[HTML][HTML] Bidirectional propagation of low frequency oscillations over the human hippocampal surface
The hippocampus is diversely interconnected with other brain systems along its axis. Cycles
of theta-frequency activity are believed to propagate from the septal to temporal pole, yet it is …
of theta-frequency activity are believed to propagate from the septal to temporal pole, yet it is …
[HTML][HTML] Multimodal determinants of phase-locked dynamics across deep-superficial hippocampal sublayers during theta oscillations
A Navas-Olive, M Valero, T Jurado-Parras… - Nature …, 2020 - nature.com
Theta oscillations play a major role in temporarily defining the hippocampal rate code by
translating behavioral sequences into neuronal representations. However, mechanisms …
translating behavioral sequences into neuronal representations. However, mechanisms …
Spatio-temporal organization of network activity patterns in the hippocampus
The hippocampus is a layered brain network, composed of diverse cell types arranged in
multiple microcircuits with anatomically structured inputs, all working in concert to support …
multiple microcircuits with anatomically structured inputs, all working in concert to support …
Brain state-dependent recruitment of high-frequency oscillations in the human hippocampus
Ripples are high-frequency bouts of coordinated hippocampal activity believed to be crucial
for information transfer and memory formation. We used intracortical macroelectrodes to …
for information transfer and memory formation. We used intracortical macroelectrodes to …
Within-cycle instantaneous frequency profiles report oscillatory waveform dynamics
AJ Quinn, V Lopes-dos-Santos… - Journal of …, 2021 - journals.physiology.org
The nonsinusoidal waveform is emerging as an important feature of neuronal oscillations.
However, the role of single-cycle shape dynamics in rapidly unfolding brain activity remains …
However, the role of single-cycle shape dynamics in rapidly unfolding brain activity remains …
[HTML][HTML] Lateralized hippocampal oscillations underlie distinct aspects of human spatial memory and navigation
The hippocampus plays a vital role in various aspects of cognition including both memory
and spatial navigation. To understand electrophysiologically how the hippocampus supports …
and spatial navigation. To understand electrophysiologically how the hippocampus supports …
[HTML][HTML] Parsing hippocampal theta oscillations by nested spectral components during spatial exploration and memory-guided behavior
V Lopes-dos-Santos, GM van de Ven, A Morley… - Neuron, 2018 - cell.com
Theta oscillations reflect rhythmic inputs that continuously converge to the hippocampus
during exploratory and memory-guided behavior. The theta-nested operations that organize …
during exploratory and memory-guided behavior. The theta-nested operations that organize …
[HTML][HTML] Theta and gamma rhythmic coding through two spike output modes in the hippocampus during spatial navigation
Hippocampal CA1 neurons generate single spikes and stereotyped bursts of spikes.
However, it is unclear how individual neurons dynamically switch between these output …
However, it is unclear how individual neurons dynamically switch between these output …
[HTML][HTML] Functionally distinct high and low theta oscillations in the human hippocampus
Based on rodent models, researchers have theorized that the hippocampus supports
episodic memory and navigation via the theta oscillation, a~ 4–10 Hz rhythm that …
episodic memory and navigation via the theta oscillation, a~ 4–10 Hz rhythm that …
Frequency-dependent, cell type-divergent signaling in the hippocamposeptal projection
Hippocampal oscillations are critical for information processing, and are strongly influenced
by inputs from the medial septum. Hippocamposeptal neurons provide direct inhibitory …
by inputs from the medial septum. Hippocamposeptal neurons provide direct inhibitory …