Johansen-Berg H, Lloyd D M
Oxford Centre for Functional Magnetic Resonance Imaging of the Brain, John Radcliffe Hospital, Oxford, OX3 9DU, UK.
Front Biosci. 2000 Nov 1;5:D894-904. doi: 10.2741/A558.
In this chapter we review psychological and physiological experiments on selective attention to touch stimuli. We explore the role of selective attention in tactile target detection and search, determining those tasks that benefit from attention and those which can be effectively performed pre-attentively. We also try to determine the stage at which attentional selection occurs. We review electrophysiological and human brain imaging (PET, fMRI, MEG, SEP) studies to assess how early in the somatosensory processing pathway attentional modulation occurs. There is some evidence that the primary somatosensory cortex (S1) can show attentional effects. However, a number of studies have suggested that there is a hierarchy to attentional modulation in the somatosensory system, with the greatest effects being observed in secondary and association areas.
在本章中，我们回顾了关于对触觉刺激进行选择性注意的心理和生理实验。我们探讨了选择性注意在触觉目标检测和搜索中的作用，确定了哪些任务受益于注意，哪些任务可以在注意前有效地执行。我们还试图确定注意选择发生的阶段。我们回顾了电生理和人类脑成像（PET、fMRI、MEG、SEP）研究，以评估在体感处理通路中注意调制多早发生。有一些证据表明，初级体感皮层（S1）可以表现出注意效应。然而，许多研究表明，体感系统中的注意调制存在层级关系，在次级和联合区域观察到的效应最大。
