Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Inverted EEG theta lateralization in dyslexic children during phonological processing.

C Spironelli1, B Penolazzi, C Vio

  • 1Department of General Psychology, University of Padova, Via Venezia 8, 35131 Padova, Italy.

Neuropsychologia
|August 1, 2006
PubMed
Summary

Dyslexic children show altered brain activity patterns, specifically in theta band (EEG) function, indicating a deficit in processing phonological information within verbal working memory.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Intelligence and psychopathy: a correlational study on insane female offenders.

Psychological medicine·2013
Same author

Unitary attention in callosal agenesis.

Cognitive neuropsychology·2010
Same author

Treatment of specific developmental reading disorders, derived from single- and dual-route models.

Journal of learning disabilities·2004
Same author

Imagery deficits in nonverbal learning disabilities.

Journal of learning disabilities·2004
Same author

Cortical plasticity of spatial stimulus-response associations: electrophysiological and behavioral evidence.

Neuroreport·2001
Same author

Sterol carrier protein 2 gene transfer changes lipid metabolism and enterohepatic sterol circulation in mice.

Gastroenterology·2000

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Cognitive Science

Background:

  • The phonological deficit hypothesis is a leading explanation for dyslexia.
  • Understanding the neural underpinnings of phonological processing in dyslexia is crucial.

Purpose of the Study:

  • To investigate language-related lateralization of the electroencephalogram (EEG) theta band in dyslexic children.
  • To analyze the temporal dynamics of word reading and encoding in verbal working memory.

Main Methods:

  • Utilized a word-pair visual presentation paradigm with Semantic and Phonological tasks.
  • Analyzed theta band amplitude during four phases of word elaboration.
  • Compared EEG theta band activity between dyslexic children and control subjects.

Related Experiment Videos

Main Results:

  • Control subjects exhibited efficient, task-specific left-hemisphere theta activation during phonological tasks.
  • Dyslexic children showed delayed theta peak activity and right-hemisphere dominance across tasks.
  • Alpha band analysis did not reveal similar lateralization patterns, highlighting theta's specific role.

Conclusions:

  • Dyslexic children have a deficit in recruiting left-hemisphere structures for phonological processing in verbal working memory.
  • Altered theta band asymmetry and temporal dynamics reflect dysfunctional phonological elaboration in dyslexia.