Abstract:
:We present a novel three-dimensional (3-D) version of Rubin's classical bistable goblet-profiles figure. An actual goblet sculpture was produced and rotated on a turntable in front of a white background. As the goblet rotates about its central axis, small circular asymmetries around the lips and chin region give a clear impression of two white profiles talking to each other. Although the profiles actually correspond to empty space or white background, they are more likely to be perceived as 'figure' than the 3-D goblet itself. Four experiments that presented the actual goblet (experiment 1) or two-dimensional (2-D) movies of it (experiments 2-4) were designed to verify these observations. We measured perceptual dominance of profiles as 'figure' and rate of reversal as a function of three factors: motion (static vs rotating), orientation (upright vs inverted), and configuration (face-to-face vs back-to-back). Results for the rotating goblet showed a statistically reliable preference for perceiving the talking profiles as 'figure'. Deforming the profiles by manipulating the vertex angle of the mouth region produced an inverted U-shaped curve with the peak representing the stimulus condition in which the profiles perception was most remarkable. We discussed a number of 3-D and 2-D figure-ground factors that might apply to this rather complex stimulus situation.
journal_name
Perceptionjournal_title
Perceptionauthors
Wake H,Wake T,Oyama Tdoi
10.1068/p7600subject
Has Abstractpub_date
2014-01-01 00:00:00pages
1018-32issue
10eissn
0301-0066issn
1468-4233journal_volume
43pub_type
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