How Much Does WAIS-IV Perceptual Reasoning Decline Across the 20 to 90-Year Lifespan When Processing Speed is Controlled?

• Published in: Applied neuropsychology. Adult Vol. 24; no. 2; pp. 116 - 131
• Main Authors: Scheiber, Caroline, Chen, Hsinyi, Kaufman, Alan S., Weiss, Lawrence G.
• Format: Journal Article
• Language: English
• Published: United States Routledge 04.03.2017
• Subjects: Adolescent; Adult; Aged; Aged, 80 and over; Aging; Aging - physiology; Cognitive Dysfunction - physiopathology; Female; Humans; Male; Middle Aged; Problem Solving - physiology; processing speed; reasoning; WAIS-IV; Wechsler Scales; Young Adult; Aging; WAIS-IV; reasoning; processing speed

The most prominent pattern of cognitive change over the lifespan centers on the difference between patterns of maintained abilities on tests of crystallized knowledge and patterns of steady decline on tests of problem solving and processing speed. Whereas the maintained-vulnerable dichotomy is well...