Neuron-Glia Interactions of Rat Hippocampal Cells in vitro: Glial
... E 18 and plated on a culture surface treated with polylysine, the neurons were randomly distributed on the culture surface and did not preferentially associate with glial cells or their processes. At E20, the time when differentiated glial forms resembling those observed in vivo are present in the c ...
... E 18 and plated on a culture surface treated with polylysine, the neurons were randomly distributed on the culture surface and did not preferentially associate with glial cells or their processes. At E20, the time when differentiated glial forms resembling those observed in vivo are present in the c ...
Spatial Representation and Navigation in a Bio
... orientations were updated using integrated odometer signals, but the place cell activity depended only on the visual input. Burgess et al. [21, 22] described a robotic implementation of an earlier neurophysiological model of the rat hippocampus [23]. Some place cells were shown to fire at a relativel ...
... orientations were updated using integrated odometer signals, but the place cell activity depended only on the visual input. Burgess et al. [21, 22] described a robotic implementation of an earlier neurophysiological model of the rat hippocampus [23]. Some place cells were shown to fire at a relativel ...
Department of Electrical and Computer Engineering University of
... addition of currents that all follow the same basic rules. Let's now investigate just a few of these different neuronal ionic currents. First, imagine that we have just read Hodgkin and Huxley's series of articles in the Journal of Physiology and are quite impressed, but at the same time are wonderi ...
... addition of currents that all follow the same basic rules. Let's now investigate just a few of these different neuronal ionic currents. First, imagine that we have just read Hodgkin and Huxley's series of articles in the Journal of Physiology and are quite impressed, but at the same time are wonderi ...
Reprint () - Centre de recherche CERVO
... computed for each neuron. Cells were categorized according to the number of deflection angles (0 –7) that elicited a response that was statistically smaller than the maximum angle response (one-tailed t test; p ⬍ 0.05). Category 0 represents the least tuned cells, and category 7 represents the most. ...
... computed for each neuron. Cells were categorized according to the number of deflection angles (0 –7) that elicited a response that was statistically smaller than the maximum angle response (one-tailed t test; p ⬍ 0.05). Category 0 represents the least tuned cells, and category 7 represents the most. ...
Time cited
... spinal cord, using confocal microscopy. We demonstrate that GDNF is well associated with nonpeptidergic pain pathway and that GDNF could possibly be anterogradely transported from DRG neurons to superficial spinal cord dorsal horn. We also studied the dynamic changes of GDNF expression in rats durin ...
... spinal cord, using confocal microscopy. We demonstrate that GDNF is well associated with nonpeptidergic pain pathway and that GDNF could possibly be anterogradely transported from DRG neurons to superficial spinal cord dorsal horn. We also studied the dynamic changes of GDNF expression in rats durin ...
Neuronal Migration
... The major sources of neurons that undergo tangential migration are the ventral telencephalon and the upper rhombic lip in the developing cerebellum. The ventral telencephalon contains three proliferating zones, named the ganglionic eminence. Neuronal precursor cells from the ventricular zone of the ...
... The major sources of neurons that undergo tangential migration are the ventral telencephalon and the upper rhombic lip in the developing cerebellum. The ventral telencephalon contains three proliferating zones, named the ganglionic eminence. Neuronal precursor cells from the ventricular zone of the ...
PDF - Cogprints
... determined by the length of pathway or circuits. Specifically, since lack of temporal summarization, a motor neuron’s launching time is approximately constant for a specific input. Therefore the time of a signal passing through a circuit is proportional to its length. As results, circuits composed o ...
... determined by the length of pathway or circuits. Specifically, since lack of temporal summarization, a motor neuron’s launching time is approximately constant for a specific input. Therefore the time of a signal passing through a circuit is proportional to its length. As results, circuits composed o ...
Hoxd1
... of brachial motor neurons extend their axons towards their target muscles. En route, they encounter glial-cell-line-derived ne... ...
... of brachial motor neurons extend their axons towards their target muscles. En route, they encounter glial-cell-line-derived ne... ...
Monday, June 20, 2005
... 1.4 Monitoring the dynamics of neural functions modulated by intracellular ClAtsuo Fukuda Hamamatsu University School of Medicine, Japan One of recent topics in neuroscience is that GABA necessarily acts excitatory (Cl - efflux) in immature brain, in contrast to inhibitory (Cl- influx) in normal ad ...
... 1.4 Monitoring the dynamics of neural functions modulated by intracellular ClAtsuo Fukuda Hamamatsu University School of Medicine, Japan One of recent topics in neuroscience is that GABA necessarily acts excitatory (Cl - efflux) in immature brain, in contrast to inhibitory (Cl- influx) in normal ad ...
Physiology of the mormyrid ELL - Journal of Experimental Biology
... including medium ganglion (MG) cells. Large ganglion (LG) cells and large fusiform (LF) cells were recorded in the ganglionic cell layer and in the plexiform or granule layers, respectively (Grant et al., 1996; Meek et al., 1996; Han et al., 1999). The efferent axons of the LG cells and the LF cells ...
... including medium ganglion (MG) cells. Large ganglion (LG) cells and large fusiform (LF) cells were recorded in the ganglionic cell layer and in the plexiform or granule layers, respectively (Grant et al., 1996; Meek et al., 1996; Han et al., 1999). The efferent axons of the LG cells and the LF cells ...
Electrochemistry
... reduce the Cu2+ ions, thus effectively stopping the reaction after only a minute amount has taken place. In order to sustain the cell reaction, the charge carried by the electrons through the external circuit must be accompanied by a compensating transport of ions between the two cells. This means t ...
... reduce the Cu2+ ions, thus effectively stopping the reaction after only a minute amount has taken place. In order to sustain the cell reaction, the charge carried by the electrons through the external circuit must be accompanied by a compensating transport of ions between the two cells. This means t ...
Hebbian Learning with Winner Take All for
... Artificial Neural Network). The software was used to identify character sets consisting of 48 characters and with various levels of resolution and network sizes. The code correctly identified all the characters when adequate training was used in the network. The training of a problem size with 2 bil ...
... Artificial Neural Network). The software was used to identify character sets consisting of 48 characters and with various levels of resolution and network sizes. The code correctly identified all the characters when adequate training was used in the network. The training of a problem size with 2 bil ...
CHARLES UNIVERSITY
... Aim: The aim of the thesis is to introduce nitric oxide (NO) and its role in physiology and pathophysiolgy of central nervous system (CNS), with the intention of epileptiform activity in the nervous tissue. Our research was realized on rat hippocampal slices in vitro and it compares the experimental ...
... Aim: The aim of the thesis is to introduce nitric oxide (NO) and its role in physiology and pathophysiolgy of central nervous system (CNS), with the intention of epileptiform activity in the nervous tissue. Our research was realized on rat hippocampal slices in vitro and it compares the experimental ...
Neurophysiology: Serotonin`s many meanings elude simple theories
... inhibition) and dopamine (putatively linked with reward and activation) playing opposing roles (Deakin and Graeff, 1991). However, there is both electrophysiological and optogenetic evidence that serotonin is involved in many other roles, such as rhythmic motor activity (Ranade and Mainen, 2009). Th ...
... inhibition) and dopamine (putatively linked with reward and activation) playing opposing roles (Deakin and Graeff, 1991). However, there is both electrophysiological and optogenetic evidence that serotonin is involved in many other roles, such as rhythmic motor activity (Ranade and Mainen, 2009). Th ...
13.2 part 2
... The gap between two neurons or a neuron and an effector is known as a synapse. The neuron carrying the impulse into the synapse is called the presynaptic neuron. The neuron leaving the synapse is called the postsynaptic neuron. The neurotransmitters that carry the impulse across the synapse are cont ...
... The gap between two neurons or a neuron and an effector is known as a synapse. The neuron carrying the impulse into the synapse is called the presynaptic neuron. The neuron leaving the synapse is called the postsynaptic neuron. The neurotransmitters that carry the impulse across the synapse are cont ...
Modelling the Grid-like Encoding of Visual Space
... mechanisms that directly integrate information on the velocity and direction of an animal into a periodic representation of the animal’s location (Kerdels, 2016). As a consequence, the particular models do not generalize well, i.e., they can not be used to describe or investigate the behavior of neu ...
... mechanisms that directly integrate information on the velocity and direction of an animal into a periodic representation of the animal’s location (Kerdels, 2016). As a consequence, the particular models do not generalize well, i.e., they can not be used to describe or investigate the behavior of neu ...
Direct Inhibition Evoked by Whisker Stimulation in Somatic Sensory
... of neurons without prior excitation (I-only inhibition). Reconstruction of the recording sites indicates that I-only inhibition occurs most frequently when the recording site is clearly in the septum or at the barrel-septum junction. The same cells that respond with I-only inhibition to one whisker ...
... of neurons without prior excitation (I-only inhibition). Reconstruction of the recording sites indicates that I-only inhibition occurs most frequently when the recording site is clearly in the septum or at the barrel-septum junction. The same cells that respond with I-only inhibition to one whisker ...
Interfacing Real-Time Spiking I/O with the SpiNNaker neuromimetic
... Artificial spiking neural network (ANN) simulation has been widely investigated in the recent past, with many attempts being made to simulate networks in real-time and with increasing biological realism. ANNs have been widely used to interface with sensors, revealing features and details which are t ...
... Artificial spiking neural network (ANN) simulation has been widely investigated in the recent past, with many attempts being made to simulate networks in real-time and with increasing biological realism. ANNs have been widely used to interface with sensors, revealing features and details which are t ...
Electroencephalography Student Protocol
... 4. Remove any jewelry from the volunteer’s face, ears, and neck. Use a ballpoint pen to mark a small cross on the skin on the back of the head, forehead, and temple. Use Figure 1 as a guide. Abrade the skin with Abrasive Gel or Pad. This is important as abrasion helps reduce the skin’s resistance. 5 ...
... 4. Remove any jewelry from the volunteer’s face, ears, and neck. Use a ballpoint pen to mark a small cross on the skin on the back of the head, forehead, and temple. Use Figure 1 as a guide. Abrade the skin with Abrasive Gel or Pad. This is important as abrasion helps reduce the skin’s resistance. 5 ...
Unit 12 ~ Learning Guide Name
... ____________________________ wrap around the nerve fibers when they are myelinated. This results in the impulse skipping from node to node. In myelinated axons and dendrites, the impulse can travel up to 200m/s. In unmyelinated fibers, the impulse can be as slow as 0.5 m/s. This difference in speed ...
... ____________________________ wrap around the nerve fibers when they are myelinated. This results in the impulse skipping from node to node. In myelinated axons and dendrites, the impulse can travel up to 200m/s. In unmyelinated fibers, the impulse can be as slow as 0.5 m/s. This difference in speed ...
Information processes in neurons
... vidual neurons, the sub-cellular level, membranes and the underlying biochemistry. Traditionally the community around artificial neuronal networks does not use a detailed description of neurons and is satisfied with abstract models not much different from the original McCulloch-Pitts neuron. This ab ...
... vidual neurons, the sub-cellular level, membranes and the underlying biochemistry. Traditionally the community around artificial neuronal networks does not use a detailed description of neurons and is satisfied with abstract models not much different from the original McCulloch-Pitts neuron. This ab ...
Increased leak conductance alters ISI variability.
... Interspike Interval Variability Inter-spike Interval Variability of neuronal spike train – important indicator of the type of processing a neuron performs on its synaptic inputs Simplest measure – Coefficient of Variability ...
... Interspike Interval Variability Inter-spike Interval Variability of neuronal spike train – important indicator of the type of processing a neuron performs on its synaptic inputs Simplest measure – Coefficient of Variability ...
pdf 2.5M
... From the mid-1980s onward, different groups reported the discovery of chaotic electrical signals in the brain, namely human [1] and simian [2]. This started a long-lasting dispute concerning the true chaotic nature of such signals, as well as much speculation regarding the possible roles of chaos in ...
... From the mid-1980s onward, different groups reported the discovery of chaotic electrical signals in the brain, namely human [1] and simian [2]. This started a long-lasting dispute concerning the true chaotic nature of such signals, as well as much speculation regarding the possible roles of chaos in ...
The relative advantages of sparse versus distributed encoding for
... arbitrary real values (i.e. negative as well as positive), one could find up to N mutually orthogonal vectors of length N . As each component V,, however, in the brain represents a firing rate (typically in the range between 0 and 100 spikes s-’), it is constrained to be zero or positive, and this f ...
... arbitrary real values (i.e. negative as well as positive), one could find up to N mutually orthogonal vectors of length N . As each component V,, however, in the brain represents a firing rate (typically in the range between 0 and 100 spikes s-’), it is constrained to be zero or positive, and this f ...
adult rat spinal cord culture on an organosilane surface in
... clamp and current clamp experiments were performed with a Multiclamp 700A (Axon, Union City, CA) amplifier. Signals were filtered at 3 kHz and digitized at 20 kHz with an Axon Digidata 1322A interface. Data recording and analysis was performed with pClamp 8 (Axon) software. Sodium and potassium curr ...
... clamp and current clamp experiments were performed with a Multiclamp 700A (Axon, Union City, CA) amplifier. Signals were filtered at 3 kHz and digitized at 20 kHz with an Axon Digidata 1322A interface. Data recording and analysis was performed with pClamp 8 (Axon) software. Sodium and potassium curr ...