This study examines the perception of English vowels by native
speakers of Italian. In two preliminary experiments, Italian university
students who had lived in Canada for 3 months were found to have
difficulty discriminating
because they often identified both members of each contrast as
instances of a single Italian vowel. The participants in two other
experiments, long-time residents of Canada, were assigned to groups
based on their age of arrival in Canada from Italy (early vs. late) and
percentage of first language (L1) use (high L1 use vs. low L1 use).
Experiment 3 focused on the discrimination of
,
and experiment 4 examined the
discrimination of correct from incorrect realizations of
.
In both experiments, the early learners obtained
higher discrimination scores than the late learners, and low-L1-use
participants obtained higher scores than high-L1-use participants. Most
important, the early learners who used Italian often (early high), but
not the early learners who used Italian seldom (early low), were found
to differ from native speakers of English in perceiving English vowels.
These results suggest two important conclusions regarding second
language (L2) perceptual learning: Learning an L2 in childhood does not
guarantee a nativelike perception of L2 vowels, nor does the
establishment of a sound system for the L1 preclude a functionally
nativelike perception of L2 vowels. Another important finding is that,
although the late learners generally perceived English vowels less
accurately than the early learners, some perceived them accurately.This study was supported by grant DC00257 from
the National Institute of Deafness and Other Communicative Disorders. The
authors thank J. Prosperine and M. Pearse for help locating participants,
Fr. M. Brodeur of St. Anthony's Church in Ottawa, Ontario, and all the
participants. The authors are grateful to D. Meador and T. Piske for help
preparing the stimuli used in experiment 4. Finally, thanks are extended to
K. Aoyama, S. Imai, K. Tsukada, T. Piske, and three anonymous SSLA
reviewers for comments on an earlier version of this article.