Theta frequency (4–8 Hz) fluctuations of the local field potential have long been implicated
in learning and memory. Human studies of episodic memory, however, have provided mixed …

The theta rhythm is one of the largest and most sinusoidal activity patterns in the brain. Here
I survey progress in the field of theta rhythms research. I present arguments supporting the …

The emergence of a unified cognitive moment relies on the coordination of scattered
mosaics of functionally specialized brain regions. Here we review the mechanisms of large …

Theta oscillations represent the" on-line" state of the hippocampus. The extracellular
currents underlying theta waves are generated mainly by the entorhinal input, CA3 …

Neural correlates of control mechanisms in human working memory are discussed at two
levels in this review:(i) at 'item level', where in multi-item working memory information needs …

One of the central questions in neuroscience is how communication in the brain is organized
under normal conditions and how this architecture breaks down in neurological disease. It …

There has been tremendous advances in our ability to produce images of human brain
function. Applications of functional brain imaging extend from improving our understanding …

Functional connectivity between cortical areas may appear as correlated time behavior of
neural activity. It has been suggested that merging of separate features into a single percept …

Entropy is a powerful tool for quantification of the brain function and its information
processing capacity. This is evident in its broad domain of applications that range from …

Research on attention-deficit/hyperactivity disorder (ADHD), a highly prevalent and
controversial condition, has, for the most part, been descriptive and atheoretical. The …