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000163463 037__ $$aDZNE-2022-00223
000163463 041__ $$aEnglish
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000163463 1001_ $$aSammons, Rosanna P$$b0
000163463 245__ $$aLocal Microcircuitry of PaS Shows Distinct and Common Features of Excitatory and Inhibitory Connectivity.
000163463 260__ $$aOxford$$bOxford Univ. Press$$c2021
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000163463 520__ $$aThe parasubiculum (PaS) is located within the parahippocampal region, where it is thought to be involved in the processing of spatial navigational information. It contains a number of functionally specialized neuron types including grid cells, head direction cells, and border cells; and provides input into layer 2 of the medial entorhinal cortex where grid cells are abundantly located. The local circuitry within the PaS remains so far undefined but may provide clues as to the emergence of spatially tuned firing properties of neurons in this region. We used simultaneous patch-clamp recordings to determine the connectivity rates between the 3 major groups of neurons found in the PaS. We find high rates of interconnectivity between the pyramidal class and interneurons, as well as features of pyramid-to-pyramid interactions indicative of a nonrandom network. The microcircuit that we uncover shares both similarities and divergences to those from other parahippocampal regions also involved in spatial navigation.
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000163463 650_7 $$2Other$$aPaS
000163463 650_7 $$2Other$$acircuits
000163463 650_7 $$2Other$$aexcitatory
000163463 650_7 $$2Other$$ainhibitory
000163463 650_7 $$2Other$$aspatial navigation
000163463 650_7 $$2Other$$asynaptic connectivity
000163463 650_2 $$2MeSH$$aAction Potentials: physiology
000163463 650_2 $$2MeSH$$aEntorhinal Cortex: physiology
000163463 650_2 $$2MeSH$$aInterneurons: physiology
000163463 650_2 $$2MeSH$$aNeurons: physiology
000163463 650_2 $$2MeSH$$aParahippocampal Gyrus: physiology
000163463 650_2 $$2MeSH$$aSpatial Navigation: physiology
000163463 7001_ $$aTzilivaki, Alexandra$$b1
000163463 7001_ $$0P:(DE-2719)2810725$$aSchmitz, Dietmar$$b2$$eLast author$$udzne
000163463 773__ $$0PERI:(DE-600)1483485-6$$a10.1093/cercor/bhab195$$gVol. 32, no. 1$$n1$$p76-92$$tCerebral cortex$$v32$$x1460-2199$$y2021
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