eprintid: 10067219
rev_number: 21
eprint_status: archive
userid: 608
dir: disk0/10/06/72/19
datestamp: 2021-06-23 13:56:06
lastmod: 2021-11-01 01:40:28
status_changed: 2021-06-23 13:56:06
type: working_paper
metadata_visibility: show
creators_name: Di Liberto, GM
creators_name: Wong, D
creators_name: Melnik, GA
creators_name: De Cheveigné, A
title: Cortical responses to natural speech reflect probabilistic phonotactics
ispublished: pub
divisions: UCL
divisions: B02
divisions: C07
divisions: D06
note: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Humans comprehend speech despite the various challenges of real-world environments, such as loud noise and mispronunciation. Our auditory system is robust to these thanks to the integration of the upcoming sensory input with prior knowledge and expectations built on language-specific regularities. One such regularity regards the permissible phoneme sequences, which determine the likelihood that a word belongs to a given language (phonotactic probability; “blick” is more likely to be an English word than “bnick”). Previous research suggested that violations of these rules modulate brain evoked responses such as the N400 and the late positive complex. Yet several fundamental questions remain unresolved, especially regarding the neural encoding and integration strategy of phonotactic information. Here, we used linear modelling approaches to assess the influence of phonotactic probabilities on the brain responses to narrative speech measured with non-invasive EEG. We found that the relationship between continuous speech and EEG responses is best described when the speech descriptor includes phonotactic probabilities. This provides us with a methodology to isolate and measure the brain responses to phonotactics using natural speech at the individual subject-level. Furthermore, such low-frequency signals showed the strongest speech-EEG interactions at latencies of 100-400 ms, supporting a pre-lexical role of phonotactic information.
date: 2018-06-30
date_type: published
publisher: BioRxiv
official_url: https://doi.org/10.1101/359828
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1625789
doi: 10.1101/359828
lyricists_name: De Cheveigne, Alain
lyricists_id: ADECH82
actors_name: De Cheveigne, Alain
actors_id: ADECH82
actors_role: owner
full_text_status: public
place_of_pub: Cold Spring Harbor, NY, USA
pages: 37
citation:        Di Liberto, GM;    Wong, D;    Melnik, GA;    De Cheveigné, A;      (2018)    Cortical responses to natural speech reflect probabilistic phonotactics.                    BioRxiv: Cold Spring Harbor, NY, USA.       Green open access   
 
document_url: https://discovery-pp.ucl.ac.uk/id/eprint/10067219/1/2018_DiLiberto_phonotactics.pdf