New Publications from Chacón
Professor Dustin Chacón recently published two articles. The first, “Disentangling semantic prediction and association in processing filler-gap dependencies: An MEG study in English,” co-authored with Liina Pylkkänen (NYU), appeared in Language, Cognition and Neuroscience.
In this study, we examine plausible filler-gap dependencies (‘which counters did the maids clean?’) with sentences that have an unexpected thematic role (‘which mops did the maids clean __ fastidiously?’). We find that neural activity distinguishes these kinds of sentences ~800ms in right inferior frontal cortex. This is longer and in a different location than other plausible/implausible argument-verb relations (‘Do you think maids/mops clean fastidiously?’), which are distinguished ~400ms in left inferior frontal cortex.
The second article, “Evaluating the time courses of morpho-orthographic, lexical, and grammatical processing following rapid parallel visual presentation: An EEG investigation in English,” co-authored with Donnie Dunagan (UGA), Tyson Jordan (UGA), John Hale (UGA/JHU), and Liina Pylkkänen (NYU), appeared in Cognition.
In this paper, we examine how the brain responds to short sentences displayed for 200ms. We found that the brain distinguishes grammatical sentences (the dogs chase a ball) from scrambled alternatives (ball a chase dogs the) around ~300ms. We show that this brain response is different from brain responses sensitive to (il)legal letter strings, morphological form, and word frequency, suggesting a distinct stage of processing grammatical structure in short sentences read quickly.