This study investigates speech comprehension in competing multitalker babble. We examined the effects of number of simultaneous talkers and of frequency of words in the babble on lexical decision to target words. Results revealed better performance at a low talker number (n=2). Importantly, frequency of words in the babble significantly affected performance: high frequency word babble interfered more strongly with word recognition than low frequency babble. This informational masking was particularly salient for the 2-talker babble. These findings suggest that investigating speech-in-speech comprehension may provide crucial information on lexical competition processes that occur in real-time during word recognition.
Bibliographic reference. Boulenger, Véronique / Hoen, Michel / Pellegrino, François / Meunier, Fanny (2009): "Real-time lexical competitions during speech-in-speech comprehension", In INTERSPEECH-2009, 1883-1886.