Spontaneous Spike Activity of Spinoreticular Tract Neurons During
... Abstract: Sleep mentation studies infer that pain sensation in humans may be reduced during active REM sleep. However, to provide a mechanistic explanation for this phenomenon, few, if any neurophysiological studies have been performed at the lumbar level from neurons comprising classical pain pathw ...
... Abstract: Sleep mentation studies infer that pain sensation in humans may be reduced during active REM sleep. However, to provide a mechanistic explanation for this phenomenon, few, if any neurophysiological studies have been performed at the lumbar level from neurons comprising classical pain pathw ...
Neurons of human nucleus accumbens
... were considered as the efferent elements, but we did not find aspiny types also described in monkey striatum in human nucleus accumbens 12, 13. Our finding of type IV, multipolar neuron (Figures 11 and 12), corresponds to medium spiny neurons described by other authors. Medium spiny neurons consist ...
... were considered as the efferent elements, but we did not find aspiny types also described in monkey striatum in human nucleus accumbens 12, 13. Our finding of type IV, multipolar neuron (Figures 11 and 12), corresponds to medium spiny neurons described by other authors. Medium spiny neurons consist ...
Spike-and-Wave Oscillations Based on the Properties of GABAB
... topology, values of synaptic conductances, and robustness of the network were described in detail in a previous study (Destexhe et al., 1998a). All intrinsic membrane currents Ijiint were described by a variant of the Hodgkin and Huxley (1952) model (Eqs. 7–9). All cell types had Na 1 and K 1 curren ...
... topology, values of synaptic conductances, and robustness of the network were described in detail in a previous study (Destexhe et al., 1998a). All intrinsic membrane currents Ijiint were described by a variant of the Hodgkin and Huxley (1952) model (Eqs. 7–9). All cell types had Na 1 and K 1 curren ...
Neuronal activity in dorsomedial frontal cortex and prefrontal cortex
... in which it was not. Under such circumstances, one might argue that cells in DMF and PF were affected by stimulus location in nonspatially guided tasks because spatial factors controlled responding in other tasks. The present experiment overcame that problem because stimulus location was never a dif ...
... in which it was not. Under such circumstances, one might argue that cells in DMF and PF were affected by stimulus location in nonspatially guided tasks because spatial factors controlled responding in other tasks. The present experiment overcame that problem because stimulus location was never a dif ...
Document
... • Figure 5 demonstrates that two different neurons have different responses to the same stimulus • Although the action potentials are different, a lot of the subthreshold response is similar between them, reflecting shared input from the network. • Regardless of shared inputs, there is significant d ...
... • Figure 5 demonstrates that two different neurons have different responses to the same stimulus • Although the action potentials are different, a lot of the subthreshold response is similar between them, reflecting shared input from the network. • Regardless of shared inputs, there is significant d ...
Neuromodulation of in Layer II Medial Entorhinal Cortex I
... M atropine, a competitive mAChR antagonist and measured sought to provide the first direct measurement of M current in after subsequent application of 1 M atropine with 10 M CCh. mEC SCs in voltage clamp. Surprisingly, when using the standard No significant change was observed after application o ...
... M atropine, a competitive mAChR antagonist and measured sought to provide the first direct measurement of M current in after subsequent application of 1 M atropine with 10 M CCh. mEC SCs in voltage clamp. Surprisingly, when using the standard No significant change was observed after application o ...
Neural Coding and Auditory Perception
... resolved harmonics of a complex tone that are more robust to variations in stimulus level than traditional rate-place cues and could potentially be used in pitch extraction [2]. To investigate whether these cues are extracted by central neurons, we recorded from single units in cochlear nucleus (CN) ...
... resolved harmonics of a complex tone that are more robust to variations in stimulus level than traditional rate-place cues and could potentially be used in pitch extraction [2]. To investigate whether these cues are extracted by central neurons, we recorded from single units in cochlear nucleus (CN) ...
ABSTRACT BOOK CHAMPALIMAUD NEUROSCIENCE
... between individual nerve cells. Synapses can be modulated in their strength by a variety of different mechanisms. We have investigated a number of these mechanisms, ranging from homeostatic control of synaptic efficacy to morphological manifestations of synaptic strengthening or weakening, and the r ...
... between individual nerve cells. Synapses can be modulated in their strength by a variety of different mechanisms. We have investigated a number of these mechanisms, ranging from homeostatic control of synaptic efficacy to morphological manifestations of synaptic strengthening or weakening, and the r ...
Starosta, S., Güntürkün, O., Stüttgen, M.C., Stimulus
... separated by 8 standard deviations, implying that the distributions overlap by less than 0.01%. Units which did not meet all of the above criteria were marked as multi units and analyzed separately. However, the criterion of an SNR .2 held for both single and multi units. Mean SNR for single units w ...
... separated by 8 standard deviations, implying that the distributions overlap by less than 0.01%. Units which did not meet all of the above criteria were marked as multi units and analyzed separately. However, the criterion of an SNR .2 held for both single and multi units. Mean SNR for single units w ...
ON and OFF Pathways of Ganglion Cells in the
... In the vertebrate retina, the visual stimulus is converted into electrical signals by the photoreceptors, and it is processed through the inner layers to the ganglion cell layer (Figure 1). A ganglion cell receives diverse inputs from multiple interneurons, bipolar and amacrine cells, where each in ...
... In the vertebrate retina, the visual stimulus is converted into electrical signals by the photoreceptors, and it is processed through the inner layers to the ganglion cell layer (Figure 1). A ganglion cell receives diverse inputs from multiple interneurons, bipolar and amacrine cells, where each in ...
Simulations of the Role of the Muscarinic-Activated Calcium- I in Entorhinal Neuronal
... The interneuron is modeled to replicate the basic properties of a fastspiking nonadapting type cell. The interneuron is composed of six compartments, with one representing the soma, three representing a principal dendrite, and two representing all but one of the dendrites lumped together. The intern ...
... The interneuron is modeled to replicate the basic properties of a fastspiking nonadapting type cell. The interneuron is composed of six compartments, with one representing the soma, three representing a principal dendrite, and two representing all but one of the dendrites lumped together. The intern ...
Multiple dynamic representations in the motor cortex
... In contrast, expert mice protracted their whiskers through a large angle to search for the pole soon after it became available (within approximately 350 ms) (auditory cue, Fig. 1d, e)27. The repeatability of whisking across trials (Pearson’s correlation coefficient; r 5 0.57, P , 0.001) (Supplementa ...
... In contrast, expert mice protracted their whiskers through a large angle to search for the pole soon after it became available (within approximately 350 ms) (auditory cue, Fig. 1d, e)27. The repeatability of whisking across trials (Pearson’s correlation coefficient; r 5 0.57, P , 0.001) (Supplementa ...
Nervous System I
... The nervous system oversees all that we do and largely determines who we are. Through a vast communicating network of cells and the information that they send and receive, the nervous system can detect changes in the body, make decisions, and stimulate muscles or glands to respond. Typically, these ...
... The nervous system oversees all that we do and largely determines who we are. Through a vast communicating network of cells and the information that they send and receive, the nervous system can detect changes in the body, make decisions, and stimulate muscles or glands to respond. Typically, these ...
CNS Tumors - Fahd Al-Mulla Molecular Laboratory
... •The main functional and cellular component of the nervous system. •They are electrically excitable cells capable of processing and transmitting information signals in the form of action potentials. ...
... •The main functional and cellular component of the nervous system. •They are electrically excitable cells capable of processing and transmitting information signals in the form of action potentials. ...
Neural Conduction - U
... Nodes of Ranvier); in response, the voltagegated Na+ channels there open and another full-blown potential is generated ...
... Nodes of Ranvier); in response, the voltagegated Na+ channels there open and another full-blown potential is generated ...
Evolving Connectionist and Fuzzy-Connectionist Systems for
... a new approach to building on-line, adaptive decision making and control systems. This approach is called evolving connectionist systems (ECOS). ECOS evolve through incremental, on-line learning. They can accommodate any new input data, including new features, new classes, etc. New connections and n ...
... a new approach to building on-line, adaptive decision making and control systems. This approach is called evolving connectionist systems (ECOS). ECOS evolve through incremental, on-line learning. They can accommodate any new input data, including new features, new classes, etc. New connections and n ...
PRENATAL AND EARLY POSTNATAL ONTOGENESIS OF THE
... At the time of birth, cortical basket cells are found in all cortical layers (except layer I), but only those located within, above or below layer IV are considered to be mature. The horizontal axonal collaterals of these cells form pericellular baskets around the bodies of the pyramidal cells of lo ...
... At the time of birth, cortical basket cells are found in all cortical layers (except layer I), but only those located within, above or below layer IV are considered to be mature. The horizontal axonal collaterals of these cells form pericellular baskets around the bodies of the pyramidal cells of lo ...
Parietal Cortex and Hippocampal Contributions to RuleBased
... addition, rats and humans share many brain structures, including the hippocampus and parietal cortex, which are strongly implicated in spatial cognition. The first major discovery of spatial mapping in the brain occurred in 1971, when John O’Keefe found a special cell with a unique firing pattern ...
... addition, rats and humans share many brain structures, including the hippocampus and parietal cortex, which are strongly implicated in spatial cognition. The first major discovery of spatial mapping in the brain occurred in 1971, when John O’Keefe found a special cell with a unique firing pattern ...
Channelrhodopsin
Channelrhodopsins are a subfamily of retinylidene proteins (rhodopsins) that function as light-gated ion channels. They serve as sensory photoreceptors in unicellular green algae, controlling phototaxis: movement in response to light. Expressed in cells of other organisms, they enable light to control electrical excitability, intracellular acidity, calcium influx, and other cellular processes. Channelrhodopsin-1 (ChR1) and Channelrhodopsin-2 (ChR2) from the model organism Chlamydomonas reinhardtii are the first discovered channelrhodopsins. Variants have been cloned from other algal species, and more are expected.