期刊
NEUROSCIENCE LETTERS
卷 343, 期 1, 页码 53-56出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/S0304-3940(03)00331-8
关键词
hippocampus-prefrontal cortex pathway; gamma-band; oscillation; in vivo; learning and memory
We previously reported a difference in short-term synaptic plasticity between the rat posterior dorsal CA1 (pdCA1)-prefrontal cortex (PFC) and ventral CA1 (vCA1)-PFC pathways. Here, to determine the effects of hippocampal train stimulation on the local field potential in the medial PFC, we recorded the PFC field potential with brief 250-Hz train stimulation (1, 3, 5, 7, and 9 pulses) of pdCA1 or vCA1 in anesthetized rats. Analysis of the gamma-band (40-100 Hz) power revealed stimulation-evoked gamma oscillation in the pdCA1-PFC, but not in the vCA1-PFC. These results indicate that these pathways have different responses to train stimulation. The function of the pdCA1-PFC may differ from that of the vCA1-PFC, a well-known hippocampus-PFC pathway. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved.
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