The reason for detecting more frequent SP1 latency abnormalities is that the SP1 response is mediated to the ipsilateral trigeminal nucleus through a mono- or oligosynaptic circuit and is therefore quantitatively more sensitive, while the SP2 response is elicited by a more complex circuit with a more caudally located
polysynaptic chain of interneurons.
Polysynaptic reflexes: the path is characterized by reflex arc of one or more interneurons.
2,12) It is generally believed to be a
polysynaptic reflex generated in the deep layers of the skin by activation of sweat glands via sudomotor sympathetic efferent fibers.
WBV has been shown to cause a tonic vibration reflex, which in turn leads to an increase in the recruitment of motor units through activation of muscle spindles and
polysynaptic pathways [34].
In fact, Morrison is one of the very few exponents of mainstream comics today who actually challenges the medium in its own terms, taking established tropes like word and thought balloons and exposing them to
polysynaptic analysis.
1997), and
polysynaptic inputs onto the LFS neurons from excitatory and inhibitory interneurons (Frost and Kandel, 1995).
l, 10) Field-potential recordings demonstrate that the H1 antagonist diphenhydramine decreases firing of
polysynaptic pathways in the lateral vestibular nucleus.
The barbiturates act throughout the central nervous system by directly inhibiting neuronal function at
polysynaptic and GABA-ergic sites.
In summary increase in the excitability of
polysynaptic spinal reflexes and startle responses was recorded, whereas other segmental and brain stem reflexes were normal.
The movement of the vibration plate during WBV exposure is postulated to activate both monosynaptic and
polysynaptic neural pathways adequate to generate a "tonic vibration reflex," similar to the stretch reflex.
All experiments were conducted in artificial seawater (ASW) containing high concentrations of divalent cations (Liao and Walters, 2002) to attenuate
polysynaptic activity.
Mechanical stimuli referring to muscle length are reflectively transferred through mono--and
polysynaptic pathways from the muscle spindles to the central nervous system (Cardinale and Bosco, 2003) for identification and appropriate response selection (Romaiguere et al.
