Mandarin is a tone language that is spoken by billions of people in the world. Despite huge demand, there is a lack of assessment and treatment tools targeting Mandarin speakers with communication disorders. To better understand the speech profile of Mandarin speakers with communication disorders, this dissertation first examined contrastive…

Suprasegmental features (i.e., features realized through pitch, volume, and/or duration changes) are particularly difficult for second language learners. This has led to the creation of many different methods of training, often employing the use of experimenter or instructor-created training materials. However, the use of authentic materials for…

F0 contours convey multiple types of information, including lexical and post-lexical meanings, as well as affective and socio-indexical indicators. This dissertation investigates the interaction between lexical tone and sentence-level intonation in Thai, focusing on how sentence position influences the acoustic realization and perceptual…

Mandarin lexical tone learning has repeatedly been identified as a difficult linguistic feature for non-native speakers of tonal languages like English, even for native English learners of Mandarin at high proficiencies (e.g., Pelzl et al., 2019b). Sound perception training has been shown to help native English speakers perceive lexical tone…

Dynamic visuospatial support (DVS) is an effective tool for helping people learn linguistic tones (Hannah et al., 2017, Morett et al., 2022, Zhen et al., 2019), and learn words with these tonal categories (Baills et al., 2019, Morett et al., 2015). Progress in the field of embodied cognition and learning has led to recent emphasis on the pitch…

This dissertation investigates Voice Onset Time (VOT), which serves as an essential property for differentiating plosive consonants in L1 and L2 Mandarin Chinese. It surveys VOT variations and demonstrates that they are affected by several phonetic and phonological properties, e.g., lexical tone, place of articulation (POA), speech rate,…

This dissertation presents three studies that examined issues related to the production and the perception of pitch in a tone language. The first study examined linguistic contexts that may modulate consonant-induced pitch perturbations (CF0) in a tone language. Previous studies have produced mixed findings regarding the role of linguistic…

In this dissertation, I investigated how cognitive resources as well as formal, and informal language experience impact language learning in two studies. In the first study (Chapter 2), I examined the learning of Spanish grammatical gender by Chinese international students who were studying abroad in the US. The goal of that study was to uncover…