In the third edition of her popular text, Sex Differences in Cognitive Abilities, Diane Halpern
tackles fundamental questions about the meaning of sex differences in cognition and why …

Recent studies have described neuromaturation and cognitive development across the
lifespan, yet few neuroimaging studies have investigated task-related alterations in brain …

Despite the ancestral evidence of an asymmetry in motor predominance, going through the
inspiring discoveries of Broca and Wernicke on the localization of language processing …

The principle of symmetry-asymmetry is widely presented in the structural and functional
organization of the nonliving and living nature. One of the most complex manifestations of …

PURPOSE: We evaluated the association between left-handedness (LH) and age,
education, cigarette smoking, alcohol consumption, and disease status in a case-control …

Since the first cave discoveries in Germany's Neander Valley, we have been fascinated by
these thick-browned, powerful creatures. Who were they and where did they go? A …

Hand use varies according to which brain hemisphere is dominant. Early androgen
exposure causes right hemisphere dominance. This study is aimed at comparing the testes …

Background Prenatal sex hormones may not exclusively determine effects of hand
preference on digit ratios. Genetic determination is an alternative possibility. Aim To study …

We have studied the capability of the mouse thymus for asymmetrical formation.
Concanavalin A (Con A)-stimulated proliferation of thymocytes from the right and left lobes of …

A total of 1985 women aged between 55 and 65 were distributed into two groups (145 left-
handers and 1840 right-handers). They were asked to complete a questionnaire on the …