It is known that the functional properties of an object can interact with perceptual, cognitive, and motor processes. Previously we have found that a between-subjects manipulation of judgment instructions resulted in different manipulability-related memory biases in an incidental memory test. To better understand this effect we recorded electroencephalography (EEG) while participants made judgm...

Parameters of the median nerve F wave and peripheral motor nerve conduction in 51 healthy male and female human subjects 67 to 89 years of age are described. F wave responses were elicited by stimulation of the nerve at the wrist. Motor nerve conduction velocity (MNCV) was determined for the forearm segment. Major results of this study of an older group of subjects demonstrate that: 1) the shor...

BACKGROUND It is unclear whether mental simulation without actual muscle contraction associated with actual motion can increase the excitability of the spinal neural function. OBJECTIVE To determine the best method for mental simulation without actual muscle contraction, we analyzed the F-wave of thenar muscles after stimulating the median nerve by motor imagery whilst holding the sensor of a...

Intercellular calcium waves can be observed in adult tissues, but whether they are instructive, permissive, or even required for behavior is predominantly unknown. In the nematode Caenorhabditis elegans, a periodic calcium spike in a pacemaker cell initiates a calcium wave in the intestine. The calcium wave is followed by three muscle contractions that comprise the defecation motor program. Nor...

Preload optimization is very important for ultrasonic motors’ design and application. In this paper, a novel method traveling-wave rotary motor proposed. Firstly, based on linear regression the analytic hierarchy process (AHP), mapping between drive characteristics, mechanical speed stability, preload of traveling-wave-type was established. Then, characteristic curves stalling torque, no-load s...

The ability to understand and predict the expected internal behaviour of a given solid-propellant rocket motor under transient conditions is important. Research towards predicting and quantifying undesirable transient axial combustion instability symptoms necessitates a comprehensive numerical model for internal ballistic simulation under dynamic flow and combustion conditions. A numerical mode...

Piezoelectric traveling wave rotary ultrasonic motors are motors that generate torque by using the friction force between a piezoelectric composite ring (or disk-shaped stator) and a metallic ring (or disk-shaped rotor) when a traveling wave is excited in the stator. The motor speed is proportional to the amplitude of the traveling wave and, in order to obtain large amplitudes, the stator is ex...

The matrix type multielectrodes have been proved to be useful for getting the information of motor unit (MU) properties (Monster et al., 1980; Reucher et al., 1987; Yamada et al., 1987; Masuda and Sadoyama, 1988; Kleine et al., 2000; Gazzoni et al., 2004). By this electromyography (EMG) technique, we can obtain many essential properties of MU that could not be obtained by conventional surface E...

A patient recovering from an acute encephalopathy demonstrated several ocular motor disturbances reflecting cerebellar and brainstem dysfunction. Two of these, macro square-wave jerks and macro saccadic oscillations, have never been reported in the same patient. The macro square-wave jerks disappeared with monocular viewing, a previously undescribed "inverse latent" characteristic.