Distributed neural networks of tactile working memory

作者：Wang, Liping^*; Bodner, Mark; Zhou, Yong Di

来源：Journal of Physiology (Paris), 2013, 107(6): 452-458.

DOI：10.1016/j.jphysparis.2013.06.001

• Working memory
• Tactile
• Somatosensory
• Monkey
• Single unit recording

Microelectrode recordings of cortical activity in primates performing working memory tasks reveal some cortical neurons exhibiting sustained or graded persistent elevations in firing rate during the period in which sensory information is actively maintained in short-term memory. These neurons are called "memory cells". Imaging and transcranial magnetic stimulation studies indicate that memory cells may arise from distributed cortical networks. Depending on the sensory modality of the memorandum in working memory tasks, neurons exhibiting memory-correlated patterns of firing have been detected in different association cortices including prefrontal cortex, and primary sensory cortices as well.
Here we elaborate on neurophysiological experiments that lead to our understanding of the neuro-mechanisms of working memory, and mainly discuss findings on widely distributed cortical networks involved in tactile working memory.

• 出版日期2013-12
• 单位华东师范大学