The role of pre-experience in problem-solving comparing four great ape species (<em>Pan troglodytes, Pan paniscus, Pongo abelii, Gorilla gorilla</em>) — ASN Events

The role of pre-experience in problem-solving comparing four great ape species (Pan troglodytes, Pan paniscus, Pongo abelii, Gorilla gorilla) (#618)

Sonja Ebel 1 2 , Josep Call 1 3
  1. Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
  2. University of Bielefeld, Bielefeld, Germany
  3. University of St. Andrews, St. Andrews, Scotland

Many nonhuman primates in captivity are very keen on exploring objects in their environment. However, few studies have investigated if nonhuman primates gain information in a non-rewarded situation that can later be used once conditions change. Active testing of the effects that an object can have on another may be especially important in enhancing problem-solving abilities in future situations. In this study, four great ape species were confronted with the collapsible platform task (Bird & Emery 2009, von Bayern et al. 2009). This task required subjects to drop a stone inside a tube to collapse a platform that released a reward. Subjects received four successive sessions with the baited apparatus and four with an empty apparatus counterbalanced for order of presentation across subjects. Seventy-six percent of the apes solved the task. Apes which had pre-experience with the empty condition were faster in the baited condition than apes without this pre-experience. This study suggests that apes exposed to an empty apparatus prior to the test gain information that is later used to solve problems in a more efficient manner.

  1. Bird, CD; Emery, NJ (2009). Insightful problem solving and creative tool modification by captive nontool-using rooks. PNAS, 106(25):10370-10375.
  2. von Bayern, AMP; Heathcote, RJP; Rutz, C; Kacelnik, A (2009). The role of experience in problem solving and innovative tool use in crows. Curr Biol, 19(22), 1965-1968.