Results 251 to 260 of about 17,387 (307)

STRETCH REFLEXES OF THE NORMAL INFANT

Developmental Medicine & Child Neurology, 1986
Tendon-jerk reflexes were tested in normal, fullterm infants aged one to four days. EMGs were recorded from gastrocnemius-soleus and tibialis anterior muscles. Reflex-like EMGs were evoked when tapping sites which should not excite the muscles from which that activity is recorded--this included the simultaneous activation of antagonistic muscles by a ...
B M, Myklebust, G L, Gottlieb, G C, Agarwal   +2 more
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Eyelid Reflex Response to Stretch

Nature, 1962
AMONG the evidence of consciousness in the human subject, the position of the upper eyelid fulfils a significant role, and varies with the degree of attention1. It is of interest, therefore, to understand the mechanisms causing eyelid movement and particularly the relationship of local automatic reflexes to-this function.
D W, KENNARD, G L, SMYTH
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Functional Stretch Reflex (FSR) — a Cortical Reflex?

1976
Publisher Summary This chapter presents an experimental study to discuss the role of reflexes during functional activity. The time from initiation of the task to the resulting electromyographic activity is measured to determine the tendon reflex latency, the functional stretch reflex latency, and the voluntary response time in human lower limbs.
W, Freedman, S, Minassian, R, Herman
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Studies of the human stretch reflex

Journal of the Neurological Sciences, 1968
Abstract Measurements of the response to stretch in the triceps surae muscle of 12 normal human subjects are described. Three types of response were observed. One response indicated rheologic factors to be virtually the only determinants of tension, another response indicated rheologic factors predominant at slow speeds with reflex activity at high ...
H, Schaumburg, R, Herman
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Modulation of the functional stretch reflex by the segmental reflex pathway

Experimental Brain Research, 1976
Electromyographic (EMG) reflex responses were examined in the biceps muscle of awake Cebus monkeys trained to resist perturbations of a handle with their forearm. In particular responses at latencies of 15-20 msec (M1) and 40-55 msec (M2), thought to correspond to segmental and suprasegmental reflex pathways respectively, were studied.
T, Vilis, J D, Cooke
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Sensitivity of H-Reflexes and Stretch Reflexes to Presynaptic Inhibition in Humans

Journal of Neurophysiology, 1998
Morita, H., N. Petersen, L.O.D. Christensen, T. Sinkjær, and J. Nielsen. Sensitivity of H-reflexes and stretch reflexes to presynaptic inhibition in humans. J. Neurophysiol. 80: 610–620, 1998. The sensitivity of soleus H-reflexes, T-reflexes, and short-latency stretch reflexes (M1) to presynaptic inhibition evoked by a weak tap applied to the biceps ...
Morita, H, Petersen, Nicolas, Christensen, LOD, Sinkjær, Thomas, Nielsen, Jens Bo   +4 more
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Regulation of wrist stiffness by the stretch reflex

Journal of Biomechanics, 1989
In restoring the angular position after a displacement, the role of the muscle stretch reflex was investigated by comparing the restored angular torques and angular positions in the wrist under ischaemic and non-ischaemic conditions in normal human subjects.
T, Sinkjaer, R, Hayashi
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Modulation of the tonic stretch reflex by monoamines

European Journal of Pharmacology, 1979
The effects of L-DOPA and 5-HTP on the tonic stretch reflex (TSR) in the decerebrate rat were studied. L-DOPA facilitated the TSR in a dose-dependent manner. The facilitation of the TSR was blocked by pimozide. A sensitive electromygraphic (EMG) technique capable of recording single motor unit discharges was used.
J W, Commissiong, E M, Sedgwick
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Stretch Reflexes and Parkinsonian Tremor

1987
By coupling human limbs to a machine, which drives a single joint through sinusoidal flexion-extension movements, it is often possible to entrain the resting tremor of Parkinson's disease. Entrainment is most likely to occur when the imposed movement is large in amplitude and close in frequency to the spontaneous tremor.
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Development of the monosynaptic stretch reflex circuit

Current Opinion in Neurobiology, 2003
Significant advances have been made during the past few years in our understanding of how the spinal monosynaptic reflex develops. Transcription factors in the Neurogenin, Runt, ETS, and LIM families control sequential steps of the specification of various subtypes of dorsal root ganglia sensory neurons. The initiation of muscle spindle differentiation
Chen, H. -H., Hippenmeyer, S., Arber, S., Frank, E.   +3 more
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