Visual motion is sensed by low-level (energy-based) and high-level (feature-based) mechanisms. Our interest is in the motion detectors underlying the initial ocular following responses (OFR) that are elicited at ultrashort latencies by sudden motions of large images. OFR were elicited in humans by applying horizontal motion to vertical square-wave gratings lacking the fundamental. In the freque...

We describe the Harmonic Motion Description Protocol (HMDP), that can serve as a part in tools for rapid prototyping of behaviors in a hybrid simulation real robot environment. In particular, we are focusing on the RoboCup 3D Soccer Simulation League server that is currently evolving rapidly, and becomes a more and more useful open source, general purpose simulation environment for physical Mul...

Several studies have indicated a key role for dorsal stream processing in lexical decoding. To examine this relationship further, performance on orthographic and phonological reading tests was compared with both steady-state visual evoked potentials and a putative behavioral measure of dorsal stream processing, coherent motion detection. Frequency analysis of the visual evoked potential data sh...

A flexible linker region between three fragments allows antibodies to adjust their binding sites to an antigen or receptor. Using Neutron Spin Echo Spectroscopy we observed fragment motion on a timescale of 7 ns with motional amplitudes of about 1 nm relative to each other. The mechanistic complexity of the linker region can be described by a spring model with Brownian motion of the fragments i...

The quantization of a constant of motion for the harmonic oscillator with a time-explicitly depending external force is carried out. This quantization approach is compared with the normal Hamiltonian quantization approach. Numerical results show that there are qualitative and quantitative differences for both approaches, suggesting that the quantization of this constant of motion may be verifie...

The many-body wave function of a system of interacting particles confined by a time-dependent harmonic potential and perturbed by a time-dependent spatially homogeneous electric field is derived via the Feynman path-integral method. The wave function is comprised of a phase factor times the solution to the unperturbed time-dependent Schrödinger equation with the latter being translated by a tim...

Applying a technique developed recently [1,2] for an harmonic oscillator coupled to a bath of harmonic oscillators, we present an exact solution for the tunneling problem in an Ohmic dissipative system with inverted harmonic potential. The result shows that while the dissipation tends to suppress the tunneling, the Brownian motion tends to enhance the tunneling. Whether the tunneling rate incre...

This paper presents a robot motion planning method, called PHM, that uses a random sampling scheme together with a potential-field approach based on harmonic functions. The combination of both results in an efficient path planner that is both resolution and probabilistic complete. On one hand, random sampling allows the use of the harmonic functions approach without the explicit knowledge of th...

Brownian motion of the hairs (stereocilia) of amphibian hair cells has been shown in experiments to be in the range of some nm. Our models of the Brownian motion of coupled harmonic oscillators with mechanical properties of stereocilia lead to similar displacements. Computer simulation shows that stochastic fluctuations enhance the encoding of low level acoustic signals. Stochastic resonance lo...

Abstract We prove a number of results relating exit times planar Brownian motion with the geometric properties domains in question. Included are proofs conformal invariance moduli rectangles and annuli using motion; similarly probabilistic some recent Karafyllia on harmonic measure starlike domains; examples their complements which simultaneously large when measured by moments time motion, smal...