Results 101 to 110 of about 15,396 (149)

Adaptive plasticity in the spinal stretch reflex

Brain Research, 1983
Monkeys can change the amplitude of the spinal stretch reflex without change in initial alpha motor neuron tone, as measured by EMG, or in initial muscle length. Change is apparent in 5-10 days, continues to develop over weeks, and persists during inactive periods.
Jonathan R Wolpaw, Richard F Seegal
exaly   +3 more sources

Quantitation of the stretch reflex

Acta Neurologica Scandinavica, 1989
Egon Toft, T Sinkjaer
exaly   +2 more sources

Stretch reflex blepharospasm

Neurology, 1985
We studied a patient with blepharospasm provoked by stretching the orbicularis oculi muscles. With the eyes closed, EMG of the orbicularis oculi at rest revealed spontaneous rhythmic muscle activity that was not visible. When she tried to open her eyes, repetitive jerking blepharoclonus and tonic blepharospasm rendered her functionally blind.
J A, Obeso, J, Artieda, C D, Marsden
openaire   +2 more sources

Studies of the human stretch reflex

Muscle & Nerve, 2000
We recorded the late electromyographic (EMG) responses to predictable and unpredictable stretches of the wrist flexor and extensor muscles during ballistic movement or isometric contractions. We simultaneously recorded the accompanying cerebral responses.
M J, Aminoff, D S, Goodin
openaire   +2 more sources

Jaw stretch reflexes in children

Experimental Brain Research, 2005
The substantial morphological transformations that occur during human development present the nervous system with a considerable challenge in terms of motor control. Variability of skilled motor performance is a hallmark of a developing system. In adults, the jaw stretch reflex contributes to the functional stability of the jaw.
Donald S, Finan, Anne, Smith
openaire   +2 more sources

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
openaire   +2 more sources

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
openaire   +2 more sources

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
openaire   +2 more sources

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
openaire   +2 more sources