CAPTURE ERRORS AND SEQUENCING AFTER FRONTAL BRAIN-LESIONS

This study addresses the effect of strong routine associations (captur e errors) in hindering the control of on-line serial or sequencing tas ks. Patients with focal frontal lobe lesions were significantly inferi or to normal control subjects and patients with posterior brain lesion s, when conditions that may lead to capture errors were present. The r esults suggest that the primary dysfunction exhibited by patients with frontal lobe lesions on capture error tasks may lie not in the diseng agement from the invalid associations but in focusing attention to alt ernative strategies of response.