13.12.2012 Views

Re:TheAshLad - Sandbooks

Re:TheAshLad - Sandbooks

Re:TheAshLad - Sandbooks

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

192<br />

righthanded childrenit can be expected by probability alone that. more<br />

right handed children with lefthemisphere damage would switch.<br />

righthemisphere dominance than would switch in he reverse.<br />

direction.That such switching can take placehowevercannot be used as.<br />

grounds for predicting cognitive deficits or differences in cerebral.<br />

organization in the general population of lefthanders.. High estrogen<br />

levels are associated with relatively depressed. spatial ability as well as<br />

enhanced articulatory and motor capability.. Kimura showed that men s<br />

spatial scores fluctuate with testosterone. levelsmen with lower<br />

testosterone levels get the highest scores.So. there appears to be an<br />

optimal level of testosteroneand increasing. the level is actually<br />

detrimental to cognitive performance.. Furthermoremen with lower<br />

average levels of testosterone do better. on both spatial tests and on<br />

mathematical reasoning tests than do. those with higher levels.A<br />

reasonable question is whether there is. also a relation be tween<br />

testosterone level and spatial ability in. women.There is.Women with<br />

higher levels do betteragain suggesting. that some optimal hormone<br />

level benefits at least some cognitive. activities.. As already<br />

mentionedthe difference in strategies used by men and. women to solve<br />

problems may be at least partly responsible for the. observed sex differ<br />

ences in behavior.Geneticmaturationaland. environmental factors may<br />

pre dispose men and women to prefer. different modes of cognitive<br />

analysis. Women solve problems primarily. by using a verbal modefor<br />

example. Because this cognitive mode is. less efficient in solving<br />

spatial problemswomen exhibit an apparent. deficiton average.By the<br />

same logicwomen should do better than men. at primarily verbal<br />

taskson average.This proposition has yet to be. thoroughly<br />

investigated.. At least six significant behavioral differences are sex.<br />

relatedverbal ability visuospatial analysismathematical.<br />

abilityperceptionmotor skillsand aggression.Although the precise.<br />

causes of cognitive sexrelated differences are unknownbiology likely.<br />

plays a part.Consider the following dataRichard Harshman and his.<br />

associatesin a very ambitious study of the interaction of sex and.<br />

102

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!