Δευτέρα 21 Νοεμβρίου 2016

OBJECTIVE ASSESSMENT OF PHYSIOLOGIC AGEING CHANGES BY PATTERN REVERSAL VISUAL EVOKED POTENTIALS

2016-11-21T23-12-26Z
Source: International Journal of Current Research and Review
Sangeeta Gupta, Gaurav Gupta.
Background: Impairment of visual information processing is one of the profound physiologic effects of ageing. Visual evoked potentials can record electrophysiological alterations in the visual pathways that can occur due to ageing and the nature of the impact in the older adults can be evaluated. Rapidly increasing size of the older population further emphasizes the acquisition of the data for this proportion of population optimizing the clinical evaluation in this group. Methods: Pattern-reversal visual evoked potentials (PRVEP) were recorded in 120 healthy subjects in the age-group of 20-80 years (60 males and 60 females). Mean P100 latencies and N75-P100 amplitudes were compared in different age-groups by one way ANOVA. Correlations of latencies and amplitudes with age were performed using Pearson correlation coefficient. Gender differences were studied by unpaired t test. P value


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