Objective: Amnestic mild cognitive impairment (MCI) is characterized by memory impairment with preserved daily functioning and is thought to be a transitional state between normal aging and dementia (Petersen, 2004). Individuals with MCI show poor encoding, retention, and consolidation of new information. Little research has investigated recognition discriminability in MCI. Our objective was to investigate different types of recognition discriminability (i.e., source, semantic, & novel) in MCI and typically aging adults (NCI). Method: Thirty-two MCI and 103 NCI cases were drawn from a population-based study. Measures of source, semantic, and novel discriminability were derived following the 20-minute delayed recognition trail from the California Verbal Learning Test-II. Mixed Model ANCOVAs comprised of one between group variable (MCI vs. NCI) and three within group variables (Source, Semantic, & Novel discriminability) were performed. Immediate recall performance...

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