Key research themes
1. How do phonetic and acoustic vowel properties distinguish gender and ethnic varieties in Nigerian English?
This research theme addresses the acoustic characterization of vowel qualities in Nigerian English (NE), focusing on gender differences among undergraduate speakers and ethnic dialectal distinctions such as Yoruba, Hausa, and Ebira English. Understanding vowel formant patterns and realizations across these sociolinguistic variables provides insights into gendered speech patterns and substrate influence from indigenous languages, which are crucial for accurate phonological description and intelligibility assessment within Nigerian English varieties.
2. What are the phonotactic constraints and consonant cluster strategies employed in Nigerian English, especially among broadcasters and children?
This theme investigates syllable structure and consonant cluster phonotactics within Nigerian English as manifested in both adult professional speech and child language acquisition. It emphasizes the role of Optimality Theory in modeling phonological processes such as epenthesis and deletion used to simplify consonant clusters not permissible in many Nigerian languages. Findings shed light on how Nigerian English phonotactics diverge from Standard British English, revealing mechanisms of cluster reduction, vowel insertion, and cluster simplification driven by markedness constraints and substrate influence.
3. How do stress patterns and intonation in Nigerian English reflect regional, ethnic, and educational variation?
This research area examines variation in stress assignment and intonation patterns across Nigerian English varieties, particularly those influenced by Yoruba English and emerging New English Native Speakers in Nigeria. The focus is on prosodic features—such as primary stress placement in polysyllabic words and phrasal stress assignment—and intonation tune realization in polite requests and attitudinal contexts, investigating how these suprasegmental characteristics correlate with ethnicity, educational attainment, and language contact.