Lexical frequency effects on word accent processing in Swedish

Forskningsoutput: KonferensbidragAnnan


title = "Lexical frequency effects on word accent processing in Swedish",
abstract = "Lexical frequency effects on word accent processing in SwedishSeveral studies have investigated the neurophysiological underpinnings of the Swedish word accents, “accent 1” and “accent 2” ([1]-[5]), which are known to have a strong association with morphology ([6]-[8]). For example, if the singular noun suffix -en is attached to the word stem bil ({\textquoteleft}car{\textquoteright}), the resulting word is bil1-en ({\textquoteleft}the car{\textquoteright}) where the subscript indicates which word accent is attached. However, if the plural suffix -ar is attached to the stem, the word will be associated with accent 2 (bil2-ar, {\textquoteleft}cars{\textquoteright}). The same is true for loan words: the word chatt {\textquoteleft}chat room{\textquoteright} takes accent 1 together with the singular suffix (chatt1-en) and accent 2 with the plural suffix (chatt2-ar). Furthermore, in Central Swedish, accent 2 is associated with compound words. Compounding is highly productive in Swedish, allowing the formation of novel compounds such as tr{\"a}dkrig2 ({\textquoteleft}tree war{\textquoteright}) or forskningsministerskola2 ({\textquoteleft}research minister school{\textquoteright}). Even if all constituents making up a compound would individually be accent 1 words, the compound will still have accent 2. For example, although neder1 {\textquoteleft}downwards{\textquoteright} and l{\"a}nderna1 {\textquoteleft}the lands{\textquoteright} are accent 1 words, the compound Nederl{\"a}nderna2 ({\textquoteleft}the Netherlands{\textquoteright}, example taken from [12]) has accent 2. What is interesting from the point of view of predictive models of language processing is that initial word stems with accent 2 (as opposed to stems with accent 1) could then potentially cue related accent 2 suffixes (e.g. plural, past tense) as well as a potentially infinite number of compounds. Investigations using the electroencephalography/event-related potentials (EEG/ERP) technique have found that words with accent 1 stems elicit larger ERP negativity effects as compared to accent 2 stems. This effect has previously been viewed as a positivity effect driven by accent 2{\textquoteright}s prosodic salience ([1]). However, recent investigations have shown that accent 1 stems lead to increased neural activity, meaning that the ERP effect is more likely to be driven by some feature associated with accent 1 stems instead ([4]-[5]). We propose that the accent 1 stem negativity reflects a process by which upcoming suffixes are pre-activated by the word accent. Furthermore, evidence ([3]-[4]) now indicates that accent 1 stems pre-activate their associated suffixes more strongly than accent 2 stems. In the present contribution, we present results that suggest that the stem negativity is modulated by both the token and type frequency of lexical items that are possible continuations of a particular stem.ReferencesM. Roll, M. Horne and M. Lindgren, “Word accents and morphology—ERPs of Swedish word processing,” Brain Research, vol. 1330, pp. 114–123, 2010.M. Roll, P. S{\"o}derstr{\"o}m and M. Horne, “Word-stem tones cue suffixes in the brain.” Brain Research, vol. 1520, pp. 116–120, 2013. P. S{\"o}derstr{\"o}m, M. Horne and M. Roll, “Stem tones pre-activate suffixes in the brain,” (submitted).M. Roll, P. S{\"o}derstr{\"o}m, P. Mannfolk, Y. Shtyrov, M. Johansson, D. van Westen and M. Horne, “Word tones cueing morphosyntactic structure: neuroanatomical substrates and activation time course assessed by EEG and fMRI,” Brain & Language, vol. 150, pp. 14–21, 2015.M. Roll, “A neurolinguistic study of South Swedish word accents: Electrical brain potentials in nouns and verbs,” Nordic Journal of Linguistics, vol. 38, no. 2, pp. 149–162, 2015.G. Bruce, Swedish word accents in sentence perspective. Lund: Gleerup, 1977.T. Riad, The Phonology of Swedish. Oxford: Oxford University Press, 2014.J. Rischel, “Morphemic Tone and Word Tone in Eastern Norwegian,” Phonetica, vol. 10, no. 3–4, pp. 154–164, 1963.",
author = "Pelle S{\"o}derstr{\"o}m and Merle Horne and Mikael Roll",
year = "2016",
month = feb,
day = "19",
language = "English",
note = "Fonologi i Skandinavien, FiSK ; Conference date: 19-02-2016 Through 20-02-2016",
url = "https://sprak.gu.se/Aktuellt/kalendarium/Aktuellt_detalj/?eventId=3051429348",