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Sign Test for Matched Pairs

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Related Experiment Video

Updated: May 6, 2026

Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment

Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment

Published on: June 25, 2019

Evidence for lexical access in a simultaneous matching task.

S M Chambers¹, K I Forster

¹Department of Psychology, Monash University, 3168, Clayton, Australia, Victoria.

Memory & Cognition

|November 9, 2013

Summary

This summary is machine-generated.

This study shows that matching words involves accessing our mental dictionary (lexical access). Familiar words are recognized faster than less familiar ones, suggesting a search process.

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Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

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Published on: June 29, 2021

Area of Science:

Cognitive Psychology
Psycholinguistics
Human Information Processing

Background:

Understanding how humans process visual information, particularly words, is crucial in cognitive science.
Previous research suggests different processing speeds for various linguistic stimuli.

Purpose of the Study:

To investigate the role of lexical access in visual word recognition.
To determine if word frequency influences reaction times in a matching task.
To explore the multi-level processing of letter strings.

Main Methods:

Participants performed a simultaneous visual matching task with four types of stimuli: high-frequency words, low-frequency words, legal nonwords, and random letter strings.
Reaction times were recorded for each stimulus type.
A second experiment examined processing for both identical and differing stimuli.

Main Results:

Words were processed significantly faster than legal nonwords, supporting the involvement of lexical access.
High-frequency words yielded faster reaction times than low-frequency words, indicating a lexical search mechanism.
Evidence suggests simultaneous processing at word, letter cluster, and letter levels.

Conclusions:

Visual word matching involves accessing stored lexical information.
Word frequency impacts processing speed, consistent with a lexical search model.
A multi-level processing framework, operating simultaneously, explains the observed reaction times.