PMID- 10619669
OWN - NLM
STAT- MEDLINE
DCOM- 20000119
LR  - 20190718
IS  - 0959-4965 (Print)
IS  - 0959-4965 (Linking)
VI  - 10
IP  - 17
DP  - 1999 Nov 26
TI  - Attenuated hemispheric lateralization in dyslexia: evidence of a visual 
      processing deficit.
PG  - 3697-701
AB  - There is controversial evidence that deficits in the processing of low contrast 
      and low spatial frequency stimuli are of importance in the pathogenesis of 
      dyslexia. Fifteen adult dyslexics and 19 controls were examined using visual 
      evoked potentials (VEP) at varying spatial frequencies (2 and 11.33 cpd) and 
      contrasts (0.2, 0.4, 0.6, 0.8). Our results show that the amplitude of VEPs 
      following different spatial frequencies and contrasts did not differentiate 
      between dyslexics and controls. Further, we found significantly higher amplitudes 
      of the P1 and P2 over the right occipital cortex. For the P2, this hemispheric 
      asymmetry was not found in the dyslexic group suggesting a specific low level 
      visual processing deficit in the right occipital region in dyslexia.
FAU - Schulte-Korne, G
AU  - Schulte-Korne G
AD  - Department of Child and Adolescent Psychiatry and Psychotherapy, 
      Philipps-University Marburg, Germany.
FAU - Bartling, J
AU  - Bartling J
FAU - Deimel, W
AU  - Deimel W
FAU - Remschmidt, H
AU  - Remschmidt H
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Neuroreport
JT  - Neuroreport
JID - 9100935
SB  - IM
MH  - Adult
MH  - Analysis of Variance
MH  - *Brain Mapping
MH  - Contrast Sensitivity/physiology
MH  - Dyslexia/*physiopathology
MH  - Electrodes
MH  - Evoked Potentials, Visual/*physiology
MH  - Female
MH  - Functional Laterality/*physiology
MH  - Humans
MH  - Male
MH  - Occipital Lobe/*physiopathology
MH  - Visual Perception/*physiology
EDAT- 2000/01/05 00:00
MHDA- 2000/01/05 00:01
CRDT- 2000/01/05 00:00
PHST- 2000/01/05 00:00 [pubmed]
PHST- 2000/01/05 00:01 [medline]
PHST- 2000/01/05 00:00 [entrez]
AID - 10.1097/00001756-199911260-00043 [doi]
PST - ppublish
SO  - Neuroreport. 1999 Nov 26;10(17):3697-701. doi: 10.1097/00001756-199911260-00043.