Gender Differences In Stability Research Articles

F116. Gender Differences in Stability of Brain Functional Connectivity

F116. Gender Differences in Stability of Brain Functional Connectivity

Gender differences in stability of the instantaneous patterns of body surface potentials during ventricular repolarisation.

Women have a higher risk of developing torsade de pointes under OT-prolonging conditions. The electrophysiological differences between the sexes that could account for this are largely unknown. The objective of the work was to evaluate gender differences in repolarisation potentials using a method that is independent of the specific electrical properties of the thorax. 1410 normal recordings from the Glasgow 12-lead ECG database and 52 normal ECG maps obtained separately in Milan were analysed. The average difference between 1 and the correlation coefficient of the instantaneous pattern at the peak of T with that at every other instant is called the early repolarisation deviation index (ERDI) for J-T peak and the late repolarisation deviation index (LRDI) for T peak-T end. In standard ECG recordings, the ERDI was 0.42 +/- 0.22 in females compared with 0.19 +/- 0.16 in males (p < 10(-6)). The LRDI was higher in males under the age of 50. In body surface maps, the ERDI was 0.32 +/- 0.21 in females against 0.16 +/- 0.17 in males (p < 0.01), and the LRDI was non-significantly higher in males. The pattern of instantaneous body surface potentials showed gender differences during repolarisation with a method that is independent of the electrical properties of the thorax.

Gender differences in children's reactions to success and failure with computers

This study examined an attributional style explanation for gender differences in computer use and attitudes. A total of 127 Grade 5 subjects filled out questionnaires assessing computer experience. Surprisingly, there were no gender differences in liking for computers. However, consistent with previous research, boys thought that they had more ability with computers, boys used computers more frequently, and more boys had computers at home. Subjects were then randomly assigned to use either a “failure” computer program, a “success” program, or no program. Results showed that boys provided unstable attributions for failure with the computer (e.g., bad disk, lack of effort) more often than girls did, whereas girls provided unstable attributions for success (e.g., easy program, effort) with the computer more often than boys did. Both boys and girls who made stable attributions for success or unstable attributions for failure were more enthusiastic about using computers in the future, indicating that gender differences in attitudes toward computer use can be explained by gender differences in attributions for performance. The data also suggest that gender differences in relaxation and expectations for improvement were due to gender differences in stability of attributions, frequency of previous computer use, and perceived competence with computers.