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Role of GABAB receptor-mediated inhibition in reciprocal interareal pathways of rat visual cortex

... evoked by forward inputs and in turn may promote recurrent excitation through local intracolumnar circuits. This may provide a mechanism by which feedback inputs from higher cortical areas can amplify afferent signals in lower areas....

About Psychedelic Information Theory

... Signal Theory, which emphasized the role of recurrent excitation in cortical networks as the source of hallucinogenesis.6 A summary of this theory was presented at the 2006 'Toward a Science of Consciousness Conference' in Tucson, AZ.7 Over a p...

Recurrent Excitation in Neocortical Circuits

The majority of synapses in the mammalian cortex originate from cortical neurons. Indeed, the largest input to cortical cells comes from neighboring excitatory cells. However, most models of cortical development and processing do not reflect the anat...

Presynaptic regulation of recurrent excitation by D1 receptors in prefrontal circuits

... neurons is unknown but is thought to involve recurrent excitation among pyramidal neurons. Recent studies in awake behaving monkeys have demonstrated that the persistent activity in prefrontal neurons is modulated by dopamine. To examine the mec...

Orientation selectivity in visual cortex by fluctuation-controlled criticality

... currents modify the effect of strong recurrent excitation on orientation selectivity. Previously, we showed that, using a strong network inhibition countered by feedforward and recurrent excitation, the cortical model reproduced many ...

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