Prediction of upper limb muscle activity from motor cortical discharge during reaching
نویسندگان
چکیده
منابع مشابه
Prediction of upper limb muscle activity from motor cortical discharge during reaching.
Movement representation by the motor cortex (M1) has been a theoretical interest for many years, but in the past several years it has become a more practical question, with the advent of the brain-machine interface. An increasing number of groups have demonstrated the ability to predict a variety of kinematic signals on the basis of M1 recordings and to use these predictions to control the move...
متن کاملOn the relationship between joint angular velocity and motor cortical discharge during reaching.
Single-unit activity in area M1 was recorded in awake, behaving monkeys during a three-dimensional (3D) reaching task performed in a virtual reality environment. This study compares motor cortical discharge rate to both the hand's velocity and the arm's joint angular velocities. Hand velocity is considered a parameter of extrinsic space because it is measured in the Cartesian coordinate system ...
متن کاملMotor cortical representation of speed and direction during reaching.
The motor cortical substrate associated with reaching was studied as monkeys moved their hands from a central position to one of eight targets spaced around a circle. Single-cell activity patterns were recorded in the proximal arm area of motor cortex during the task. In addition to the well-studied average directional selectivity ("preferred direction") of single-cell activity, we also found t...
متن کاملMotor cortical representation of hand translation and rotation during reaching.
Previous studies have shown that hand translation is well represented by neuronal activity in the proximal arm area of primary motor cortex (M1). However, little is known about cortical representation of hand rotation in M1. In this study, single-unit activity was recorded from monkeys while they performed a "center-out with rotation" task. When reaching for a target, subjects had to match four...
متن کاملMotor cortical representation of position and velocity during reaching.
This study examines motor cortical representation of hand position and its relationship to the representation of hand velocity during reaching movements. In all, 978 motor cortical neurons were recorded from the proximal arm area of rostral motor cortex. The results demonstrate that position and velocity are simultaneously encoded by single motor cortical neurons in an additive fashion and that...
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ژورنال
عنوان ژورنال: Journal of Neural Engineering
سال: 2007
ISSN: 1741-2560,1741-2552
DOI: 10.1088/1741-2560/4/4/003