Thus, the lower motor neurons are the "final common pathway" to coordinate voluntary movement because the lower motor neurons receive information from both UMNs and sensory neurons
from the periphery.
Key words: Sensory neurons
, DRG subpopulations, Frog neurons, Cytoplasmic granules.
To examine the distal axon anatomy of putative sensory neuron
homologs and to confirm a sensory-neuron-like response to nerve stimulation, action potentials were elicited with an electrical current (5-10 msec, 10-50 V, capacity coupled, using a stimulus isolation unit) passed through a suction electrode of a diameter appropriate to make a tight seal on the largest posterior-projecting peripheral nerve of the pedal ganglion (most likely homologous to nerve P9 in Aplysia).
More than a century ago, primary sensory neurons
were characterized as pseudo-unipolar cells.
Our results are consistent with findings from other studies concluding that molluscan sensory neurons
use glutamate as their neurotransmitter, including the marine mollusc Aplysia (Dale and Kandel, 1993; Levenson et al.
Fine-structural and electrophysiological studies show that many of these types of sensilla are bimodal chemo-mechanoreceptors, and the respective inputs from their associated sensory neurons
are presumably used in the detection of food within the substrate by the walking leg dactyls and by contact of the antennae and antennular flagella with the substrate, and during mastication and ingestion of food.
This research, ongoing at the PVA/EPVA Research Center Sensory Neuron
Laboratory, is moving along rapidly.
This facilitation is partially due to the enhanced release of the transmitter glutamate by the sensory neuron
onto its follower cells and is accompanied by an increase in excitability of the sensory neuron
attributable to the depression of specific sets of potassium channels (Klein et al.
We found that blockade of protein synthesis at either the sensory neuron
soma or distal synaptic sites completely blocked the LTF and LTSSF that are normally produced by synaptic application of 5-HT.
The scientists studying how the sense of smell changes as people age found that olfactory sensory neurons
in those 60 and over showed an unexpected response to odour that made it more difficult to distinguish specific smells.
Finally, We will express the spectrally distinct ca++ indicators gcamp6 and rcamp2 in pc neurons and in olfactory sensory neurons
, Respectively, And use 2-photon microscopy to analyze the spatio-temporal relationship between feedforward and feedback inputs in the ob.
Additions to this treatment may include exoskeletal mobility or virtual reality visualization to provide additional stimulation in the hoped for regeneration of motor and sensory neurons