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

Spatial alexia

A Ardila1, M Rosselli

  • 1Instituto Colombiano de Neuropsicologia, Bogota.

The International Journal of Neuroscience
|May 1, 1994
PubMed
Summary
This summary is machine-generated.

This study on right hemisphere damage reveals spatial alexia involves letter orientation issues, left neglect, and word/sentence completion tendencies. These reading deficits stem from challenges in processing spatial information in written text.

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

Effect of age, ethnicity, sex, cognitive status and APOE genotype on amyloid load and the threshold for amyloid positivity.

NeuroImage. Clinical·2019
Same author

Archives of gynecology and obstetrics·2016
Same author

Archives of gynecology and obstetrics·2016
Same author

Introduction: toward a historical/anthropological approach in neuropsychology.

Behavioural neurology·2014
Same author

Historical evolution of spatial abilities.

Behavioural neurology·2014
Same author

On the origins of calculation abilities.

Behavioural neurology·2014

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Linguistics

Background:

  • Right hemisphere damage (RHD) can lead to complex cognitive and linguistic deficits.
  • Reading impairments, or alexia, are not fully understood in the context of RHD, particularly concerning spatial processing.

Purpose of the Study:

  • To investigate the characteristics of spatial alexia in patients with right hemisphere damage.
  • To identify specific reading errors associated with different lesion locations within the right hemisphere.

Main Methods:

  • Twenty-one patients with right hemisphere damage were recruited and divided into pre-Rolandic and retro-Rolandic groups.
  • A specialized reading test was administered to assess various aspects of reading performance and error patterns.

Related Experiment Videos

Main Results:

  • Patients exhibited a range of errors including literal errors, pseudoword substitutions, left hemispatial neglect, confabulation, and word splitting.
  • Specific errors observed were grouping of letters from different words, misuse of punctuation, and difficulties in line tracking.
  • Proposed characteristics of spatial alexia include difficulties with letter spatial orientation, left hemispatial neglect, and word/sentence completion tendencies.

Conclusions:

  • Spatial alexia in right hemisphere damage is characterized by difficulties in spatial orientation of letters and left hemispatial neglect.
  • Inability to follow lines and sequentially explore text, along with word fragmentation, suggests issues in interpreting spatial relationships between letters and words.
  • These findings highlight the critical role of the right hemisphere in processing the spatial aspects of written language.