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Arthropod Intelligence? The Case for Portia.

Fiona R Cross1,2, Georgina E Carvell3, Robert R Jackson1,2

  • 1School of Biological Sciences, University of Canterbury, Christchurch, New Zealand.

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|November 6, 2020
PubMed
Summary
This summary is machine-generated.

This study challenges the vertebrate-centric view of animal intelligence, proposing a continuum of cognitive abilities. Research on Portia spiders suggests complex problem-solving, positioning them as advanced "Popperian" cognitive creatures.

Keywords:
arthropodcognitionintelligenceproblem solvingrepresentationspider

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Area of Science:

  • Comparative cognition
  • Animal behavior
  • Invertebrate intelligence

Background:

  • Macphail's "null hypothesis" on intelligence differences in vertebrates is debated.
  • Limiting intelligence studies to vertebrates is arbitrary.
  • Portia spiders exhibit complex predatory strategies and problem-solving skills.

Purpose of the Study:

  • To explore cognitive capacities beyond vertebrates, focusing on Portia spiders.
  • To examine evidence for innate cognitive abilities and internal representation in Portia.
  • To propose a continuum model for intelligence and cognition.

Main Methods:

  • Review of existing research on Portia's problem-solving abilities.
  • Analysis of studies on pre-planned detours, expectancy violation, and confinement problems.
  • Application of Daniel Dennett's "four Creatures" framework to Portia's cognition.

Main Results:

  • Experimental evidence indicates innate cognitive capacities and reliance on internal representation in Portia spiders.
  • Portia spiders demonstrate flexible problem-solving, particularly in navigating complex predatory scenarios.
  • Portia spiders align with the characteristics of "Popperian Creatures," exhibiting distinctively cognitive problem-solving.

Conclusions:

  • Cognitive abilities exist on a continuum, applicable across diverse species, not just vertebrates.
  • Portia spiders display sophisticated cognitive traits, challenging traditional views of invertebrate intelligence.
  • The "Popperian Creature" model offers a useful framework for understanding advanced animal cognition.