Nervous Systems
... diffuse nerve net (Figure 49.2a), which controls the contraction and expansion of the gastrovascular cavity. Unlike the nervous systems of other animals, the nerve net of cnidarians lacks clusters of neurons that perform specialized functions. In more complex animals, the axons of multiple nerve ce ...
... diffuse nerve net (Figure 49.2a), which controls the contraction and expansion of the gastrovascular cavity. Unlike the nervous systems of other animals, the nerve net of cnidarians lacks clusters of neurons that perform specialized functions. In more complex animals, the axons of multiple nerve ce ...
Neural Coding 2016
... bridging disciplines and introducing theoretical ideas and methods to neuroscience research. This concept of combining theoretical and experimental approaches has proven highly successful and nowadays plays a pivotal role in the modern neurosciences. Research in neural coding covers neural represent ...
... bridging disciplines and introducing theoretical ideas and methods to neuroscience research. This concept of combining theoretical and experimental approaches has proven highly successful and nowadays plays a pivotal role in the modern neurosciences. Research in neural coding covers neural represent ...
PDF hosted at the Radboud Repository of the Radboud University Nijmegen
... Correîlogram +50 m s ...
... Correîlogram +50 m s ...
Efferent connections of the parabigeminal nucleus to the amygdala
... Pbg–Am neurons are concentrated in the central portion of Pbg, leaving the dorsal and ventral parts of the nucleus unlabeled (Fig. 1c). The crossed connection is more prominent. On the contralateral side the labeled neurons are located throughout the Pbg (Fig. 1d). The projection of Pbg to the SC is ...
... Pbg–Am neurons are concentrated in the central portion of Pbg, leaving the dorsal and ventral parts of the nucleus unlabeled (Fig. 1c). The crossed connection is more prominent. On the contralateral side the labeled neurons are located throughout the Pbg (Fig. 1d). The projection of Pbg to the SC is ...
Modulation of Sympathetic and Somatomotor Function by the
... The methods for all experiments were approved by the University of Chicago Institutional Animal Care and Use Committee and conformed to the guidelines of National Institutes of Health and the International Association for the Study of Pain. Male Sprague-Dawley rats (250 – 450 g; n ⫽ 110; Charles Riv ...
... The methods for all experiments were approved by the University of Chicago Institutional Animal Care and Use Committee and conformed to the guidelines of National Institutes of Health and the International Association for the Study of Pain. Male Sprague-Dawley rats (250 – 450 g; n ⫽ 110; Charles Riv ...
My Secret Role in True Happiness: A Story of a Neuron
... dopamine from my neighbor stopped. At first, I was elated that the constant overstimulation I had been feeling for years ceased. However, I soon began to feel an ache for the neurotransmitter. What small amount of dopamine I did receive was nearly impossible for me to take in because I had already c ...
... dopamine from my neighbor stopped. At first, I was elated that the constant overstimulation I had been feeling for years ceased. However, I soon began to feel an ache for the neurotransmitter. What small amount of dopamine I did receive was nearly impossible for me to take in because I had already c ...
Hello. I`m Michael Farries, a graduate student of David Perkel. I have
... globus pallidus/GPe, entopeduclular nucleus/GPi, ventral pallidum). There are some differences, of course, as one must expect for lineages that have been separate for 300 million years. For example, the avian pallidum (PP) doesn’t seem to be divided into internal and external segments as it is in ma ...
... globus pallidus/GPe, entopeduclular nucleus/GPi, ventral pallidum). There are some differences, of course, as one must expect for lineages that have been separate for 300 million years. For example, the avian pallidum (PP) doesn’t seem to be divided into internal and external segments as it is in ma ...
Photoreception
... Fig. 3. Autoradiogram of glutamate uptake through glutamate transporters (39 K jpeg image) Photoreceptors, which contain glutamate, actively take up radiolabeled glutamate from the extracellular space, as do Muller cells (Fig. 3) (Marc and Lam, 1981; Yang and Wu, 1997). Glutamate is incorporated int ...
... Fig. 3. Autoradiogram of glutamate uptake through glutamate transporters (39 K jpeg image) Photoreceptors, which contain glutamate, actively take up radiolabeled glutamate from the extracellular space, as do Muller cells (Fig. 3) (Marc and Lam, 1981; Yang and Wu, 1997). Glutamate is incorporated int ...
NIHMS263877-supplement-1
... measure of the activity from a single neuron, and the number of simulations, rather than the number of neurons in a single simulation, determines the number of neurons measured in the model. The results of implementing this scheme shows no qualitative difference with respect to considering a single ...
... measure of the activity from a single neuron, and the number of simulations, rather than the number of neurons in a single simulation, determines the number of neurons measured in the model. The results of implementing this scheme shows no qualitative difference with respect to considering a single ...
PDF file
... feature-dependant weighting of the various feature maps. The successful modeling of the “where” pathway, then, involves the integration of bottom-up and top-down cues, such as to provide coherent control signals for the focus of attention, and the interplay between attentional tuning and object reco ...
... feature-dependant weighting of the various feature maps. The successful modeling of the “where” pathway, then, involves the integration of bottom-up and top-down cues, such as to provide coherent control signals for the focus of attention, and the interplay between attentional tuning and object reco ...
Vertical Organization of r=Aminobutyric Acid
... oriented chains of silver grains linked the injection sites with the resulting labeled cell clusters. In all areas, the labeling of cells in the horizontal dimension, i.e., on each side of an injection, was insignificant. Electron microscopic examination of labeled neurons confirms that the neurons ...
... oriented chains of silver grains linked the injection sites with the resulting labeled cell clusters. In all areas, the labeling of cells in the horizontal dimension, i.e., on each side of an injection, was insignificant. Electron microscopic examination of labeled neurons confirms that the neurons ...
![[Frontiers in Bioscience 8, s438-451, May 1, 2003] 438 AROUSAL](http://s1.studyres.com/store/data/005320946_1-6eb469e446a066f466aecf70147008ff-300x300.png)
nn1-02
... Course Summary After a short introduction to neurons, synapses, and the concept of learning (biological and statistical foundations of neural networks), the course covers • methods of supervised learning (perceptron and linear separability, backprop, radial basis functions and the problems of gener ...
... Course Summary After a short introduction to neurons, synapses, and the concept of learning (biological and statistical foundations of neural networks), the course covers • methods of supervised learning (perceptron and linear separability, backprop, radial basis functions and the problems of gener ...
Coding of Auditory-Stimulus Identity in the Auditory Non
... Russ BE, Ackelson AL, Baker AE, Cohen YE. Coding of auditorystimulus identity in the auditory non-spatial processing stream. J Neurophysiol 99: 87–95, 2008. First published November 14, 2007; doi:10.1152/jn.01069.2007. The neural computations that underlie the processing of auditory-stimulus identit ...
... Russ BE, Ackelson AL, Baker AE, Cohen YE. Coding of auditorystimulus identity in the auditory non-spatial processing stream. J Neurophysiol 99: 87–95, 2008. First published November 14, 2007; doi:10.1152/jn.01069.2007. The neural computations that underlie the processing of auditory-stimulus identit ...
Contributions of the Basal Amygdala Nuclei to Conditioned Fear
... BL–BM lesions had no effect, revealed that postconditioning lesions led to the abolition of conditioned fear responses (AngladaFigueroa and Quirk, 2005). This pattern of results suggested that in an intact brain, the basal nuclei are at least required to relay potentiated CS-evoked LA responses to C ...
... BL–BM lesions had no effect, revealed that postconditioning lesions led to the abolition of conditioned fear responses (AngladaFigueroa and Quirk, 2005). This pattern of results suggested that in an intact brain, the basal nuclei are at least required to relay potentiated CS-evoked LA responses to C ...
49-Nervous System - Northwest ISD Moodle
... diffuse nerve net (Figure 49.2a), which controls the contraction and expansion of the gastrovascular cavity. Unlike the nervous systems of other animals, the nerve net of cnidarians lacks clusters of neurons that perform specialized functions. In more complex animals, the axons of multiple nerve ce ...
... diffuse nerve net (Figure 49.2a), which controls the contraction and expansion of the gastrovascular cavity. Unlike the nervous systems of other animals, the nerve net of cnidarians lacks clusters of neurons that perform specialized functions. In more complex animals, the axons of multiple nerve ce ...
A cellular mechanism for cortical associations: an organizing
... red) causes no dendritic spike (red) and has virtually no impact at the cell body (blue). (Right, middle) A somatic action potential evoked with somatic current injection (Istim, blue) invades the dendritic tree but still causes no dendritic spike. (Right, bottom) Combined injection of the same dend ...
... red) causes no dendritic spike (red) and has virtually no impact at the cell body (blue). (Right, middle) A somatic action potential evoked with somatic current injection (Istim, blue) invades the dendritic tree but still causes no dendritic spike. (Right, bottom) Combined injection of the same dend ...
Neurulation I (Pevny)
... Median Hinge point is induced by signals from the notochord, experiments in mouse that Shh signaling that comes from the notochord inhibits DHP formation, if Shh is overexpressed (in transgenic mice or Ptc mutants) Dorsal hinge points do not form resulting in neural tube defects. The epidermal ectod ...
... Median Hinge point is induced by signals from the notochord, experiments in mouse that Shh signaling that comes from the notochord inhibits DHP formation, if Shh is overexpressed (in transgenic mice or Ptc mutants) Dorsal hinge points do not form resulting in neural tube defects. The epidermal ectod ...
Anatomy of Olivocochlear Neurons
... Both groups of OC neurons have fibers that branch extensively in the cochlea (Fig. 2.3). The end result of the branching is that a relatively small number of OC neurons gives rise to numerous synapses in the cochlea. LOC fibers synapse mainly on dendrites of auditory nerve fibers beneath IHCs. In th ...
... Both groups of OC neurons have fibers that branch extensively in the cochlea (Fig. 2.3). The end result of the branching is that a relatively small number of OC neurons gives rise to numerous synapses in the cochlea. LOC fibers synapse mainly on dendrites of auditory nerve fibers beneath IHCs. In th ...
A Beginner`s Guide to the Mathematics of Neural Networks
... membrane potential and ring state). Right: close-up of a typical synapse. decrease. In the rst case the arriving signal will increase the probability of the receiving neuron to start ring itself, therefore such a synapse is called excitatory. In the second case the arriving signal will decrease t ...
... membrane potential and ring state). Right: close-up of a typical synapse. decrease. In the rst case the arriving signal will increase the probability of the receiving neuron to start ring itself, therefore such a synapse is called excitatory. In the second case the arriving signal will decrease t ...
David H. Hubel - Nobel Lecture
... containing various sizes of holes into a slot in the apparatus, just as one puts a slide into a slide projector. To obtain a black spot on a light background one used a piece of glass like a microscope slide, onto which a black dot had been glued. All this was ideal for stimulating the retina and re ...
... containing various sizes of holes into a slot in the apparatus, just as one puts a slide into a slide projector. To obtain a black spot on a light background one used a piece of glass like a microscope slide, onto which a black dot had been glued. All this was ideal for stimulating the retina and re ...
Cells of the Nervous System
... A receptor molecule in the postsynaptic membrane of a synapse that contains a binding site for a neurotransmitter. neurotransmitter-dependent ion channel An ion channel that opens when a molecule of a neurotransmitter binds with a postsynaptic receptor. ionotropic receptor (eye on oh trow pik) A rec ...
... A receptor molecule in the postsynaptic membrane of a synapse that contains a binding site for a neurotransmitter. neurotransmitter-dependent ion channel An ion channel that opens when a molecule of a neurotransmitter binds with a postsynaptic receptor. ionotropic receptor (eye on oh trow pik) A rec ...
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.