Когнитивная психология и эмоции
Субъективные заметки постдока-психолога
Записи в рубрике «секс»

К пятничному вечеру: влияние алкоголя на эрекцию

22 октября 2010, юмор Метки: ,

Although men often have sex when intoxicated, basic questions remain about how alcohol affects erection. It may depend on whether blood alcohol level is ascending or descending and whether the situation calls for maximizing or suppressing erection. OBJECTIVE: To evaluate whether descending intoxication affects erection when men are instructed to maximize or suppress arousal. METHOD: Seventy-eight heterosexual men were randomized to intoxication (descending from .08% vs. no alcohol) and arousal instruction (maximize vs. suppress) conditions. Response to erotica was examined using penile plethysmography. RESULTS: Compared to similarly instructed sober men, intoxicated men instructed to maximize exhibited less erection yet reported greater effort to maximize. Interestingly, intoxicated men instructed to suppress exhibited more erection than those instructed to maximize. In general, however, observed effects were modest. CONCLUSIONS: Findings suggest there is no simple answer regarding how alcohol affects sexual arousal. Descending intoxication, depending on context, appears to affect erection capacity and control.

George, W. H., Cue Davis, K., Schraufnagel, T. J., Norris, J., Heiman, J. R., Schacht, R. L., Stoner, S. A., et al. (2008). Later that night: descending alcohol intoxication and men’s sexual arousal., 2(1), 76-86. http://www.ncbi.nlm.nih.gov/pubmed/19477772

Вывод: если вы пьяны, попытайтесь подавить животные позывы, и вот тогда вам будет счастье =)

Про размеры

15 мая 2010, наука Метки: , , , , ,

Для мальчиков — большой пенис как причина прямохождения:

This unique adaptation is thought to have been selected through female mate choice, and by the time Homo erectus arrived on the scene, the hominid penis was significantly longer, fatter and more bendy than our ape cousins’. It has even been theorised that bipedalism evolved in humans to allow the fashionably new, larger, flexible penis to be displayed to discerning females.

http://www.guardian.co.uk/science/2010/may/06/women-penis-size

И для девочек — большая грудь как милое украшение:

So it has been widely theorised that the plump buttock and bosom of modern women are sexual ornaments, selected for by ancestral males. Seen from a distance the adult female form, either from behind or from the front, can be recognised as distinct from the male of the species. An hourglass figure, plus youthfulness, would have attracted male hominids looking for mating opportunity.

http://www.guardian.co.uk/science/2010/may/14/breast-size-evolution

Хотя, должен заметить, что в последней статье тема размера определенно не раскрыта.