Context Matters for Tone and Intonation Processing in Mandarin.

Area of Science:

• Linguistics
• Phonetics
• Psychoacoustics

Background:

• Mandarin Chinese uses fundamental frequency (F0) for both lexical tone and sentence intonation.
• F0 cues for tone and intonation can conflict or align, posing processing challenges.
• Understanding how listeners process these cues and the role of semantic context is crucial.

Purpose of the Study:

• To investigate the processing of lexical tone and sentence intonation in Mandarin.
• To examine how F0 conflicts and congruencies between tone and intonation are perceived.
• To determine the influence of semantic context on the processing of tone and intonation.

Main Methods:

• Tone and intonation identification experiments were conducted.
• Stimuli were presented in semantically neutral and semantically constraining contexts.
• Listener performance in identifying tones and intonations was measured.

Main Results:

• Overall tone identification performance exceeded intonation identification.
• Intonation identification was influenced by the final lexical tone and semantic context.
• In constraining contexts, questions with final falling tones were identified better than rising tones.

Conclusions:

• Lexical tone processing is robust to intonational variations, regardless of semantic context.
• Semantic context facilitates intonation processing, particularly for final falling tones.
• A perceptual asymmetry exists, where semantic context aids in disambiguating intonation from tone.