Event-related potentials study in children with borderline intellectual functioning.
BACKGROUND
Low general cognitive ability is a common cause for learning and academic difficulties. The present study was undertaken to objectively investigate the cognitive functioning of children having borderline intelligence using electrophysiological measures.


METHODS
The study was conducted on children having borderline intelligence (IQ: 70-85). The cognitive functioning of children was assessed using event-related potentials.


RESULTS
Significant prolongation of the latency of P200, N200, and P300 with no significant difference in the amplitudes was seen in the children having borderline intelligence as compared to controls.


CONCLUSIONS
Brain systems that are important for stimulus discrimination and using cognitive representation to guide cognition and behavior are impaired in children with borderline intelligence.
Department of Physiology, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi, India.
Neelam
N
Vaney
Department of Physiology, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi, India.
Farah
F
Khaliq
Department of Physiology, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi, India.
Yumnam
Y
Anjana
Borderline intelligence; P300; event-related potentials