Neural Coding and Auditory Perception
... auditory model [4]. We used Huffman stimuli, which have flat magnitude spectra and a 2π phase transition around a frequency FT, to manipulate the relative timing of spikes between neighboring AN fibers without changing the overall firing rates [1]. We used the principle of cochlear scaling invarianc ...
... auditory model [4]. We used Huffman stimuli, which have flat magnitude spectra and a 2π phase transition around a frequency FT, to manipulate the relative timing of spikes between neighboring AN fibers without changing the overall firing rates [1]. We used the principle of cochlear scaling invarianc ...
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... removed. Removal of all retinal input revealed the presence of intrinsic oscillatory LGN bursting, which was substantially correlated across all layers. This activity was abolished following subsequent removal of cortical feedback. However, removal of cortical feedback did not appreciably change the ...
... removed. Removal of all retinal input revealed the presence of intrinsic oscillatory LGN bursting, which was substantially correlated across all layers. This activity was abolished following subsequent removal of cortical feedback. However, removal of cortical feedback did not appreciably change the ...
Regulation of Action-Potential Firing in Spiny Neurons of the Rat
... Intracellular records were obtained from 23 striatal cells that were identified as spiny projection neurons by histological examination after the experiment (Fig. 1). Five cells in the sample were identified as striatonigral neurons by antidromic activation from the substantia nigra. All neurons in ...
... Intracellular records were obtained from 23 striatal cells that were identified as spiny projection neurons by histological examination after the experiment (Fig. 1). Five cells in the sample were identified as striatonigral neurons by antidromic activation from the substantia nigra. All neurons in ...
Tissue Lab Practical Review
... Tissue Lab Practical Review For Mrs. Nemanic’s Stellar Students! ...
... Tissue Lab Practical Review For Mrs. Nemanic’s Stellar Students! ...
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... neurons even from caudal regions of the SVZ (at the level of the posterior hippocampus) migrate 5–8 mm rostrally to reach the olfactory bulb where they differentiate into inhibitory interneurons. This was shown by transplantation of genetically labeled SVZ tissue and by focal labeling of endogenous ...
... neurons even from caudal regions of the SVZ (at the level of the posterior hippocampus) migrate 5–8 mm rostrally to reach the olfactory bulb where they differentiate into inhibitory interneurons. This was shown by transplantation of genetically labeled SVZ tissue and by focal labeling of endogenous ...
Regulation of Action-Potential Firing in Spiny Neurons of the Rat
... Intracellular records were obtained from 23 striatal cells that were identified as spiny projection neurons by histological examination after the experiment (Fig. 1). Five cells in the sample were identified as striatonigral neurons by antidromic activation from the substantia nigra. All neurons in ...
... Intracellular records were obtained from 23 striatal cells that were identified as spiny projection neurons by histological examination after the experiment (Fig. 1). Five cells in the sample were identified as striatonigral neurons by antidromic activation from the substantia nigra. All neurons in ...
Wiring optimization can relate neuronal structure and function
... ecause brain structure is intimately related to its function, understanding structure should provide important clues to brain function. Traditionally, structural features of the brain are explained from the perspective of development, a complex process including such events as cell migration (1, 2), ...
... ecause brain structure is intimately related to its function, understanding structure should provide important clues to brain function. Traditionally, structural features of the brain are explained from the perspective of development, a complex process including such events as cell migration (1, 2), ...
The Art and Science of Research Grant Writing
... 1999, submitted). Of these neuroendocrine DAergic neuron populations, the autoregulatory properties of the PHDA neurons seem to most closely resemble the well-characterized nigrostriatal dopaminergic neurons as both nigrostriatal DAergic (70,71) and PHDA neurons (72) seem to be inhibited by D2/3–typ ...
... 1999, submitted). Of these neuroendocrine DAergic neuron populations, the autoregulatory properties of the PHDA neurons seem to most closely resemble the well-characterized nigrostriatal dopaminergic neurons as both nigrostriatal DAergic (70,71) and PHDA neurons (72) seem to be inhibited by D2/3–typ ...
The Neuronal Correlate of Consciousness
... but seem to reflect the specificities of the functional architecture that is determined by the genes, modified by experience throughout post-natal development and further shaped by learning. These self-generated activity patterns in turn seem to serve as priors with which incoming sensory signals ar ...
... but seem to reflect the specificities of the functional architecture that is determined by the genes, modified by experience throughout post-natal development and further shaped by learning. These self-generated activity patterns in turn seem to serve as priors with which incoming sensory signals ar ...
Reticular activating system of a central pattern generator
... variation in the flexor tonic phase duration, ranging from 1 to 7 sec. Before the recordings, we carefully placed the multielectrode array in the same position in all the experiments taking into account the obex as an anatomical reference. We analyzed the averaged and standard deviation of the OSP r ...
... variation in the flexor tonic phase duration, ranging from 1 to 7 sec. Before the recordings, we carefully placed the multielectrode array in the same position in all the experiments taking into account the obex as an anatomical reference. We analyzed the averaged and standard deviation of the OSP r ...
What is the cause of the changes in membrane potential during an
... A NERVE is a bundle of axons. Most commonly they extend from the brain or spinal cord to the periphery. ...
... A NERVE is a bundle of axons. Most commonly they extend from the brain or spinal cord to the periphery. ...
Cell Density in the Border Zone Around Old Small Human Brain
... patient died after a brain stem infarct. The patients were selected among the total number of neuroautopsy cases performed at the Institute of Neuropathology of Rigshospitalet from 1979 to 1984. After immersion fixation in formalin for at least two weeks, the cerebral hemispheres were separated from ...
... patient died after a brain stem infarct. The patients were selected among the total number of neuroautopsy cases performed at the Institute of Neuropathology of Rigshospitalet from 1979 to 1984. After immersion fixation in formalin for at least two weeks, the cerebral hemispheres were separated from ...
Nervous Lecture Test Questions – Set 1
... b. support neurons, by attaching to them and to capillaries c. are phagocytic d. form the myelin of CNS axons e. form the myelin of PNS axons ...
... b. support neurons, by attaching to them and to capillaries c. are phagocytic d. form the myelin of CNS axons e. form the myelin of PNS axons ...
P2 Receptor Antagonist Trinitrophenyl-Adenosine
... PBS. The slices were then incubated overnight at 4°C with different primary antisera in 1% donkey normal serum in PBS [rabbit antiP2X1(382–399) from Alomone Labs was used at 1:500; goat anti-neurofilament light chain (NFL) (C15) from Santa Cruz Biotechnology, Inc. (Milan, Italy) was used at 1:100; g ...
... PBS. The slices were then incubated overnight at 4°C with different primary antisera in 1% donkey normal serum in PBS [rabbit antiP2X1(382–399) from Alomone Labs was used at 1:500; goat anti-neurofilament light chain (NFL) (C15) from Santa Cruz Biotechnology, Inc. (Milan, Italy) was used at 1:100; g ...
Functional Connections of the Visual Cortex Studied by Cross
... The question of how the visual cortical circuitry generates characteristic neuronal response properties is a central problem in visual physiology. To this end, numerous studies have been undertaken to determine the neuronal connectivities underlying cortical responses. The cross-correlation techniqu ...
... The question of how the visual cortical circuitry generates characteristic neuronal response properties is a central problem in visual physiology. To this end, numerous studies have been undertaken to determine the neuronal connectivities underlying cortical responses. The cross-correlation techniqu ...
Project Report: Investigating topographic neural map development
... field is no longer isotropic, but stretched along a particular angle in order to detect edges and objects with a particular orientation. This is typically modeled as a Gabor function. With regard to stationary images, receptive fields are usually only modeled spatially, however, they have a temporal ...
... field is no longer isotropic, but stretched along a particular angle in order to detect edges and objects with a particular orientation. This is typically modeled as a Gabor function. With regard to stationary images, receptive fields are usually only modeled spatially, however, they have a temporal ...
CHAPTER 10: NERVOUS SYSTEM I
... Ca2+ channels open and calcium ions rush into axonal terminal causing synaptic vesicles (filled with neurotransmitter/NT) to release NT via exocytosis into the synaptic cleft. NT diffuses across synaptic cleft and depolarizes the postsynaptic neuron's membrane. An action potential (AP) is triggered ...
... Ca2+ channels open and calcium ions rush into axonal terminal causing synaptic vesicles (filled with neurotransmitter/NT) to release NT via exocytosis into the synaptic cleft. NT diffuses across synaptic cleft and depolarizes the postsynaptic neuron's membrane. An action potential (AP) is triggered ...
Principles of neural ensemble physiology underlying the operation
... PersPectives that information about single motor parameters is processed within multiple cortical areas. BMI studies1,42 have also revealed that real-time predictions of motor parameters can be obtained from multiple frontal and parietal cortical areas. This widespread representation of motor param ...
... PersPectives that information about single motor parameters is processed within multiple cortical areas. BMI studies1,42 have also revealed that real-time predictions of motor parameters can be obtained from multiple frontal and parietal cortical areas. This widespread representation of motor param ...
Neurobilogy of Sleep
... serotonin (5HT), dopamine (DA), and histamine (HA). • Neurons are often characterized with respect to sleep by when they are most active. Some neurons are active during wake, during rapid eye movement (REM) only (REM-on), during REM and wake (wake/REM-on), during non–rapid eye movement (NREM) only ( ...
... serotonin (5HT), dopamine (DA), and histamine (HA). • Neurons are often characterized with respect to sleep by when they are most active. Some neurons are active during wake, during rapid eye movement (REM) only (REM-on), during REM and wake (wake/REM-on), during non–rapid eye movement (NREM) only ( ...
Harris KD. Neural signatures of cell assembly organization. Nat Rev
... to two animals, and a sensory responsive neuron was recorded from each animal. Because there is no causal influence from one brain to the other, the response of two neurons recorded in the two brains will be independent, for any given stimulus presentation (conditional independence). Nevertheless, b ...
... to two animals, and a sensory responsive neuron was recorded from each animal. Because there is no causal influence from one brain to the other, the response of two neurons recorded in the two brains will be independent, for any given stimulus presentation (conditional independence). Nevertheless, b ...
Implantable microcoils for intracortical magnetic
... is required, it is well established that prolonged implantation into the cortex induces a foreign body response that can lead to the formation of a high-impedance glial sheath around the implant with a resultant increase in distance to targeted neurons (11, 12). Migration of neurons away from the im ...
... is required, it is well established that prolonged implantation into the cortex induces a foreign body response that can lead to the formation of a high-impedance glial sheath around the implant with a resultant increase in distance to targeted neurons (11, 12). Migration of neurons away from the im ...
Encoding of Rules by Neurons in the Human Dorsolateral Prefrontal
... was applied to filter out the majority of the low-voltage background activity. Classification of action potentials was performed using template matching and principal component analysis. Putative neurons were required to separate clearly from any channel noise, to demonstrate waveform morphology consi ...
... was applied to filter out the majority of the low-voltage background activity. Classification of action potentials was performed using template matching and principal component analysis. Putative neurons were required to separate clearly from any channel noise, to demonstrate waveform morphology consi ...
Coupled Noisy Spiking Neurons as Velocity-Controlled
... model in use). Each abstract VCO’s state was characterized by its phase i evolving at a timevarying frequency, fi(t) ⫽ b ⫹ s(t)cos[i ⫺ (t)], which was a function of speed, s(t); body (VCOs) in any particular simulation. Preliminary simulations showed direction (t); and each VCO’s preferred dir ...
... model in use). Each abstract VCO’s state was characterized by its phase i evolving at a timevarying frequency, fi(t) ⫽ b ⫹ s(t)cos[i ⫺ (t)], which was a function of speed, s(t); body (VCOs) in any particular simulation. Preliminary simulations showed direction (t); and each VCO’s preferred dir ...
Untitled
... the cerebral cortex to particular subcellular domains of the target cells. This suggests that compartmentalized, synapse specific action of GABA is required in cortical networks for phasic inhibition. However, GABA released at the synaptic cleft diffuses to receptors outside the postsynaptic density ...
... the cerebral cortex to particular subcellular domains of the target cells. This suggests that compartmentalized, synapse specific action of GABA is required in cortical networks for phasic inhibition. However, GABA released at the synaptic cleft diffuses to receptors outside the postsynaptic density ...