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Related Concept Videos

Language and Cognition01:27

Language and Cognition

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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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Language01:16

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Language is a unique communication system that uses words and systematic rules to organize and transmit information. Unlike other forms of communication, which may involve postures, movements, odors, or vocalizations, language relies on symbols and grammar. This makes human communication distinct from that of other species, who also communicate but do not use language in the same way humans do.
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Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
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Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
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Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
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Language, whether spoken, signed, or written, consists of specific components: lexicon and grammar. The lexicon is the vocabulary of a language, comprising its words. Grammar is the set of rules used to convey meaning through the lexicon. For example, English grammar adds “-ed” to most verbs to indicate past tense. Words are formed by combining phonemes, which are the basic sound units of a language. Different languages have different sets of phonemes (e.g., “ah” vs.
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Related Experiment Video

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Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization
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The evolution of language and thought.

Philip Lieberman1

  • 1Brown University, Cognitive, Linguistic and Psychological Sciences, Providence RI 02912, USA, Philip.Lieberman@gmail.com.

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Human language evolved gradually, utilizing recycled neural circuits for complex cognitive functions like working memory and syntax comprehension. This challenges the idea of a distinct language organ and recent origins for language capabilities.

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Area of Science:

  • Neuroscience
  • Evolutionary Biology
  • Linguistics

Background:

  • Language evolved as a vocal medium for culture and communication, with a complex evolutionary history.
  • Neural circuits for motor control were repurposed for cognitive tasks like working memory and syntax.
  • The human brain lacks a single, exclusive language organ, contrary to some theories.

Observation:

  • Subcortical basal ganglia, traceable to early anurans, link with prefrontal and posterior cortical regions.
  • These circuits are active in lexical access, syntactic comprehension, and executive functions.
  • The cingulate cortex, an ancient structure, aids mother-infant interaction, phonation control, and attention.

Findings:

  • Natural selection over 500,000 years enhanced human cognitive and linguistic abilities.
  • Evidence suggests Neanderthals possessed some form of language, predating recent origin claims.
  • Complex cognitive processes like associative learning, crucial for language acquisition, are present in many animals.

Implications:

  • Human language evolved gradually, not suddenly, over a long period.
  • Understanding the neural basis of language requires examining ancient, repurposed brain circuits.
  • The evolutionary perspective challenges theories proposing a recent, singular origin for language and syntax.