Amodal completion by baboons (Papio papio): contribution of background depth cues


  • Fagot J
  • Barbet I
  • Parron C
  • Deruelle C

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Four baboons (Papio papio) were tested in a computerized two-alternative forced choice task in which partially occluded graphic Stimuli were shown either on linear perspective backgrounds depicting a corridor or on uniformly black backgrounds. The results indicated that baboons complete partly Occluded stimuli and that amodal completion is facilitated by the display of pictorial background depth Cues. Inter-individual differences emerged in the ability to extrapolate three dimensional information from two-dimensional visual information.

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