Category Archives: Papers

New paper published by Masapollo et al.: Articulatory peripherality modulates relative attention to the mouth during visual vowel discrimination (J Acoust Soc Am. 141(5): 4037)

Congratulations to Matt, Lauren, and Jim for a paper published recently in the Journal of the Acoustic Society of America! The title and abstract are as follows:

Articulatory peripherality modulates relative attention to the mouth during visual vowel discrimination.

Masapollo, Polka, and Ménard (2016) have recently reported that adults from different language backgrounds show robust directional asymmetries in unimodal visual-only vowel discrimination: a change in mouth-shape from one associated with a relatively less peripheral vowel to one associated with a relatively more peripheral vowel (in F1-F2 articulatory/acoustic vowel space) results in significantly better performance than a change in the reverse direction. In the present study, we used eye-tracking methodology to examine the gaze behavior of English-speaking subjects while they performed Masapollo et al.’s visual vowel discrimination task. We successfully replicated this directional effect using Masapollo et al.’s visual stimulus materials, and found that subjects deployed selective attention to the oral region compared to the ocular region of the model speaker’s face. In addition, gaze fixations to the mouth were found to increase while subjects viewed the more peripheral vocalic articulations compared to the less peripheral articulations, perhaps due to their larger, more extreme oral-facial kinematic patterns. This bias in subjects’ pattern of gaze behavior may contribute to asymmetries in visual vowel perception.

The full paper can be found here.

New paper published by Cohen Priva et al.: Converging to the baseline: Corpus evidence for convergence in speech rate to interlocutor’s baseline. (J Acoust Soc Am. 141(5): 2989)

Congratulations to Uriel, Emily, and Lee for a paper published recently in the Journal of the Acoustic Society of America! The title and abstract are as follows:

Converging to the baseline: Corpus evidence for convergence in speech rate to interlocutor’s baseline.

Speakers have been shown to alter their speech to resemble that of their conversational partner. Do speakers converge with their interlocutor’s baseline, or does convergence stem from conversational properties that similarly affect both parties? Using the Switchboard corpus, this paper shows evidence for speakers’ convergence in speech rate to the other party’s baseline, not only to conversation-specific properties. Study 1 shows that the method for calculating speech rate used in this paper is powerful enough to replicate established findings. Study 2 demonstrates that speakers are mostly affected by their own behavior in other contexts, but that they also converge to their interlocutor’s baseline, established using the interlocutor’s behavior in other contexts. Study 2 also shows that speakers change their speech rate in response to the interlocutor’s characteristics: speakers speak more slowly with older speakers regardless of the interlocutor’s speech rate, and male speakers speak faster with other male speakers.

The full paper can be found here.