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Insight without cortex: lessons from the avian brain.

Janina A Kirsch1, Onur Güntürkün, Jonas Rose

  • 1Department of Biopsychology, Institute of Cognitive Neuroscience, Faculty of Psychology, Ruhr-University Bochum, 44780 Bochum, Germany. Janina.Kirsch@ruhr-uni-bochum.de

Consciousness and Cognition
|April 29, 2008
PubMed
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Corvids exhibit insightful behaviors like tool use and episodic memory, challenging the notion that insight is exclusive to primates. This suggests convergent evolution of cognitive abilities in birds and mammals, independent of a neocortex.

Area of Science:

  • Cognitive Neuroscience
  • Comparative Psychology
  • Evolutionary Biology

Background:

  • Insight, a complex cognitive function, is traditionally attributed to the mammalian neocortex and primates.
  • This view limits understanding of higher cognitive processes in other species.

Purpose of the Study:

  • To investigate the presence of insight-related cognitive skills in corvids.
  • To explore the neural basis of insight beyond the mammalian neocortex.

Main Methods:

  • Behavioral analysis of corvids in domains including object permanence, episodic memory, theory of mind, and tool use.
  • Comparative analysis of avian and mammalian telencephalic structures involved in cognition.

Main Results:

Related Experiment Videos

  • Corvids demonstrate sophisticated behaviors indicative of insight, comparable to primates.
  • Convergent evolution is proposed as the mechanism for these shared cognitive abilities.
  • Similarities in telencephalic structures support cognitive function in birds, despite lacking cortical lamination.

    • Conclusions:

    • Insight is not exclusive to mammals or primates.
    • A laminated cortex is not a prerequisite for high-level cognitive functions like insight.
    • Convergent evolution plays a significant role in the development of complex cognition across diverse species.