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A Semantic Priming Event-related Potential ERP Task to Study Lexico-semantic and Visuo-semantic Processing in Autism Spectrum Disorder

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The Role of Co-Occurrence Statistics in Developing Semantic Knowledge.

Layla Unger¹, Catarina Vales², Anna V Fisher²

¹Department of Psychology, Ohio State University.

Cognitive Science

|September 15, 2020

Summary

Children learn semantic organization through environmental co-occurrence regularities. These statistical patterns, where items frequently appear together, help children form concept relations, impacting cognitive development.

Keywords:

Co-occurrence Conceptual development Semantic development Semantic organization Taxonomic Visual search

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Area of Science:

Cognitive Science
Developmental Psychology
Linguistics

Background:

Semantic knowledge organization is crucial for cognitive functions like memory and reasoning.
Understanding how children acquire organized semantic representations is essential.
Environmental statistical regularities are hypothesized to play a role in semantic organization.

Purpose of the Study:

To investigate the contribution of environmental co-occurrence regularities to semantic organization in childhood.
To determine if co-occurrence influences relations between concepts independently.
To assess if co-occurrence influences relations between concepts within the same taxonomic category.

Main Methods:

Utilized child-directed speech corpora to identify reliable co-occurrences between object labels.
Constructed stimulus triads (target, related distractor, unrelated distractor) based on co-occurrence and taxonomic relatedness.
Employed an implicit eye-gaze measure with 72 children (ages 4-7) to assess conceptual relations.

Main Results:

Co-occurrence regularities independently contribute to the formation of relations between concepts.
Co-occurrence regularities also contribute to relations between concepts belonging to the same taxonomic category.
Children's sensitivity to environmental co-occurrences shapes their developing semantic knowledge.

Conclusions:

Environmental statistical regularities, specifically co-occurrence, are a significant factor in childhood semantic organization.
Findings support the role of statistical learning in the development of conceptual networks.
The study provides insights into how children build structured knowledge from their environment.