Newborn brain responses measuring feature and change detection and predicting later language development in children with and without familial risk for dyslexia
Julkaistu sarjassa
Jyväskylä studies in education, psychology and social researchTekijät
Päivämäärä
2003Oppiaine
PsykologiaLukemisen erityisvaikeuksia eli kehityksellistä dysleksiaa on noin 3-10 prosentilla suomalaisista koululaisista. Vaikeudet haittaavat eri tavoin heidän koulusuoriutumistaan ja vaikuttavat näin myös tulevaisuuden urasuunnitelmiin.Tomi Guttorm on väitöskirjatyössään verrannut vastasyntyneiden riskiryhmään kuuluvien ja muiden vauvojen kielellistä prosessointia. Hän toteaa, että jo muutaman päivän iässä aivoista tehtyjen havaintojen perusteella voidaan ennustaa riskivauvojen heikompia kielellisiä taitoja. Tulokset aivovasteiden ennustearvosta ovat tutkijan mielestä rohkaisevia kielellisten pulmien varhaisen tunnistamisen sekä tuki- ja kuntoutustoimien suunnittelun kannalta. Event-related potentials (ERPs) measuring feature and change detection were studied from newborns with and without familial risk for dyslexia. The possibility of using newborn ERPs to predict later language development was also investigated. Results from a feature detection paradigm (/ba/, /da/, /ga/; presented equiprobably with interstimulus interval, ISI, of 4–7 seconds) showed hemispheric group differences at 540–630 ms (latency identified by principal component analysis, PCA), where the responses to /ga/ were clearly more positive and prolonged in the right hemisphere of the at-risk group. This response pattern in the right hemisphere at birth was related to significantly poorer receptive language skills across both groups at the age of 2.5 years. Similar ERP pattern in the left hemisphere was associated with poorer verbal memory skills at the age of 5 years. In the change detection paradigm (standard /kaa/ and deviant /ka/; presented in an oddball paradigm with 425 ms ISI), the ERPs at 290–320 ms (latency identified by PCA) predicted later skills only in the at-risk group. Larger positive responses to the deviant stimuli (change detection) in the left hemisphere predicted better receptive language skills at 2.5 years and verbal memory skills at 3.5 years, whereas a similar pattern in the right hemisphere was associated with poorer verbal memory skills at 5 years. Larger positive responses to the standard stimuli (general responsiveness) in the left hemisphere were associated with poorer receptive language skills at 2.5 and 3.5 years and verbal memory skills at 5 years. These results indicate that ERPs can be used to predict later language development in children with and without familial risk for dyslexia
...
![showless](/themes/JYX2//images/showless.png)
![showmore](/themes/JYX2//images/showmore.png)
Julkaisija
Jyväskylän yliopistoISBN
951-39-1644-8ISSN Hae Julkaisufoorumista
0075-4625Metadata
Näytä kaikki kuvailutiedotKokoelmat
- Väitöskirjat [3515]
Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Early prediction of reading : phonological awareness and related language and cognitive skills in children with a familial risk for dyslexia
Puolakanaho, Anne (University of Jyväskylä, 2007)PsL Anne Puolakanaho selvitti väitöstutkimuksessaan, miten leikki-ikäisten 3 - 5-vuotiaiden lasten kielelliset ja kognitiiviset taidot ovat yhteydessä lukemisen virheettömyyteen ja sujuvuuteen kouluiässä. Puolakanaho tutki ... -
Brain responses to speech sounds in infants and children with and without familial risk for dyslexia
Lohvansuu, Kaisa (University of Jyväskylä, 2015)Dyslexia, a specific reading disability, runs in families. Therefore, the risk for a child to become dyslexic increases multifold if reading difficulties occur in the family. One risk factor for dyslexia is a deficit in ... -
Neural correlates of morphological processing and its development from pre-school to the first grade in children with and without familial risk for dyslexia
Louleli, Natalia; Hämäläinen, Jarmo A.; Nieminen, Lea; Parviainen, Tiina; Leppänen, Paavo H.T. (Elsevier, 2022)Previous studies have shown that the development of morphological awareness and reading skills are interlinked. However, most have focused on phonological awareness as a risk factor for dyslexia, although there is considerable ... -
Language development, literacy skills and predictive connections to reading in Finnish children with and without familial risk for dyslexia
Torppa, Minna; Lyytinen, Paula; Erskine, Jane; Eklund, Kenneth; Lyytinen, Heikki (Sage publications, 2010)Discriminative language markers and predictive links between early language and literacy skills were investigated retrospectively in the Jyväskylä Longitudinal Study of Dyslexia in which children at familial risk for ... -
Neural phoneme discrimination in variable speech in newborns : Associations with dyslexia risk and later language skills
Virtala, P.; Kujala, T.; Partanen, E.; Hämäläinen, J. A.; Winkler, I. (Elsevier BV, 2023)A crucial skill in infant language acquisition is learning of the native language phonemes. This requires the ability to group complex sounds into distinct auditory categories based on their shared features. Problems in ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.