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

Bilateral tactile agnosia: a case report

J Nakamura1, K Endo, T Sumida

  • 1Department of Neuropsychology, Izu Nirayama Rehabilitation Hospital, Shizuoka, Japan.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|July 21, 1998
PubMed
Summary

This study details a patient with bilateral tactile agnosia, a deficit in recognizing objects by touch. Subcortical lesions in the angular gyrus were identified as the cause.

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

Characterization of ocular pharmacokinetics of beta-blockers using a diffusion model after instillation.

Pharmaceutical research·1999
Same author

[Treatment policy for colon cancer liver metastases].

Gan to kagaku ryoho. Cancer & chemotherapy·1999
Same author

[Evaluation of the usefulness of a serodiagnosis kit, the determiner TBGL antibody for tuberculosis: setting reference value].

Kekkaku : [Tuberculosis]·1999
Same author

Schizophrenia and bladder stones.

The Australian and New Zealand journal of psychiatry·1999
Same author

[Clinical analysis of pneumonia in the elderly in a community hospital--comparison of community-acquired pneumonia and nosocomial pneumonia].

Kansenshogaku zasshi. The Journal of the Japanese Association for Infectious Diseases·1999
Same author

Photodynamic therapy using mono-L-aspartyl chlorin e6 for rabbit experimental hepatoma.

Journal of hepato-biliary-pancreatic surgery·1999

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neurology

Background:

  • Tactile agnosia is characterized by the inability to recognize objects by touch.
  • Understanding the neural correlates of tactile recognition is crucial for diagnosing and treating sensory processing disorders.

Observation:

  • A 64-year-old male presented with bilateral tactile recognition deficits, diagnosed as tactile agnosia.
  • The patient exhibited preserved hylognosis (texture recognition) and morphognosis (shape recognition) but struggled with semantic object association.

Findings:

  • Bilateral subcortical lesions in the angular gyrus were identified as the cause of the patient's tactile agnosia.
  • These findings support the hypothesis that tactile agnosia results from a disconnection between the somatosensory association cortex and semantic memory stores.

Implications:

  • The severity and error types in tactile agnosia may correlate with the extent of damage in the tactual-semantic pathway.
  • This research contributes to understanding the neuroanatomy of tactile object recognition and semantic processing.

Related Experiment Videos