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- Title
Gradual Route to Productivity: Evidence from Turkish Morphological Causatives.
- Authors
Ger, Ebru; You, Guanghao; Küntay, Aylin C.; Göksun, Tilbe; Stoll, Sabine; Daum, Moritz M.
- Abstract
Becoming productive with grammatical categories is a gradual process in children's language development. Here, we investigated this transition process by focusing on Turkish causatives. Previous research examining spontaneous and elicited production of Turkish causatives with familiar verbs attested the onset and early stages of productivity at ages 2 to 3 (Aksu‐Koç & Slobin, 1985; Nakipoğlu, Uzundag, & Sarıgül, 2021). So far, however, we know very little about children's understanding of causatives with novel verbs. In the present study, we asked: (a) When does the generalization of causative morphology in a novel context emerge? and (b) What role does child‐directed input play in this development? To answer the first question, we conducted comprehension‐judgment experiments with children aged 2;6–6;11 using pseudo‐verbs (Study 1 & 2). Results showed that children preferred the Turkish causative suffix ‐DIr over an unrelated or no suffix to denote caused events earliest at age 4;10. To answer the second question, we analyzed child‐directed speech from a longitudinal corpus of Turkish language acquisition (Study 3). Results showed that when addressing children younger than age 3, caregivers used the ‐DIr suffix with little variation considering the overall variability of verbs they could utter. Overall, these findings suggest that productivity with morphological causatives in a novel context emerges in a later stage of acquisition. This later development might partly be accounted for by the insufficient variation of morphological causatives in the early input.
- Subjects
CHILDREN'S language; GRAMMATICAL categories; SPEECH; TURKS; LANGUAGE acquisition
- Publication
Cognitive Science, 2022, Vol 46, Issue 12, p1
- ISSN
0364-0213
- Publication type
Article
- DOI
10.1111/cogs.13210