Lamellar organization of hippocampal excitatory pathways

@article{Andersen2004LamellarOO,
  title={Lamellar organization of hippocampal excitatory pathways},
  author={Per Andersen and Tim V. P. Bliss and Knut Kristian Skrede},
  journal={Experimental Brain Research},
  year={2004},
  volume={13},
  pages={222-238}
}
Summary1.Entorhinal activation of the hippocampal cortex involves the sequential activation of a four-membered pathway: the perforant path from the entorhinal area — the mossy fibres from the dentate granule cells — the Schaffer collaterals of the CA3 pyramidal cells and finally, the CA1 pyramidal cell axons in the alveus.2.The spatial orientation of these four fibre bundles has been studied by recording the extracellular field potentials (population spike), signalling the discharge of neurones… 
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  • T. Lømo
  • Biology
    Experimental Brain Research
  • 2004
TLDR
In rabbits, anaesthetized with urethane/chloralose, stimulation with tungsten microelectrodes was employed to initiate a volley in the perforant path fibres which made en-passage contacts with the apical dendrites of dentate granule cells, indicating an active synaptic sink restricted to the middle third of the dendritic region.
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TLDR
It is concluded that it is heuristically most reasonable to consider the hippocampal formation as a three-dimensional cortical region with important information processing taking place in both the transverse and long axes.
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TLDR
Features of CA2 intemeurones that extend across subfields may perform a unique function are revealed and are quite distinct from those described in CAl in this and previous studies.
The localization of leucine-enkephalin immunoreactivity within the guinea pig hippocampus
TLDR
Various types of immunoreactive cell bodies were found in the fascia dentata, CA3, CA1, subiculum and in the entorhinal cortex of the guinea pig.
Conduction latency along CA3 hippocampal axons from rat
TLDR
One consequence of the findings is that synchronous firing of neighboring CA3 pyramidal cells does not necessarily give synchronous inputs to common target CA1 neurons.
Mossy fiber input to CA3 interneurons: Balancing short term plasticity and regulation by presynaptic receptors.
TLDR
The goal of this thesis was to understand the synaptic physiology of mossy fiber input to str.
Mixed neurotransmission in the hippocampal mossy fibers
TLDR
Dye coupling between these types of principal cells and ultrastructural studies showing the co-existence of AMPA receptors and connexin 36 in this synapse corroborate their presence, and a deeper consideration of mixed neurotransmission taking place in thissynapse may expand the search and understanding of communication channels between different regions of the mammalian CNS.
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TLDR
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