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Mechanisms of axon polarization in pyramidal neurons
Molecular and Cellular Neuroscience, 2020Neurons are highly polarized cells that have specialized regions for synaptic input, the dendrites, and synaptic output, the axons. This polarity is critical for appropriate neural circuit formation and function. One of the central gaps in our knowledge is understanding how developing neurons initiate axon polarity.
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Simulations of Intrinsically Bursting Neocortical Pyramidal Neurons
Neural Computation, 1994Neocortical layer 5 intrinsically bursting (IB) pyramidal neurons were simulated using compartment model methods. Morphological data as well as target neurophysiological responses were taken from a series of published studies on the same set of rat visual cortex pyramidal neurons (Mason, A. and Larkman, A. J., 1990. J. Neurosci.
Paul A. Rhodes, Charles M. Gray
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Insulin inhibits pyramidal neurons in hippocampal slices
Brain Research, 1984Recent studies have confirmed the presence of insulin receptors in the rat brain although their function has still not been well defined. The present study explores the possibility that insulin receptors in the brain can alter or contribute to central neurotransmission. Insulin caused a dose-dependent inhibition of hippocampal pyramidal neurons.
Palovcik, Reinhard A. +3 more
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Development of BK channels in neocortical pyramidal neurons
Journal of Neurophysiology, 19961. Postnatal development of a large conductance Ca(2+)-activated K+ channel (BK channel) was investigated in neocortical infragranular pyramidal neurons with inside-out and outside-out patchclamp configurations. Neurons were acutely isolated from slices of 1- to 28-day-old rats (P1-P28) by using a vibrating glass probe after preincubation with low ...
J, Kang, J R, Huguenard, D A, Prince
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The Postmortem Changes of Pyramidal Neurons in the Hippocampus of Rats
Psychiatry and Clinical Neurosciences, 1976Summary The postmortem changes (0.5, 1, 2, 3, 5, 7 and 10 hours) in pyramidal neurons of the area CAI of the hippocampus of rats have been studied with the light and electron microscope. 1. (light microscopy) In the pyramidal neurons that have undergone 0.5- and 1-hour postmortem autolysis (postmortem autolysis for 0.5 and 1 hours), no ...
H, Shibayama, J, Kitoh
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Influence of molecular layer on pyramidal tract neurons
Experimental Neurology, 1985Activity in layer I increases the excitability of pyramidal tract (PT) neurons, the effect being stronger on slow than on fast PT neurons. Extracellular recordings were made from lateral postcruciate cortex of domestic cats, using antidromic activation from medullary pyramid to identify and classify PT neurons. Their responses to contralateral forepaw (
Z Q, Chen, A L, Towe
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Effects of Seizures on Single Pyramidal Tract Neurons
Archives of Neurology, 1964Previous analyses of seizure activity have concentrated either on the activity of large populations of cortical neurons 1 or the activities of single neurons identified by their depth beneath the surface of the cortex. 2-5 Since different neurons within a complex laminar system such as the cortex may be expected to behave in different and even opposite
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Effects of phenytoin on pyramidal neurons of the rat hippocampus
Brain Research, 1981The effects of phenytoin (35 micrograms/ml) on membrane properties and inhibitory postsynaptic potential (IPSPs) in CA1 and CA3 pyramidal neurons of the in vitro rat hippocampus were examined. No significant change was observed on input resistance or resting membrane potential.
N, Hershkowitz, G F, Ayala
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Immunolocalization of BK channels in hippocampal pyramidal neurons
European Journal of Neuroscience, 2006AbstractNeurons are highly specialized cells in which the integration and processing of electrical signals critically depends on the precise localization of ion channels. For large‐conductance Ca2+‐ activated K+ (BK) channels, targeting to presynaptic membranes in hippocampal pyramidal cells was reported; however, functional evidence also suggests a ...
Claudia A, Sailer +8 more
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The Physiology and Computation of Pyramidal Neurons
2016A variety of neural signals have been measured as correlates to consciousness. In particular, late current sinks in layer 1, distributed activity across the cortex, and feedback processing have all been implicated. What are the physiological underpinnings of these signals? What computational role do they play in the brain?
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