NOTE: Page currently under construction. Some links will be broken (indicated via strikethrough). Everything should be fixed by the end of April, 2023. If you have any questions about my research or the content provided (or under construction) here, please do email me.
Current projects
Bootstrapping the lexicon: Toward bottom-up approaches to the study of individual vocabularies
Summary
In this project we develop a novel approach to the study of an individual's mental lexicon that is participant-driven, and less dependent on external norms and language standards. Present methods are top-down in that they use samples from the standardized vocabulary in formal dictionaries to probe that person's linguistic knowledge. This approach assumes (a) the existence of a standard, and (b) that items outside of that standard play a minor role in that person's vocabulary. We propose a bottom-up approach to studying individual vocabularies, by having British and American English speakers complete a series of short word-association tasks where the stimuli in later sessions are drawn from their responses in earlier sessions (i.e., bootstrapping the probing of their own lexicon), thus allowing them to explore their own vocabulary space and provide us information about the structure of their individual lexicons that is not biased by external standards. This information will be of use to both language/education researchers and speech clinicians.
Project details
- PI: Charles Redmon
- Team: Charles Redmon (Essex, Oxford), Nichol Castro (Buffalo)
- Funding: Small Research Grant from the British Academy and Leverhulme Foundation (2021-2023)
Complexity in Derivational Morphology: Theory and experimental evidence
Summary
One of the core ways a language expands its vocabulary is by derivation: i.e., taking an existing word and modifying it in some way to produce a different meaning (e.g., well → unwell) or to change the role it can play in a sentence (well → wellness). Words such as unwell and wellness are described as complex because of the multiple parts that contribute to their meaning and grammar (i.e., un+well, well+ness). One longstanding question in linguistics and psychology is how do language users process complex words such as these when reading or listening? Do they break them down into their constituent parts, thus recognizing the meaning of well and that the prefix un- negates it (i.e., 'not well'), or do they simply access the meaning of the whole word irrespective of its internal complexity; i.e., recognizing that unwell means something like sick? This project investigates this question by recording language processing behaviour (performance on computer-based language tasks) and neural activity (the pattern of electrical signals generated in the brain while reading/listening) from native speakers of German and English at the University of Konstanz and the University of Oxford, respectively. In addition, we apply linguistic theory and analysis of the historical development of the lexicons of German and English (as well as related languages such as Dutch and the Scandanavian languages) to understand the evolution of complexity in language, and the mental processes underlying that evolution.
Project details
- PIs: Aditi Lahiri, Carsten Eulitz
- Team: Aditi Lahiri (Oxford), Carsten Eulitz (Konstanz), Frans Plank (Konstanz, Oxford), Charles Redmon (Essex, Oxford), Anna Gupta (Konstanz)
- Funding: Joint AHRC-DFG Grant (2020-2024)
Works in progress
**Note: I have a long backlog of work that I will be submitting over the next year. This list is here just to give you an idea about what to look for in the near future. All of these studies have been done but are in various stages of write-up. Titles are all working titles and may change on submission.
- Redmon, Charles, Anna Gupta, Carsten Eulitz, Aditi Lahiri, and Frans Plank. Derivational complexity in the brain: ERP evidence from German and English un-prefixed adjectives.
- Gupta, Anna, Charles Redmon, Carsten Eulitz, Aditi Lahiri, and Frans Plank. Delayed priming of complex adjectives in German and English.
- Redmon, Charles, Aditi Lahiri, and Frans Plank. Tracing the development of mis- prefix prosody in Germanic.
- Redmon, Charles, Seulgi Shin, and Panying Rong. ArtLex-en: A single-speaker database of electromagnetic articulographic and acoustic data on thousands of English words and syllables.
- Redmon, Charles, and Phongshak Phom. Digital resources for the analysis of Phom phonology, orthography, and the lexicon.
- Redmon, Charles, and Triksimeda Sangma. Presenting a new open-access digital lexicon of Garo and the role of such resources in the study of South Asian phonology.
- Redmon, Charles, Meghavarshini Krishnaswamy, and Indranil Dutta. Modeling coarticulation in a dense coronal system: Acoustic and ultrasound data from Malayalam.
- Redmon, Charles. Gaussian process modeling of psycholinguistic data: Event-related potentials and eye fixation trajectories.
- Redmon, Charles, and Allard Jongman. English obstruent acoustics I-V: Parameter measurement, reliability, and lexically discriminative power. [this is a 5-paper series on the acoustics of English obstruents]
- Redmon, Charles, Trevor Swanson, and John Symons. Null models in the analysis and interpretation of network properties.
Publications
- Redmon, Charles, Annie Tremblay, and Michael Vitevitch (under review). Tracking the time course of phonological neighborhood clustering effects in spoken word recognition. preprint
- Redmon, Charles, and Allard Jongman (to appear). From interfaces to system embedding: Phonetic contrasts in the lexicon. In M. Schlechtweg (Ed.), Interfaces of Phonetics. De Gruyter Mouton. preprint
- Redmon, Charles, Keith Leung, Yue Wang, Bob McMurray, Allard Jongman, and Joan Sereno (2020). Cross-linguistic perception of clearly spoken English tense and lax vowels based on auditory, visual, and auditory-visual information. Journal of Phonetics, 81, 1-25. link, pdf
- Redmon, Charles, and Allard Jongman (2018). Source characteristics of voiceless dorsal fricatives. Journal of the Acoustical Society of America, 144(1), 242–253. link, pdf
Proceedings
- Redmon, Charles, Matthew C. Kelley, and Benjamin V. Tucker (2022). Introducing the Speech and Language Resource Bank: A central index of resources for research and teaching. Proceedings of Meetings on Acoustics, 42. link
- Redmon, Charles, Seulgi Shin, and Panying Rong (2019) KU-ArtLex: A single-speaker EMA database for modeling the articulatory structure of the lexicon. Proceedings of the International Congress of Phonetic Sciences. pdf
- Dutta, Indranil, Charles Redmon, Meghavarshini Krishnaswamy, Sarath Chandran, & Nayana Raj (2019). Articulatory complexity and lexical contrast density in models of coronal coarticulation in Malayalam. Proceedings of the International Congress of Phonetic Sciences. pdf
- Redmon, Charles (2016). Effects of positional allophony on the acoustic classification of posterior obstruents in Assamese. Proceedings of Meetings on Acoustics, 26. link
- Phom, Phongshak, and Charles Redmon (2016). Quantifying the information carried in tonal contrasts in Phom. Proceedings of the 22nd Himalayan Languages Symposium. pdf
- Sarmah, Priyankoo, and Charles Redmon (2013). Acoustic separation of high-central vowels in Bodo, Rabha, and Korean. Proceedings of Acoustics 2013 New Delhi. 929-934. pdf
Presentations
- Redmon, Charles, Aditi Lahiri, and Frans Plank (2023). The prosodic structure of Germanic mis-: Diachrony and synchrony. Paper to be presented at the 30th Manchester Phonology Meeting, Manchester, UK.
- Tucker, Benjamin V., Matthew C. Kelley, and Charles Redmon (2021). A place to share teaching resources: The Speech and Language Resource Bank. Paper presented at the 180th Meeting of the Acoustical Society of America, Virtual.
- Redmon, Charles, and Allard Jongman (2021). Strong interfaces: Exploring the structure of the phonetic system as embedded in higher-order systems of contrast. Paper presented at Interfaces of Phonetics, Oldenburg, Germany.
- Redmon, Charles (2020). Revisiting the basis of phonological representations: Word form distinction and the articulatory-acoustic structure of the lexicon. Paper presented at the Berkeley Linguistic Society Workshop on Phonological Representations: At the Crossroad between Gradience and Categoricity, Berkeley, California.
- Redmon, Charles, and Allard Jongman (2019). Lexically dependent estimation of acoustic information in speech III: Cross-splicing verification of cue weights. Poster presented at the 178th Meeting of the Acoustical Society of America, San Diego, California.
- Redmon, Charles, Seulgi Shin, and Panying Rong (2019). KU-ArtLex: A single-speaker EMA database for modeling the articulatory structure of the lexicon. Paper presented at the 15th International Congress of Phonetic Sciences, Melbourne, Australia.
- Dutta, Indranil, Charles Redmon, Meghavarshini Krishnaswamy, Sarath Chandran, and Nayana Raj (2019). Articulatory complexity and lexical contrast density in models of coronal coarticulation in Malayalam. Paper presented at the 15th International Congress of Phonetic Sciences, Melbourne, Australia.
- Redmon, Charles, and Allard Jongman. (2019). Lexically dependent estimation of acoustic information in speech II: Minimal pair confusability. Poster presented at the 177th Meeting of the Acoustical Society of America, Louisville, Kentucky.
- Redmon, Charles, and Allard Jongman (2018). Lexically dependent estimation of acoustic information in speech. Poster presented at the 176th Meeting of the Acoustical Society of America, Victoria, BC, Canada.
- Sereno, Joan, Allard Jongman, Yue Wang, Ghassan Hamarneh, Lisa Tang, Saurabh Garg, Paul Tupper, Bob McMurray, Charles Redmon, Yuyu Zeng, Beverley Hannah, Keith Leung, and Sylvia Cho (2018). Linking production and perception of clear speech. Poster presented at the 176th Meeting of the Acoustical Society of America, Victoria, BC, Canada.
- Redmon, Charles, and Triksimeda Sangma (2018). On the importance of machine-readable lexicons in the study of South Asian phonologies: Demonstrations from a 16,000-word database of Garo. Paper presented at Formal Approaches to South Asian Languages 8, Wichita, KS, USA.
- Redmon, Charles, Allard Jongman, and Jie Zhang (2017). Distributional factors in Telugu sibilant production. Poster presented at the 174th Meeting of the Acoustical Society of America, New Orleans, LA, USA. pdf
- Redmon, Charles, Allard Jongman, and Michael Vitevitch (2017). Towards a topology of phonetic contrast: Quantifying the information encoded by acoustic cues across items in the lexicon. Poster presented at the 50th Anniversary of the KU Linguistics Department, Lawrence, KS, USA.
- Leung, Keith, Charles Redmon, Yue Wang, Allard Jongman, and Joan Sereno (2016). Cross-linguistic perception of clearly spoken English tense and lax vowels based on auditory, visual, and auditory-visual information. Poster presented at the 5th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan, Honolulu, HI, USA.
- Redmon, Charles, and Allard Jongman (2016). Source properties of dorsal fricatives. Poster presented at the 5th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan, Honolulu, HI, USA.
- Phom, Phongshak, and Charles Redmon (2016). Quantifying the information carried in tonal contrasts in Phom. Poster presented at the 22nd Himalayan Languages Symposium, Guwahati, AS, India
- Redmon, Charles (2016). Acoustic classification of velar fricatives in Assamese. Poster presented at the 171st Meeting of the Acoustical Society of America, Salt Lake City, UT, USA.
- Dutta, Indranil, and Charles Redmon (2013). Coarticulation and contrast in static and dynamic models of second formant trajectories. Poster presented at the 166th Meeting of the Acoustical Society of America, San Francisco, CA, USA. pdf
- Sarmah, Priyankoo, and Charles Redmon (2013). Acoustic separation of high-central vowels in Bodo, Rabha, and Korean. Paper presented at Acoustics 2013 New Delhi, New Delhi, DL, India.
- Dutta, Indranil, and Charles Redmon (2013). Phonetic routes of tonogenesis in modern Northwestern Indo-Aryan languages. Paper presented at the 2nd Workshop on Tone and Intonation, Hyderabad, AP, India.
- Redmon, Charles, and Bipasha Patgiri (2012). Prominence and spectral variance in Assamese. Paper presented at the 34th All India Conference of Linguists, Shillong, ML, India.