Hindlimb Endpoint Forces Predict Movement Direction Evoked by Intraspinal Microstimulation in Cats
نویسندگان
چکیده
منابع مشابه
Modularity of motor output evoked by intraspinal microstimulation in cats.
We studied the forces produced at the cat's hindpaw by microstimulation of the ipsi- and contralateral lumbar spinal cord in spinal intact alpha-chloralose anesthetized (n = 3) or decerebrate (n = 3) animals. Isometric force and EMG responses were measured at 9-12 limb configurations, with the paw attached to a force transducer and with the hip and femur fixed. The active forces elicited at dif...
متن کاملNonlocomotor and locomotor hindlimb responses evoked by electrical microstimulation of the lumbar cord in spinalized cats.
As a preliminary step to using intraspinal microstimulation (ISMS) for rehabilitation purposes, the distribution of various types of hindlimb responses evoked by ISMS in spinal cats (T(13)) is described. The responses to ISMS applied through a single electrode was assessed, before and after an intravenous injection of clonidine (noradrenergic agonist), using kinematics and electromyographic rec...
متن کاملCharacteristics and mechanisms of locomotion induced by intraspinal microstimulation and dorsal root stimulation in spinal cats.
Intraspinal microstimulation (ISMS) through a single microelectrode can induce locomotion in cats spinalized at T(13) 1 wk before (untrained) or after 3-5 wk of treadmill training. Here we study the optimal parameters of ISMS and the characteristics of locomotion evoked. ISMS was applied in the dorsal region of segments L(3)-S(1) at different lateralities (midline to 2.5 mm) and after an intrav...
متن کاملMovement Synergies Elicited by Intraspinal Microstimulation Compared to Stimulation of Muscles, Nerves and Roots in the Cat
This study tested the idea that there are sets on neurons in the spinal cord responsible for generating elementary synergies (movement primitives) that could have implications for FES. Intraspinal, intramuscular, epineural and spinal root stimulation were compared in the anesthetized cat. Ventral root stimulation produced downward and backward movements of the leg while dorsal root stimulation ...
متن کاملAbbreviated title: Spinal modularity is preserved in chronic spinal cats.
Chronic spinal cats with neurotrophin-secreting fibroblast (NTF) transplants recover locomotor function (Boyce et al. 2007). To ascertain possible mechanisms, intraspinal microstimulation was used to examine the lumbar spinal cord motor output of four groups of chronic spinal cats: 1) untrained cats with unmodified-fibroblast graft (Opcontrol) or 2) NTF graft, and 3) locomotor-trained cats with...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Neural Systems and Rehabilitation Engineering
سال: 2009
ISSN: 1534-4320,1558-0210
DOI: 10.1109/tnsre.2009.2023295