Abstract：
:Hippocampal CA1 pyramidal neurons have frequently been regarded as a homogeneous cell population in biophysical, pharmacological and modeling studies. We found robust differences between pyramidal neurons residing in the deep and superficial CA1 sublayers in rats. Compared with their superficial peers, deep pyramidal cells fired at higher rates, burst more frequently, were more likely to have place fields and were more strongly modulated by slow oscillations of sleep. Both deep and superficial pyramidal cells fired preferentially at the trough of theta oscillations during maze exploration, whereas deep pyramidal cells shifted their preferred phase of firing to the peak of theta during rapid eye movement (REM) sleep. Furthermore, although the majority of REM theta phase-shifting cells fired at the ascending phase of gamma oscillations during waking, nonshifting cells preferred the trough. Thus, CA1 pyramidal cells in adjacent sublayers can address their targets jointly or differentially, depending on brain states.
journal_name
Nat Neuroscijournal_title
Nature neuroscienceauthors
Mizuseki K,Diba K,Pastalkova E,Buzsáki Gdoi
10.1038/nn.2894subject
Has Abstractpub_date
2011-08-07 00:00:00pages
1174-81issue
9eissn
1097-6256issn
1546-1726pii
nn.2894journal_volume
14pub_type
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