PMID- 20509326
OWN - NLM
STAT- MEDLINE
DCOM- 20100616
LR  - 20191210
IS  - 0019-5499 (Print)
IS  - 0019-5499 (Linking)
VI  - 53
IP  - 4
DP  - 2009 Oct-Dec
TI  - Visual evoked potential study in slow learners.
PG  - 341-6
AB  - Slow learners are individuals with low achievement and comparably low IQ scores. 
      It may be a symptom reflecting a larger underlying problem in them. Sensory 
      neural processing of visual information can be one of the contributory factors 
      for their underachievement. The present study was undertaken to examine the 
      integrity and function of visual pathway by means of Visual Evoked Potential 
      (VEP). Pattern reversal VEP was performed on seventeen slow learners. Fifteen age 
      and sex matched children with good school performance and normal IQ were taken as 
      controls. There was significant prolongation of N75 component of VEP in slow 
      learners. The latencies of P100 and N145 were also increased but could not reach 
      the level of significance. Our findings are suggestive of the presence of a 
      weaker VEP response in slow learners indicative of a deficit early in the visual 
      processing. There is some abnormality in the geniculate afferents to V1 which is 
      consistent with a defect in the magnocellular pathway at the level of Visual Area 
      1 or earlier.
FAU - Khaliq, Farah
AU  - Khaliq F
AD  - Department of Physiology, University College of Medical Sciences & Guru Teg 
      Bahadur Hospital, Dilshad Garden, Delhi - 110 095. farahphysio@yahoo.com
FAU - Anjana, Yumnam
AU  - Anjana Y
FAU - Vaney, Neelam
AU  - Vaney N
LA  - eng
PT  - Journal Article
PL  - India
TA  - Indian J Physiol Pharmacol
JT  - Indian journal of physiology and pharmacology
JID - 0374707
SB  - IM
MH  - Child
MH  - Developmental Disabilities/physiopathology
MH  - Electroencephalography
MH  - Evoked Potentials, Visual/*physiology
MH  - Female
MH  - Humans
MH  - Intellectual Disability/physiopathology
MH  - Intelligence Tests
MH  - Learning Disabilities/*physiopathology
MH  - Male
MH  - Photic Stimulation
MH  - Schools
MH  - Vision Disorders/complications
MH  - Visual Pathways/physiopathology
MH  - Visual Perception/physiology
EDAT- 2010/06/01 06:00
MHDA- 2010/06/17 06:00
CRDT- 2010/06/01 06:00
PHST- 2010/06/01 06:00 [entrez]
PHST- 2010/06/01 06:00 [pubmed]
PHST- 2010/06/17 06:00 [medline]
PST - ppublish
SO  - Indian J Physiol Pharmacol. 2009 Oct-Dec;53(4):341-6.