{"pk":49444,"title":"Modeling Processing Speed in Developmental Language Disorder using Drift Diffusion Modeling","subtitle":null,"abstract":"Children with Developmental Language Disorder (DLD) exhibit longer reaction times (RTs) than age-matched neurotypical children. Drift diffusion models estimate parameters influencing RT distributions: drift-rate represents speed of information accumulation, non-decision time represents other factors contributing to longer RTs, e.g., poor attention or motor coordination. Using a hierarchical Bayesian framework, we modeled RT data from visual search and mental rotation tasks completed by 3rd graders (N = 248). Children with impaired verbal abilities without accompanying nonverbal impairment (DLD) and those with global verbal/nonverbal impairments were compared to neurotypical children. Across tasks, children with DLD exhibited a lower drift rate than neurotypical children, indicating slower information accumulation, and no difference in non-decision time. Children with global impairments showed lower drift rates and higher non-decision times than neurotypical children. Results suggest directions for nuanced tests of the generalized slowing hypothesis of DLD. Clinical implications for diagnosis and treatment of DLD are discussed.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"Decision making; Development; Language and thought; Bayesian modeling; Mathematical modeling"}],"section":"Papers with Poster Presentation","is_remote":true,"remote_url":"https://escholarship.org/uc/item/1xx7d6sx","frozenauthors":[{"first_name":"Peter","middle_name":"J","last_name":"Johnson","name_suffix":"","institution":"CUNY Graduate Center","department":""},{"first_name":"Christopher","middle_name":"Donnan","last_name":"Gravelle","name_suffix":"","institution":"The Graduate Center, CUNY","department":""},{"first_name":"Nicolas","middle_name":"","last_name":"Zapparrata","name_suffix":"","institution":"College of Staten Island","department":""},{"first_name":"Patricia","middle_name":"J.","last_name":"Brooks","name_suffix":"","institution":"College of Staten Island and the Graduate Center, CUNY","department":""},{"first_name":"Carol","middle_name":"A.","last_name":"Miller","name_suffix":"","institution":"Penn State University","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2025-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/49444/galley/37406/download/"}]}