منابع مشابه
Single-trial phase precession in the hippocampus.
During the crossing of the place field of a pyramidal cell in the rat hippocampus, the firing phase of the cell decreases with respect to the local theta rhythm. This phase precession is usually studied on the basis of data in which many place field traversals are pooled together. Here we study properties of phase precession in single trials. We found that single-trial and pooled-trial phase pr...
متن کاملDissociation between the experience-dependent development of hippocampal theta sequences and single-trial phase precession.
Theta sequences are circuit-level activity patterns produced when groups of hippocampal place cells fire in sequences that reflect a compressed behavioral order of place fields within each theta cycle. The high temporal coordination between place cells exhibited in theta sequences is compatible with the induction of synaptic plasticity and has been proposed as one of the mechanisms underlying t...
متن کاملPhase Precession Through Synaptic Facilitation
Phase precession is a relational code that is thought to be important for episodic-like memory, for instance, the learning of a sequence of places. In the hippocampus, places are encoded through bursting activity of so-called place cells. The spikes in such a burst exhibit a precession of their firing phases relative to field potential theta oscillations (4-12 Hz); the theta phase of action pot...
متن کاملMutual phase synchronization in single trial data
Analog signals of the cerebral cortex in behaving animals are characterized by strong oscillatory components. To investigate functional interactions among different areas of the cortex, it is biologically plausible to determine dependencies of oscillatory signals such as their phase relation both within and across areas. The present study proposes the application of a clustering algorithm to de...
متن کاملHippocampal phase precession from dual input components.
Phase precession is a well known phenomenon in which a hippocampal place cell will fire action potentials at successively earlier phases (relative to the theta-band oscillations recorded in the local field potential) as an animal moves through the cell's receptive field (also known as a place field). We present a model in which CA1 pyramidal cell spiking is driven by dual input components arisi...
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ژورنال
عنوان ژورنال: Frontiers in Computational Neuroscience
سال: 2008
ISSN: 1662-5188
DOI: 10.3389/conf.neuro.10.2008.01.111