We study the spike statistics of neurons in a network with dynamically balanced excitation and inhibition. Our model, intended to represent a generic cortical column, comprises randomly connected excitatory and inhibitory leaky integrate-and-fire neurons, driven by excitatory input from an external population. The high connectivity permits a mean field description in which synaptic currents can...

According to a model of the spatiotemporal weighting function (Manahilov, V. Spatiotemporal visual response at suprathreshold stimuli. Vision Research, 1995, 35, 227-237; and Triphasic temporal impulse responses and Mach bands in time. Vision Research, 38, 447-458) the waveform of the temporal-impulse response and the cortical spread of the spatial-impulse response should not depend on the reti...

Cortical involvement in the evolution-favored automatic reaction to danger was studied. Electrical neural activity was recorded from 31 subjects, reporting fear of spiders, at 60 scalp locations. Visual stimuli containing spiders (negative elements) or, alternatively, nonnegative elements were presented to subjects, though they were unaware of their presence: a concurrent visual detection task ...

In the previous investigation1) the direct cortical response was recorded in various cortical regions of the rabbit. It was found that the response was a positive-negative potential in regions in which layer ‡W was well developed, and a simple surface-negative one in regions in which layer ‡W was poorly developed or almost lacking. The present experiments were performed to obtain further inform...

Musicians have a variety of perceptual and cortical specializations compared to non-musicians. Recent studies have shown that potentials evoked from primarily brainstem structures are enhanced in musicians, compared to non-musicians. Specifically, musicians have more robust representations of pitch periodicity and faster neural timing to sound onset when listening to sounds or both listening to...

Abstract Background Electrophysiological techniques have been used for discriminating myoclonus from other hyperkinetic movement disorders and classifying the subtype. This study was carried out on patients with different subtypes of to determine electrophysiological characteristics anatomical classification etiologies. included 20 compared 30 control participants. all by somatosensory evoked p...

The cortical actin network is a mesh of filaments distributed beneath the plasmalemma that dynamically reacts in response to stimuli. This dynamic filaments, together with motor myosin partners, adjusts tension, organizes membrane protein microdomains, remodels cell surface and drives vesicle motion order fine-tune exocytosis, endocytosis recycling secretory vesicles. In this review, we discuss...

KEY POINTS Theta-burst stimulation (TBS) applied via transcranial magnetic stimulation is able to modulate human cortical excitability. Here we investigated in a rat model how two different forms of TBS, intermittent (iTBS) and continuous (cTBS), affect sensory responses in rat barrel cortex. We found that iTBS but less cTBS promoted late (>18 ms) sensory response components while not affecting...