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Reading requires the assembly of cognitive processes across a wide spectrum from low-level visual perception to high-level discourse comprehension. One approach of unravelling the dynamics associated with these processes is to determine how eye movements are influenced by the characteristics of the text, in particular which features of the words within the perceptual span maximise the information intake due to foveal, spillover, parafoveal, and predictive processing. One way to test the generalisability of current proposals of such distributed processing is to examine them across different languages. For Turkish, an agglutinative language with a shallow orthography-phonology mapping, we replicate the well-known canonical main effects of frequency and predictability of the fixated word as well as effects of incoming saccade amplitude and fixation location within the word on single-fixation durations with data from 35 adults reading 120 nine-word sentences. Evidence for previously reported effects of the characteristics of neighbouring words and interactions was mixed. There was no evidence for the expected Turkish-specific morphological effect of the number of inflectional suffixes on single-fixation durations. To control for word-selection bias associated with single-fixation durations, we also tested effects on word skipping, single-fixation, and multiple-fixation cases with a base-line category logit model, assuming an increase of difficulty for an increase in the number of fixations. With this model, significant effects of word characteristics and number of inflectional suffixes of foveal word on probabilities of the number of fixations were observed, while the effects of the characteristics of neighbouring words and interactions were mixed.
The paper investigates Turkish texts from heritage speakers of Turkish in Germany in a pseudo-longitudinal setting, looking at pupils' texts from the 5th, 7th, 10th and 12th grades. Two types of dynamics are identified in the advanced acquisition(1) of Turkish orthography in the heritage context. One is the dynamic of language contact, where in certain areas of the orthography, we find a re-interpretation of Turkish principles according to the German model. However, this changes as the pupils grow up. The second dynamic is the heritage situation. The heritage situation on one side leads to the establishment of new practices, and it also leads to a higher degree of variability of spelling solutions in those areas, where the orthographic system of Turkish poses challenges to every writer, whether monolingual and growing up in Turkey or heritage speaker.
Previous research has shown that heritage speakers struggle with inflectional morphology. 'Limitations of online resources' for processing a non-dominant language has been claimed as one possible reason for these difficulties. To date, however, there is very little experimental evidence on real-time language processing in heritage speakers. Here we report results from a masked priming experiment with 97 bilingual (Turkish/German) heritage speakers and a control group of 40 non-heritage speakers of Turkish examining regular and irregular forms of the Turkish aorist. We found that, for the regular aorist, heritage speakers use the same morphological decomposition mechanism ('affix stripping') as control speakers, whereas for processing irregularly inflected forms they exhibited more variability (i.e., less homogeneous performance) than the control group. Heritage speakers also demonstrated semantic priming effects. At a more general level, these results indicate that heritage speakers draw on multiple sources of information for recognizing morphologically complex words.
We investigated the comprehension of subject-verb agreement in Turkish-German bilinguals using two tasks. The first task elicited speeded judgments to verb number violations in sentences that contained plural genitive modifiers. We addressed whether these modifiers elicited attraction errors, which have supported the use of a memory retrieval mechanism in monolingual comprehension studies. The second task examined the comprehension of a language-specific constraint of Turkish against plural-marked verbs with overt plural subjects. Bilinguals showed a reduced application of this constraint, as compared to Turkish monolinguals. Critically, both groups showed similar rates of attraction, but the bilingual group accepted ungrammatical sentences more often. We propose that the similarity in attraction rates supports the use of the same retrieval mechanism, but that bilinguals have more problems than monolinguals in the mapping of morphological to abstract agreement features during speeded comprehension, which results in increased acceptability of ungrammatical sentences.
In a masked morphological priming experiment, we compared the processing of derived and inflected morphologically complex Turkish words in heritage speakers of Turkish living in Berlin and in native speakers of Turkish raised and living in Turkey. The results show significant derivational and inflectional priming effects of a similar magnitude in the heritage group and the control group. For both participant groups, semantic and orthographic control conditions indicate that these priming effects are genuinely morphological in nature, and cannot be due to semantic or orthographic similarity between prime and target. These results suggest that morphological processing in heritage speakers is based on the same fundamental processing mechanisms as in prototypical native speakers. We conclude that heritage speakers, despite the fact that they have acquired the language in a particular setting and were exposed to a relatively limited amount of input, can nevertheless develop native-like processing mechanisms for complex words.
This study investigates the characteristics of narrative-speech production and the use of verbs in Turkish agrammatic speakers (n = 10) compared to non-brain-damaged controls (n = 10). To elicit narrative-speech samples, personal interviews and storytelling tasks were conducted. Turkish has a large and regular verb inflection paradigm where verbs are inflected for evidentiality (i.e. direct versus indirect evidence available to the speaker). Particularly, we explored the general characteristics of the speech samples (e.g. utterance length) and the uses of lexical, finite and non-finite verbs and direct and indirect evidentials. The results show that speech rate is slow, verbs per utterance are lower than normal and the verb diversity is reduced in the agrammatic speakers. Verb inflection is relatively intact; however, a trade-off pattern between inflection for direct evidentials and verb diversity is found. The implications of the data are discussed in connection with narrative-speech production studies on other languages.
The present study investigates to what extent morphological priming varies across different groups of native speakers of a language. In two masked-priming experiments, we investigate the processing of morphologically complex Turkish words in Turkish heritage speakers raised and living in Germany. Materials and experimental design were based on Kırkıcı and Clahsen’s (2013) study on morphological processing in Turkish native speakers and L2 learners, allowing for direct comparisons between the three groups. Experiment 1 investigated priming effects for morphologically related prime-target pairs. Heritage speakers showed a similar pattern of results as the L1 comparison group, with significant priming effects for prime-target pairs with inflected primes (e.g. ‘sorar-sor’ asks-ask) as well as for prime-target pairs with derived primes (e.g. ‘sağlık-sağ’ health-healthy). In Experiment 2, we measured priming effects for prime-target pairs which were semantically and morphologically unrelated, but only related with regard to orthographic overlap (e.g. ‘devre-dev’ period-giant). Unlike both L1 speakers raised in Turkey and highly proficient L2 learners, heritage speakers also showed significant priming effects in this condition. Our results suggest that heritage speakers differ from both native speakers and L2 learners in that they rely more on (orthographic) surface form properties of the stimulus during early stages of word recognition, at the expense of morphological decomposition.
This article examines and discusses aspects of the acquisition of Turkish literacy in the minority context in Germany. After describing the particular sociolinguistic and language contact situation of Turkish in Germany, the article focuses on two empirical aspects of the acquisition of Turkish literacy within this situation. First, the development of noun phrase complexity is analyzed in a pseudo-longitudinal approach investigating Turkish texts of German-Turkish bilingual pupils of different grades. Second, strategies of literacy are analyzed in the investigation of Turkish texts from bilingual high school pupils of the 12th grade.