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

Visual agnosia.

M Jane Riddoch1, Glyn W Humphreys

  • 1Brain and Behavioural Sciences Centre, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK. m.j.riddoch@bham.ac.uk

Neurologic Clinics
|August 15, 2003
PubMed
Summary
This summary is machine-generated.

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

Visuospatial memory in apraxia: Exploring quantitative drawing metrics to assess the representation of local and global information.

Memory & cognition·2024
Same author

Intermediate, Wholistic Shape Representation in Object Recognition: A Pre-Attentive Stage of Processing?

Frontiers in human neuroscience·2022
Same author

Recovery of Visuospatial Neglect Subtypes and Relationship to Functional Outcome Six Months After Stroke.

Neurorehabilitation and neural repair·2021
Same author

Handgrip Based Action Information Modulates Attentional Selection: An ERP Study.

Frontiers in human neuroscience·2021
Same author

Attentional saliency and ingroup biases: From society to the brain.

Social neuroscience·2020
Same author

Cultural Orientation of Self-Bias in Perceptual Matching.

Frontiers in psychology·2019
Same journal

Sports Neurology.

Neurologic clinics·2026
Same journal

Sports-Related Peripheral Nerve Injuries.

Neurologic clinics·2026
Same journal

Active Rehabilitation and Return to Play in Sports-Related Concussion.

Neurologic clinics·2026
Same journal

Autonomic Assessment and Management in Sports-Related Concussion.

Neurologic clinics·2026
Same journal

Management of Vestibular Symptoms in Sports-Related Concussion.

Neurologic clinics·2026
Same journal

Neuropsychological Assessment in Sport-Related Concussion: Evidence, Controversies, and Clinical Applications.

Neurologic clinics·2026
See all related articles

Visual recognition deficits can stem from apperceptive or associative issues. Damage to stored knowledge or semantic access causes associative problems, impacting recognition and naming differently.

Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • Visual recognition is crucial for interacting with the environment.
  • Lissauer's original model proposed two levels of visual recognition breakdown: apperceptive and associative.

Observation:

  • Patients with visual recognition deficits do not always have impaired perception.
  • Deficits can arise from issues at the apperceptive level (shape recognition, perceptual integration) or associative level.

Findings:

  • Associative deficits result from damage to stored perceptual knowledge, impaired semantic knowledge access, or semantic impairments.
  • Mild damage to stored perceptual knowledge can disproportionately affect naming over recognition.
  • Object category can influence the severity of recognition and naming deficits.

Related Experiment Videos

Implications:

  • Understanding these distinct pathways is vital for diagnosing and treating visual agnosias.
  • This research refines models of visual processing and knowledge retrieval.
  • Differentiates between perceptual and knowledge-based recognition failures.