Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Are there lexicons?

Max Coltheart1

  • 1Macquarie University, Sydney, Australia. max@maccs.mq.edu.au

The Quarterly Journal of Experimental Psychology. A, Human Experimental Psychology
|October 30, 2004
PubMed
Summary
This summary is machine-generated.

Localist models, not distributed ones, better explain how people perform lexical and object decision tasks. Evidence suggests semantic access is not required for normal task performance, supporting local representations.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Delusional belief about location ("reduplicative paramnesia").

Cognitive neuropsychiatry·2024
Same author

Visual hallucinations of autobiographical memories: a single-case study.

Cognitive neuropsychiatry·2024
Same author

Koro: a socially-transmitted delusional belief.

Cognitive neuropsychiatry·2024
Same author

Cotard delusion, emotional experience and depersonalisation.

Cognitive neuropsychiatry·2022
Same author

How can the perception of orientation be systematically wrong?

Cognitive neuropsychology·2022
Same author

What is Capgras delusion?

Cognitive neuropsychiatry·2021
Same journal

Relations between emotion, illusory word perception, and orthographic repetition blindness: tests of binding theory.

The Quarterly journal of experimental psychology. A, Human experimental psychology·2005
Same journal

Causal and noncausal conditionals: an integrated model of interpretation and reasoning.

The Quarterly journal of experimental psychology. A, Human experimental psychology·2005
Same journal

Phonological similarity effects in verbal complex span.

The Quarterly journal of experimental psychology. A, Human experimental psychology·2005
Same journal

By which name should I call thee? The consequences of having multiple names.

The Quarterly journal of experimental psychology. A, Human experimental psychology·2005
Same journal

Stimulus similarity decrements in children's working memory span.

The Quarterly journal of experimental psychology. A, Human experimental psychology·2005
Same journal

Lag-1 sparing in the attentional blink: benefits and costs of integrating two events into a single episode.

The Quarterly journal of experimental psychology. A, Human experimental psychology·2005
See all related articles

Area of Science:

  • Cognitive Science
  • Neuroscience
  • Psycholinguistics

Background:

  • Cognitive models debate whether information is stored in local or distributed representations.
  • Lexical decision and object decision tasks are crucial for testing these models.
  • Localist models propose direct matching to stored representations (lexicons).

Purpose of the Study:

  • To evaluate how localist and distributed representation models account for lexical and object decision tasks.
  • To determine the necessity of semantic access for normal performance in these tasks.

Main Methods:

  • Theoretical analysis comparing localist and distributed representation accounts.
  • Review of existing literature on patients with impaired semantic systems performing decision tasks.

Related Experiment Videos

Main Results:

  • Localist models explain decision tasks via stimulus-to-lexicon matching.
  • Distributed models predict impaired performance without normal semantic access.
  • Literature shows patients with semantic impairments can still perform these tasks normally.

Conclusions:

  • Empirical evidence contradicts the predictions of distributed representation models.
  • Normal performance in lexical and object decision tasks does not require semantic access.
  • Findings support localist models of cognitive representation over distributed ones.