Most measures of cognitive function decline with age during adulthood. Research indicates that people with schizophrenia experience considerable cognitive deficits. These deficits appear to become more troublesome with increasing age, but this has been debated. The aim of this research was to better understand the age related cognitive deficits of Icelandic subjects with schizophrenia in comparison to healthy individuals. Cognition of individuals 18 to 64 years of age was evaluated with 10 neuropsychological tests. People with schizophrenia performed significantly worse on all tests, as expected, indicating widespread cognitive deficits compared to healthy individuals, independent of age. Furthermore, the results suggest that people with schizophrenia follow a similar age-related trajectory of cognitive decline as healthy individuals. Overall, we conclude that the cognitive difficulties often experienced by older people with schizophrenia are better explained by lower cognitive function at the time of diagnosis than by faster cognitive decline with increasing age.

中文翻译：

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精神分裂症，认知与衰老：认知缺陷以及考试成绩与衰老之间的关系。

在成年期，大多数认知功能的指标会随着年龄的增长而下降。研究表明，精神分裂症患者会出现相当大的认知缺陷。随着年龄的增长，这些缺陷似乎变得更加麻烦，但这已经引起了争论。这项研究的目的是与健康个体相比，更好地了解患有精神分裂症的冰岛受试者与年龄相关的认知缺陷。通过10项神经心理学测试评估18至64岁年龄段个体的认知。正如预期的那样，精神分裂症患者在所有检查中的表现均明显较差，表明与年龄独立的健康个体相比，认知缺陷普遍存在。此外，结果表明，精神分裂症患者与健康个体遵循相似的年龄相关性认知下降轨迹。总体，