The limits of multidimensional category learning
Goudbeek, M., Swingley, D., & Kluender, K. R.
The limits of multidimensional category learning. In H. van Hamme, & R. van Son (Eds.
), Proceedings of Interspeech 2007
(pp. 2325-2328). Adelaide: Causal Productions.
Distributional learning is almost certainly involved in the
human acquisition of phonetic categories. Because speech is
inherently a multidimensional signal, learning phonetic
categories entails multidimensional learning. Yet previous
studies of auditory category learning have shown poor
maintenance of learned multidimensional categories. Two
experiments explored ways to improve maintenance: by
increasing the costs associated with applying a
unidimensional strategy; by providing additional information
about the category structures; and by giving explicit
instructions on how to categorize. Only with explicit
instructions were categorization strategies maintained in a
maintenance phase without supervision or distributional