MOBI-COG: A mobile application for instant screening of dementia using the mini-cog test

Shahriar Nirjon, Ifat Afrin Emi, Md Abu Sayeed Mondol, Asif Salekin, John A. Stankovic

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

In this paper, we present MOBI-COG which is an application that runs on a mobile device, such as a tablet or a smartphone, and provides an automated and instant dementia screening service. The MOBI-COG App is a complete automation of a widely used 3- minute dementia screening test called the Mini-Cog test, which is administered by primary caregivers for a quick screening of dementia in elderly. Besides asking the patient to remember and then recall a set of three words, the test involves a free-hand clock drawing test. The MOBI-COG App automates all these steps - including the automatic assessment of the correctness of a clock drawn on the touch screen of a mobile device. We train the MOBI-COG App with over 1000 touch-drawn clocks and show that the system is capable of detecting and recognizing digits in less than 100 ms, in-situ (i.e. without the help of any back-end server), with 99.53% accuracy, and is robust to changes in people, sizes of the drawn digits, and screen sizes of the mobile devices. We perform a usability study of MOBI-COG involving eight healthy human subjects and show that the system is capable of performing all three steps of the test effectively. We also provide a summary of the users' comments on the application.

Original languageEnglish (US)
Title of host publicationProceedings - Wireless Health 2014, WH 2014
PublisherAssociation for Computing Machinery, Inc
ISBN (Electronic)9781450331609
DOIs
StatePublished - Oct 29 2014
Externally publishedYes
Event5th Conference on Wireless Health, WH 2014 - Bethesda, United States
Duration: Oct 29 2014Oct 31 2014

Publication series

NameProceedings - Wireless Health 2014, WH 2014

Conference

Conference5th Conference on Wireless Health, WH 2014
CountryUnited States
CityBethesda
Period10/29/1410/31/14

Keywords

  • Cognitive screening
  • Dementia
  • Mini-cog test

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Health Informatics
  • Health Information Management

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