learning objectives for nervous tissue and nervous system
... 8. What organelle is not found in the axon? What is moved toward the axon terminal? What is kinesin and what does it do? 9. What is the difference between the myelin sheath and the neurolemma (sheath of Schwann)? What is the function of the myelin sheath? What produces the myelin sheath of the perip ...
... 8. What organelle is not found in the axon? What is moved toward the axon terminal? What is kinesin and what does it do? 9. What is the difference between the myelin sheath and the neurolemma (sheath of Schwann)? What is the function of the myelin sheath? What produces the myelin sheath of the perip ...
Olfactory processing: maps, time and codes Gilles Laurent
... degree, static, such as a short odor puff. Recent work on olfactory processing in insects from my laboratory [38,39••–41••,42,43] suggests that information about odor identity can indeed be obtained by considering not only the ‘spatial’ component of the response of ensembles of neurons (i.e. which n ...
... degree, static, such as a short odor puff. Recent work on olfactory processing in insects from my laboratory [38,39••–41••,42,43] suggests that information about odor identity can indeed be obtained by considering not only the ‘spatial’ component of the response of ensembles of neurons (i.e. which n ...
Chapter 2: The Biological Basis of Behavior
... A teacher grading papers opens the door of the room in which she has been working and becomes aware of loud rock music coming from her son's radio. When she asks him to turn it off, he asks why she is just noticing it now when he's had it on for over 20 minutes. Which of the following psychological ...
... A teacher grading papers opens the door of the room in which she has been working and becomes aware of loud rock music coming from her son's radio. When she asks him to turn it off, he asks why she is just noticing it now when he's had it on for over 20 minutes. Which of the following psychological ...
Nervous System Organization and Components
... a. Myelinated axons - the myelin sheath is formed around a short segment of axon as the neurilemmal cell wraps itself around the axon. The myelin sheath is composed alternating layers of the lipid and protein, which are remains of the cell membrane of the neurilemmal cell. The neurofibril nodes are ...
... a. Myelinated axons - the myelin sheath is formed around a short segment of axon as the neurilemmal cell wraps itself around the axon. The myelin sheath is composed alternating layers of the lipid and protein, which are remains of the cell membrane of the neurilemmal cell. The neurofibril nodes are ...
Mechanisms of excitability in the central and peripheral nervous
... The vast majority of the synaptic input projects on the dendrites rather than on the soma. One important function of dendrites is therefore to integrate synaptic input, which is influenced by numerous ion channels embedded in the cell membrane. Certain pathological conditions, such as epilepsy and c ...
... The vast majority of the synaptic input projects on the dendrites rather than on the soma. One important function of dendrites is therefore to integrate synaptic input, which is influenced by numerous ion channels embedded in the cell membrane. Certain pathological conditions, such as epilepsy and c ...
Nonlinear Population Codes - Department of Nonlinear Dynamics
... reecting the fact that the linear readout extracts information only from the mean responses. In fact, the slope of the LPV performance versus N, equation 1.20, is smaller than that of Jmean , equation 1.12, since due to the smoothness of the LPV weights, it is sensitive only to the low Fourier comp ...
... reecting the fact that the linear readout extracts information only from the mean responses. In fact, the slope of the LPV performance versus N, equation 1.20, is smaller than that of Jmean , equation 1.12, since due to the smoothness of the LPV weights, it is sensitive only to the low Fourier comp ...
Bidirectional propagation of Action potentials
... porebuilding proteins called ion channels. Consequently K+ ions diffuse down the ion gradient and leed to a negative charge inside the cell, consequently maintain the resting potential. If it is possible to change the membrane potential rapidly, the cell is excitable, such as nerves and muscles. A r ...
... porebuilding proteins called ion channels. Consequently K+ ions diffuse down the ion gradient and leed to a negative charge inside the cell, consequently maintain the resting potential. If it is possible to change the membrane potential rapidly, the cell is excitable, such as nerves and muscles. A r ...
Document
... on the skull tell us nothing about the brain’s underlying functions. Nevertheless, some of Gall’s assumptions have held true. Different parts of the brain do control different aspects of behavior, as you will see throughout this unit. ...
... on the skull tell us nothing about the brain’s underlying functions. Nevertheless, some of Gall’s assumptions have held true. Different parts of the brain do control different aspects of behavior, as you will see throughout this unit. ...
1749-7221-5-5-S2
... MAY HAVE LIMITED FUNCTION BECAUSE OF THE FORMATION OF MORE NUMEROUS BUT THINNER AND LESS MYELINATED AXONS. ...
... MAY HAVE LIMITED FUNCTION BECAUSE OF THE FORMATION OF MORE NUMEROUS BUT THINNER AND LESS MYELINATED AXONS. ...
Full-Text PDF
... brain stimulation (DBS), optogenetics, transcranial magnetic stimulation (TMS), intracellular electrical stimulation, and extracellular electrical stimulation. Some activation modalities are inherently selective, such as optogenetics or intracellular activation, but these techniques are largely limi ...
... brain stimulation (DBS), optogenetics, transcranial magnetic stimulation (TMS), intracellular electrical stimulation, and extracellular electrical stimulation. Some activation modalities are inherently selective, such as optogenetics or intracellular activation, but these techniques are largely limi ...
Understanding-Psychology-8th-Edition-Morris-Test-Bank
... How can the nervous system represent increases in the intensity of a stimulus? a. Only by an increase in the size of the action potential in each neuron that fires. b. Only by an increase in the number of neurons being fired. c. Only by an increase in the frequency of firing in each neuron. d. By in ...
... How can the nervous system represent increases in the intensity of a stimulus? a. Only by an increase in the size of the action potential in each neuron that fires. b. Only by an increase in the number of neurons being fired. c. Only by an increase in the frequency of firing in each neuron. d. By in ...
Denes et al. 2007 - Philosophical Transactions of the Royal Society B
... One contribution of 17 to a Discussion Meeting Issue ‘Evolution of the animals: a Linnean tercentenary celebration’. ...
... One contribution of 17 to a Discussion Meeting Issue ‘Evolution of the animals: a Linnean tercentenary celebration’. ...
Lesson Plan - University of Washington
... Background: The nervous system operates by taking in natural stimuli (sound, vision, touch, etc.) and responding in the form of electrical action potentials among groups of neurons. The nature of this stimulus-response relationship is dependent on both input into the system (stimuli) and the output ...
... Background: The nervous system operates by taking in natural stimuli (sound, vision, touch, etc.) and responding in the form of electrical action potentials among groups of neurons. The nature of this stimulus-response relationship is dependent on both input into the system (stimuli) and the output ...
PowerPoint-Präsentation
... (n-1) < t < n. This choice requires a central clock or pacemaker and is sensitive to timing errors. Asynchronous or Sequential (more natural for both brains and artificial networks) All neurons are updated one by one, where one can proceed in either of two ways: at each time step, select at random a ...
... (n-1) < t < n. This choice requires a central clock or pacemaker and is sensitive to timing errors. Asynchronous or Sequential (more natural for both brains and artificial networks) All neurons are updated one by one, where one can proceed in either of two ways: at each time step, select at random a ...
Effect of dopamine receptor stimulation on voltage
... with a protein kinase A inhibitor, (H-89, 2 µM). In recordings performed from mechanically and enzymatically dispersed pyramidal neurons in the whole-cell configuration, when the cell interior was dialysed with pipette solution, application of the D1/5 agonist decreased the Na+ current amplitude wit ...
... with a protein kinase A inhibitor, (H-89, 2 µM). In recordings performed from mechanically and enzymatically dispersed pyramidal neurons in the whole-cell configuration, when the cell interior was dialysed with pipette solution, application of the D1/5 agonist decreased the Na+ current amplitude wit ...
Sensory Receptors, Neuronal Circuits for Processing Information
... Table 46–1 lists and classifies most of the body’s sensory receptors. This table shows that there are five basic types of sensory receptors: (1) mechanoreceptors, which detect mechanical compression or stretching of the receptor or of tissues adjacent to the receptor; (2) thermoreceptors, which dete ...
... Table 46–1 lists and classifies most of the body’s sensory receptors. This table shows that there are five basic types of sensory receptors: (1) mechanoreceptors, which detect mechanical compression or stretching of the receptor or of tissues adjacent to the receptor; (2) thermoreceptors, which dete ...
Ch 48 49 Notes - Dublin City Schools
... 6. Neurotransmitter diffuses out of cleft, taken up by surrounding cells or is degraded by an enzyme. Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... 6. Neurotransmitter diffuses out of cleft, taken up by surrounding cells or is degraded by an enzyme. Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
Chapter 13
... C.One increases and one inhibits actions of the organ. D.One is sensory and one is motor. 42. Which of these is the best analysis of the function of the autonomic nervous system? A.Conscious control of muscle movements is coordinated with sensory stimuli. B.It controls muscle movements that are prim ...
... C.One increases and one inhibits actions of the organ. D.One is sensory and one is motor. 42. Which of these is the best analysis of the function of the autonomic nervous system? A.Conscious control of muscle movements is coordinated with sensory stimuli. B.It controls muscle movements that are prim ...
Mapping Function Onto Neuronal Morphology
... 2.4-GHz processor. All simulations were run on this processor under Windows XP or on an Athlon AMD 1.7 GHz processor under Linux. The optimization of neural structure used in this study is divided into four separate but linked processes. These are the construction of the model neuron morphologies, t ...
... 2.4-GHz processor. All simulations were run on this processor under Windows XP or on an Athlon AMD 1.7 GHz processor under Linux. The optimization of neural structure used in this study is divided into four separate but linked processes. These are the construction of the model neuron morphologies, t ...
Noise in Neurons and Other Constraints
... unchecked results in the build-up of correlated noise. Moreover, the whole nervous system operates in a continuous closed loop with the environment: from perception to action and back (see Fig. 8.2). Given this highly recurrent structure at all levels of biological organisation it is therefore impor ...
... unchecked results in the build-up of correlated noise. Moreover, the whole nervous system operates in a continuous closed loop with the environment: from perception to action and back (see Fig. 8.2). Given this highly recurrent structure at all levels of biological organisation it is therefore impor ...
Document
... • is a short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called excitable cells, which include neurons, muscle cells, and endocrine cells, • is generated by sp ...
... • is a short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called excitable cells, which include neurons, muscle cells, and endocrine cells, • is generated by sp ...
Emergence of Mirror Neurons in a Model of Gaze Following
... C. Formation of mirror neurons in the pre-motor area At the end of the learning process, the model neurons in layer 9 share many characteristics with classical mirror neurons. First, a unit in this layer will usually be active during the execution of a gaze shift to a certain location in space. This ...
... C. Formation of mirror neurons in the pre-motor area At the end of the learning process, the model neurons in layer 9 share many characteristics with classical mirror neurons. First, a unit in this layer will usually be active during the execution of a gaze shift to a certain location in space. This ...
Lack of response suppression follows repeated ventral tegmental
... CB1 receptors. More recently, biochemical and whole-cell voltage-clamp studies carried out on CB1-transfected AtT20 cells have shown a rapid desensitization of these receptors following activation of protein kinase C by 4-a-phorbol. To investigate the possible physiological correlates of this phenom ...
... CB1 receptors. More recently, biochemical and whole-cell voltage-clamp studies carried out on CB1-transfected AtT20 cells have shown a rapid desensitization of these receptors following activation of protein kinase C by 4-a-phorbol. To investigate the possible physiological correlates of this phenom ...