Published online by Cambridge University Press: 11 August 2020
We present an empirical challenge to Jardine's (2016) assertion that only tonal spreading patterns can be unbounded circumambient, meaning that the determination of a phonological value may depend on information that is an unbounded distance away on both sides. We focus on a demonstration that the ATR harmony pattern found in Tutrugbu is unbounded circumambient, and we also cite several other segmental spreading processes with the same general character. We discuss implications for the complexity of phonology and for the relationship between the explanation of typology and the evaluation of phonological theories.
We would like to thank Judith Glover for her willingness to share her language, and James Essegbey for all his help. We are also grateful to the reviewers at Phonology, and to Sharon Rose, Jeff Heinz, Andrew Lamont, Charlie O'Hara and Caitlin Smith, as well as members of audiences at NELS 48, SCAMP 3 and the University of Chicago. Any errors are our own.