Talk at the Berkeley Linguistics Society workshop “Phonological representations: at the crossroad between gradience and categoricity” Feb 7-8 was entitled: Finding phonological structure in vowel confusions across English accents. The talk draws a connection between some collaborative work on cross-accent speech perception (Shaw et al. 2018. 2019) and contrastive feature hierarchies, in the sense of Dresher (2009).
The slides are available here.