Abstract

Recent articulometry studies have shown that the most common speech errors that occur in repetitive tasks are gestural intrusions (Goldstein et al., 2007). It was hypothesized that these can be understood as luctuations and/or shifts in oscillatory mode de ined over the set of vocal tract constriction effectors. For example, when speakers repeat the sequence cop top in time to a metronome, typical productions show that the tongue tip oscillates with alternating amplitude: the tongue tip is raises to a constricted position during an intended/t/(high amplitude), but raises only a small amount during an intended/k/(low amplitude). During repetition, however, individual productions can be observed when the tongue tip is has high amplitude on two successive cycles, effectively, producing an extra, intrusive tongue tip closure (or near closure) during the/k/. In some cases, the equal amplitude mode continues for a several …

Date

2011

Authors

Adam Lammert, Michael Proctor, Louis Goldstein, Marianne Pouplier, Shrikanth Narayanan

Journal

Proc. ISSP