Degree in English Studies
European Doctor in English Phonetics
RESEARCH, TEACHING, or OTHER INTERESTS
Language and Linguistics
3
Scopus Publications
Scopus Publications
Is L2 pronunciation affected by increased task complexity in pronunciation-unfocused speaking tasks? Ingrid Mora-Plaza, Joan C. Mora, Mireia Ortega, Cristina Aliaga-Garcia Studies in Second Language Acquisition, 2024 This study examines the effects of task complexity on second language (L2) pronunciation accuracy and global pronunciation measures in pronunciation-unfocused tasks and assesses the relationship between acoustic and listener-based pronunciation measures. Eighty-two Catalan/Spanish learners of English performed simple and complex versions of a problem-solving monologic speaking task, for which the oral stops /p, t, k/ and vowel contrasts /iː/-/ɪ/ and /æ/-/ᴧ/ were embedded in the lexical items used to perform the task. Pronunciation accuracy was gauged through acoustic measurements of laryngeal timing (voice onset time), vowel contrastiveness and nativelikeness (Mahalanobis distances), and native speakers’ ratings of comprehensibility and accentedness. Results revealed detrimental effects of increased task complexity on the productions of oral stops and speech comprehensibility and accentedness; however, no consistent task complexity effects were found on vowel accuracy. The analysis also revealed an association between segmental accuracy and global dimensions of L2 speech.
Training the pronunciation of L2 vowels under different conditions: the use of non-lexical materials and masking noise Joan C. Mora, Mireia Ortega, Ingrid Mora-Plaza, Cristina Aliaga-García Phonetica, 2022 The current study extends traditional perceptual high-variability phonetic training (HVPT) in a foreign language learning context by implementing a comprehensive training paradigm that combines perception (discrimination and identification) and production (immediate repetition) training tasks and by exploring two potentially enhancing training conditions: the use of non-lexical training stimuli and the presence of masking noise during production training. We assessed training effects on L1-Spanish/Catalan bilingual EFL learners’ production of a difficult English vowel contrast (/æ/-/ʌ/). The participants (N = 62) were randomly assigned to either non-lexical (N = 24) or lexical (N = 24) training and were further subdivided into two groups, one trained in noise (N = 12) and one in silence (N = 12). An untrained control group (N = 14) was also tested. Training gains, measured through spectral distance scores (Euclidean distances) with respect to native speakers’ productions of /æ/ and /ʌ/, were assessed through delayed word and sentence repetition tasks. The results showed an advantage of non-lexical training over lexical training, detrimental effects of noise for participants trained with nonwords, but not for those trained with words, and less accurate production of vowels elicited in isolated words than in words embedded in sentences, where training gains were only observable for participants trained with nonwords.
L2 speech learning in adulthood and phonological short-term memory Cristina Aliaga-García, Joan C. Mora, Eva Cerviño-Povedano Poznan Studies in Contemporary Linguistics, 2011 The aim of the present study is to extend research on individual differences in cognitive ability and second language acquisition by exploring the relationship between PSTM and L2 speech learning in advanced EFL learners. The participants (N=60) were a subset of a larger group of Catalan-Spanish bilingual EFL learners participating in 10 60-minute high-variability phonetic training sessions on the perception of the 11 British English monophthongs. Perceptual accuracy was assessed at pre- and post-test through categorization and discrimination tasks based on 5 monophthongal vowels (/i: ɪ æ ʌ ɑ:/). PSTM capacity measures were obtained at post-test using a SNWR task consisting of CVC Catalan nonwords on the basis of which participants were assigned to either low or high PSTM capacity groups The high PSTM group was found to obtain higher accuracy scores and greater perceptual accuracy gains than the low PSTM group. These results suggest that PSTM may play a role in L2 speech learning and may be involved in learners’ ability to successfully form phonetic categories for L2 sounds.
