I suggest everyone read the following study.

I find fascinating as it describes in detail the fact that in split brain patients different hemispheres act Independently from each other the impacts of this finding.

To quote the article

Suppose the right brain sees a snowy scene, while the left-brain sees a chicken leg. The patient is given a multiple-choice test consisting of four pictures that might relate to the scene. One of the four alternatives is a shovel; another is a chicken.

Asked to point to a symbol corres­ponding to the image on the screen, each hand points to a different symbol. The right hand points to a chicken, because the pattern on the right side of the screen is a chicken leg. The left hand points to a shovel, because the right hemisphere sees only the snow scene.

To repeat: the left hemisphere, which controls speech, sees only the chicken leg. If asked why the left hand (controlled by the right brain) pointed to a shovel, the talking hemisphere does not know! But it quickly makes up an answer, such as, "Well, you have to clean up after those chickens."

This is an example of a rational­ization: a rational but false explanation. It occurs smoothly and quickly, suggesting a well-developed talent in humans.

Perhaps we frequently have no idea why a neural event occurs, for example, why a thought or feeling occurs to us. If we have to explain our behavior, we make up something that sounds reasonable.

What form of "instant rationalization" occurs in split-brain patients? In a 1998 30 year review article, Gazzaniga affirmed the tendency of the left hemisphere to confabulate or rationalize. The left brain (the talker) quickly made up reasons for unexplained activity controlled by the right hemi­sphere, in all the split-brain patients he studied.

This rationalization of a primoridal instinct is very similar to that of women rationalizing their mating preferences where they say one thing but it is clear there is some instinctual urge to do something else we that hypergamy.

To me it appears that the disconnect between what women say and how they act is simply biological.

Thoughts?