| Publication |
Sentence |
Publish Date |
Extraction Date |
Species |
| Paul A Lipton, John A White, Howard Eichenbau. Disambiguation of overlapping experiences by neurons in the medial entorhinal cortex. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 27. issue 21. 2007-06-22. PMID:17522322. |
furthermore, the results suggest that neuronal populations in the dcmec and ca1 differentially emphasize complementary aspects of spatial memory representations. |
2007-06-22 |
2023-08-12 |
Not clear |
| D Yoganarasimha, Xintian Yu, James J Knieri. Head direction cell representations maintain internal coherence during conflicting proximal and distal cue rotations: comparison with hippocampal place cells. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 26. issue 2. 2006-03-17. PMID:16407560. |
the representation of a well explored environment by ca1 place cells can be split when there is conflicting information from salient proximal and distal cues, because some place fields rotate to follow the distal cues, whereas others rotate to follow the proximal cues (knierim, 2002a). |
2006-03-17 |
2023-08-12 |
Not clear |
| D Yoganarasimha, Xintian Yu, James J Knieri. Head direction cell representations maintain internal coherence during conflicting proximal and distal cue rotations: comparison with hippocampal place cells. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 26. issue 2. 2006-03-17. PMID:16407560. |
in contrast, the ca3 representation is more coherent than ca1, because the place fields in ca3 tend to rotate in the same direction (lee et al., 2004). |
2006-03-17 |
2023-08-12 |
Not clear |
| D Yoganarasimha, Xintian Yu, James J Knieri. Head direction cell representations maintain internal coherence during conflicting proximal and distal cue rotations: comparison with hippocampal place cells. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 26. issue 2. 2006-03-17. PMID:16407560. |
the present study tests whether the head direction cell network produces a split representation or remains coherent under these conditions by simultaneously recording both ca1 place cells and head direction cells from the thalamus. |
2006-03-17 |
2023-08-12 |
Not clear |
| D Yoganarasimha, Xintian Yu, James J Knieri. Head direction cell representations maintain internal coherence during conflicting proximal and distal cue rotations: comparison with hippocampal place cells. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 26. issue 2. 2006-03-17. PMID:16407560. |
in agreement with previous studies, split representations of the environment were observed in ensembles of ca1 place cells in approximately 75% of the mismatch sessions, in which some fields followed the counterclockwise rotation of proximal cues and other fields followed the clockwise rotation of distal cues. |
2006-03-17 |
2023-08-12 |
Not clear |
| D Yoganarasimha, Xintian Yu, James J Knieri. Head direction cell representations maintain internal coherence during conflicting proximal and distal cue rotations: comparison with hippocampal place cells. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 26. issue 2. 2006-03-17. PMID:16407560. |
the findings support the notion that the head direction cells may be part of an attractor network bound more strongly to distal landmarks than proximal landmarks, even under conditions in which the ca1 place representation loses its coherence. |
2006-03-17 |
2023-08-12 |
Not clear |
| Matthew Hartley, Neill Taylor, John Taylo. Subfield variations in hippocampal processing-components of a spatial navigation system. Neural networks : the official journal of the International Neural Network Society. vol 18. issue 5-6. 2005-11-09. PMID:16112548. |
recent research has shown that these place cells and their corresponding representations of space behave differently in the ca3 and ca1 subfields of the hippocampus. |
2005-11-09 |
2023-08-12 |
Not clear |
| Riccardo Barbieri, Matthew A Wilson, Loren M Frank, Emery N Brow. An analysis of hippocampal spatio-temporal representations using a Bayesian algorithm for neural spike train decoding. IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society. vol 13. issue 2. 2005-08-01. PMID:16003890. |
we use the algorithm to study whether the representation of position by the ensemble spiking activity of pyramidal neurons in the ca1 region of the rat hippocampus is more consistent with prospective coding, i.e., future position, or retrospective coding, past position. |
2005-08-01 |
2023-08-12 |
rat |
| D Yoganarasimha, James J Knieri. Coupling between place cells and head direction cells during relative translations and rotations of distal landmarks. Experimental brain research. vol 160. issue 3. 2005-05-24. PMID:15340767. |
these results suggest that the precise firing locations of place cells are controlled by an interaction between local and idiothetic cues, and the orientation of the ca1 ensemble representation relative to the distal landmarks may be controlled indirectly by the distal landmarks' influence over the bearing of the head direction cell system. |
2005-05-24 |
2023-08-12 |
rat |
| Loren M Frank, Garrett B Stanley, Emery N Brow. Hippocampal plasticity across multiple days of exposure to novel environments. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 24. issue 35. 2005-04-05. PMID:15342735. |
we studied the formation of new place representations in rats by examining the changes in place-specific firing of neurons in the ca1 region of the hippocampus and the relationship between these changes and behavioral change across multiple days of exposure to novel places. |
2005-04-05 |
2023-08-12 |
rat |
| Almira Vazdarjanova, John F Guzowsk. Differences in hippocampal neuronal population responses to modifications of an environmental context: evidence for distinct, yet complementary, functions of CA3 and CA1 ensembles. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 24. issue 29. 2005-03-21. PMID:15269259. |
additionally, as indicated by the percentage of active neurons, the context representation was more sparse in ca3 (approximately 18%) than in ca1 (approximately 35%). |
2005-03-21 |
2023-08-12 |
rat |
| Stefan Leutgeb, Jill K Leutgeb, Alessandro Treves, May-Britt Moser, Edvard I Mose. Distinct ensemble codes in hippocampal areas CA3 and CA1. Science (New York, N.Y.). vol 305. issue 5688. 2004-09-10. PMID:15272123. |
we examined the function of this structural differentiation by determining how cell ensembles in rat ca3 and ca1 generate representations of rooms with common spatial elements. |
2004-09-10 |
2023-08-12 |
rat |
| Stefan Leutgeb, Jill K Leutgeb, Alessandro Treves, May-Britt Moser, Edvard I Mose. Distinct ensemble codes in hippocampal areas CA3 and CA1. Science (New York, N.Y.). vol 305. issue 5688. 2004-09-10. PMID:15272123. |
after exposure to a novel room, ensemble activity developed slower in ca3 than ca1, suggesting that the representations emerged independently. |
2004-09-10 |
2023-08-12 |
rat |
| Inah Lee, D Yoganarasimha, Geeta Rao, James J Knieri. Comparison of population coherence of place cells in hippocampal subfields CA1 and CA3. Nature. vol 430. issue 6998. 2004-08-09. PMID:15229614. |
here we report that in a dynamically changing environment, in which familiar landmarks on the behavioural track and along the wall are rotated relative to each other, the population representation of the environment is more coherent between the original and cue-altered environments in ca3 than in ca1. |
2004-08-09 |
2023-08-12 |
Not clear |
| Inah Lee, D Yoganarasimha, Geeta Rao, James J Knieri. Comparison of population coherence of place cells in hippocampal subfields CA1 and CA3. Nature. vol 430. issue 6998. 2004-08-09. PMID:15229614. |
these results demonstrate a functional heterogeneity between the place cells of ca3 and ca1 at the level of neural population representations. |
2004-08-09 |
2023-08-12 |
Not clear |
| Inah Lee, Geeta Rao, James J Knieri. A double dissociation between hippocampal subfields: differential time course of CA3 and CA1 place cells for processing changed environments. Neuron. vol 42. issue 5. 2004-07-19. PMID:15182719. |
these results support the hypothesis that ca3 plays a key role in the rapid formation of representations of new spatiotemporal sequences, whereas ca1 may be more important for comparing currently experienced sequence information with stored sequences in the ca3 network. |
2004-07-19 |
2023-08-12 |
Not clear |
| Y He, W G Janssen, P Vissavajjhala, J H Morriso. Synaptic distribution of GluR2 in hippocampal GABAergic interneurons and pyramidal cells: a double-label immunogold analysis. Experimental neurology. vol 150. issue 1. 1998-04-14. PMID:9514819. |
we hypothesized that such differences might be related to differences in the subunit stoichiometry at the ampa synapses in each cell class, and used a glur2-specific monoclonal antibody in a double-label immunogold protocol with anti-gaba and anti-cam kinase ii to compare the glur2 representation at asymmetric synapses in gaba neurons to that of pyramidal cells in rat ca1. |
1998-04-14 |
2023-08-12 |
rat |
| T J McHugh, K I Blum, J Z Tsien, S Tonegawa, M A Wilso. Impaired hippocampal representation of space in CA1-specific NMDAR1 knockout mice. Cell. vol 87. issue 7. 1997-02-03. PMID:8980239. |
these results demonstrate that nmda receptor-mediated synaptic plasticity is necessary for the proper representation of space in the ca1 region of the hippocampus. |
1997-02-03 |
2023-08-12 |
mouse |
| F Pongrácz, N P Poolos, J D Kocsis, G M Shepher. A model of NMDA receptor-mediated activity in dendrites of hippocampal CA1 pyramidal neurons. Journal of neurophysiology. vol 68. issue 6. 1993-03-03. PMID:1337105. |
representation of ca1 neurons included nmda and non-nmda excitatory dendritic synapses, dendritic and somatic inhibition, five intrinsic membrane conductances, and provision for activity-dependent intracellular and extracellular ion concentration changes. |
1993-03-03 |
2023-08-11 |
Not clear |
| J Wenzel, N N Bogolepo. [Electronmicroscopical and morphometrical study of rat hippocampal synapses]. Journal fur Hirnforschung. vol 17. issue 5. 1977-05-12. PMID:1021600. |
the neurons of the hippocampus show from the region ca4 towards the region ca1 an increasing "pyramidalization" which is explained respecting the neuronal structure and synaptic architectonics as the result of a specific presynaptic representation of afferents at the neurons. |
1977-05-12 |
2023-08-11 |
rat |