Olfactory thresholds are associated with degree of dementia in Alzheimer's disease

  • Murphy C
  • Gilmore M
  • Seery C
 et al. 
  • 50


    Mendeley users who have this article in their library.
  • 228


    Citations of this article.


Recent neuroanatomical studies have noted that regions of the olfactory pathways contain high levels of neuritic plaques and neurofibrillary tangles, pathological hallmarks of Alzheimer's disease; and that the olfactory epithelium, the most peripheral level of the system, exhibits anatomical and biochemical changes in Alzheimer's disease. The present experiments investigated thresholds for olfactory and taste stimuli in patients with Probable Alzheimer's disease. Olfactory thresholds of Alzheimer's patients were significantly elevated relative to controls and were significantly correlated with scores on dementia scales. Taste thresholds of Alzheimer's patients were within normal limits and unrelated to scores on dementia scales. These results suggest that increased olfactory thresholds in patients with Alzheimer's disease reflect the effects of the disease process and, thus, may aid in the diagnosis and in the understanding of Alzheimer's disease. © 1990.

Author-supplied keywords

  • Alzheimer's disease
  • Dementia
  • Olfaction
  • Olfactory dysfunction
  • Olfactory sensitivity
  • Olfactory threshold

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Claire Murphy

  • Magdalena M. Gilmore

  • Catherine S. Seery

  • David P. Salmon

  • Bruce R. Lasker

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free