Lobel D S, Swanda R M, Losonczy M F
Department of Psychology, FDR Veterans Affairs Hospital, Montrose, New York 10548.
Percept Mot Skills. 1994 Aug;79(1 Pt 2):699-702. doi: 10.2466/pms.1994.79.1.699.
Numerous studies have shown impaired verbal functioning in schizophrenic patients as compared with normals. The verbal deficits are generally attributed to damage of the left cerebral hemisphere. This attribution is based on literature which suggests that verbal processing is primarily mediated by the left hemisphere in right-handed humans. This study explored left-hemispheric integrity directly by assessing sustained attention in both the left and right hemispheres of 40 schizophrenic patients with the Weintraub Cancellation Tasks. Patients made significantly more errors of omission on the right visual field than on the left. These results are consistent with cognitive research in schizophrenia by demonstrating selective left-hemispheric impairment relative to right-hemispheric functioning.
大量研究表明，与正常人相比，精神分裂症患者存在言语功能受损的情况。言语缺陷通常归因于左脑半球的损伤。这一归因基于相关文献，这些文献表明，在右利手人群中，言语处理主要由左半球介导。本研究通过使用温特劳布消去任务评估40名精神分裂症患者左右半球的持续注意力，直接探究了左半球的完整性。患者在右视野的遗漏错误显著多于左视野。这些结果通过证明相对于右半球功能而言存在选择性左半球损伤，与精神分裂症的认知研究结果一致。
