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Related Experiment Video

Updated: Mar 7, 2026

Longitudinal In Vivo Imaging of the Cerebrovasculature: Relevance to CNS Diseases
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Visuospatial Functioning in Cerebral Amyloid Angiopathy: A Pilot Study.

Raffaella Valenti1,2, Andreas Charidimou1, Li Xiong1

  • 1Department of Neurology, Hemorrhagic Stroke Research Program, Massachusetts General Hospital Stroke Research Center, Harvard Medical School, Boston, MA, USA.

Journal of Alzheimer'S Disease : JAD
|February 23, 2017
PubMed
Summary

Cerebral amyloid angiopathy (CAA) contributes to cognitive decline. This study found visual-processing deficits in non-demented CAA patients, linked to disease severity and brain injury.

Keywords:
Cerebral amyloid angiopathyneuroimaging markersneuropsychological assessmentvisuospatial functioning

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Area of Science:

  • Neurology
  • Neuroscience
  • Geriatrics

Background:

  • Cerebral amyloid angiopathy (CAA) is a significant factor in age-related cognitive impairment.
  • The posterior cortical distribution of CAA suggests a potential link to visual processing deficits.

Purpose of the Study:

  • To investigate the presence and nature of visual-processing impairments in non-demented individuals with CAA.
  • To explore the relationship between visuospatial abilities and neuroimaging markers in CAA patients.

Main Methods:

  • Systematic evaluation of visuospatial abilities in 22 non-demented CAA patients.
  • Neurocognitive testing including the Benton Facial Recognition Test (BFRT) and Benton Judgment of Line Orientation Test (BJLO).
  • Correlation analysis with white matter hyperintensities volume and parietal cerebral microbleeds.

Main Results:

  • Visuoperceptual impairment was observed in 23% (BFRT) and 13.6% (BJLO) of the participants.
  • BFRT performance showed an inverse correlation with white matter hyperintensities.
  • BJLO performance was inversely correlated with parietal cerebral microbleeds.

Conclusions:

  • This pilot study indicates that visual-processing deficits are present in individuals with cerebral amyloid angiopathy.
  • These impairments may be associated with the overall severity of the disease and localized brain damage.