Speaker
R. Harald Baayen
(U Tubingen)
Description
We present two statistical methods that make it possible to assess whether the effect of predictors
on a response variable vary within the distribution of the response. Dynamic survival analysis is
applicable to durational responses such as reaction times, fixation durations, and acoustic durations.
Quantile regression can be applied to any kind of measurement, not only durations but also tongue
positions or the amplitude of the brain’s electrophysiological response to some stimulus. Dynamic
survival analysis applied to auditory lexical decisions to English compounds revealed early effects
of compound frequency and late effects of modifier frequency, replicating Schmidtke et al. (2017).
The competing risks setting of dynamic survival analysis enabled a further analysis of the nonword
responses, indicating that such error responses are likely to arise due to intrusion of the modifier.
A quantile regression applied to articulatory trajectories of the tongue as revealed by electromagnetic
articulography showed that regular present and past tense inflections of English verbs are
co-articulated more strongly when more frequent, and that this effect was especially prominent
when the general position of the tongue was higher. Both sets of results argue against decompositional
theories of morphology, and fit well with the discriminative perspective on lexical processing
as well as with Word and Paradigm morphology.
Primary author
R. Harald Baayen
(U Tubingen)
