Objective: To measure IQ and MQ of patients with cerebral vascular diseases (CVD) involving different cerebral lobes and basal ganglia areas. To provide useful data for clinical assessment of brain functions with respect to degree and range of IQ and MQ impairments. Methods: 60 cases of localized CVD were confirmed by clinical diagnosis and CT scan. The patients were evaluated by the WAIS-RC and WMS-RC after convalescence. Results: There were reliable differences between patients and normal controls ( P <0.001), indicating significant intelligence and memory impairments. More pronounced impairments were found in cases with frontal, temporal, occipital and thalamus lesions, but less so with parietal and basal ganglia lesions. Conclusion: The frontal, temporal, occipital lobes and the thalamus play a key and interactive role in the various cognitive processes underlying IQ and MQ.
