Two figures were examined, one a subjective disk and the other a cup whose shape was revealed by shadows. The figures were presented in a single color on a background of a different color, and the observers adjusted the radiance of one color until, in the first case, the vividness of the subjective contour reached a minimum (minimum subjective contour) or, in the second case, the impression of ...

Perception: Intuitively, perception is the process of becoming aware of physical objects or phenomena through the senses. However, to define it as an observable phenomenon without resorting to a highly subjective concept such as awareness, one must include additional measurable criteria. A less involved and more up to date view is that perception is the mental function by means of which the phy...

Humans are sensitive to complexity and regularity in patterns [YKM13, FK97]. The subjective perception of pattern complexity is correlated to algorithmic (Kolmogorov-Chaitin) complexity as defined in computer science [LV08], but also to the frequency of naturally occurring patterns [HGS10]. However, the possible mediational role of natural frequencies in the perception of algorithmic complexity...

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