Karin Heidlmayr

Presentations

Displaying 1 - 7 of 7
  • Heidlmayr, K., Weber, K., Takashima, A., & Hagoort, P. (2019). Shared situation models between production and comprehension: fMRI evidence on the neurocognitive processes underlying the construction and sharing of representations in discourse. Poster presented at the Eleventh Annual Meeting of the Society for the Neurobiology of Language (SNL 2019), Helsinki, Finland.
  • Terporten, R., Kösem, A., Schoffelen, J.-M., Callaghan, E., Heidlmayr, K., Dai, B., & Hagoort, P. (2019). Alpha oscillations mark the interaction between language processing and cognitive control operations during sentence reading. Poster presented at the Eleventh Annual Meeting of the Society for the Neurobiology of Language (SNL 2019), Helsinki, Finland.
  • Heidlmayr, K., Weber, K., Takashima, A., & Hagoort, P. (2018). The neural basis of shared discourse: fMRI evidence on the relation between speakers’ and listeners’ brain activity when processing language in different states of ambiguity. Poster presented at the Tenth Annual Meeting of the Society for the Neurobiology of Language (SNL 2018), Québec City, Canada.
  • Heidlmayr, K., Ferragne, E., & Isel, F. (2017). Perceptual adaptation to non-native sound contrasts: Electrophysiological evidence of neuroplasticity in the phonological system related to second language learning. Talk presented at Neuroscience 2017 – 47th annual meeting of the Society for Neuroscience. Washington, DC, USA. 2017-11-11 - 2017-11-15.
  • Heidlmayr, K., Ferragne, E., & Isel, F. (2017). Perceptual sensitivity to non-native sounds: ERP evidence of neuroplasticity in the phonological system related to second language learning. Poster presented at the Ninth Annual Meeting of the Society for the Neurobiology of Language (SNL 2017), Baltimore, MD, USA.
  • Heidlmayr, K., Ferragne, E., & Isel, F. (2016). Perception of non-native sounds in a second language: Electrophysiological evidence of neuroplasticity in the phonological system. Talk presented at Neuroscience 2016. San Diego, CA, USA. 2016-11-12 - 2016-11-16.

    Abstract

    Second language learners frequently encounter difficulty in perceiving specific non-native sound contrasts. This phenomenon called phonological deafness rather occurs if the second language (L2) is learned after early childhood and is quite persistent even when high L2 proficiency is attained (Dupoux et al., 2008). However, if the neuronal underpinnings of phonological processing are plastic to a certain degree, late L2 learners should be able to reach the capacity to distinguish non-native phonemic contrasts (Best & Strange, 1992; Flege et al., 1997; Iverson et al., 2012). In the present study, our goal was to examine the extent to which the phonological system in late L2 learners is adaptable. We designed an ERP experiment in which the capacity to discriminate second language phonemic contrasts mediated lexical access. We used a semantic violation paradigm in which the difference between semantically congruent and incongruent items was implemented by a phonemic contrast that was unique to the second language, English, but absent in the first language, French (e.g., /ɪ/ - /i/: ship – sheep). Twelve young adult native speakers of French with intermediate proficiency in English participated in the ERP experiment. Participants heard sentences that contained either a semantically congruent item (e.g., The anchor of the ship was let down) or an incongruent one (e.g., *The anchor of the sheep was let down) and were asked to perform a grammaticality judgement. Preliminary results reveal that second language learners of English showed a larger centro-parietal negativity between 300-500 ms after the onset of semantically incongruent words as compared to congruent target words, i.e. an N400 effect. This finding indicates that L2 learners were sensitive to the semantic incongruency mediated by a phonemic contrast. Critically, the N400 effect size varied as a function of L2 proficiency, i.e. the more proficient the participants, the larger the N400 effect size. Thus, the sensitivity to phonemic contrasts of a second language seems to play a significant role in lexical access. With an increasing capacity to discriminate second language phonemic contrasts, the access to lexical information is facilitated. These findings show that even late learners of a second language can develop a perceptual sensitivity to discriminate non-native sound contrasts, at least at the segmental phonological level, which also indicates that neuroplasticity in the phonological system allows for a certain adaptation to linguistic environmental constraints. Further investigations should explore how targeted training can improve the sensitivity to second language phonemic contrasts.
  • Heidlmayr, K., Moutier, S., Hemforth, B., & Isel, F. (2012). Bilingualism and Executive Functions: ERP Evidence and Source Reconstruction of Conflict Processing in a Stroop Task. Talk presented at the 18th Annual Conference on Architectures and Mechanisms for Language Processing (AMLaP 2012). Riva del Garda, Italy. 2012-09-06 - 2012-09-08.

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