Training-related changes in early visual processing of functionally illiterate adults : evidence from event-related brain potentials

Faculty/Professorship: Experimental Psychology: Cognition and Emotion  
Author(s): Boltzmann, Melanie; Rüsseler, Jascha  
Title of the Journal: BMC neuroscience
ISSN: 1471-2202
Publisher Information: London : BioMed Central
Year of publication: 2013
Volume: 14
Issue: 154
Pages: 1-14
Language(s): English
Licence: Creative Commons - CC BY - Attribution 3.0 International 
DOI: 10.1186/1471-2202-14-154
Event-related brain potentials (ERPs) were used to investigate training-related changes in fast visual word recognition of functionally illiterate adults. Analyses focused on the left-lateralized occipito-temporal N170, which represents the earliest processing of visual word forms. Event-related brain potentials were recorded from 20 functional illiterates receiving intensive literacy training for adults, 10 functional illiterates not participating in the training and 14 regular readers while they read words, pseudowords or viewed symbol strings. Subjects were required to press a button whenever a stimulus was immediately repeated.
Attending intensive literacy training was associated with improvements in reading and writing skills and with an increase of the word-related N170 amplitude. For untrained functional illiterates and regular readers no changes in literacy skills or N170 amplitude were observed.
Results of the present study suggest that the word-related N170 can still be modulated in adulthood as a result of the improvements in literacy skills.
Keywords: Event-related brain potentials (ERPs), word-related N170
Open Access Journal: Ja
Type: Article
Year of publication: 3. July 2014
Project: Open-Access-Publikationsfonds 2012-2020