutilated Poggendorff figures. Retain only the acute angles (as in Fig. 39) and the illusion disappears, while the retaining of the ob- tuse angles in a similar… … Fig. 40. acute angles have. Again Fig. 40 shows the regular illu- sion, yet all the obliques of the figure are seen to be perfectly parallel, which could not be the case were the illusion due to angular enlargements. Evidently then other causes must be looked for. Dr. Judd finds these first in the…
Directional hearing · Space perception · Optical illusions
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