ABSTRACT
In this article, we apply theory and research from the field of second language acquisition
(SLA) to issues in auditory training for adults with postlingual deafness. Two areas
of SLA theory and research are discussed. The first area concerns five hypotheses
proposed by S. Krashen about SLA. We apply these hypotheses to issues in auditory
training, such as the issue of using instructional techniques that promote development
of implicit knowledge of target structures, the role of meaning-bearing comprehensible
input, and the importance of creating an affectively positive learning environment.
The second area concerns research on acoustic variability and second language (L2)
learning. This research reinforces Krashen's hypothesis about attending to the nature
of input during SLA, but does so with regard to how spoken input may be acoustically
varied to facilitate acquisition. Studies have demonstrated that presentation formats
with talker variability are effective for training learners on L2 phonemic contrasts
and that presentation formats with talker, speaking-style, and speaking-rate variability
(but not amplitude and fundamental-frequency variability) yield positive additive
effects on L2 vocabulary learning. In light of these findings, we discuss how acoustically
varied presentation formats may be used in auditory training.
KEYWORDS
Input hypothesis - explicit and implicit learning - acoustic variability
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Joe BarcroftPh.D.
Department of Romance Languages and Literatures, Campus Box 1077
One Brookings Drive, Washington University, St. Louis, MO 63130-4899
eMail: barcroft@artsci.wustl.edu