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Geniculocalcarine hyperintensities on brain magnetic resonance imaging associated with visual hallucinations in the elderly.

Publication ,  Journal Article
Shedlack, KJ; McDonald, WM; Laskowitz, DT; Krishnan, KR
Published in: Psychiatry Res
December 1994

Magnetic resonance scans of five geriatric patients presenting with formed visual hallucinations in the absence of other psychopathology were compared with those of 12 healthy elderly subjects for the presence and extent of subcortical and periventricular signal hyperintensity. While the number of discrete brain lesions did not differ between groups, scans from the patient group contained a higher incidence (100% vs. 50%) and greater mean size (11.1 vs. 2.9 mm) of periventricular signal hyperintensity in the posterior region. Peripheral visual acuity was impaired in all of the patients, but cerebrovascular risk factors were not elevated in this group. The authors suggest that structural abnormalities in the area of the primary visual pathway may predispose some older individuals, particularly those with poor peripheral visual acuity, to develop the symptom of visual hallucination.

Duke Scholars

Published In

Psychiatry Res

DOI

ISSN

0165-1781

Publication Date

December 1994

Volume

54

Issue

3

Start / End Page

283 / 293

Location

Ireland

Related Subject Headings

  • Visual Perception
  • Visual Pathways
  • Visual Cortex
  • Visual Acuity
  • Risk Factors
  • Reference Values
  • Psychiatry
  • Neural Inhibition
  • Male
  • Magnetic Resonance Imaging
 

Citation

APA
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ICMJE
MLA
NLM
Shedlack, K. J., McDonald, W. M., Laskowitz, D. T., & Krishnan, K. R. (1994). Geniculocalcarine hyperintensities on brain magnetic resonance imaging associated with visual hallucinations in the elderly. Psychiatry Res, 54(3), 283–293. https://doi.org/10.1016/0165-1781(94)90022-1
Shedlack, K. J., W. M. McDonald, D. T. Laskowitz, and K. R. Krishnan. “Geniculocalcarine hyperintensities on brain magnetic resonance imaging associated with visual hallucinations in the elderly.Psychiatry Res 54, no. 3 (December 1994): 283–93. https://doi.org/10.1016/0165-1781(94)90022-1.
Shedlack KJ, McDonald WM, Laskowitz DT, Krishnan KR. Geniculocalcarine hyperintensities on brain magnetic resonance imaging associated with visual hallucinations in the elderly. Psychiatry Res. 1994 Dec;54(3):283–93.
Shedlack, K. J., et al. “Geniculocalcarine hyperintensities on brain magnetic resonance imaging associated with visual hallucinations in the elderly.Psychiatry Res, vol. 54, no. 3, Dec. 1994, pp. 283–93. Pubmed, doi:10.1016/0165-1781(94)90022-1.
Shedlack KJ, McDonald WM, Laskowitz DT, Krishnan KR. Geniculocalcarine hyperintensities on brain magnetic resonance imaging associated with visual hallucinations in the elderly. Psychiatry Res. 1994 Dec;54(3):283–293.
Journal cover image

Published In

Psychiatry Res

DOI

ISSN

0165-1781

Publication Date

December 1994

Volume

54

Issue

3

Start / End Page

283 / 293

Location

Ireland

Related Subject Headings

  • Visual Perception
  • Visual Pathways
  • Visual Cortex
  • Visual Acuity
  • Risk Factors
  • Reference Values
  • Psychiatry
  • Neural Inhibition
  • Male
  • Magnetic Resonance Imaging