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Patients with lesions in rostral prefrontal cortex (PFC) often experience problems in everyday-life situations requiring multitasking. A key cognitive component that is critical in multitasking situations is prospective memory, defined as the ability to carry out an intended action after a delay period filled with unrelated activity. The few functional imaging studies investigating prospective memory...
Patients who show the ''strategy application disorder'' can show deficits restricted to situations requiring multitasking, but the precise neuroanatomical and cognitive correlates of this problem have been rarely investigated. In this study, 60 people with circumscribed cerebral lesions and 60 age- and IQ-matched controls were given a multitasking procedure which allowed consideration of the relative...
We report the case of a patient, C.B., with a calculation impairment. His performance on simple division problems was severely impaired while his performance on simple and complex addition, subtraction and multiplication problems was largely spared. The patient was also found to be impaired in solving simple arithmetical problems such as Nx? = M. The implications of these findings for the organization...
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