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Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
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The preoperational stage, the second of Jean Piaget's four stages of cognitive development, spans approximately ages 2 to 7 and is characterized by the emergence of symbolic thinking. During this stage, children use language, images, and symbols to represent objects and concepts, enabling them to engage in imaginative and pretend play. This symbolic thinking supports children's ability to perform make-believe actions, such as imagining a broom as a horse or their hand as a phone,...
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A Method for Investigating Change Blindness in Pigeons Columba Livia
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Why birds are smart.

Onur Güntürkün1, Roland Pusch2, Jonas Rose3

  • 1Biopsychology, Institute of Cognitive Neuroscience, Faculty of Psychology, Ruhr University Bochum, 44780 Bochum, Germany; Research Center One Health Ruhr, Research Alliance Ruhr, Ruhr University Bochum, Bochum, Germany.

Trends in Cognitive Sciences
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Summary
This summary is machine-generated.

Complex cognition in birds and apes may stem from shared neural features, not just brain size. Convergent evolution of these traits suggests they are key for advanced cognitive abilities.

Keywords:
cognitionevolutionmammalsneuron numberpalliumprefrontal cortex

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Comparative Psychology

Background:

  • The traditional view links complex cognition to large brain size and an isocortex.
  • Birds (corvids, parrots) and great apes exhibit comparable cognitive skills despite vast differences in brain size and structure.
  • Bird brains range from 1-25g, while ape brains are around 400g.

Purpose of the Study:

  • To explore the neural basis of complex cognition in species with vastly different brain structures.
  • To propose key neural features enabling advanced cognitive abilities.
  • To investigate the role of convergent evolution in cognitive equivalence.

Main Methods:

  • This study is an opinion piece, synthesizing existing research and proposing a theoretical framework.
  • It analyzes the neuroanatomy and neurophysiology of cognitive abilities in birds and mammals.
  • The authors identify potential neural correlates of complex cognition.

Main Results:

  • Four key neural features are proposed to be essential for complex cognition: numerous associative pallial neurons, a prefrontal cortex (PFC)-like area, dense dopaminergic innervation in association areas, and dynamic neurophysiological mechanisms for working memory.
  • These features may have evolved convergently in species with different brain architectures.
  • The presence of these features, rather than absolute brain size or cortical structure, could explain cognitive equivalence.

Conclusions:

  • Complex cognition is not solely dependent on a large brain or an isocortex.
  • Convergent evolution of specific neural features provides a potential explanation for similar cognitive capacities in birds and apes.
  • These identified neural mechanisms represent fundamental, potentially "hard to replace," components for advanced cognition.