New and distinct hippocampal place codes are generated in a new environment during septal inactivation.
New and distinct hippocampal place codes are generated in a new environment during septal inactivation.
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DOI:
10.1016/j.neuron.2014.04.013
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发表时间:
2014-05-21
期刊:
影响因子:
16.2
通讯作者:
Leutgeb S
中科院分区:
文献类型:
--
作者:
Brandon MP;Koenig J;Leutgeb JK;Leutgeb S
The hippocampus generates distinct neural codes to disambiguate similar experiences, a process thought to underlie episodic memory function. Entorhinal grid cells provide a prominent spatial signal to hippocampus, and changes in their firing pattern could thus generate a distinct spatial code in each context. We examined whether we would preclude the emergence of new spatial representations in a novel environment during muscimol inactivation of the medial septal area, a manipulation known to disrupt theta oscillations and grid cell firing. We found that new, highly distinct configurations of place fields emerged immediately and remained stable during the septal inactivation. The new place code persisted when theta oscillations had recovered. Theta rhythmicity and feedforward input from grid cell networks were thus not required to generate new spatial representations in the hippocampus.
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影响因子:
25
作者:
Bonnevie, Tora;Dunn, Benjamin;Moser, May-Britt
通讯作者:
Moser, May-Britt
影响因子:
56.9
作者:
Koenig, Julie;Linder, Ashley N.;Leutgeb, Stefan
通讯作者:
Leutgeb, Stefan
影响因子:
16.2
作者:
Bjerknes, Tale L.;Moser, Edvard I.;Moser, May-Britt
通讯作者:
Moser, May-Britt
DOI:
10.1523/jneurosci.1319-09.2009
发表时间:
2009-08-05
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Lever C;Burton S;Jeewajee A;O'Keefe J;Burgess N
通讯作者:
Burgess N
影响因子:
56.9
作者:
Langston, Rosamund F.;Ainge, James A.;Moser, May-Britt
通讯作者:
Moser, May-Britt