I propose that synchronization affects communication between neuronal groups. Gamma-
band (30–90 Hz) synchronization modulates excitation rapidly enough that it escapes the …

This Perspective considers the influential notion of a canonical (cortical) microcircuit in light
of recent theories about neuronal processing. Specifically, we conciliate quantitative studies …

How is it that thoroughly physical material beings such as ourselves can think, dream, feel,
create and understand ideas, theories and concepts? How does mere matter give rise to all …

Primate visual cortex is hierarchically organized. Bottom-up and top-down influences are
exerted through distinct frequency channels, as was recently revealed in macaques by …

The laminar location of the cell bodies and terminals of interareal connections determines
the hierarchical structural organization of the cortex and has been intensively studied …

Concepts shape the interpretation of facts. One of the most popular concepts in systems
neuroscience is that of 'hierarchy'. However, this concept has been interpreted in many …

Cognition results from interactions among functionally specialized but widely distributed
brain regions; however, neuroscience has so far largely focused on characterizing the …

The descending projections from motor cortex share many features with top-down or
backward connections in visual cortex; for example, corticospinal projections originate in …

Predictive coding theories of sensory brain function interpret the hierarchical construction of
the cerebral cortex as a Bayesian, generative model capable of predicting the sensory data …

Retrograde tracer injections in 29 of the 91 areas of the macaque cerebral cortex revealed
1,615 interareal pathways, a third of which have not previously been reported. A weight …