IS DETECTING EARLY ONSET OF ALZHEIMER’S DISEASE IS GAINING A “NEW IDENTITY”? OLFACTORY DYSFUNCTION AS AN ERP BIOMARKER OF ALZHEIMER’S DISEASE
Keskin Krzan, Fatma
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The olfactory system is vital mechanism for our survival to interact with the environment, influencing not only on odor detection but also on nutrition, social behavior and well-being. Current findings suggest that before the onset of any cognitive decline reflecting early sign of dementia, dysfunction in the areas processing olfactory information is present at the early stages of Alzheimer’s disease (AD). Behavioral test including thresholds, odor identification, recognition memory tasks are the most common types of odor measurement. However, recent neuroimaging techniques using measures of brain response, including Olfactory Event Related Potentials (OERPs) suggested the potential for detection of AD at the early preclinical stage. The importance of olfactory event related potentials and their relation with AD appear to be very promising.