Size-Detecting Mechanisms in Human Vision

Science  06 Dec 1968:
Vol. 162, Issue 3858, pp. 1146-1148
DOI: 10.1126/science.162.3858.1146-a


Inspecting a pattern of alternating dark and light bars makes it difficult to see a similar pattern presented afterward. This phenomenon can be used to isolate mechanisms responsive to bars of a given width. Our results suggest that the human visual system contains several different classes of size detectors, each maximally sensitive to visual targets with sizes in a particular range.

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