* a comprehensive history of early research on cerebral laterality and hemispheric communication, including work by Pavlov;
* a critical analysis of techniques and methologies to study hemispheric communication;
* research on anatomical substrates which may underly functional differences between hemispheres and hemispheric communication;
* implications of handedness for hemispheric communication;
* research on individual differences in hemispheric function;
* comprehensive research on sex and handedness from physiological, anatomical, and functional perspectives; and
* attentional differences in hemispheric function.