TY - JOUR PY - 1992// TI - Impulsivity, risk-taking, and the ability to synthesize fragmented information after frontal lobectomy JO - Neuropsychologia A1 - Miller, Lisa A. SP - 69 EP - 79 VL - 30 IS - 1 N2 - Patients with unilateral frontal- or temporal-lobe excisions and control subjects performed a cognitive risk-taking task in which target items (line-drawings or words) had to be guessed on the basis of partial-information clues. For each item, subjects chose to guess with either one, two, three, or all four clues, for a possible reward of 30, 20, 10, or 5 points, respectively. Two clue-presentation conditions were used to allow the differentiation of risk-taking from impulsivity. Whereas no group obtained high risk-taking scores, patients with frontal-lobe lesions demonstrated impulsive behaviour when manual responses were required. Only the left frontal-lobe group was impaired at solving the clues.

Language: en

LA - en SN - 0028-3932 UR - http://dx.doi.org/ ID - ref1 ER -