Fig 1.
The ambiguous Necker lattice (left), a combination of nine Necker cubes, together with disambiguated lattice variants with depth cues (middle lattice = from-above-perspective “fap”; right lattice = from-below-perspective “fbp”), representing the two most probable 3D lattice interpretations [9,10].
Fig 2.
Median reversal rates (reversals per minute), interquartile range (boxes) and 90%-tile (antennas) for control (blue) and Asperger (red) participants. Notice that the lower quartile and 90-percentile of the Asperger data fall together.
Fig 3.
Distributions of the normalized dwell times, separately for the two observer groups (left: ASD patients with red traces and icons; right: control participants with blue traces and icons) and for the two perceptual interpretations. Filled circles correspond to fap (from-above-perspective) data, continuous lines depict the corresponding gamma fits. Open circles correspond to fbp (from-below-perspective), the dotted lines depict the corresponding gamma fits. Differences in ordinate scaling result from the different number of participants and thus data points entering in the two distributions.
Table 1.
Perceptual dynamics.
Fig 4.
Relation between reversal rate and age.
Relation between participants’ age and reversal rates of the Necker lattice. Left: Individual ASD patients in red; right: individual control participants in blue. There is no significant relation between Asperger observers’ age and their reversal rate. Control observers, in contrast, show an increase in reversal rates with age. Dotted lines represent regression lines.