摘要
额叶在大脑半球中占有很大比重(1/3),组成大脑的前部,是大脑发育过程中最后发育的组织。至今,对额叶功能的研究,意见尚有分歧。认为额叶与人的高级整合功能有关,Jefferson 反对高级机能定位在额叶区。不少作者对额叶健忘症进行了研究,认为额叶肿瘤患者出现的记忆障碍,具有非特殊通道性质,影响整个记忆活动;Clark 等认为额叶病变造成患者缺乏意识指向性,不能按指导语进行回答,不能按计划组织安排动作顺序,以完成有目的的行为。
The purpose of this work is to study the characteristics of short-term memory impairment and consciousdirectivity in patients with frontal lobetumor and to analyse the relationshipbetween memory and brain-structure.The subjects were 18 patients withfrontal or temporal lobe tumor,9 maleand 9 female,19-45 years of age.Acontrol group of 18 normal persons alsotook the memory tests.The memory tests consist of itemson verbal and non-verbal memory,andtests of conscious directivity were alsoadministered.The results show:①Patients with right frontal tumorshow significant short memory impair-ment,especially on non-verbal tests.SDTanalysis suggests that the recognition ofhuman face sketch suffers even moreheavily.②Some patients with frontal lobetumor have poor concious directivity.They are not able to react according to Instruction.They sometimes act purpo-selessly.In serious cases there existintelligent and emotional disturbances.③The short-term memory impair-ment diverses in patients with frontallobe tumo;individual difference of them in this respect is more than that in patients with temporal lobe tumor.
