| Publication |
Sentence |
Publish Date |
Extraction Date |
Species |
| 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. |
such differences in subunit representation at ampa-receptor-mediated synapses would not only lead to differences in calcium permeability and functional characteristics across these two cell classes, but might also be relevant to the hippocampal patterns of selective vulnerability with respect to excitotoxicity and neurodegeneration. |
1998-04-14 |
2023-08-12 |
rat |
| H Tanila, M L Shapiro, H Eichenbau. Discordance of spatial representation in ensembles of hippocampal place cells. Hippocampus. vol 7. issue 6. 1998-03-05. PMID:9443058. |
these findings indicate that hippocampal neurons independently encode distinct subsets of the cues in a complex environment, although processing within the hippocampal network may actively reduce the simultaneous representation of conflicting orientation information. |
1998-03-05 |
2023-08-12 |
rat |
| M L Shapiro, H Tanila, H Eichenbau. Cues that hippocampal place cells encode: dynamic and hierarchical representation of local and distal stimuli. Hippocampus. vol 7. issue 6. 1998-03-05. PMID:9443059. |
cues that hippocampal place cells encode: dynamic and hierarchical representation of local and distal stimuli. |
1998-03-05 |
2023-08-12 |
rat |
| M L Shapiro, H Tanila, H Eichenbau. Cues that hippocampal place cells encode: dynamic and hierarchical representation of local and distal stimuli. Hippocampus. vol 7. issue 6. 1998-03-05. PMID:9443059. |
together, the results show that hippocampal neurons encode a hierarchical representation of environmental information. |
1998-03-05 |
2023-08-12 |
rat |
| P E Gilbert, R P Kesner, W E DeCotea. Memory for spatial location: role of the hippocampus in mediating spatial pattern separation. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 18. issue 2. 1998-02-03. PMID:9425021. |
it is proposed that hippocampal lesions decrease efficiency in pattern separation, resulting in impairments in trials with increased spatial similarity among working-memory representations. |
1998-02-03 |
2023-08-12 |
rat |
| K J Jeffery, J G Donnett, N Burgess, J M O'Keef. Directional control of hippocampal place fields. Experimental brain research. vol 117. issue 1. 1998-01-07. PMID:9386011. |
pyramidal cells in the rat hippocampus fire whenever the animal is in a particular place, suggesting that the hippocampus maintains a representation of the environment. |
1998-01-07 |
2023-08-12 |
rat |
| Y L Qin, B L McNaughton, W E Skaggs, C A Barne. Memory reprocessing in corticocortical and hippocampocortical neuronal ensembles. Philosophical transactions of the Royal Society of London. Series B, Biological sciences. vol 352. issue 1360. 1997-12-29. PMID:9368941. |
thus, traces of recent experience are re-expressed in both hippocampal and neocortical circuits during sleep, and the representations in the two areas tend to correspond to the same experience. |
1997-12-29 |
2023-08-12 |
rat |
| T Kobayashi, H Nishijo, M Fukuda, J Bures, T On. Task-dependent representations in rat hippocampal place neurons. Journal of neurophysiology. vol 78. issue 2. 1997-10-23. PMID:9307098. |
task-dependent representations in rat hippocampal place neurons. |
1997-10-23 |
2023-08-12 |
rat |
| T Kobayashi, H Nishijo, M Fukuda, J Bures, T On. Task-dependent representations in rat hippocampal place neurons. Journal of neurophysiology. vol 78. issue 2. 1997-10-23. PMID:9307098. |
these results suggest two strategies for how hippocampal neurons incorporate an incredible variety of perceptions into a unified representation of the environment: through flexible use of information and the creation of new representations. |
1997-10-23 |
2023-08-12 |
rat |
| T Schanze, R Eckhor. Phase correlation among rhythms present at different frequencies: spectral methods, application to microelectrode recordings from visual cortex and functional implications. International journal of psychophysiology : official journal of the International Organization of Psychophysiology. vol 26. issue 1-3. 1997-09-04. PMID:9203002. |
our suggestions include: (1) visual feature linking across different temporal and spatial scales provided by coherent oscillations at high and low frequencies; (2) linking of visual cortical representations (high frequencies) to subcortical centers (low frequencies) like the thalamus and hippocampus; and (3) temporal segmentation of the sustained stream of incoming visual information into separate frames at different temporal resolutions in order to prevent perceptual smearing due to shifting retinal images. |
1997-09-04 |
2023-08-12 |
cat |
| E J Golob, J S Taub. Head direction cells and episodic spatial information in rats without a hippocampus. Proceedings of the National Academy of Sciences of the United States of America. vol 94. issue 14. 1997-08-05. PMID:9207146. |
this representation shares features in common with mnemonic processes involving episodic memory that until now were assumed to require an intact hippocampus. |
1997-08-05 |
2023-08-12 |
rat |
| H W Boddeke, R Best, P H Boeijing. Synchronous 20 Hz rhythmic activity in hippocampal networks induced by activation of metabotropic glutamate receptors in vitro. Neuroscience. vol 76. issue 3. 1997-07-21. PMID:9135039. |
the 20 hz rhythmic activity induced by activation of metabotropic glutamate receptors represents a new aspect of synchronized activity in the hippocampus and may be involved in the binding and representation of converging sensory inputs. |
1997-07-21 |
2023-08-12 |
rat |
| H Tanila, M Shapiro, M Gallagher, H Eichenbau. Brain aging: changes in the nature of information coding by the hippocampus. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 17. issue 13. 1997-07-17. PMID:9185553. |
thus changes in hippocampal memory representation associated with aging and memory loss can be characterized as a rigid encoding of only part of the available information. |
1997-07-17 |
2023-08-12 |
human |
| M A Gluck, B R Ermita, L M Oliver, C E Myer. Extending models of hippocampal function in animal conditioning to human amnesia. Memory (Hove, England). vol 5. issue 1-2. 1997-06-16. PMID:9156098. |
in several recent papers we have developed a computational theory of hippocampal function which argues that this brain region plays a critical role in the formation of new stimulus representations during learning (gluck & myers, 1993, 1995; myers & gluck, 1996; myers, gluck, & granger, 1995). |
1997-06-16 |
2023-08-12 |
human |
| N J Cohen, R A Poldrack, H Eichenbau. Memory for items and memory for relations in the procedural/declarative memory framework. Memory (Hove, England). vol 5. issue 1-2. 1997-06-16. PMID:9156097. |
we review recent work from our laboratories demonstrating the fundamentally relational and flexible nature of declarative memory representation, in both humans and animals, and the essential role of the hippocampal system in relational memory processing. |
1997-06-16 |
2023-08-12 |
Not clear |
| A D Pickerin. New approaches to the study of amnesic patients: what can a neurofunctional philosophy and neural network methods offer? Memory (Hove, England). vol 5. issue 1-2. 1997-06-16. PMID:9156101. |
it is suggested that the hippocampus itself may encode exemplar representations, and these may provide a basis for episodic memory as well as some types of category learning. |
1997-06-16 |
2023-08-12 |
human |
| J L McClelland, N H Goddar. Considerations arising from a complementary learning systems perspective on hippocampus and neocortex. Hippocampus. vol 6. issue 6. 1997-04-28. PMID:9034852. |
the data to account for include: 1) neurophysiological findings concerning representations in hippocampal areas, 2) behavioral evidence demonstrating a spatial role for hippocampus, 3) and effects of surgical and pharmacological manipulations on neuronal firing in hippocampal regions in behaving animals. |
1997-04-28 |
2023-08-12 |
human |
| M Bunse. A hippocampal role in the flexible representation of memory. Molecular psychiatry. vol 1. issue 3. 1997-04-22. PMID:9118338. |
a hippocampal role in the flexible representation of memory. |
1997-04-22 |
2023-08-12 |
Not clear |
| B J Everitt, T W Robbin. Central cholinergic systems and cognition. Annual review of psychology. vol 48. 1997-03-31. PMID:9046571. |
evidence is presented that (a) the nucleus basalis-neocortical cholinergic system contributes greatly to visual attentional function, but not to mnemonic processes per se; (b) the septohippocampal projection is involved in the modulation of short-term spatial (working) memory processes, perhaps by prolonging the neural representation of external stimuli within the hippocampus; and (c) the diagonal band-cingulate cortex cholinergic projection impacts on the ability to utilize response rules through conditional discrimination. |
1997-03-31 |
2023-08-12 |
Not clear |
| J M Long, R P Kesne. The effects of dorsal versus ventral hippocampal, total hippocampal, and parietal cortex lesions on memory for allocentric distance in rats. Behavioral neuroscience. vol 110. issue 5. 1997-03-18. PMID:8918996. |
total hippocampal lesions impaired working-memory representation for allocentric distance, whereas parietal cortex lesions resulted in only a transient impairment. |
1997-03-18 |
2023-08-12 |
rat |