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. Author manuscript; available in PMC: 2015 Nov 1.
Published in final edited form as: Alzheimers Dement. 2014 Jul 14;10(6):735–742.e4. doi: 10.1016/j.jalz.2014.04.520

Figure 2.

Figure 2

Sigmoid fits (gray) superimposed on spaghetti plots of fitted data points. Inflection point of each sigmoid curve is indicated with a gray dot. The horizontal axis represents the ADPS estimated for each subject. Longitudinal data points are connected by black lines for individuals who remained cognitively normal throughout the study and by green lines for the cognitively impaired. Red lines were used for subjects who started out as cognitively normal but then became impaired. ADPS = Alzheimer’s Disease Progression Score; CVLT = California Verbal Learning Test; CVLT-sum = CVLT immediate recall; CVLT-frs = CVLT short delayed free recall; CVLT-frl = CVLT long delayed free recall; BVRT = Benton Visual Retention Test error score; BMS = Blessed Information Memory Concentration score; MMSE = Mini-Mental State Exam.