Speech and Language Therapist within the adult service at Hywel Dda
Local Health Board. She continues to have a specific interest in the area of
bilingualism.
Bryn Jones is currently Lecturer in the School of Education at Bangor
University, following a position as Research Officer at the ESRC Centre for
Research on Bilingualism in Theory and Practice at Bangor University. The
focus of his research work is on language allocation of Welsh and English in
the context of teaching and learning in bilingual primary and secondary
schools in Wales.
Esther de Leeuw is Lecturer in Linguistics at the School of Languages,
Linguistics and Film, Queen Mary, University of London. Her research inter-
ests include social and personal dimensions of language variation and change,
particularly in relation to bilingualism and migration and the relationship
between L2 and L1 pronunciation patterns. She has also examined discourse
phenomena from a phonetic perspective cross-linguistically in relation to L
acquisition.
Gwyn Lewis is Senior Lecturer at the School of Education, Bangor
University, and a former Research Collaborator in the ESRC Centre for
Research on Bilingualism in Theory and Practice at Bangor University. His
research interests include heritage/maintenance language education and
immersion education, specifically within the context of Welsh-medium and/
or bilingual schools where two languages are used in the classroom for teach-
ing and learning.
Robert Mayr is Senior Lecturer in linguistics at the Centre for Speech and
Language Therapy, Cardiff Metropolitan University, and Research Associate
at the ESRC Centre for Research on Bilingualism in Theory and Practice at
Bangor University. His research is primarily concerned with the development
of speech in bilingual children and adults, with a particular interest in the
nature of cross-linguistic interactions in bilingual sound systems.
Ineke Mennen is Professor of Bilingualism and Linguistics at Bangor
University, and member of the Executive of the ESRC Centre for Research on
Bilingualism in Theory and Practice. Her research focuses on the acquisition
of speech by bilingual speakers (encompassing both sequential and consecu-
tive bilinguals) with a view to enhancing understanding of the mutual inter-
action between two or more phonetic systems and its implications for
phonetic and phonological theory.
Rocío Pérez-Tattam is currently Researcher and Tutor at Swansea University,
following a position as a Post-Doctoral Researcher at the ESRC Centre for
Contributors xi