I have a reference for you: Title: Olfaction in neurodegenerative disease: A meta-analysis of olfactory functioning in Alzheimer's and Parkinson's diseases. Author(s): Mesholam, Raquelle I., Moberg, Paul J., Mahr, Richard N., Doty, Richard L. Source: Archives of Neurology, Vol 55(1), Jan 1998. pp. 84-90. Abstract: Reviewed the English-language literature on olfactory function in patients with Alzheimer's disease (AD) or Parkinson's disease (PD) and used meta-analytic procedures incorporating effect size of each study as the unit of analysis to examine the influences of AD and PD on 3 nominally distinct olfactory domains (olfactory identification, recognition, and detection threshold). A quantitative analysis of 43 studies revealed extremely large effects across all domains, suggesting a severe degree of generalized olfactory deficit in patients with AD and PD relative to controls. While there was a trend toward somewhat better performance on threshold measures in comparison with recognition and identification tasks, the current review suggests that all tests of olfactory function show relatively uniform impairments in AD and PD and that no measure discriminates between these groups. (PsycINFO Database Record (c) 2004 APA, all rights reserved)
I came across one very interesting allusion to another study in my search. Title: The neuropsychology of olfaction in Alzheimer's disease. Author(s): Gilbert, Avery N., Monell Chemical Senses Ctr, Philadelphia, PA Source: Neurobiology of Aging, Vol 7(6), Nov-Dec 1986. Special issue: Controversial topics on Alzheimer's disease: Intersecting crossroads. pp. 578-579. Abstract: Contends that E. Roberts's (see record 1987-25656-001) proposal of a nasal route of entry for an Alzheimer's disease (AD) pathogen leads to a prediction of olfactory dysfunction in AD patients. Rick Rick Froman [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 14, 2004 7:43 PM To: Teaching in the Psychological Sciences Subject: Re: Odours 'help spot dementia' Dear Michael, Please give us the reference to this study. Stuart McKelvie Quoting michael sylvester <[EMAIL PROTECTED]>: > > I once read a study about an Alzheimers' institution that plants > different trees with different flower odours throughout the > institutional grounds.Clients are trained to associate certain odours > with distance from the main house. > For example'the smell of strawberry could be an indication that the > client has wandered too far from the main house and the client should > stop and return to the main house. > And while on this subject,would that be classified as state or cue > dependent learning? > > Michael Sylvester,PhD > Daytona Beach,Florida > > > --- > You are currently subscribed to tips as: [EMAIL PROTECTED] To > unsubscribe send a blank email to [EMAIL PROTECTED] > ---------------------------------------------------- Sent via Bishop's University Webmail System http://Webmail.ubishops.ca --- You are currently subscribed to tips as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED] --- You are currently subscribed to tips as: [email protected] To unsubscribe send a blank email to [EMAIL PROTECTED]
