Research

Sentence-Final Particle (SFP) project 
 
I have been exploring how native Japanese speakers use sentence-final expressions (e.g., -ne and -yo) to modulate interpersonal distance with the others, utilizing neuroimaging techniques such as EEG and MRI (e.g., Kiyama, Verdonschot, Xiong, & Tamaoka, 2018). My long-term goal is to provide cross-linguistic insights into how SFPs play roles in face-to-face communication among speakers of East-Asian Languages, with particular focus on its individual differences and developmental changes. I am using some auditory materials for my SFP experiments as the following example:
 
日本語母語話者が人とやりとりをする際に、終助詞「ね」や「よ」などの文末表現を使ってどのように相手との心的距離を調節しているかを、MRIや脳波などの脳機能イメージング手法を援用して調べています(例えば Kiyama, Verdonschot, Xiong, & Tamaoka, 2018)。将来的には、終助詞が東アジア言語話者の対面コミュニケーションに果たす役割を、その個人差や発達的変化とあわせて、通言語的に明らかにしたいと考えています。実験には、以下のような音声刺激を使っています。

 
 
Typical
particle
Orientation First turn Second turn
-ne Addressee 今度佐藤さんたちと温泉に行くんだ。

Kondo Satou-san-tati-to 
soon  Mr. Satou-others-COM 

onsen-ni iku-n-da.
spa-DAT go-NMLZ-COP

‘(I)’m going to the spa with
Mr. Satou and others soon.’
本当に温泉が好きだね(よ)。

Hontooni onsen-ga  
really   spa-NOM

suki-da-ne (-yo).
like-COP-SFP

‘(You) really like the spa.’

 -yo  Addresser もうお昼ご飯食べた?

Moo   ohirugohan
already lunch

tabe-ta?
eat-PST


‘Did (you) already eat lunch?’
近所でうどん食べたよ(ね)。

Kinjo-de    udon
nearby-LOC noodle

tabe-ta-yo (-ne).
eat-PST-SFP

‘(I) ate noodle nearby.’

 Notes:The abbreviations represent the followings. COM [Commitative case marker], DAT [Dative case marker], NMLZ [Nominalizer], COP [Copula], NOM [Nominative case marker], SFP [Sentence-final particle], PST [Past], LOC [Locative case marker]. Atypical marker is between parentheses.
 
 The previous turn of the addressee-oriented utterance  相手志向発話を作る先行発話: Sound file
 The addressee-oriented utterance ending with -ne 終助詞「ね」で終わる相手志向発話: Sound file
 
 
Kiyama, S., Verdonschot, R., Xiong, K., & Tamaoka, K. (2018, online first). Individual mentalizing ability boosts flexibility toward a linguistic marker of social distance: An ERP investigation. Journal of Neurolinguistics.