Detecting Action Potentials in Neuronal Populations with Calcium
... the distribution of information (5). To properly distinguish between these, or other, types of circuit models, it is necessary to characterize the circuit dynamics by reconstructing the activity of the network (6). A direct approach to reveal the circuit dynamics is the use of multielectrode recordi ...
... the distribution of information (5). To properly distinguish between these, or other, types of circuit models, it is necessary to characterize the circuit dynamics by reconstructing the activity of the network (6). A direct approach to reveal the circuit dynamics is the use of multielectrode recordi ...
Physiological Psychology - II Sem
... types of receptors, it is possible for a neuron to have excitatory effects on one set of target cells, inhibitory effects on others, and complex modulatory effects on others still. Nevertheless, it happens that the two most widely used neurotransmitters, glutamate and GABA, each have largely consist ...
... types of receptors, it is possible for a neuron to have excitatory effects on one set of target cells, inhibitory effects on others, and complex modulatory effects on others still. Nevertheless, it happens that the two most widely used neurotransmitters, glutamate and GABA, each have largely consist ...
Ectodermal Placodes: Contributions to the
... for example, are characterized by unique production of GnRH and olfactory marker protein. Placode morphogenesis occurs by invagination and/ or delamination to form sensory epithelia, sensory neuroblasts and in some cases, migratory receptor primordia {e.g., lateral line receptors). Specification of ...
... for example, are characterized by unique production of GnRH and olfactory marker protein. Placode morphogenesis occurs by invagination and/ or delamination to form sensory epithelia, sensory neuroblasts and in some cases, migratory receptor primordia {e.g., lateral line receptors). Specification of ...
Phase Precession and Variable Spatial Scaling in a Periodic
... proper (Jung et al., 1994; Maurer et al., 2005), the size of grid fields (and the spacing between fields) increases in cells recorded more ventrally in the MEC (Brun et al., 2008). In a CANN model, the spatial period of grid fields is a function of the mapping of the speed of the rat onto the speed of ...
... proper (Jung et al., 1994; Maurer et al., 2005), the size of grid fields (and the spacing between fields) increases in cells recorded more ventrally in the MEC (Brun et al., 2008). In a CANN model, the spatial period of grid fields is a function of the mapping of the speed of the rat onto the speed of ...
Hilar mossy cells of the dentate gyrus: a historical
... Might other neurons besides mossy cells contribute to the C/A pathway? Did some mossy cells in fact have small cell bodies? Additional studies supported both ideas. Regarding the heterogeneity of neurons contributing to the C/A pathway, it became clear that other hilar neurons than mossy cells have ...
... Might other neurons besides mossy cells contribute to the C/A pathway? Did some mossy cells in fact have small cell bodies? Additional studies supported both ideas. Regarding the heterogeneity of neurons contributing to the C/A pathway, it became clear that other hilar neurons than mossy cells have ...
Motor Cortical Networks for Skilled Movements Have Reaching
... signal. The same software also allowed the identification of spike activity in each channel using threshold detectors, window discriminators, and spike waveform analysis. Frameby-frame video analysis was used to identify five different stages of task performance within these 3-second epochs; “backgro ...
... signal. The same software also allowed the identification of spike activity in each channel using threshold detectors, window discriminators, and spike waveform analysis. Frameby-frame video analysis was used to identify five different stages of task performance within these 3-second epochs; “backgro ...
Distinct Representations and Theta Dynamics in Dorsal and Ventral
... cross-correlation functions as additional separation tools (http://klusters.sourceforge.net; http://neuroscope.sourceforge.net) (Hazan et al., 2006). Only clusters with clear boundaries in at least one of the projections were included in the database (supplemental Fig. 1, available at www.jneurosci. ...
... cross-correlation functions as additional separation tools (http://klusters.sourceforge.net; http://neuroscope.sourceforge.net) (Hazan et al., 2006). Only clusters with clear boundaries in at least one of the projections were included in the database (supplemental Fig. 1, available at www.jneurosci. ...
Mietzsch U, McKenna J 3rd, Reith RM, Way SW, Gambello MJ. Comparative analysis of Tsc1 and Tsc2 single and double radial glial cell mutants. J Comp Neurol. 2013 Nov. 521(16):3817-31.
... NIH/3T3 cells using this antibody has shown a specific binding profile when compared to a nonspecific negative control (manufacturer provided). The mouse monoclonal Olig2 antibody (Millipore, Billerica, MA; #MABN50) allowed visualization of a distinct 37 kDa band on western blot from mouse brain lys ...
... NIH/3T3 cells using this antibody has shown a specific binding profile when compared to a nonspecific negative control (manufacturer provided). The mouse monoclonal Olig2 antibody (Millipore, Billerica, MA; #MABN50) allowed visualization of a distinct 37 kDa band on western blot from mouse brain lys ...
Golgi: a life in science - Oxford Academic
... electron microscope many years later that his views could finally be proven. Nerves touch one another, they do not fuse. Golgi was angered and hurt at the widespread abandonment of the reticular theory and acceptance of the neuron doctrine by most of his fellow scientists. He made defence of the ret ...
... electron microscope many years later that his views could finally be proven. Nerves touch one another, they do not fuse. Golgi was angered and hurt at the widespread abandonment of the reticular theory and acceptance of the neuron doctrine by most of his fellow scientists. He made defence of the ret ...
Can`t live without them, can live with them: roles of caspases during
... Loss of organelles and enucleation during terminal lens fiber cell differentiation The role of vertebrate lens is to focus light on the retina. Lens fiber cells must therefore turn transparent with minimized potential light scatter from their cytoplasmic organelles. During embryonic development, org ...
... Loss of organelles and enucleation during terminal lens fiber cell differentiation The role of vertebrate lens is to focus light on the retina. Lens fiber cells must therefore turn transparent with minimized potential light scatter from their cytoplasmic organelles. During embryonic development, org ...
The Timing of Response Onset and Offset in Macaque
... For LGN cells, we ran binary sequences with three types of P and A stimuli: spots, annuli, and gratings. (1) Spots: P was a disk of maximum or minimum luminance (for ON or OFF cells, respectively) presented on a gray background and confined to the central region of the RF determined from the reverse ...
... For LGN cells, we ran binary sequences with three types of P and A stimuli: spots, annuli, and gratings. (1) Spots: P was a disk of maximum or minimum luminance (for ON or OFF cells, respectively) presented on a gray background and confined to the central region of the RF determined from the reverse ...
HTM Neuron paper 12-1
... Ca2+ spike will depolarize the soma, but typically not enough to generate a somatic action potential (Antic et al., 2010). The interaction between apical Ca2+ spikes, basal NMDA spikes, and somatic action potentials is an area of ongoing research (Larkum, 2013), but we can say that under many condit ...
... Ca2+ spike will depolarize the soma, but typically not enough to generate a somatic action potential (Antic et al., 2010). The interaction between apical Ca2+ spikes, basal NMDA spikes, and somatic action potentials is an area of ongoing research (Larkum, 2013), but we can say that under many condit ...
cerebral and gastric histamine system is altered after portocaval shunt
... in response to feeding or injection of pentagastrin and insulin. Portocavally shunted rats are a suitable animal model of hepatic encephalopathy (HE) (5) and in our studies on neurochemical alterations in the CNS triggered by chronic liver dysfunction we have found that an enhanced histamine synthes ...
... in response to feeding or injection of pentagastrin and insulin. Portocavally shunted rats are a suitable animal model of hepatic encephalopathy (HE) (5) and in our studies on neurochemical alterations in the CNS triggered by chronic liver dysfunction we have found that an enhanced histamine synthes ...
HTM Cortical Learning Algorithms
... many levels in the hierarchy are necessary? There is a tradeoff between how much memory is allocated to each level and how many levels are needed. Fortunately, HTMs automatically learn the best possible representations at each level given the statistics of the input and the amount of resources alloc ...
... many levels in the hierarchy are necessary? There is a tradeoff between how much memory is allocated to each level and how many levels are needed. Fortunately, HTMs automatically learn the best possible representations at each level given the statistics of the input and the amount of resources alloc ...
- Wiley Online Library
... different response to neural injury compared with mammalian neural injury. The regenerating urodele cord produces new neurons as well as supporting axonal regrowth. It is not yet clear to what extent urodele spinal cord regeneration recapitulates embryonic anteroposterior and dorsoventral patterning ...
... different response to neural injury compared with mammalian neural injury. The regenerating urodele cord produces new neurons as well as supporting axonal regrowth. It is not yet clear to what extent urodele spinal cord regeneration recapitulates embryonic anteroposterior and dorsoventral patterning ...
Noradrenergic Suppression of Synaptic Transmission May Influence Cortical Signal-to-Noise Ratio
... 4-isoxazolepropionic acid (AMPA)] and slow time courses [Nmethyl-D-aspartate (NMDA)]. Each feed-forward interneuron connects to 10 pyramidal cells. These synapses elicit synaptic potentials with both fast (20%) and slow (80%) time courses representing GABAA and GABAB receptors. Both time courses hav ...
... 4-isoxazolepropionic acid (AMPA)] and slow time courses [Nmethyl-D-aspartate (NMDA)]. Each feed-forward interneuron connects to 10 pyramidal cells. These synapses elicit synaptic potentials with both fast (20%) and slow (80%) time courses representing GABAA and GABAB receptors. Both time courses hav ...
judasMRT99
... In the developing neocortex of rats and mice, nitrinergic neurons are usually not observed in the marginal zone (MZ), i.e., the developing layer I (Bravo et al., 1997; Derer and Derer, 1993; Iwase et al., 1998; Tomić et al., 1994; Van Eden et al., 1996); they were also not observed in the neocortex ...
... In the developing neocortex of rats and mice, nitrinergic neurons are usually not observed in the marginal zone (MZ), i.e., the developing layer I (Bravo et al., 1997; Derer and Derer, 1993; Iwase et al., 1998; Tomić et al., 1994; Van Eden et al., 1996); they were also not observed in the neocortex ...
Identification of Mechanoafferent Neurons in Terrestrial Snail
... 1979). Several putative mechanosensory cells presynaptic to withdrawal interneurons were described earlier; however, their receptive fields were not well defined and assigned to liver and other internal organs located under the shell (Arakelov et al. 1989). In this study, we have identified for the ...
... 1979). Several putative mechanosensory cells presynaptic to withdrawal interneurons were described earlier; however, their receptive fields were not well defined and assigned to liver and other internal organs located under the shell (Arakelov et al. 1989). In this study, we have identified for the ...
Full version (PDF file)
... processing, by binding to cell surface receptors which can be classified into seven distinct families (5-HT1 to 5-HT7). With the exception of the 5-HT3 receptors, which are ligand-gated ion channel, all of others are known to be seven transmembrane spanning G-protein coupled receptors (Pierce et al. ...
... processing, by binding to cell surface receptors which can be classified into seven distinct families (5-HT1 to 5-HT7). With the exception of the 5-HT3 receptors, which are ligand-gated ion channel, all of others are known to be seven transmembrane spanning G-protein coupled receptors (Pierce et al. ...
Multi-chip dataflow architecture for massive scale biophysically
... The ability to simulate brain neurons in real-time using biophysically-meaningful models is a critical pre-requisite grasping human brain behavior. By simulating neurons’ behavior, it is possible, for example, to reduce the need for in-vivo experimentation, to improve artificial intelligence and to ...
... The ability to simulate brain neurons in real-time using biophysically-meaningful models is a critical pre-requisite grasping human brain behavior. By simulating neurons’ behavior, it is possible, for example, to reduce the need for in-vivo experimentation, to improve artificial intelligence and to ...
Subventricular zone
The subventricular zone (SVZ) is a paired brain structure situated throughout the lateral walls of the lateral ventricles. It is composed of four distinct layers of variable thickness and cell density, as well as cellular composition. Along with the dentate gyrus of the hippocampus, the SVZ is one of two places where neurogenesis has been found to occur in the adult mammalian brain.