Neural correlates of incidental L2 auditory word learning
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2019-11-05
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en
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We investigated the electrophysiological correlates of naturalistic, incidental word learning in a second language (L2). Native Dutch speakers made price comparisons of objects in their L2 English, or listened to those by a virtual partner and judged them for price consistency. Critically, some of the object names (e.g., ‘whisk’) were previously unknown to them, as verified in a pretest. Later trials where participants had to name the same critical objects showed whether they had learned the words. There was a late-positive ERP for previously unknown compared to previously known words. This old-new effect was also observed for the second exposure to unknown words, but only when these had not been recalled after the first exposure. Finally, listening to new words that were later forgotten elicited a large and sustained positivity compared to words that were remembered later. This study reveals neural correlates of learning and memory for new L2 words.
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