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Related Concept Videos

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.
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Subliminal Perception01:15

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Related Experiment Video

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Comparing the Frequency Effect Between the Lexical Decision and Naming Tasks in Chinese
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Word Type and Frequency Effects on Lexical Decisions Are Process-dependent and Start Early.

Joshua Krause1, Jacolien van Rij1, Jelmer P Borst1

  • 1University of Groningen.

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Summary

Word frequency impacts all stages of lexical decisions (LDs), from early visual processing to later decision-making. This effect varies by processing stage and word type, influencing both real words and nonwords.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Computational Linguistics

Background:

  • Lexical decisions (LDs) involve rapidly determining if a letter string is a word.
  • Word frequency is known to influence LD speed, affecting both early and late processing stages.
  • Previous research indicates frequency effects extend to nonword processing.

Purpose of the Study:

  • To provide a detailed account of frequency effects across different stages of lexical decisions.
  • To differentiate the impact of word and nonword frequency on distinct processing stages.
  • To investigate the temporal dynamics of frequency effects during word recognition.

Main Methods:

  • Utilized hidden semi-Markov models and multivariate pattern analysis on EEG data to segment LDs into processing stages.
  • Employed generalized additive mixed models to analyze the influence of continuous word and nonword frequency across identified stages.
  • Identified six distinct processing stages, including substages specific to pseudowords.

Main Results:

  • Frequent words were processed faster in early visual stages, while word-like nonwords took longer.
  • Later processing stages revealed frequency-dependent orthographic familiarity assessment and decision-making.
  • Frequency effects differed in magnitude and direction across processing stages and between word types.

Conclusions:

  • Word frequency significantly influences all stages of lexical decision-making.
  • The impact of frequency is stage-specific and word-type dependent, affecting both real words and nonwords.
  • This study elucidates the complex, multi-stage nature of frequency effects in word recognition.