Chelsea M Stillman1, James H Howard2, Darlene V Howard3. 1. Department of Psychology and cms264@georgetown.edu. 2. Center for Brain Plasticity and Recovery, Georgetown University, Washington, District of Columbia. Department of Psychology, The Catholic University of America, Washington, District of Columbia. Department of Neurology, Georgetown University Medical Center, Washington, District of Columbia. 3. Department of Psychology and Center for Brain Plasticity and Recovery, Georgetown University, Washington, District of Columbia.
Abstract
OBJECTIVE: The primary objective was to determine whether age deficits in implicit sequence learning occur not only for second-order probabilistic regularities (event n - 2 predicts n), as reported earlier, but also for first-order regularities (event n - 1 predicts event n). A secondary goal was to determine whether age differences in learning vary with level of structure. METHOD: Younger and older adults completed a nonmotor sequence learning task containing either a first- or second-order structure. Learning scores were calculated for each subject and compared to address our research objectives. RESULTS: Age deficits in implicit learning emerged not only for second-order probabilistic structure, but also for simple, first-order structure. In addition, age differences did not vary significantly with structure; both first and second order yielded similar age deficits. DISCUSSION: These findings are consistent with the view that there is an associative binding deficit in aging and that this deficit occurs for implicit as well as explicit learning and across simple and more complex sequence structures.
OBJECTIVE: The primary objective was to determine whether age deficits in implicit sequence learning occur not only for second-order probabilistic regularities (event n - 2 predicts n), as reported earlier, but also for first-order regularities (event n - 1 predicts event n). A secondary goal was to determine whether age differences in learning vary with level of structure. METHOD: Younger and older adults completed a nonmotor sequence learning task containing either a first- or second-order structure. Learning scores were calculated for each subject and compared to address our research objectives. RESULTS: Age deficits in implicit learning emerged not only for second-order probabilistic structure, but also for simple, first-order structure. In addition, age differences did not vary significantly with structure; both first and second order yielded similar age deficits. DISCUSSION: These findings are consistent with the view that there is an associative binding deficit in aging and that this deficit occurs for implicit as well as explicit learning and across simple and more complex sequence structures.
Authors: Ilana J Bennett; David J Madden; Chandan J Vaidya; James H Howard; Darlene V Howard Journal: Neurobiol Aging Date: 2010-05-07 Impact factor: 4.673
Authors: Jessica F Schwab; Kathryn D Schuler; Chelsea M Stillman; Elissa L Newport; James H Howard; Darlene V Howard Journal: Psychol Aging Date: 2016-06-13
Authors: Chelsea M Stillman; Jennifer C Watt; George A Grove; Mariegold E Wollam; Fatma Uyar; Maria Mataro; Neal J Cohen; Darlene V Howard; James H Howard; Kirk I Erickson Journal: PLoS One Date: 2016-09-01 Impact factor: 3.240