title: Visual object pattern separation varies in older adults.
abstract: Young and nondemented older adults completed a visual object continuous recognition memory task in which some stimuli (lures) were similar but not identical to previously presented objects. The lures were hypothesized to result in increased interference and increased pattern separation demand. To examine variability in object pattern separation deficits, older adults were divided into impaired and unimpaired groups based on performance on a standardized serial list-learning task. Impaired older adults showed intact recognition memory, but were impaired relative to young and unimpaired older adults when identifying similar lure stimuli, demonstrating that object pattern separation varies in older adults.
authors.affiliation: San Diego State University-University of California San Diego Joint Doctoral Program in Clinical Psychology, San Diego, California 92120, USA.
authors.forename: Heather M
authors.initials: HM
authors.lastname: Holden
authors.forename: Chelsea
authors.initials: C
authors.lastname: Toner
authors.forename: Eva
authors.initials: E
authors.lastname: Pirogovsky
authors.forename: C Brock
authors.initials: CB
authors.lastname: Kirwan
authors.forename: Paul E
authors.initials: PE
authors.lastname: Gilbert
mesh_terms: D000367:Age Factors; D000368:Aged; D006801:Humans; D008297:Male; D008568:Memory; D008569:Memory Disorders; D014796:Visual Perception; D055815:Young Adult