RT Journal Article
SR Electronic
T1 Interneuronal mechanisms of hippocampal theta oscillation in full-scale model of the CA1 circuit
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 087403
DO 10.1101/087403
A1 Bezaire, Marianne J.
A1 Raikov, Ivan
A1 Burk, Kelly
A1 Vyas, Dhrumil
A1 Soltesz, Ivan
YR 2016
UL http://biorxiv.org/content/early/2016/11/12/087403.abstract
AB The hippocampal theta rhythm plays important roles in information processing; however, the mechanisms of its generation are not well understood. We developed a data-driven, supercomputer-based, full-scale (1:1) model of the CA1 area and studied its interneurons during theta oscillations. Theta rhythm with phase-locked gamma oscillations and phase-preferential discharges of distinct in terneuronal types spontaneously emerged from the isolated CA1 circuit without rhythmic inputs. Perturbation experiments identified parvalbumin-expressing interneurons and neurogliaform cells, as well as interneuronal diversity itself, as important factors in theta generation. These simulations reveal new insights into the spatiotemporal organization of the CA1 circuit during theta oscillations.