Facial Recognition Task for the Classification of Mild Cognitive Impairment with Ensemble Sparse Classifier

P. Williams, A. White, R. B. Merino, S. Hardin, J. C. Mizelle, S. Kim

Producción científica: Conference contribution

2 Citas (Scopus)

Resumen

Conventional methods for detecting mild cognitive impairment (MCI) require cognitive exams and follow-up neuroimaging, which can be time-consuming and expensive. A great need exists for objective and cost-effective biomarkers for the early detection of MCI. This study uses a sequential imaging oddball paradigm to determine if familiar, unfamiliar, or inverted faces are effective visual stimuli for the early detection of MCI. Unlike the traditional approach where the amplitude and latency of certain deflection points of event-related potentials (ERPs) are selected as electrophysiological biomarkers (or features) of MCI, we used the entire ERPs as potential biomarkers and relied on an advanced machine-learning technique, i.e. an ensemble of sparse classifier (ESC), to choose the set of features to best discriminate MCI from healthy controls. Five MCI subjects and eight age-matched controls were given the MoCA exam before EEG recordings in a sensory-deprived room. Traditional time-domain comparisons of averaged ERPs between the two groups did not yield any statistical significance. However, ESC was able to discriminate MCI from controls with 95% classification accuracy based on the averaged ERPs elicited by familiar faces. By adopting advanced machine-learning techniques such as ESC, it may be possible to accurately diagnose MCI based on the ERPs that are specifically elicited by familiar faces.

Idioma originalEnglish (US)
Título de la publicación alojada2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019
EditorialInstitute of Electrical and Electronics Engineers Inc.
Páginas2242-2245
Número de páginas4
ISBN (versión digital)9781538613115
DOI
EstadoPublished - jul 2019
Publicado de forma externa
Evento41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019 - Berlin, Germany
Duración: jul 23 2019jul 27 2019

Serie de la publicación

NombreProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
ISSN (versión impresa)1557-170X

Conference

Conference41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019
País/TerritorioGermany
CiudadBerlin
Período7/23/197/27/19

ASJC Scopus subject areas

  • Signal Processing
  • Health Informatics
  • Computer Vision and Pattern Recognition
  • Biomedical Engineering

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