Mapping of semantic, phonological, and orthographic verbal working memory in normal adults with functional magnetic resonance imaging

被引:83
作者
Crosson, B
Rao, SM
Woodley, SJ
Rosen, AC
Bobholz, JA
Mayer, A
Cunningham, JM
Hammeke, TA
Fuller, SA
Binder, JR
Cox, RW
Stein, EA
机构
[1] Univ Florida, Hlth Sci Ctr, Dept Clin & Hlth Psychol, Gainesville, FL 32610 USA
[2] Univ Florida, Inst Brain, Gainesville, FL 32610 USA
[3] Med Coll Wisconsin, Dept Neurol, Sect Neuropsychol, Milwaukee, WI 53226 USA
[4] Med Coll Wisconsin, Dept Psychiat & Behav Med, Milwaukee, WI 53226 USA
[5] Med Coll Wisconsin, Dept Neurol, Milwaukee, WI 53226 USA
[6] Med Coll Wisconsin, Biophys Res Inst, Milwaukee, WI 53226 USA
关键词
D O I
10.1037/0894-4105.13.2.171
中图分类号
B849 [应用心理学];
学科分类号
040203 ;
摘要
Twelve neurologically normal participants (4 men and 8 women) performed semantic, phonological, and orthographic working memory tasks and a control task during functional magnetic resonance imaging. Divergent regions of the posterior left hemisphere used for decoding and storage of information emerged in each working memory versus control task comparison. These regions were consistent with previous literature on processing mechanisms for semantic, phonological, and orthographic information. Further, working memory Versus control task differences extended into the left frontal lobe, including premotor cortex, and even into subcortical structures. Findings were consistent with R. C. Martin and C. Romani's (1994) contention that different forms of verbal working memory exist and further suggest that a reconceptualization of premotor cortex functions is needed.
引用
收藏
页码:171 / 187
页数:17
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