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Related Concept Videos

Components of Language01:24

Components of Language

691
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.
691
Time and frequency -Domain Interpretation of Phase-lag Control01:21

Time and frequency -Domain Interpretation of Phase-lag Control

364
Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any...
364
Language and Cognition01:27

Language and Cognition

658
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.
658
Language Development01:22

Language Development

767
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...
767
Time and frequency -Domain Interpretation of Phase-lead Control01:24

Time and frequency -Domain Interpretation of Phase-lead Control

398
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
398
Interference: Path Lengths01:10

Interference: Path Lengths

1.8K
Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
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Related Experiment Video

Updated: Jan 1, 2026

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
09:09

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

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Phase synchronization varies systematically with linguistic structure composition.

Jonathan R Brennan1, Andrea E Martin2,3

  • 1Department of Linguistics, University of Michigan, Ann Arbor, MI, USA.

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
|December 17, 2019
PubMed
Summary
This summary is machine-generated.

Neural phase synchronization increases with linguistic complexity, supporting compositional meaning construction. This brain activity, particularly in delta, theta, and gamma bands, highlights the role of neural oscillations in language processing.

Keywords:
compositionalityelectroencephalographylanguagenaturalistic language processingneural oscillationsphase synchronization

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Area of Science:

  • Neuroscience
  • Computational Linguistics
  • Cognitive Science

Background:

  • Neuronal computation involves excitatory and inhibitory cycles.
  • Phase synchronization in neural activity is linked to information integration across timescales in speech and language processing.
  • Previous work suggests phase synchronization supports inference of abstract linguistic structures.

Purpose of the Study:

  • To investigate if phase synchronization, specifically inter-trial phrase coherence and cross-frequency coupling (CFC), changes with accumulating linguistic structures.
  • To assess the relationship between linguistic structure and phase alignment using electroencephalography (EEG) data during naturalistic story listening.
  • To explore how phase synchronization in different frequency bands (delta, theta, gamma) relates to the accrual of compositional meaning.

Main Methods:

  • Utilized a naturalistic story-listening EEG dataset.
  • Analyzed phase synchronization, including inter-trial phrase coherence and cross-frequency coupling (CFC) between gamma bursts and delta/theta carrier signals.
  • Quantified phase alignment in relation to phrase counts and linguistic structure complexity.

Main Results:

  • Observed increased phase synchronization across delta, theta, and gamma bands as a function of phrase counts, particularly for function words.
  • Found a more complex pattern for cross-frequency coupling (CFC) with changing phrase counts.
  • Results suggest that phase synchronization and desynchronization (inhibition) are crucial for building compositional meaning.

Conclusions:

  • Phase synchronization plays a significant role in the brain's construction of compositional meaning.
  • The findings emphasize the importance of neural oscillations and their coordination in linguistic processing.
  • The study contributes to understanding the neural mechanisms underlying meaning composition in distributed brain networks.