Alexandre Hyafil, Lorenzo Fontolan ... Anne-Lise Giraud
Computational modelling shows that coupled theta and gamma oscillations in the auditory cortex can decompose speech into its syllabic constituents, and organize the neural spiking at faster timescale into a decodable format.
Phase-locking of hippocampal theta and gamma waves has been proposed to support memory formation, but an analysis using robust statistical methods finds no convincing evidence for the phenomenon.
Spontaneous theta oscillations and interneuron-specific phase preferences emerge spontaneously in a full-scale model of the isolated hippocampal CA1 subfield, corroborating and extending recent experimental findings.
Nikolaos Vardalakis, Amélie Aussel ... Fabien B Wagner
Combining biophysically realistic hippocampal neurons with coupled phase oscillators that represent theta inputs enables probing the phase-dependent effects of neurostimulation on theta-nested gamma oscillations in normal and pathological states.
Inhibitory noninvasive stimulation to the precuneus disrupts theta and gamma oscillatory coupling between medial temporal lobes and neocortical regions during complex personal memory retrieval.
Daniel R Schonhaut, Aditya M Rao ... Michael J Kahana
Neural spiking throughout the MTL is synchronous with hippocampal theta phase during spatial memory and navigation experiments in humans, even after controlling for phase-coupling to local theta oscillations.
Human hippocampal connectivity to network afferents varies continuously with the phase of the local theta oscillation, confirming a putative mechanism by which neural oscillations modulate human hippocampal function.
Lara M Rangel, Jon W Rueckemann ... Howard Eichenbaum
Different rhythms uniquely contribute to task-related processing in the hippocampus, and changes in the rhythmic profile of the hippocampus reflect dynamic coordination of its cell activity.