{"pk":30128,"title":"A Neural Network Model of Lexical Competitionduring Infant Spoken Word Recognition","subtitle":null,"abstract":"Visual world studies show that upon hearing a word in a target-absent visual context containing related and unrelated items,toddlers and adults briefly direct their gaze towards phonolog-ically related items, before shifting towards semantically andvisually related ones. We present a neural network model thatprocesses dynamic unfolding phonological representations andmaps them to static internal semantic and visual representa-tions. The model, trained on representations derived from realcorpora, simulates this early phonological over semantic/visualpreference. Our results support the hypothesis that incremen-tal unfolding of a spoken word is in itself sufficient to ac-count for the transient preference for phonological competi-tors over both unrelated and semantically and visually relatedones. Phonological representations mapped dynamically in abottom-up fashion to semantic-visual representations capturethe early phonological preference effects reported in a visualworld task. The semantic-visual preference observed later insuch a trial does not require top-down feedback from a seman-tic or visual system.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"language; neuro-computational models; develop-ment; visual world task; phonology; semantics; cohort effects;machine learning; lexical competition; spoken word recogni-tion; attention."}],"section":"Papers accepted as Talks, appearing in proceedings only","is_remote":true,"remote_url":"https://escholarship.org/uc/item/5407990p","frozenauthors":[{"first_name":"Mihaela","middle_name":"","last_name":"Duta","name_suffix":"","institution":"University of Oxford","department":""},{"first_name":"Kim","middle_name":"","last_name":"Plunkett","name_suffix":"","institution":"University of Oxford","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2020-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/30128/galley/19982/download/"}]}