Orbitofrontal dysfunction discriminates behavioral variant frontotemporal dementia from Alzheimer's disease

M Hornberger, S Savage, S Hsieh, E Mioshi, O Piguet, J R Hodges

Research output: Contribution to journalArticlepeer-review

80 Citations (Scopus)

Abstract

BACKGROUND: Behavioral variant frontotemporal dementia (bvFTD) patients show prefrontal cortex dysfunction and atrophy.  

METHODS: We investigated whether executive function in conjunction with prefrontal cortex atrophy discriminates bvFTD and Alzheimer's disease (AD) patients efficiently at presentation.  

RESULTS: AD and bvFTD patients were distinguishable by 89.5% on their performance of 3 executive tasks: the Hayling Test of Inhibitory Control, Digit Span Backward and Letter Fluency. Similarly, scan ratings showed that orbitofrontal cortex (OFC) and dorsolateral prefrontal cortex regions distinguish both patient groups. More importantly, employing the Hayling error score in conjunction with the OFC atrophy rating showed that 92% of patients can be correctly classified into bvFTD and AD.  

CONCLUSION: A combination of OFC and disinhibition measures appears to be a powerful diagnostic tool in differentiating bvFTD from AD patients in this preliminary study.  

Original languageEnglish
Pages (from-to)547-552
Number of pages6
JournalDementia and Geriatric Cognitive Disorders
Volume30
Issue number6
DOIs
Publication statusPublished - 2010

Keywords

  • Aged
  • Alzheimer Disease
  • Behavior
  • Brain
  • Diagnosis, Differential
  • Executive Function
  • Female
  • Frontotemporal Dementia
  • Humans
  • Image Processing, Computer-Assisted
  • Magnetic Resonance Imaging
  • Male
  • Middle Aged
  • Neuropsychological Tests

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