Sensory, cognitive and motor assessment of children with poor academic performance: An auditory evoked potential study.
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Date
2010-07
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Abstract
The present study aims to evaluate the auditory sensory process
in the brainstem, thalamocortical and cortical areas by using auditory
evoked potentials [auditory brainstem response (ABR), mid latency response
(MLR) and slow vertex response (SVR)], cognitive functions by P300 and
motor response by reaction time in children with poor academic performance.
Thirty children between 6–12 years of age were selected as subjects on the
basis of poor academic school records. While thirty children with good
academic performance served as controls. The recordings were done using
a computerized evoked potential recorder by 10–20 electrode placement
system. There was no difference in the anthropometric parameters and IQ
of the two groups. There was a significant increase in latency of waves II,
III, IV and V, and Inter-peak latency I-V of ABR in poor performer females.
All the component waves of MLR and SVR showed increased latency in the
subjects but could not reach the level of significance. There was a significant
increase in latencies of P300 at Cz and Pz electrode positions with no
change in amplitude in poor performer females. The reaction time was also
increased in the poor performer females as compared to the controls. The
latencies of all the waves of ABR, P300 and reaction time are also increased
in male poor performers as compared to male controls but could not reach
the level of significance. The conduction of impulses is slower in pontine
and midbrain auditory pathway along with inefficient cortical processing of
task relevant stimuli and motor response in female children having poor
academic performance.
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Keywords
auditory brainstem response, slow vertex response (SVR), (ABR) mid latency response (MLR), P300, poor academic performance, reaction time
Citation
Khaliq Farah, Alam Kaushal Kumar, Vaney Neelam, Singh T B. Sensory, cognitive and motor assessment of children with poor academic performance: An auditory evoked potential study. Indian Journal of Physiology and Pharmacology. 2010 Jul-Sept; 54(3): 255-264.