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Paper Description


Menstrual phase influences gender differences in visual dependence: A study with a computerised Rod and Frame Test


Authors: Rima Abdul Razzaka, Jeffery Bagustb, Sharon Dochertyb, Zuheir Hasana, Yusra Irshadc & Ahoud Rabiahc
Abstract: Previous mechanical Rod and Frame Test (RFT) studies suggested gender and menstrual cycle effects on
visual vertical perception with evidence from other studies on spatial tests showing large gender effects in
their original form and a decreased gender difference effect on the computerised versions. We
investigated whether gender and menstrual cycle effects on visual dependence can be maintained on a
computerised version of the RFT (CRFT) in 30 males, 30 females in the follicular phase and 22 females
in the midluteal phase. No difference was found between the errors of the male and female groups in the
presence of an untilted frame (0°, Frame0°). With a tilted frame (Frame±18°) presentation, males and
females in the follicular phase had significantly smaller errors than females in the midluteal phase. These
results confirm findings of a male advantage on the RFT and also indicate that menstrual cycle phase
does affect gender differences in visual dependence on the CRFT; thus, caution with RFT results is
recommended when female subjects are involved.
Keywords: Computerised Rod and Frame Test (RFT); Gender effects; Menstrual cycle effects; Visual
vertical.
Numerous studies have supported gender differences
Published in: Journal of Cognitive Psychology, 2015 Vol. 27, No. 1, 80–88, http://dx.doi.org/10.1080/20445911.2014.976227;27(1):80–88,
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