reciprocal inhibition in the motor nervous system of the nematode
... send individual neuron processes around the body wall and into the dorsal cord. These ventrodorsal processes are called commissures (a term which is of long-standing usage in the nematode literature (Hesse, 1892; Bullock and Horridge, 1965)). In the previous paper (Walrond et al., 1985) we used a di ...
... send individual neuron processes around the body wall and into the dorsal cord. These ventrodorsal processes are called commissures (a term which is of long-standing usage in the nematode literature (Hesse, 1892; Bullock and Horridge, 1965)). In the previous paper (Walrond et al., 1985) we used a di ...
PDF - Folia Biologica
... one of the most important events in the history of the vertebrate brain. This complicated process peaked in the human brain. In the human neocortex are deposited structural and functional mechanisms of language, thinking, planning and other cognitive functions that significantly differentiate human b ...
... one of the most important events in the history of the vertebrate brain. This complicated process peaked in the human brain. In the human neocortex are deposited structural and functional mechanisms of language, thinking, planning and other cognitive functions that significantly differentiate human b ...
Dopamine Modulates the Function of Group II and Group III
... dendrites (Bjorklund and Lindvall, 1975; Cheramy et al., 1981; Rice et al., 1997). By its actions on D2 autoreceptors located on SNc DA-ergic neurons, somatodendritically released DA can modulate SNc cell firing and subsequent DA release in the striatum (Santiago and Westerink, 1991). Furthermore, i ...
... dendrites (Bjorklund and Lindvall, 1975; Cheramy et al., 1981; Rice et al., 1997). By its actions on D2 autoreceptors located on SNc DA-ergic neurons, somatodendritically released DA can modulate SNc cell firing and subsequent DA release in the striatum (Santiago and Westerink, 1991). Furthermore, i ...
Integrated model of visual processing
... computation is impossible when it requires combining neurons with selectivities to different attributes like movement direction, depth, color, shape etc . . . . One way to achieve this combination is by exchanging information between neurons in higher order areas coding for different attributes. How ...
... computation is impossible when it requires combining neurons with selectivities to different attributes like movement direction, depth, color, shape etc . . . . One way to achieve this combination is by exchanging information between neurons in higher order areas coding for different attributes. How ...
Mechanisms of Magnetic Stimulation of Central Nervous System
... realistic magnetic stimulation (MS) with compartmental modeling of neurons with arbitrary morphology. The induced electric field for each location in space was combined with standard compartmental modeling software to calculate the membrane current generated by the electromagnetic field for each seg ...
... realistic magnetic stimulation (MS) with compartmental modeling of neurons with arbitrary morphology. The induced electric field for each location in space was combined with standard compartmental modeling software to calculate the membrane current generated by the electromagnetic field for each seg ...
Molecular Underpinnings of Motor Pattern Generation: Differential
... determined. We estimated that the cytoplasmic contribution made up ⬃5–10% of the total immunoreactivity in all cells examined (see Figs. 2 D, 4 A). In most cases, we did not observe significant differences in cytoplasmic staining between cells in the same ganglion. Staining intensity was normalized ...
... determined. We estimated that the cytoplasmic contribution made up ⬃5–10% of the total immunoreactivity in all cells examined (see Figs. 2 D, 4 A). In most cases, we did not observe significant differences in cytoplasmic staining between cells in the same ganglion. Staining intensity was normalized ...
Contraction Properties of VLSI Cooperative Competitive Neural
... A steady state solution is easily computable for a network of linear threshold units [5, 21]: it is a fixed point in state space, i.e. a set of activities for the neurons. In a VLSI network of I&F neurons the steady state will be modified by mismatch and the activities will fluctuate due to external ...
... A steady state solution is easily computable for a network of linear threshold units [5, 21]: it is a fixed point in state space, i.e. a set of activities for the neurons. In a VLSI network of I&F neurons the steady state will be modified by mismatch and the activities will fluctuate due to external ...
Memory from the dynamics of intrinsic membrane currents
... by the Kv1.3 current caused the cell to fire tonically when depolarized but not to fire bursts of action potentials in response to a short depolarization. When a longer current pulse was applied, the neuron initially fired tonically, but then as Kv1.3 slowly inactivated, the cell moved back into its ...
... by the Kv1.3 current caused the cell to fire tonically when depolarized but not to fire bursts of action potentials in response to a short depolarization. When a longer current pulse was applied, the neuron initially fired tonically, but then as Kv1.3 slowly inactivated, the cell moved back into its ...
Stimulation Within the Rostral Ventrolateral Medulla Can Evoke
... neurons in vitro. J. Neurophysiol. 77: 229–235, 1997. The inhibitory responses of identified sympathetic preganglionic neurons (SPNs) to stimulation within the rostral ventrolateral medulla (RVLM) were studied to determine their nature and pharmacology. Whole cell patch-clamp recordings were made fr ...
... neurons in vitro. J. Neurophysiol. 77: 229–235, 1997. The inhibitory responses of identified sympathetic preganglionic neurons (SPNs) to stimulation within the rostral ventrolateral medulla (RVLM) were studied to determine their nature and pharmacology. Whole cell patch-clamp recordings were made fr ...
Sparse Coding in the Neocortex
... can be highly selective to faces and other objects (e.g., Kendrick and Baldwin, 1987; Quiroga, et al. 2005). However, those promoting the usefulness of sparse representations are not proposing that the ultimate goal is to have one neuron for every object—and certainly not for a particular view of e ...
... can be highly selective to faces and other objects (e.g., Kendrick and Baldwin, 1987; Quiroga, et al. 2005). However, those promoting the usefulness of sparse representations are not proposing that the ultimate goal is to have one neuron for every object—and certainly not for a particular view of e ...
Lab 10 – Nervous Tissue Nervous Tissue
... Nervous tissue integrates and coordinates the activities of the body’s cells and organs through conduction of electrical impulses and secretion of chemical neurotransmitters. ...
... Nervous tissue integrates and coordinates the activities of the body’s cells and organs through conduction of electrical impulses and secretion of chemical neurotransmitters. ...
The Fraction of Cortical GABAergic Neurons Is Constant from Near
... steps. The first step is to estimate, at each age, what fraction of all cortical cells are neurons, and the second step is to find what fraction of all cortical cells are GAD67 ⫹. In the final step we divide the second fraction by the first to find the fraction of all neurons that are GAD67 ⫹ at the ...
... steps. The first step is to estimate, at each age, what fraction of all cortical cells are neurons, and the second step is to find what fraction of all cortical cells are GAD67 ⫹. In the final step we divide the second fraction by the first to find the fraction of all neurons that are GAD67 ⫹ at the ...
Molecular and functional analysis of Drosophila single
... a role in controlling axonogenesis of mammillary body axons (Marion et al., 2005). The results from mammals indicate that sim can function in axonogenesis, and this is also a potential role for sim in central brain development given the sim disorganized neuropil phenotype. In this paper, we further ...
... a role in controlling axonogenesis of mammillary body axons (Marion et al., 2005). The results from mammals indicate that sim can function in axonogenesis, and this is also a potential role for sim in central brain development given the sim disorganized neuropil phenotype. In this paper, we further ...
Orexin (Hypocretin)-Like Immunoreactivity in the Cat Hypothalamus
... intake and that the expression of orexin mRNA is increased by food deprivation. These observations suggest that a major function of the orexins is likely to be involved in the regulation of feeding behavior (reviewed in Ref. 3). Although neurons containing orexins are located exclusively in the LHA, ...
... intake and that the expression of orexin mRNA is increased by food deprivation. These observations suggest that a major function of the orexins is likely to be involved in the regulation of feeding behavior (reviewed in Ref. 3). Although neurons containing orexins are located exclusively in the LHA, ...
Orexinergic Input to Dopaminergic Neurons of the Human Ventral
... VTA in reward processing and drug abuse has been well established in laboratory rodents [3], the functional significance of an analogous orexinergic projection in the human has not been explored. Therefore, in the present study we addressed the issue of whether orexinergic neurons provide a similar ...
... VTA in reward processing and drug abuse has been well established in laboratory rodents [3], the functional significance of an analogous orexinergic projection in the human has not been explored. Therefore, in the present study we addressed the issue of whether orexinergic neurons provide a similar ...
PDF - Oxford Academic - Oxford University Press
... entry zone (DREZ) following dorsal root lesion (Beggah et al., Neuroscience 133: 749^762, 2005). However, direct evidence for a growth-inhibitory role of these proteoglycans in vivo is still lacking.We therefore performed dorsal root lesion (rhizotomy) in mice deficient in both Neurocan and Brevican ...
... entry zone (DREZ) following dorsal root lesion (Beggah et al., Neuroscience 133: 749^762, 2005). However, direct evidence for a growth-inhibitory role of these proteoglycans in vivo is still lacking.We therefore performed dorsal root lesion (rhizotomy) in mice deficient in both Neurocan and Brevican ...
L-E Chap 6 2016
... When describing pathways in the nervous system, only the neurons with long axons that connect distant regions of the nervous system (projection neurons) are counted. A tract is the bundle of axons with the same origin and a common termination. Somatosensory pathways are often named for the origin an ...
... When describing pathways in the nervous system, only the neurons with long axons that connect distant regions of the nervous system (projection neurons) are counted. A tract is the bundle of axons with the same origin and a common termination. Somatosensory pathways are often named for the origin an ...
Wang et al 2photon calcium imaging of odor in fly brain cell 2003
... with a sensitivity and resolution not previously possible. These imaging experiments demonstrate that different odors activate different combinations of glomeruli and these spatial patterns of activity are conserved in different flies. At concentrations of odors reflective of the fly’s native enviro ...
... with a sensitivity and resolution not previously possible. These imaging experiments demonstrate that different odors activate different combinations of glomeruli and these spatial patterns of activity are conserved in different flies. At concentrations of odors reflective of the fly’s native enviro ...
General anaesthesia: from molecular targets to neuronal
... specific mutations in the receptors could remove, or at least greatly reduce, their anaesthetic sensitivity16,17. An enormous body of literature now exists on the effects that specific point mutations have on the responses of GABAA receptors to general anaesthetic modulation. These studies are of pa ...
... specific mutations in the receptors could remove, or at least greatly reduce, their anaesthetic sensitivity16,17. An enormous body of literature now exists on the effects that specific point mutations have on the responses of GABAA receptors to general anaesthetic modulation. These studies are of pa ...
Development and function of human cerebral cortex neural networks
... highly specific manner during mouse embryonic development, initiating at ∼E16 and increasing in its frequency, before subsiding by the first week after birth (Corlew et al., 2004). Synchronised bursts in the cortex have been shown to be dependent on glutamatergic synaptic activity (Robinson et al., ...
... highly specific manner during mouse embryonic development, initiating at ∼E16 and increasing in its frequency, before subsiding by the first week after birth (Corlew et al., 2004). Synchronised bursts in the cortex have been shown to be dependent on glutamatergic synaptic activity (Robinson et al., ...
11 - Dr. Jerry Cronin
... • Repeated use of synapse increases ability of presynaptic cell to excite postsynaptic neuron – Ca2+ concentration increases in presynaptic terminal and postsynaptic neuron ...
... • Repeated use of synapse increases ability of presynaptic cell to excite postsynaptic neuron – Ca2+ concentration increases in presynaptic terminal and postsynaptic neuron ...
Neuron-Binding Human Monoclonal Antibodies Support Central
... Abstract. Two human IgMs (sHIgM12 and sHIgM42) were identified that supported in vitro central nervous system (CNS) neurite extension equal to the potent neurite stimulatory molecule laminin. Both IgMs bound to multiple cell types in unfixed CNS tissue and to the surface of neurons in culture. Both ...
... Abstract. Two human IgMs (sHIgM12 and sHIgM42) were identified that supported in vitro central nervous system (CNS) neurite extension equal to the potent neurite stimulatory molecule laminin. Both IgMs bound to multiple cell types in unfixed CNS tissue and to the surface of neurons in culture. Both ...
PDF
... (trace 0) and nine deciles (traces 1–9) in the frequency distribution of shock consumption. Fast learners (traces 0–4) tend to consume reinforcement only during the first two training epochs, whereas slow learners (traces 5–9) are reinforced throughout. (C) Effective conditioning requires a function ...
... (trace 0) and nine deciles (traces 1–9) in the frequency distribution of shock consumption. Fast learners (traces 0–4) tend to consume reinforcement only during the first two training epochs, whereas slow learners (traces 5–9) are reinforced throughout. (C) Effective conditioning requires a function ...
A REVIEW ON THE PHARMACOLOGY AND TOXICOLOGY OF ACETYLCHOLINE RECEPTORS... THE NEUROMUSCULAR JUNCTION Original Article
... The cholinergic transmission in the human body was first explained by Reid Hunt in 1990 [1]. Hunt had carried out the experiment on adrenal gland and found out that there was lowering of blood pressure instead of rising due to the potent Acetylcholine activity which had a potent activity index of 10 ...
... The cholinergic transmission in the human body was first explained by Reid Hunt in 1990 [1]. Hunt had carried out the experiment on adrenal gland and found out that there was lowering of blood pressure instead of rising due to the potent Acetylcholine activity which had a potent activity index of 10 ...
neurology_lec13_9_5_2011 - Post-it
... We will talk about cranial nerves : #2 , #3, #4, #6 Optic nerve -2ed cranial nerve -Purely sensory -type of fiber ( SSA- special sesory afferent ) but olfactory nerve ( SVA ) -start at optic disc as converge of ganglion cells axons till optic chiasm – it’s also called optic tract because it’s all li ...
... We will talk about cranial nerves : #2 , #3, #4, #6 Optic nerve -2ed cranial nerve -Purely sensory -type of fiber ( SSA- special sesory afferent ) but olfactory nerve ( SVA ) -start at optic disc as converge of ganglion cells axons till optic chiasm – it’s also called optic tract because it’s all li ...