Cortical responses of infants with and without a genetic risk for dyslexia: II. Group effects

Neuroreport. 1999 Apr 6;10(5):969-73. doi: 10.1097/00001756-199904060-00014.

Abstract

Infants born to families with a background of developmental dyslexia have an increased risk of becoming dyslexic. In our previous study no major group or stimulus effects in the event-related potentials (ERPs) of at-risk and control infants were found until the age of 6 months. However, in the current study, when we made the stimulus presentation rate slower, the ERPs to the short deviant /ka/ were different from those to the long standard /kaa/ stimulus already in newborns. In addition, clear group differences in the ERPs were found. The results demonstrate that infants born with a high familial risk for dyslexia process speech/auditory stimulus durations differently from control infants at birth.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acoustic Stimulation / methods
  • Cerebral Cortex / physiopathology
  • Dyslexia / genetics*
  • Evoked Potentials, Somatosensory / physiology
  • Humans
  • Infant
  • Infant, Newborn
  • Phonetics
  • Reference Values
  • Risk Factors
  • Time Factors