Interneurons in the Hippocampal Dentate Gyrus: an In Vivo intracellular Study

@article{Sik1997InterneuronsIT,
  title={Interneurons in the Hippocampal Dentate Gyrus: an In Vivo intracellular Study},
  author={Attila Sik and Markku Penttonen and Gy{\"o}rgy Buzs{\'a}ki},
  journal={European Journal of Neuroscience},
  year={1997},
  volume={9}
}
Interneurons in the dentate area were characterized physiologically and filled with biocytin in urethane‐anaesthetized rats. On the basis of axonal targets the following groups could be distinguished. (i) Large multipolar interneurons with spiny dendrites in the deep hilar region densely innervated the outer molecular layer and contacted both granule cells and parvalbumin‐positive neurons (hilar interneuron with perforant pathway‐associated axon terminals; HIPP cells). (ii) A pyramidal‐shaped… 
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Specialized electrophysiological properties of anatomically identified neurons in the hilar region of the rat fascia dentata.
TLDR
The resting potential, input resistance (RN), membrane time constant (taum), "sag" in hyperpolarizing responses, maximum firing rate during a 1-s current pulse, spike width, and fast and slow afterhyperpolarizations (AHPs) were determined for several different types of hilar neurons.
Unusual Target Selectivity of Perisomatic Inhibitory Cells in the Hilar Region of the Rat Hippocampus
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This study examined the postsynaptic targets of perisomatic inhibitory cells in the hilar region of the dentate gyrus where the proportion of potential target cells (excitatory mossy cells and inhibitory interneurons) is approximately equal.
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