Automatic detection of natural phonological classes in Russian Sign Language
3rd International Scienti칁c Conference “Contemporary Research in Phonetics and Phonology: Methods, Aspects and Problems”. Abstracts.
4th International Scienti칁c Conference “Contemporary Research in Phonetics and Phonology: Methods, Aspects and Problems”, Riga, May 11–12, 2017. Abstracts.
Speech production, both overt and covert, down-regulates the activation of auditory cortex. This is thought to be due to forward prediction of the sensory consequences of speech, contributing to a feedback control mechanism for speech production. Critically, however, these regulatory effects should be specific to speech content to enable accurate speech monitoring. To determine the extent to which such forward prediction is content-specific, we recorded the brain's neuromagnetic responses to heard multisyllabic pseudowords during covert rehearsal in working memory, contrasted with a control task. The cortical auditory processing of target syllables was significantly suppressed during rehearsal compared with control, but only when they matched the rehearsed items. This critical specificity to speech content enables accurate speech monitoring by forward prediction, as proposed by current models of speech production. The one-to-one phonological motor-to-auditory mappings also appear to serve the maintenance of information in phonological working memory. Further findings of right-hemispheric suppression in the case of whole-item matches and left-hemispheric enhancement for last-syllable mismatches suggest that speech production is monitored by 2 auditory-motor circuits operating on different timescales: Finer grain in the left versus coarser grain in the right hemisphere. Taken together, our findings provide hemisphere-specific evidence of the interface between inner and heard speech.
especially impaired on regular past-tense forms like played, whether the task requires production, comprehension or even the judgement that "play" and "played" sound different. Within a dual-mechanism account of inflectional morphology, these deficits reflect disruption to the rule-based process that adds (or strips) the suffix -ed to regular verb stems; but the fact that the patients are also impaired at detecting the difference between word pairs like "tray" and "trade" (the latter being a phonological but not a morphological twin to "played") suggests an important role for phonological characteristics of the regular past tense. The present study examined MEG brain responses in healthy participants evoked by spoken regular past-tense forms and phonological twin words (plus twin pseudowords and a non-speech control) presented in a passive oddball paradigm. Deviant forms (played, trade, kwade/kwayed) relative to their standards (play, tray, kway) elicited a pronounced neuromagnetic response at approximately 130 ms after the onset of the affix; this response was maximal at sensors over temporal areas of both hemispheres but stronger on the left, especially for played and kwayed. Relative to the same standards, a different set of deviants ending in /t/--plate, trait and kwate--produced stronger difference responses especially over the right hemisphere. Results are discussed with regard to dual- and single-mechanism theories of past tense processing and the need to consider neurobiological evidence in attempts to understand inflectional morphology.
We present a database of uvular consonant subsystems of indigenous languages of the Caucasus from all branches (Northwest Caucasian, East Caucasian and Kartvelian). Data for the database were collected from existing language descriptions and field work. All in all, 39 languages were analyzed. This database allows us to systematically compare the inventories of uvular consonants in the Caucasian languages and create a predictive model for the co-occurrence of particular uvular consonants.
The article proposes an analysis of three semantic fields in Russian Sign Language (RSL): ‘thick’, ‘thin’ and ‘pointed’. These fields are covered in RSL with a particular group of signs, namely, size and shape specifiers (SASSes). The paper describes features of SASSes in other sign languages, known from previous research, and proposes an analysis of these signs in RSL based on a detailed study of their contexts. Particularly, the article argues for distinguishing two types of components in these signs (specified and non-specified ones), discusses the semantics of non-manual markers and describes two morphological forms of SASSes.