{"pk":27018,"title":"Non-Symbolic Exact Quantity Representation in a Language Impaired Population","subtitle":null,"abstract":"English-speakers whose access to number language isartificially compromised by verbal interference and the Pirahã(an Amazonian tribe without exact number words) appear torely on analog magnitude estimation for representing non-symbolic exact quantities greater than 3. Here, 16 participantswith aphasia performed the 5 counting tasks from theseprevious studies. Performance was poorest when targets werenot visible during response (70% correct, task 4; 71% correct,task 5) and best when targets were presented as subitizablegroups of 2 and 3 (98% correct, task 2). Western AphasiaBattery-Revised subtest scores correlated with taskperformance, suggesting diverse forms of languageimpairment may contribute to errors. Coefficients of variationfor tasks and significant correlations of target magnitude witherror rate (r 2=.88) and error size (r 2=.87) across tasks suggestparticipant use of analog magnitude estimation. Experimentsinvolving people with aphasia may further refine ourunderstanding of how language and thought interact.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"Aphasia"},{"word":"Language"},{"word":"number"}],"section":"Talks: Papers","is_remote":true,"remote_url":"https://escholarship.org/uc/item/1258k4f5","frozenauthors":[{"first_name":"John","middle_name":"","last_name":"Verbos","name_suffix":"","institution":"Duoquesne University","department":""},{"first_name":"Sarah","middle_name":"E.","last_name":"Wallace","name_suffix":"","institution":"Duoquesne University","department":""},{"first_name":"Alexander","middle_name":"","last_name":"Kranjec","name_suffix":"","institution":"Duoquesne University","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2017-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/27018/galley/16654/download/"}]}