This article describes how to implement a simple lexical decision experiment to assess written word recognition in neurologically healthy participants and in individuals with dementia and cognitive decline. We also provide a detailed description of reaction time analysis using principal components analysis (PCA) and mixed-effects modeling.
Nikolaev, A., Higby, E., Hyun, J., Ashaie, S. Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment. J. Vis. Exp. (148), e59753, doi:10.3791/59753 (2019).