ABSTRACT
If one examines the literature on cerebral specialization, it is evident that most people consider handedness to be a critical variable. However, the relationship between handedness and cerebral specialization is not clearly understood. Furthermore, much of the experimental research is based on samples of right-handed undergraduates: in the truly compulsive, in right-handed males without a familial history of sinistrality. Even when supposed “left-handers” are the object of investigation, the actual classification is often one of right-handed versus non-right-handed. In the rare event that handedness is measured and different categories of handedness are employed, the specific measures vary from study to study. We argue that there are theoretical assumptions being made in all of these habits, and that these assumptions may not be valid.
