Statistical learning at a virtual cocktail party

Christina Papoutsi, Eleni Zimianiti, Hans Rutger Bosker*, REBECCA L.A. FROST

*Corresponding author for this work

Research output: Contribution to journalArticle (journal)peer-review

1 Citation (Scopus)
6 Downloads (Pure)

Abstract

Statistical learning – the ability to extract distributional regularities from input – is suggested to be key to language acquisition. Yet, evidence for the human capacity for statistical learning comes mainly from studies conducted in carefully controlled settings without auditory distraction. While such conditions permit careful examination of learning, they do not reflect the naturalistic language learning experience, which is replete with auditory distraction – including competing talkers. Here, we examine how statistical language learning proceeds
in a virtual cocktail party environment, where the to-be-learned input is presented alongside a competing speech stream with its own distributional regularities. During exposure, participants in the Dual Talker group
concurrently heard two novel languages, one produced by a female talker and one by a male talker, with each talker virtually positioned at opposite sides of the listener (left/right) using binaural acoustic manipulations. Selective attention was manipulated by instructing participants to attend to only one of the two talkers. At test, participants were asked to distinguish words from part-words for both the attended and the unattended languages. Results indicated that participants’ accuracy was significantly higher for trials from the attended vs. unattended
language. Further, the performance of this Dual Talker group was no different compared to a control group who heard only one language from a single talker (Single Talker group). We thus conclude that statistical learning is
modulated by selective attention, being relatively robust against the additional cognitive load provided by competing speech, emphasizing its efficiency in naturalistic language learning situations.
Original languageEnglish
Pages (from-to)1-13
JournalPsychonomic Bulletin & Review
Volume30
Issue number4
Early online date2 Oct 2023
DOIs
Publication statusPublished - 2 Oct 2023

Keywords

  • Statistical learning
  • Speech perception
  • speech segmentation
  • cocktail party effect
  • dichotic listening
  • selective attention

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