The Sequence Recall Task and Lexicality of Tone: Exploring Tone "Deafness"

Area of Science:

• Linguistics
• Psycholinguistics
• Phonetics
• Phonology

Background:

• Lexical tone's impact on language perception is well-documented, contrasting tonal Chinese with non-tonal Germanic languages.
• Typological classification of word prosodic systems remains debated, particularly regarding pitch accent languages and the phonological nature of tone.
• The Sequence Recall Task (SRT) has previously differentiated languages with and without word stress.

Purpose of the Study:

• To investigate if the Sequence Recall Task (SRT) can distinguish between languages with and without lexical tone.
• To explore how phonological and phonetic properties of a language's tone system influence SRT performance.
• To contribute to the typological debate on word prosody.

Main Methods:

• Administered SRTs using monosyllabic tonal contrasts to participants from Indonesian (non-tonal), Swedish (semi-tonal), and Mandarin (tonal) language backgrounds.
• Hypothesized that high performance in a tonal SRT would indicate the lexical status of tone.
• Analyzed accuracy scores in relation to tone system complexity, contrast existence, and phonetic salience.

Main Results:

• A tonal SRT did not reliably discriminate between tonal and non-tonal languages in a typologically diverse group.
• Performance was affected by specific phonological and phonetic characteristics of the languages' tone systems.
• The effectiveness of SRT in distinguishing lexical tone appears contingent on language-specific features.

Conclusions:

• The SRT is unlikely to be a universal tool for distinguishing lexical tone across diverse languages due to inherent variations in tone systems.
• Future research should focus on comparing closely related tonal and non-tonal varieties of the same language to refine the SRT's utility.
• Further investigation is needed to understand the interplay between phonetic/phonological properties and tonal processing in cross-linguistic comparisons.