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

Referential communication in Alzheimer's type dementia.

Sergio Carlomagno1, Anna Santoro, Antonella Menditti

  • 1Department of Psychology, University of Trieste, Italy. carloma@psico.univ.trieste.it

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|July 27, 2005
PubMed
Summary

Patients with Alzheimer's Type Dementia (DAT) exhibit reduced information content and reference in speech, primarily due to pragmatic/conceptual elaboration deficits, not just lexical issues.

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

Correction: Role of Electrocardiogram for the Detection of Cardiac Diseases in a Healthy Primary School Population: Data from the "Cuore e Scuola" Study.

Pediatric cardiology·2026
Same author

A multilevel linguistic analysis reveals linguistic impairments in persons with multiple sclerosis.

Journal of communication disorders·2026
Same author

Mixed endometrial carcinoma: is it time to profile the two components separately?

Frontiers in oncology·2026
Same author

Bevacizumab and Paclitaxel in Advanced, Hormone Receptor-Positive Breast Cancer: Multifactor Dimensionality Reduction Methodology to Identify Best Overall Survival.

Oncology research·2026
Same author

Role of Electrocardiogram for the Detection of Cardiac Diseases in a Healthy Primary School Population: Data from the "Cuore e Scuola" Study.

Pediatric cardiology·2026
Same author

Femtosecond self-diffraction as a measure of the nonlinear response spectrum.

Optics letters·2026

Area of Science:

  • Neurolinguistics
  • Cognitive Psychology
  • Geriatric Medicine

Background:

  • Alzheimer's Type Dementia (DAT) is characterized by cognitive decline, impacting communication.
  • Patients with DAT often exhibit reduced informative content and difficulty with reference in their discourse.
  • Understanding the underlying linguistic and cognitive factors is crucial for effective intervention.

Purpose of the Study:

  • To investigate the factors contributing to reduced information content and lack of reference in the discourse of patients with DAT.
  • To differentiate between lexical encoding deficits and pragmatic/conceptual elaboration impairments in DAT.
  • To explore the relationship between attentional/executive functions and communication effectiveness in DAT.

Main Methods:

  • A referential communication task was administered to patients with DAT, fluent aphasics, and normal controls.

Related Experiment Videos

  • Standardized aphasia tests, including the Communicative Abilities in Daily Living (CADL) and Cookie Theft Picture Description, were used.
  • Discourse analysis focused on lexical encoding, pragmatic/conceptual elaboration, and reference establishment.

    • Main Results:

    • Comparable reductions in lexical encoding were observed in both aphasic and DAT participants.
    • DAT subjects were less efficient in establishing reference, showing more misunderstandings and requiring listener prompts.
    • DAT discourse contained confounding and irrelevant information, negatively correlating with referring abilities.

    Conclusions:

    • Difficulty in pragmatic/conceptual elaboration significantly contributes to reduced information content and reference in DAT speech.
    • Lexical encoding deficits alone do not fully explain the communicative ineffectiveness observed in DAT.
    • Findings support the hypothesis of early attentional/executive impairment in DAT impacting discourse.