RIGHT NEGLECT FOLLOWING RIGHT-HEMISPHERE DAMAGE

From a sample of 90 stroke cases showing visual inattention following right hemisphere brain damage, 17 cases were identified who showed mor e inattention on the right than the left side on some tests. Eight of these subjects had CT scan-confirmed unilateral right hemisphere damag e and one of these eight had MRI scan-confirmed unilateral right brain damage. A number of hypotheses are examined to explain this ''paradox ical'' right inattention. The most parsimonious proposes that right in attention is produced by an interaction of a compensatory left sided s canning strategy in association with a non-lateralised attentional los s.