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Language and Cognition01:27

Language and Cognition

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.
Language Development01:22

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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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Learning Disabilities01:25

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Learning disabilities are cognitive disorders caused by neurological impairments that affect cognitive functions like language and reading, without indicating overall intellectual or developmental challenges. These disabilities differ from global intellectual or developmental disabilities as they are limited to distinct cognitive functions. Common learning disabilities include dysgraphia, dyslexia, and dyscalculia, each of which impacts unique aspects of learning.
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Causes of Similarity-Dissimilarity Effect01:26

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The similarity-dissimilarity effect, a fundamental concept in social psychology, explains how interpersonal similarities and differences influence attraction and social interactions. This effect is supported by three key psychological perspectives: balance theory, social comparison theory, and consensual validation.Balance Theory and Cognitive ConsistencyBalance theory, developed by Fritz Heider, posits that individuals seek cognitive consistency in their relationships. When two people share...

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Related Experiment Video

Updated: May 11, 2026

Transcranial Direct Current Stimulation (tDCS) of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition
12:49

Transcranial Direct Current Stimulation (tDCS) of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition

Published on: July 13, 2019

Gradient phonological inconsistency affects vocabulary learning.

Kristin L Muench1, Sarah C Creel

  • 1Department of Cognitive Science.

Journal of Experimental Psychology. Learning, Memory, and Cognition
|May 8, 2013
PubMed
Summary
This summary is machine-generated.

Language learners struggle with phonologically inconsistent input from multiple accents. Vocabulary acquisition slows when sound differences exceed one feature, impacting learning from varied speech.

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Last Updated: May 11, 2026

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Published on: October 11, 2018

Area of Science:

  • Psycholinguistics
  • Speech Perception
  • Language Acquisition

Background:

  • Learners encounter phonologically inconsistent input, like multiple accents, but its impact on language learning is unclear.
  • Previous research suggests learners can extract consistent patterns from variable input.

Purpose of the Study:

  • To investigate how phonological inconsistency affects vocabulary acquisition.
  • To determine the effects of varying degrees of inconsistency and phonological competition.

Main Methods:

  • Experiment 1: Adults learned vocabularies with varying degrees of phonological inconsistency.
  • Experiment 2: Assessed word-form inconsistency without phonological competition, comparing learning across one vs. two accents.

Main Results:

  • Adults learned inconsistent vocabularies slower than consistent ones.
  • Learning was slower with two accents than one, but faster when forms were similar (/vig/ = /vIg/) than distinct (/vig/ = /dIdʒ/).
  • Difficulty increased when forms differed by more than one phonological feature and with greater phonological competition.

Conclusions:

  • Phonological inconsistency, especially significant form differences and competition, hinders vocabulary acquisition.
  • Learners face challenges with variable input when multiple accents introduce substantial phonetic variation.