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Related Concept Videos

Language01:16

Language

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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.
Corballis and Suddendorf (2007) and Tomasello and Rakoczy (2003) highlight the role of language in...
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Higher Mental Functions of the Brain: Language01:10

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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.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
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Components of Language01:24

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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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Language Development01:22

Language Development

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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.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
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Language and Cognition01:27

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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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Switching Language Modes: Complementary Brain Patterns for Formulaic and Propositional Language.

John J Sidtis1,2, Diana Van Lancker Sidtis1,3, Vijay Dhawan4

  • 11 Brain and Behavior Laboratory, The Nathan Kline Institute for Psychiatric Research , Orangeburg, New York.

Brain Connectivity
|January 24, 2018
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Summary
This summary is machine-generated.

Novel and formulaic language processing involve distinct brain regions. This study reveals separate neural substrates for propositional and formulaic speech, highlighting integrated brain networks for normal communication.

Keywords:
basal ganglialanguagelateralityperformance-based analysispositron emission tomographyspeech formulas

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Area of Science:

  • Neuroscience
  • Linguistics
  • Cognitive Science

Background:

  • Traditional language models focus on propositional, rule-governed utterances.
  • Formulaic expressions (e.g., idioms, greetings) play a significant role in natural communication.
  • Previous research suggests distinct neural lateralization for propositional (left) and formulaic (right/basal ganglia) language.

Purpose of the Study:

  • To investigate the neural substrates underlying formulaic and propositional language during spontaneous speech.
  • To identify distinct patterns of cerebral blood flow (CBF) associated with different language modes.

Main Methods:

  • Positron emission tomography (PET) scanning was used to measure CBF in 16 healthy adults during language tasks.
  • Participants performed phonological/lexical repetition and spontaneous monologue tasks.
  • Analysis focused on cortical-subcortical brain activity patterns.

Main Results:

  • Repetition of phonological/lexical items showed increased CBF in the left inferior frontal region and decreased CBF in the right caudate nucleus.
  • Use of formulaic expressions during monologue was linked to increased CBF in the right inferior frontal region and decreased CBF in the left caudate nucleus.
  • Propositional language during monologue demonstrated strong left lateralization (increased left, decreased right inferior frontal CBF).

Conclusions:

  • Normal human communication integrates two distinct language modes: novel (propositional) and formulaic.
  • These two modes are supported by different neural substrates, involving complementary cortical-subcortical networks.
  • Understanding these distinct neural pathways is crucial for a comprehensive model of language processing.