Details

Autor(en) / Beteiligte

• Crutcher, Michael D
• Calhoun-Haney, Rose
• Manzanares, Cecelia M
• Lah, James J
• Levey, Allan I
• Zola, Stuart M

Titel

Eye tracking during a visual paired comparison task as a predictor of early dementia

Ist Teil von

• American journal of Alzheimer's disease and other dementias, 2009-06, Vol.24 (3), p.258-266

Ort / Verlag

United States

Erscheinungsjahr

2009

Quelle

MEDLINE

Beschreibungen/Notizen

• The authors present findings from a behavioral task (visual paired comparison) using infrared eye-tracking that could potentially be useful in predicting the onset of Alzheimer's disease. Delay intervals of 2 seconds and 2 minutes were used between the initial viewing of a picture and when the picture was displayed alongside a novel picture. Eye-tracking revealed that at the 2-second delay, 6 patients with mild cognitive impairment, 15 matched control participants (normal control), and 4 neurological control participants with Parkinson's disease performed comparably, viewing the novel picture greater than 71% of the time. When the delay increased to 2 minutes, patients with mild cognitive impairment viewed the novel picture only 53% of the time (P < .05), while control participants and participants with Parkinson's disease remained above 70%. These findings demonstrate the usefulness of this task for assessing normal as well as impaired memory function.