Hippocampal theta oscillations are slower in humans than in rodents: implications for models of spatial navigation and memory

J Jacobs - … Transactions of the Royal Society B …, 2014 - royalsocietypublishing.org
The theta oscillation is a neuroscience enigma. When a rat runs through an environment,
large-amplitude theta oscillations (4–10 Hz) reliably appear in the hippocampus's electrical …

Deep brain stimulation for enhancement of learning and memory

N Suthana, I Fried - Neuroimage, 2014 - Elsevier
Deep brain stimulation (DBS) has emerged as a powerful technique to treat a host of
neurological and neuropsychiatric disorders from Parkinson's disease and dystonia, to …

Prefrontal cortex reactivity underlies trait vulnerability to chronic social defeat stress

S Kumar, R Hultman, D Hughes, N Michel… - Nature …, 2014 - nature.com
Psychological stress contributes to the onset and exacerbation of nearly all neuropsychiatric
disorders. Individual differences in stress-regulatory circuits can therefore dramatically affect …

Beta-coupled high-frequency activity and beta-locked neuronal spiking in the subthalamic nucleus of Parkinson's disease

AI Yang, N Vanegas, C Lungu… - Journal of …, 2014 - Soc Neuroscience
Beta frequency (13–30 Hz) oscillatory activity in the subthalamic nucleus (STN) of
Parkinson's disease (PD) has been shown to influence the temporal dynamics of high …

Multifaceted roles for low-frequency oscillations in bottom-up and top-down processing during navigation and memory

AD Ekstrom, AJ Watrous - Neuroimage, 2014 - Elsevier
A prominent and replicated finding is the correlation between running speed and increases
in low-frequency oscillatory activity in the hippocampal local field potential. A more recent …

Five methodological challenges in cognitive electrophysiology

MX Cohen, R Gulbinaite - Neuroimage, 2014 - Elsevier
Here we discuss five methodological challenges facing the current cognitive
electrophysiology literature that address the roles of brain oscillations in cognition. The …

The spectro-contextual encoding and retrieval theory of episodic memory

AJ Watrous, AD Ekstrom - Frontiers in human neuroscience, 2014 - frontiersin.org
The spectral fingerprint hypothesis, which posits that different frequencies of oscillations
underlie different cognitive operations, provides one account for how interactions between …

Timing of single-neuron and local field potential responses in the human medial temporal lobe

HG Rey, I Fried, RQ Quiroga - Current Biology, 2014 - cell.com
The relationship between the firing of single cells and local field potentials (LFPs) has
received increasing attention, with studies in animals [1–11] and humans [12–14] …

Acute NMDA receptor antagonism disrupts synchronization of action potential firing in rat prefrontal cortex

LA Molina, I Skelin, AJ Gruber - PloS one, 2014 - journals.plos.org
Antagonists of N-methyl-D-aspartate receptors (NMDAR) have psychotomimetic effects in
humans and are used to model schizophrenia in animals. We used high-density …

MAGELLAN: A cognitive map–based model of human wayfinding.

JR Manning, TF Lew, N Li, R Sekuler… - Journal of Experimental …, 2014 - psycnet.apa.org
In an unfamiliar environment, searching for and navigating to a target requires that spatial
information be acquired, stored, processed, and retrieved. In a study encompassing all of …