Sex hormonal modulation of interhemispheric transfer time

Abstract

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Sex hormones affect language lateralisation but not cognitive control in normally cycling women

“…&%! provided evidence that estradiol may also modulate interhemispheric interaction and, in turn, lateralisation (Hausmann et al, 2013, Weis et al, 2008Weis et al, 2011;Hausmann et al, 2006;Holländer et al, 2005). In line with this hypothesis, the reduced REA found in the non- Further analysis of the absolute LQs indicated that the reduction in the DL bias was mainly underpinned by estradiol.…”

“…Hausmann et al, 2006) or estradiol alone (e.g. Hausmann, 2005;Holländer et al, 2005;Weis et al, 2008) that modulates the interhemispheric interaction between the left and right hemispheres (Hausmann et al, 2013;see Hausmann and Bayer, 2010 for a review).…”

Sex hormones modulate neurophysiological correlates of visual temporal attention

“…Our findings do however indicate that the menstrual cycle can affect the processing of rapid sequences in both hemispheres as reflected in the overall longer P1 latencies during the follicular phase. Latencies of early auditory (Tillman, 2010) and visual potentials (Hausmann et al, 2013) have been reported to vary during the menstrual cycle.…”

Estradiol-related variations in top-down and bottom-up processes of cerebral lateralization.

“…In turn, this would result in a 'decoupling' of the hemispheres by reducing corticocortical transmission and interhemispheric inhibition (Hausmann & Güntürkün, 2000). This model was later revised, in light of evidence that estradiol may also modulate interhemispheric interaction and, in turn, lateralisation (Hausmann et al, 2013;Weis et al, 2008;Weis et al, 2011;Hausmann et al, 2006;Holländer et al, 2005). In line with this hypothesis, Hodgetts et al (2015) argued that the reduced REA found in women with high estradiol levels during the non-forced and forced- Given that interhemispheric inhibition is a universal process that should affect lateralisation generally, it follows that high estradiol levels should also reduce lateralisation for tasks related to the right hemisphere.…”