I have not noticed a difference for myself either but then I have trained in the martial arts and I also shoot so those abilities have been flexed over a long period of time.
You may find this journal article interesting:
Estrogen and Memory in a Transsexual Population
Clare Miles,*,1 Richard Green,† Geoff Sanders,‡
and Melissa Hines*
*City University, London, United Kingdom; †Gender Identity Clinic, Charing Cross
Hospital, London, United Kingdom; and ‡London Guildhall University, United Kingdom
Received February 9, 1998; revised June 29, 1998; accepted August 12, 1998
The association between administered estrogen and
performance on verbal memory and other cognitive
tasks was examined. Male-to-female transsexuals undergoing
estrogen treatment for sex reassignment (n 5
29) scored higher on Paired Associate Learning (PAL)
compared to a similar transsexual control group, awaiting
estrogen treatment (n 5 30) (P < 0.05). No differences
between groups receiving and not receiving estrogen
were detected on a control memory task (Digit
Span) or on other cognitive tasks including Mental Rotations
and Controlled Associations. There were no
group differences in age. Group differences in mood or
in general intellectual ability also did not explain the
findings. Results suggest a specific influence of estrogen
in men on verbal memory tasks, similar to that seen
in prior studies of women. They are discussed in terms
of differential processing demands of the two memory
tasks and possible differences between estrogenic influences
on Mental Rotations and Controlled Associations
in men versus women. © 1998 Academic Press
[..snip..]
In summary, our results suggest that estrogen treatment
in male-to-female transsexuals improves performance
on a verbal memory task that shows a sex
difference (PAL), but not on a verbal memory task that
does not (Digit Span). These results are similar to
those reported previously for estrogenic influences on
memory in women and suggest that the proposed
ameliorating influences of estrogen on memory disorder
in women may apply to men as well. In contrast to
results for memory, estrogen did not affect performance
on other cognitive measures, including two
that show sex differences (Mental Rotations and Controlled
Associations) and one that does not (Vocabulary).
Additional research is needed to determine why
prior findings on women suggesting that estrogen
impairs performance on Mental Rotations and improves
performance on Controlled Associations were
not supported in our sample. One possibility is that
estrogen has different effects on these abilities in men
versus women.
