Theta phase precession of grid and place cell firing in open environments

Place and grid cells in the rodent hippocampal formation tend to fire spikes at successively earlier phases relative to the local field potential theta rhythm as the animal runs through the cell's firing field on a linear track. However, this 'phase precession' effect is less well cha...

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Veröffentlicht in:	Philosophical Transactions: Biological Sciences. - The Royal Society. - 369(2014), 1635, Seite 1-10
1. Verfasser:	Jeewajee, A. (VerfasserIn)
Weitere Verfasser:	Barry, C., Douchamps, V., Manson, D., Lever, C., Burgess, N.
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2014
Zugriff auf das übergeordnete Werk:	Philosophical Transactions: Biological Sciences
Schlagworte:	Physical sciences Biological sciences Mathematics Applied sciences


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245	1	0	\|a Theta phase precession of grid and place cell firing in open environments
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520			\|a Place and grid cells in the rodent hippocampal formation tend to fire spikes at successively earlier phases relative to the local field potential theta rhythm as the animal runs through the cell's firing field on a linear track. However, this 'phase precession' effect is less well characterized during foraging in twodimensional open field environments. Here, we mapped runs through the firing fields onto a unit circle to pool data from multiple runs. We asked which of seven behavioural and physiological variables show the best circular-linear correlation with the theta phase of spikes from place cells in hippocampal area CA1 and from grid cells from superficial layers of medical entorhinal cortex. The best correlate was the distance to the firing fields peak projected onto the animal's current running direction. This was significantly stronger than other correlates, such as instantaneous firing rate and time-infield, but similar in strength to correlates with other measures of distance travelled through the firing field. Phase precession was stronger in place cells than grid cells overall, and robust phase precession was seen in traversals through firing field peripheries (although somewhat less than in traversals through the centre), consistent with phase coding of displacement along the current direction. This type of phase coding, of place field distance ahead of or behind the animal, may be useful for allowing calculation of goal directions during navigation.
540			\|a Copyright © 2013 The Royal Society
650		4	\|a Physical sciences \|x Physics \|x Mechanics \|x Classical mechanics \|x Kinetics \|x Gyration \|x Precession
650		4	\|a Biological sciences \|x Biology \|x Anatomy \|x Nervous system \|x Central nervous system \|x Brain \|x Hippocampus
650		4	\|a Biological sciences \|x Biology \|x Cytology \|x Cell biology \|x Cell physiology
650		4	\|a Biological sciences \|x Biology \|x Cytology \|x Cell biology \|x Cells \|x Neurons
650		4	\|a Biological sciences \|x Biology \|x Anatomy \|x Nervous system \|x Central nervous system \|x Brain \|x Limbic system \|x Parahippocampal gyrus \|x Entorhinal cortex
650		4	\|a Biological sciences \|x Biology \|x Neuroscience \|x Behavioral neuroscience
650		4	\|a Mathematics \|x Applied mathematics \|x Statistics \|x Applied statistics \|x Descriptive statistics \|x Measures of variability \|x Statistical variance
650		4	\|a Applied sciences \|x Engineering \|x Transportation \|x Transportation engineering \|x Navigation
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Geodesy \|x Cartography \|x Maps
650		4	\|a Mathematics \|x Applied mathematics \|x Statistics \|x Applied statistics \|x Descriptive statistics \|x Correlations \|x PART II: SPATIAL CELLS: GRID, HEAD DIRECTION, PLACE AND BOUNDARY CELLS
655		4	\|a research-article
700	1		\|a Barry, C. \|e verfasserin \|4 aut
700	1		\|a Douchamps, V. \|e verfasserin \|4 aut
700	1		\|a Manson, D. \|e verfasserin \|4 aut
700	1		\|a Lever, C. \|e verfasserin \|4 aut
700	1		\|a Burgess, N. \|e verfasserin \|4 aut
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773	1	8	\|g volume:369 \|g year:2014 \|g number:1635 \|g pages:1-10
856	4	0	\|u https://www.jstor.org/stable/24499837 \|3 Volltext
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