What psychotic symptoms are associated with dementia with Lewy bodies (DLB)?

Updated: Aug 08, 2019
  • Author: Howard A Crystal, MD; Chief Editor: Jasvinder Chawla, MD, MBA  more...
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Answer

Nagahama et al found that different types of psychotic symptoms in patients with DLB correlated with perfusion changes in different parts of the brain. Single-photon emission computed tomography (SPECT) scanning studies in 145 DLB patients revealed the following [9] :

  • Visual hallucinations - Were related to hypoperfusion of the parietal and occipital association cortices

  • Misidentifications - Were related to hypoperfusion of the limbic-paralimbic structures

  • Delusions - Were related to hyperperfusion of the frontal cortices


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