Speech Segmentation and Cross-Situational Word Learning in Parallel

Autor(es)

Dal Ben, Rodrigo ; Prequero, Isabella Toselli ; Souza, Debora de Hollanda ; Hay, Jessica F.

• Tipo de documento: Artigo Científico
• Fonte: OPEN MIND-DISCOVERIES IN COGNITIVE SCIENCE; v. 7, p. 24-pg., 2023-07-28.

Resumo

Language learners track conditional probabilities to find words in continuous speech and to map words and objects across ambiguous contexts. It remains unclear, however, whether learners can leverage the structure of the linguistic input to do both tasks at the same time. To explore this question, we combined speech segmentation and cross-situational word learning into a single task. In Experiment 1, when adults (N = 60) simultaneously segmented continuous speech and mapped the newly segmented words to objects, they demonstrated better performance than when either task was performed alone. However, when the speech stream had conflicting statistics, participants were able to correctly map words to objects, but were at chance level on speech segmentation. In Experiment 2, we used a more sensitive speech segmentation measure to find that adults (N = 35), exposed to the same conflicting speech stream, correctly identified non-words as such, but were still unable to discriminate between words and part-words. Again, mapping was above chance. Our study suggests that learners can track multiple sources of statistical information to find and map words to objects in noisy environments. It also prompts questions on how to effectively measure the knowledge arising from these learning experiences. (AU)

• Processo FAPESP: 18/04226-7 - Segmentação de fala e aprendizagem de palavras entre tentativas em paralelo
• Beneficiário: Rodrigo Dal Ben de Souza
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 08/57705-8 - Instituto de Estudos sobre Comportamento, Cognição e Ensino
• Beneficiário: Deisy das Graças de Souza
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 18/18748-5 - Efeitos da probabilidade transicional e fonotática na extração de palavras e mapeamento simultâneo com estímulos visuais ao longo de tentativas ambíguas
• Beneficiário: Isabella Toselli Prequero Sbrocco
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 15/26389-7 - Extração de palavras e mapeamento com estímulos visuais ao longo de tentativas ambíguas sequenciais e simultâneas
• Beneficiário: Rodrigo Dal Ben de Souza
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/50909-8 - INCT 2014: Comportamento, Cognição e Ensino (INCT-ECCE): aprendizagem relacional e funcionamento simbólico
• Beneficiário: Deisy das Graças de Souza
• Modalidade de apoio: Auxílio à Pesquisa - Temático