Clinical Manifestations.

Background: Cognitive tests of naming ability have been shown to have diagnostic and prognostic utility in both mild cognitive impairment (MCI) and Alzheimer's disease (AD; Taler & Phillips, 2008). The Boston Naming Test (BNT) is the most common naming test, which consists of 60 black-and-white drawings and takes 20-30 minutes to administer. Retrospective analysis has shown that administering the BNT in an adaptive fashion could result in a comparable measure of the patient's naming ability in only 8 items instead of 60.

Screening of Parkinson's Disease Using Geometric Features Extracted from Spiral Drawings.

Conventional means of Parkinson's Disease (PD) screening rely on qualitative tests typically administered by trained neurologists. Tablet technologies that enable data collection during handwriting and drawing tasks may provide low-cost, portable, and instantaneous quantitative methods for high-throughput PD screening. However, past efforts to use data from tablet-based drawing processes to distinguish between PD and control populations have demonstrated only moderate classification ability.