Purpose: Children with cochlear implants (CIs) face challenges in acquiring tonal languages, as CIs do not efficiently code pitch information. Mandarin is a tonal language with lexical tones and tonal processes such as neutral tone and tone sandhi, exhibiting contextually conditioned tonal realizations. Previous studies suggest that early…

Purpose: The aim of this study was to explore when and how Mandarin-speaking children use contextual cues to normalize speech variability in perceiving lexical tones. Two different cognitive mechanisms underlying speech normalization (lower level acoustic normalization and higher level acoustic-phonemic normalization) were investigated through the…

The ability to map similar sounding words to different meanings alone is far from enough for successful speech processing. To overcome variability in the speech signal, young learners must also recognize words across surface variations. Previous studies have shown that infants at 14 months are able to use variations in word-internal cues (i.e.,…

Children undergo gradual progression in their ability to differentiate correct and incorrect pronunciations of words, a process that is crucial to establishing a native vocabulary. For the most part, the development of mature phonological representations has been researched by investigating children's sensitivity to consonant and vowel variation,…

Linguistic tones play an important role in expressing lexical and grammatical meaning in tone languages. A small change in the pitch of a word can result in an entirely different meaning. A logical question for those who document tone languages is whether or not singers preserve linguistic tone when singing and if so, to what degree? I begin by…

Purpose: This research compared individuals from two first language (L1) backgrounds (English and Japanese) to determine how they may differ in their perception of Mandarin tones (Tones 1 vs. 2 [T1-T2], Tones 1 vs. 3 [T1-T3], Tones 1 vs. 4 [T1-T4], Tones 2 vs. 3 [T2-T3], Tones 2 vs. 4 [T2-T4], Tones 3 vs. 4 [T3-T4]) on account of their L1. Method:…

Studying musical text effectively reinforces grammar structures and vocabulary taught in class while simultaneously developing cultural literacy, a critical component in second language acquisition. Musical text facilitates a multimodal learning experience as it combines the verbal and aural modes, and is often accompanied by the visual mode. In…

Purpose: Cantonese lexical tone awareness is closely associated with 1st language Cantonese vocabulary knowledge, but its role in 2nd language English vocabulary knowledge was unclear. We addressed this issue by investigating whether and, if so, how Cantonese lexical tone awareness contributes to English expressive vocabulary knowledge in Hong…

Purpose: This study investigated the impact of metaphoric actions--head nods and hand gestures--in producing Mandarin tones for first language (L1) and second language (L2) speakers. Method: In 2 experiments, participants imitated videos of Mandarin tones produced under 3 conditions: (a) speech alone, (b) speech + head nods, and (c) speech + hand…

To track the course of development in children's fine-grained perception of Mandarin tones, the present study explored how categorical perception (CP) of Mandarin tones emerges along age among 70 four- to seven-year-old children and 16 adults. Prominent discrimination peaks were found for both the child and the adult groups, and they were well…

Lexical tone is a linguistic feature which can present difficulties for second language learners wanting to revitalize their heritage language. This is true not only from the standpoint of understanding and pronunciation, but also because tone is often under-documented and resources are limited or too technical to be useful to community members.…

Successful listening in a second language (L2) involves learning to identify the relevant acoustic-phonetic dimensions that differentiate between words in the L2, and then use these cues to access lexical representations during real-time comprehension. This is a particularly challenging goal to achieve when the relevant acoustic-phonetic…

Purpose: Although variability of training materials has the potential to benefit the learning of lexical tones, the benefit is contingent on an individual's pitch aptitude. Previous studies did not segregate immediate learning and consolidation after an overnight interval, and little is known about how pitch aptitude differences affect…

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,…

Purpose: The primary purpose of this study was to explore the audiovisual speech perception strategies.80.23.47 adopted by normal-hearing and deaf people in processing familiar and unfamiliar languages. Our primary hypothesis was that they would adopt different perception strategies due to different sensory experiences at an early age, limitations…