Avowed, assessed, and familial handedness and differential hemispheric processing of brief sequential and non-sequential visual stimuli

Right-handers with no family history of left-handedness (RHFH-), right-handers with such history (RHFH+), and left-handers (LH) were tested on a lateralized letter masking task. Only the RHFH - group showed significant right visual field superiority on the masking task. The results would seem to reflect interhemispheric communication efficiency rather than which hemisphere is dominant for language expression.