Last week, undergraduate sophomore Raymond Xiong presented @iberent.bsky.socialt.co/oP5X8qeuzd
Scientific Reports - Phonetic categorization relies on motor simulation, but combinatorial phonological computations are abstract
Thank you to the authors for your work, we look forward to following your progress! cc: @iberent.bsky.social, Rachel Theodore, Peter Fried, Daniel Manning, and Alvaro Pascual-Leone
❔3️⃣: Experiment 2 shows that stimulation to the pars triangularis reduces sensitivity to phonetic and syllabic structure for female participants. What is the mechanism that explains how declined structure sensitivity causes a response bias towards disyllables?
[cont.] will it also mediate the perception of other phonetic features, such as the place of articulation?
❔2️⃣: Experiment 1 shows that stimulation to the labial motor area mediates the perception of voicing, even though it is a feature articulated by the larynx. In a similar experiment setting, will the laryngeal motor system mediate the perception of voicing contrast, and...
[cont.] midpoint of the “da-ta” continuum. What could be some of the potential confounding factors that contribute to this deviation?
❔1️⃣: In Experiment 1, stimulation to the pars triangularis applied 350ms and 450ms after the stimuli generates significantly more voiced responses than a 50-50 random guessing does for the perceptual...
🤍3️⃣: In the second experiment, the response bias towards disyllables during stimulation of the pars triangularis for female participants suggests gender differences in the brain regions that engage in the combination function, which is particularly interesting.
🤍2️⃣: The significantly different response accuracies between monosyllables with different onset types suggest that participants are generally less sensitive to phonetic structures that are more difficult to articulate, conforming with previous literature.
🤍1️⃣: Including ambiguous sound pairs with voicing contrast addresses the confounding effects of response selection in the experiment focusing on the categorization function.