The speakers’ accent shapes the listeners’ phonological predictions during speech perception

Brunellière, Angèle; Soto-Faraco, Salvador, 1970-

doi:http://dx.doi.org/10.1016/j.bandl.2013.01.007

The speakers’ accent shapes the listeners’ phonological predictions during speech perception

Citació

Brunellière A, Soto-Faraco S. The speakers’ accent shapes the listeners’ phonological predictions during speech perception. Brain Lang. 2013 Apr 01;125(1): 82-93. DOI 10.1016/j.bandl.2013.01.007

Resum

This study investigates the specificity of predictive coding in spoken word comprehension using event-related potentials (ERPs). We measured word-evoked ERPs in Catalan speakers listening to semantically constraining sentences produced in their native regional accent (Experiment 1) or in a non-native accent (Experiment 2). Semantically anomalous words produced long-lasting negative shift (N400) starting as early as 250 ms, thus reflecting phonological as well as semantic mismatch. Semantically expected but phonologically unexpected (non-native forms embedded in a native context) produced only an early (∼250 ms) negative difference. In contrast, this phonological expectancy effect failed for native albeit phonologically unexpected target words embedded in a non-native context. These results suggest phonologically precise expectations when operating over native input, whilst phonologically less specified expectations in a non-native context. Our findings shed light on contextual influence during word recognition, suggesting that word form prediction based on context is sensitive and adaptive to phonological variability.