Receptive-Field Characteristics of Neurons in Cat
... neurons had cell-like action potentials (6). It is possible, even using these criteria, that these two neurons may have been fibers from the interlaminar layers of the lateral geniculate nucleus (39). While many of our cortical neurons responded to a very wide range of stimulus orientations, all but ...
... neurons had cell-like action potentials (6). It is possible, even using these criteria, that these two neurons may have been fibers from the interlaminar layers of the lateral geniculate nucleus (39). While many of our cortical neurons responded to a very wide range of stimulus orientations, all but ...
Neuronal Replacement and Reconstruction of Damaged Circuitries
... exhibit a more protracted neurogenesis, such as cerebral cortex and hippocampus, can be grafted with goodresults from a wider range of donor ages (up to days 20-22of gestation), althoughthe final size, the intrinsic architecture, and the survival rate of the grafts can be quite different in grafts t ...
... exhibit a more protracted neurogenesis, such as cerebral cortex and hippocampus, can be grafted with goodresults from a wider range of donor ages (up to days 20-22of gestation), althoughthe final size, the intrinsic architecture, and the survival rate of the grafts can be quite different in grafts t ...
influences of the glial environment on the
... Neurosciencet Unit, The Montreal General Hospital and McGill University ...
... Neurosciencet Unit, The Montreal General Hospital and McGill University ...
Neurons - LPS.org
... more likely to fire. Other times, neurotransmitters have an inhibitory effect, which means their arrival makes a neuron less likely to generate an action potential. The excitatory role is like a green light. It shouts, “Just do it!” The inhibitory role is like a red light. Its message is “Just say n ...
... more likely to fire. Other times, neurotransmitters have an inhibitory effect, which means their arrival makes a neuron less likely to generate an action potential. The excitatory role is like a green light. It shouts, “Just do it!” The inhibitory role is like a red light. Its message is “Just say n ...
Target-cell-specific concentration of a metabotropic glutamate
... have at least a ten· fold higher level of presynaptic mGluR7 than terminals making synapses with pyramidal cells and other types of interneuron. Distinct levels of mGluR7 are fo und at different synapses made by individual pyramidal axons or even single boutons. These results raise the possibility t ...
... have at least a ten· fold higher level of presynaptic mGluR7 than terminals making synapses with pyramidal cells and other types of interneuron. Distinct levels of mGluR7 are fo und at different synapses made by individual pyramidal axons or even single boutons. These results raise the possibility t ...
Signaling by truncated Dab1 protein - Development
... 1997a) in order to change the orientation of the cDNA relative to the polylinker. The BglII site is in the open reading frame of Dab1, 5′ to the p45-specific exon, and the PstI site is in the 3′ untranslated region. The knock-in vector contains the p45 cDNA (from the second coding exon), followed by ...
... 1997a) in order to change the orientation of the cDNA relative to the polylinker. The BglII site is in the open reading frame of Dab1, 5′ to the p45-specific exon, and the PstI site is in the 3′ untranslated region. The knock-in vector contains the p45 cDNA (from the second coding exon), followed by ...
Motion sensitive cells in the macaque superior
... handle to the turntable a.nd another used for detecting the rotation of the handle. The latter wheel was covered with 48 evenly distributed silver/black stripes. A light detector system positione, d over the wheel detected the changes in light reflectance and was used to generate a short (1 ms) puls ...
... handle to the turntable a.nd another used for detecting the rotation of the handle. The latter wheel was covered with 48 evenly distributed silver/black stripes. A light detector system positione, d over the wheel detected the changes in light reflectance and was used to generate a short (1 ms) puls ...
Prefrontal cortex in humans and apes: A comparative study of area 10
... size of cortical layers, the stain intensity, and the size of cells are described in relation to each other (e.g., when a cortical layer is identified as “thin,” this means that it is thin in relation to the size of the other layers). A quantitative investigation is presented later. Human. The front ...
... size of cortical layers, the stain intensity, and the size of cells are described in relation to each other (e.g., when a cortical layer is identified as “thin,” this means that it is thin in relation to the size of the other layers). A quantitative investigation is presented later. Human. The front ...
Odorant-induced Oscillations in the Mushroom Bodies of
... on the mushroom bodies have been carried out in the context of olfactory processing and learning, for the mushroom bodies are the main target neuropil of olfactory projection interneurons that originate in the glomerular antenna1 lobes (Christensen and Hildebrand, 1987; Masson and Mustaparta, 1990). ...
... on the mushroom bodies have been carried out in the context of olfactory processing and learning, for the mushroom bodies are the main target neuropil of olfactory projection interneurons that originate in the glomerular antenna1 lobes (Christensen and Hildebrand, 1987; Masson and Mustaparta, 1990). ...
Olfactory System Anatomy
... consisting of mitral cell dendritic arborizations (glomeruli), olfactory nerve fibers, and periglomerular cells. Periglomerular cells contact multiple mitral cell dendrites within the glomeruli and provide lateral inhibition of neighboring glomeruli while allowing excitation of a specific mitral cel ...
... consisting of mitral cell dendritic arborizations (glomeruli), olfactory nerve fibers, and periglomerular cells. Periglomerular cells contact multiple mitral cell dendrites within the glomeruli and provide lateral inhibition of neighboring glomeruli while allowing excitation of a specific mitral cel ...
Connexin-based channels contribute to metabolic pathways in the
... take up glucose through Gluts and provide the metabolite lactate for neurons through the ‘MCT-mediated astrocyte neuron lactate shuttle’ (Pellerin and Magistretti, 1994, 2012). Similarly, oligodendrocytes can absorb extracellular glucose and/or lactate through Glut1 (also known as SLC2A1) and MCT1, ...
... take up glucose through Gluts and provide the metabolite lactate for neurons through the ‘MCT-mediated astrocyte neuron lactate shuttle’ (Pellerin and Magistretti, 1994, 2012). Similarly, oligodendrocytes can absorb extracellular glucose and/or lactate through Glut1 (also known as SLC2A1) and MCT1, ...
“Black” Responses Dominate Macaque Primary Visual Cortex
... difference between the estimated unit distance between lesion sites and the physical unit distance between two parallel electrodes (which was relatively constant across layers, see Fig. 2 A) was ⬍5% of the average unit distance from the two measures. Therefore, factors such as the shrinkage of the b ...
... difference between the estimated unit distance between lesion sites and the physical unit distance between two parallel electrodes (which was relatively constant across layers, see Fig. 2 A) was ⬍5% of the average unit distance from the two measures. Therefore, factors such as the shrinkage of the b ...
Plasticity in the Nervous System of Adult Hydra. III. Conversion of
... determining if there were temporal changesin the regional distribution of the VLI+ subset in two circumstances. The general schemeof the experiment is shown in Figure 4A. Neurons arise by differentiation from stem cells among the interstitial cells (David and Murphy, 1977). Becauseall interstitial c ...
... determining if there were temporal changesin the regional distribution of the VLI+ subset in two circumstances. The general schemeof the experiment is shown in Figure 4A. Neurons arise by differentiation from stem cells among the interstitial cells (David and Murphy, 1977). Becauseall interstitial c ...
lmmunocytochemical Mapping of 18236, A Brain
... antigens said to be limited to the rat limbic system (Levitt, 1984) and vertebrate visual system (Hendry et al., 1984a), no known neural markers identify functionally defined neuronal systems, An alternative approach to the special, but unknown, properties of neurons, both generally and individually ...
... antigens said to be limited to the rat limbic system (Levitt, 1984) and vertebrate visual system (Hendry et al., 1984a), no known neural markers identify functionally defined neuronal systems, An alternative approach to the special, but unknown, properties of neurons, both generally and individually ...
The migration of neural crest cells and the growth of
... into chick embryos (Le Douarin, 1973; Le Douarin & Teillet, 1974). The approximate pathway of neural crest migration has also been elucidated, using this and a variety of other anatomical techniques. Recently, it has been possible to analyse the migration of crest cells with greater precision using ...
... into chick embryos (Le Douarin, 1973; Le Douarin & Teillet, 1974). The approximate pathway of neural crest migration has also been elucidated, using this and a variety of other anatomical techniques. Recently, it has been possible to analyse the migration of crest cells with greater precision using ...
The hippocampo-cortical loop: Spatio
... & Poucet, in press). This finding suggests that, once the task is well learned by the animal, normal function of mPFC is not required. ...
... & Poucet, in press). This finding suggests that, once the task is well learned by the animal, normal function of mPFC is not required. ...
I. MITRAL CELLS OF THE OLFACTORY BULB OF THE LIZARD S. Llahi,
... the mitral cell layer of the AOB is worse defined than that of the MOB. Neither in the olfactory bulb of teleosts (Oka, 1983) and turtles (Orrego, 1961) nor in the AOB of mammals (Lohman and Lammers, 1967) the mitral cell layer shows clearcut boundaries. Mitral cell layer of both olfactory areas are ...
... the mitral cell layer of the AOB is worse defined than that of the MOB. Neither in the olfactory bulb of teleosts (Oka, 1983) and turtles (Orrego, 1961) nor in the AOB of mammals (Lohman and Lammers, 1967) the mitral cell layer shows clearcut boundaries. Mitral cell layer of both olfactory areas are ...
The Biological Perspective
... myelin sheath does for the axons. Bundled all together, they form a cable that is much stronger and less vulnerable to breakage than any wire alone would be. It works the same way in the nervous system. Bundles of myelin-coated axons travel together in “cables” called nerves. A few other facts about ...
... myelin sheath does for the axons. Bundled all together, they form a cable that is much stronger and less vulnerable to breakage than any wire alone would be. It works the same way in the nervous system. Bundles of myelin-coated axons travel together in “cables” called nerves. A few other facts about ...
Vestibular Function and Anatomy April 2004
... The otolithic organs are the utricle and saccule which are sensitive to linear acceleration. The saccule lies in the spherical recess on the medial wall of the vestibule. It is oriented in the vertical plane. The utricle lies in the elliptical recess on the medial wall of the vestibule and is orient ...
... The otolithic organs are the utricle and saccule which are sensitive to linear acceleration. The saccule lies in the spherical recess on the medial wall of the vestibule. It is oriented in the vertical plane. The utricle lies in the elliptical recess on the medial wall of the vestibule and is orient ...
Proliferation, differentiation and degeneration in the spinal ganglia
... is not sharp. This phase represents a relatively static condition, in distinction to the preceding and the following periods. The large differentiated cells grow in size and assume gradually their definite pseudo-unipolar form. The small cells grow likewise in size and acquire certain properties whi ...
... is not sharp. This phase represents a relatively static condition, in distinction to the preceding and the following periods. The large differentiated cells grow in size and assume gradually their definite pseudo-unipolar form. The small cells grow likewise in size and acquire certain properties whi ...
The role responses of expression and identity in the face
... Cowey and C. Heywood, personal communication, 1987), which may cause difficulties in perceiving social cues. Neurons responsive to faces could be part of a system for the independent extraction of identity and expression. These neurons are relatively insensitive to most manipulations of facial Stimu ...
... Cowey and C. Heywood, personal communication, 1987), which may cause difficulties in perceiving social cues. Neurons responsive to faces could be part of a system for the independent extraction of identity and expression. These neurons are relatively insensitive to most manipulations of facial Stimu ...
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.