Unknown

Dataset Information

0

Hemispheric specialization for visual words is shaped by attention to sublexical units during initial learning.


ABSTRACT: Selective attention to grapheme-phoneme mappings during learning can impact the circuitry subsequently recruited during reading. Here we trained literate adults to read two novel scripts of glyph words containing embedded letters under different instructions. For one script, learners linked each embedded letter to its corresponding sound within the word (grapheme-phoneme focus); for the other, decoding was prevented so entire words had to be memorized. Post-training, ERPs were recorded during a reading task on the trained words within each condition and on untrained but decodable (transfer) words. Within this condition, reaction-time patterns suggested both trained and transfer words were accessed via sublexical units, yet a left-lateralized, late ERP response showed an enhanced left lateralization for transfer words relative to trained words, potentially reflecting effortful decoding. Collectively, these findings show that selective attention to grapheme-phoneme mappings during learning drives the lateralization of circuitry that supports later word recognition. This study thus provides a model example of how different instructional approaches to the same material may impact changes in brain circuitry.

SUBMITTER: Yoncheva YN 

PROVIDER: S-EPMC4538939 | biostudies-literature | 2015 Jun-Jul

REPOSITORIES: biostudies-literature

altmetric image

Publications

Hemispheric specialization for visual words is shaped by attention to sublexical units during initial learning.

Yoncheva Yuliya N YN   Wise Jessica J   McCandliss Bruce B  

Brain and language 20150516


Selective attention to grapheme-phoneme mappings during learning can impact the circuitry subsequently recruited during reading. Here we trained literate adults to read two novel scripts of glyph words containing embedded letters under different instructions. For one script, learners linked each embedded letter to its corresponding sound within the word (grapheme-phoneme focus); for the other, decoding was prevented so entire words had to be memorized. Post-training, ERPs were recorded during a  ...[more]

Similar Datasets

| S-EPMC4681321 | biostudies-literature
| S-EPMC6380202 | biostudies-literature
| S-EPMC4414015 | biostudies-literature
| S-EPMC7274423 | biostudies-literature
| S-EPMC3958410 | biostudies-literature
| S-EPMC4630217 | biostudies-literature
| S-EPMC6870780 | biostudies-literature
| S-EPMC5563700 | biostudies-other
| S-EPMC6449798 | biostudies-literature
| S-EPMC6121144 | biostudies-literature