Goal-directed grasping and manipulation of objects are human skills that depend on
automatic sensory control in which predictive feed-forward mechanisms integrate …

The analysis of variability both within and between performers can reveal important
information about how athletes satisfy situational constraints. Transitory changes in the …

A central ability of the motor system is to achieve goals with great reliability, although never
with zero variability. It is argued that variability is reduced with practice by 3 separate means …

During the last century, knowledge of the mechanisms governing the functions of the central
nervous system increased rapidly as sophisticated physiological, neurochemical, and …

The purpose of this paper is to identify and discuss an alternative experimental
methodology, single-subject (SS) design. The primary premise for SS analyses forms the …

Manual control and tracking are fundamental to human factors and define a metric
framework which determines the limits of surgical precision. This review provides a brief …

Abstract Changes in the structure of motor variability during practicing a bimanual pointing
task were investigated using the framework of the uncontrolled manifold (UCM) hypothesis …

With the advent of recent measurement techniques, kinematic and kinetic measures
commonly are used to describe events over time. Often, the central and peripheral nature of …

We analyzed the adaptability of human thumb and index finger movement kinematics and
dynamics to variations of precision grip aperture and movement velocity. Six subjects …

We propose a new way to describe affordances for action. Previous characterizations of
affordances treat action possibilities as binary categories—either possible or impossible …