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Individual Differences In Working Memory Capacity Predicts Responsiveness To Memory Rehabilitation After Traumatic Brain Injury, Joshua Sandry, Kathy S. Chiou, John Deluca, Nancy D. Chiaravalloti
Individual Differences In Working Memory Capacity Predicts Responsiveness To Memory Rehabilitation After Traumatic Brain Injury, Joshua Sandry, Kathy S. Chiou, John Deluca, Nancy D. Chiaravalloti
Department of Psychology Faculty Scholarship and Creative Works
Objective To explore how individual differences affect rehabilitation outcomes by specifically investigating whether working memory capacity (WMC) can be used as a cognitive marker to identify who will and will not improve from memory rehabilitation. Design Post hoc analysis of a randomized controlled clinical trial designed to treat learning and memory impairment after traumatic brain injury (TBI): 2 × 2 between-subjects quasiexperimental design (2 [group: treatment vs control] × 2 [WMC: high vs low]). Setting Nonprofit medical rehabilitation research center. Participants Participants (N=65) with moderate to severe TBI with pre- and posttreatment data. Interventions The treatment group completed 10 cognitive …
General Mathematical Ability Predicts Pasat Performance In Ms Patients: Implications For Clinical Interpretation And Cognitive Reserve, Joshua Sandry, Jessica Paxton, James F. Sumowski
General Mathematical Ability Predicts Pasat Performance In Ms Patients: Implications For Clinical Interpretation And Cognitive Reserve, Joshua Sandry, Jessica Paxton, James F. Sumowski
Department of Psychology Faculty Scholarship and Creative Works
Objectives: The Paced Auditory Serial Addition Test (PASAT) is used to assess cognitive status in multiple sclerosis (MS). Although the mathematical demands of the PASAT seem minor (single-digit arithmetic), cognitive psychology research links greater mathematical ability (e.g., algebra, calculus) to more rapid retrieval of single-digit math facts (e.g., 5+6=11). The present study evaluated the hypotheses that (a) mathematical ability is related to PASAT performance and (b) both the relationship between intelligence and PASAT performance as well as the relationship between education and PASAT performance are both mediated by mathematical ability. Methods: Forty-five MS patients were assessed using the Wechsler Test …