Reiko Mazuka CV

Conference Proceedings of the Annual Conference of the International Speech Communication Association Interspeech · January 1, 2022 The development of allophonic variants of phonemes is poorly understood. Thus, this study aimed to examine when children typically begin to articulate a phoneme with the same allophonic variant typically used by adults. Japanese children aged 5-13 years an ... Full text Cite

Nasal consonant discrimination in infant- And adult-directed speech

Conference Proceedings of the Annual Conference of the International Speech Communication Association Interspeech · January 1, 2019 Infant-directed speech (IDS) is thought to play a facilitating role in language acquisition, by simplifying the input infants receive. In particular, the hypothesis that the acoustic level is enhanced to make the input more clear for infants, has been exte ... Full text Cite

How to use context to disambiguate overlapping categories: The test case of Japanese vowel length

Conference Proceedings of the 40th Annual Meeting of the Cognitive Science Society Cogsci 2018 · January 1, 2018 Infants learn the sound categories of their language and adults successfully process the sounds they hear, even though sound categories often overlap in their acoustics. Most researchers agree that listeners use context to disambiguate overlapping categori ... Cite

The role of prosody and speech register in word segmentation: A computational modelling perspective

Conference Acl 2017 55th Annual Meeting of the Association for Computational Linguistics Proceedings of the Conference Long Papers · January 1, 2017 This study explores the role of speech register and prosody for the task of word segmentation. Since these two factors are thought to play an important role in early language acquisition, we aim to quantify their contribution for this task. We study a Japa ... Full text Cite

Constructing the corpus of infant-directed speech and infant-like robot-directed speech

Conference Hai 2015 Proceedings of the 3rd International Conference on Human Agent Interaction · October 21, 2015 The characteristics of the spoken language used to address infants have been eagerly studied as a part of the language acquisition research. Because of the uncontrollability factor with regard to the infants, the features and roles of infantdirected speech ... Full text Cite

Infant-directed speech as a window into the dynamic nature of phonology

Conference Laboratory Phonology · October 1, 2015 Theoretical frameworks of phonology are built largely on the basis of idealized speech, typically recorded in a laboratory under static conditions. Natural speech, in contrast, occurs in a variety of communicative contexts where speakers and hearers dynami ... Full text Cite

The F0 fall delay of lexical pitch accent in Japanese Infant-directed speech

Conference 13th Annual Conference of the International Speech Communication Association 2012 Interspeech 2012 · December 1, 2012 The current study examined the acoustic modifications of the lexical pitch accent in Tokyo Japanese infant-directed speech (IDS), with the focus on the F0 fall delay, where the alignment of the F0 turning points associated with pitch accents were delayed w ... Cite

Individual differences in sentence processing: Effects of verbal working memory and cumulative linguistic knowledge

Conference · January 1, 2011 The present study investigates individual differences in sentence processing. The Verbal Working Memory (VWM) model and the Two Factor Model, involving VWM and Cumulative Linguistic Knowledge (CLK), are compared in three self-paced reading experiments, in ... Full text Cite

The perception of non-native lexical pitch accent by speakers of 'accentless' Japanese dialects

Conference Proceedings of the International Conference on Speech Prosody · January 1, 2010 While Standard (Tokyo) Japanese has a lexical tonal system known as a system of 'lexical pitch accent', there are some varieties of Japanese, called 'accentless' dialects, which do not have any lexical tonal phenomena. We investigated how the speakers of t ... Cite