Disconnection of the geons in the original spatial organization (DO) resulted in accuracy scores that did not differ from the original objects (CO). The connected-scrambled (CS) and disconnected-scrambled (DS) drawings were discriminated at a similar level of accuracy, which was significantly poorer than the original drawings. The test results indicate that the geon intersections were not a major contributor to object recognition. These results are consistent with a study by Van Hamme, Wasserman, and Biederman (1992). They trained pigeons to discriminate four objects in which half of the contours and vertices were deleted. Then pigeons were tested with complimentary contours which were in an intact or scrambled arrangement. The complementary images were discriminated at a high level of accuracy, but the scrambled contours were recognized much more poorly. Their results indicated that the contours and geon intersections alone were insufficient to account for successful object recognition.

geon intersection test results