Özet:

Studies were performed on 20 successful male/female and 20 unsuccessful male/female 12-15 –year-old students of primary school. EEG-UP records were taken in Fz and Cz regions.Classic oddball paradigm was performed as stimulation model. The latencies and amplitudes of P300 component of ERP were measured and statistically evaluated as a function of gender and school success with Student-t test. Neurophysichological assesment was conducted using Visual Aural Digit Span (VADS) test selected evaluated short term memory. P300 latency was significantly different only in male succesful and unsuccessful grups at Fz regions. P300 amplitude was significantly shorter in unsuccesful male and female students (Cz record region). There were no differences between gender in VADS test, but there was a significant correlation between school success and short term memory performances. P300 latency was prolonged, amplitude was decreased in unsuccessful males and females. There was a positive correlation between their cognitive function and their school performance. The male group showed reduced P300 amplitude and prolonged P300 latency. These results suggest that the development and the maturation of brain occur later in males than in females. Short term memory is not different in males and females but it is considerable at school success

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