Tamás F. Freund

TL;DR: Reconstruction of the cells' dendritic and axonal arbor revealed morphological properties similar to CA1 pyramidal cells with some characteristic differences, supporting the conclusion that RGCs are excitatory principal neurons.

TL;DR: The connectivity between two subcortical nuclei involved in hippocampal theta activity, the supramammillary nucleus and the medial septum-diagonal band of Broca complex, was examined to suggest that the nucleus has the potential for an indirect action via the innervation of both the GABAergic and cholinergic septohippocampal neurons.

TL;DR: A highly specific, spatiotemporally precise, inhibitory ascending brainstem pathway that effectively controls hippocampal fear memory formation is discovered.

TL;DR: The data indicate that midbrain raphe GABA(B) mechanisms play an important role in behavioral state control and in hippocampal activity, in particular.

TL;DR: It is concluded that SPR‐positive interneurons are functionally heterogeneous and participate in different inhibitory processes: (1) perisomatic inhibition of principal cells (CCK‐containing cells, and parvalbumin‐positive cells in the dentate gyrus), and (2) feedback dendritic inhibition in the entorhinal termination zone (somatostatin and NPY‐containing Cells, and (3) innervation of other interneurs).