The pulse shape deformation of 80 ps Gaussian input transmitted through a Fabry-P6rot has been determined experimentally and theoretically as a function of the mirror spacing. The effect of mirror surface imperfections is discussed and it is shown that for not too large imperfections there is a strong influence on the transmitted pulse energy whereas the transmitted pulse shape remains almost u...

Mirror neurons are a specific type of visuomotor neuron that discharge both when a monkey executes a motor act and when it observes a similar motor act performed by another individual. In this article, we review first the basic properties of these neurons. We then describe visual features recently investigated which indicate that, besides encoding the goal of motor acts, mirror neurons are modu...

Spike-timing-dependent plasticity is considered the neurophysiological basis of Hebbian learning and has been shown to be sensitive to both contingency and contiguity between pre- and postsynaptic activity. Here, we will examine how applying this Hebbian learning rule to a system of interconnected neurons in the presence of direct or indirect re-afference (e.g. seeing/hearing one's own actions)...

This paper is a progress report on work surrounding the Strominger-Yau-Zaslow mirror symmetry conjecture [25]. Roughly put, this conjecture suggests the following program for attacking an appropriate form of the mirror conjecture. Let X be a Calabi-Yau n-fold, with a large complex structure limit point p in a compactification of the complex moduli space of X . One expects mirrors of X to be ass...

Our actions, and those of others, are often partly obscured from view. This complicates the sensory inputs that guide motor actions. In this issue of Neuron, Umilità and colleagues demonstrate that "mirror neurons" in ventral premotor cortex respond when monkeys observe hidden, but inferred, actions.

Both motor imagery and mirror training have been used in motor rehabilitation settings to promote skill learning and plasticity. As motor imagery and mirror training are suggested to be closely linked, it was hypothesized that mirror training augmented by motor imagery would increase corticospinal excitability (CSE) significantly compared to mirror training alone. Forty-four participants were s...

We introduce mirror symmetric circular planar electrical networks as the mirror symmetric subset of circular planar electrical networks studied by Curtis-Ingerman-Morrow [CIM] and Colin de Verdière-Gitler-Vertigan [dVGV]. These mirror symmetric networks can be viewed as type B generalization of circular planar electrical networks. We show that most of the properties of circular planar electrica...

A current mirror (CM) based on self cascode MOSFETs low voltage analog and mixed mode structures has been proposed. The proposed CM has high output impedance and can operate at 0.5 V. P-Spice simulations confirm the high performance of this CM with a bandwidth of 6.0 GHz at input current of 100 μA. Keywords—Current Mirrors, Composite Cascode Structure, Current Source/Sink.