Autonomic Nervous System
... • Concerned with the innervation and control of visceral organs, smooth muscles and glands • Along with the endocrine system, its primary function is homeostasis of the internal environment • The majority of the activities of the autonomic system do not impinge on consciousness • The control exerted ...
... • Concerned with the innervation and control of visceral organs, smooth muscles and glands • Along with the endocrine system, its primary function is homeostasis of the internal environment • The majority of the activities of the autonomic system do not impinge on consciousness • The control exerted ...
Stereological estimation of dendritic coverage in the capybara SCG
... Evidence suggests that there is a correlation between average size of central and autonomic neurons and body size and between total number of the neurons and body size [6-9]. As an example, a comparison of the SCGs of rat, capybara and horse revealed that the volume of SCG is 0.5 mm3 in rats, 226 mm ...
... Evidence suggests that there is a correlation between average size of central and autonomic neurons and body size and between total number of the neurons and body size [6-9]. As an example, a comparison of the SCGs of rat, capybara and horse revealed that the volume of SCG is 0.5 mm3 in rats, 226 mm ...
Paying attention to correlated neural activity
... A rose by any other name No two roses smell exactly alike, yet we still perceive their scents as being the same. Most natural odors are made up of odorant mixtures that evoke complex patterns of neural activity, and it is rare for an odor to have the exact same components in the exact same proportio ...
... A rose by any other name No two roses smell exactly alike, yet we still perceive their scents as being the same. Most natural odors are made up of odorant mixtures that evoke complex patterns of neural activity, and it is rare for an odor to have the exact same components in the exact same proportio ...
Neural Coding: Higher Order Temporal Patterns in the
... is based on the use of cross correlation techniques, usually applied to the activity of pairs (sometimes triplets) of neurons recorded under appropriate stimulus conditions. The result is a time-averaged measure of the temporal correlation among the spiking events of the observed neurons under thos ...
... is based on the use of cross correlation techniques, usually applied to the activity of pairs (sometimes triplets) of neurons recorded under appropriate stimulus conditions. The result is a time-averaged measure of the temporal correlation among the spiking events of the observed neurons under thos ...
Chapter 02 - Neurons and Glia
... altered gene expression would be useful. Samples of mRNA were collected from Nicolas’s brain and from a normal brain so that comparisons could be made. mRNAs from the two brains were labeled green and red, respectively. 1) Why is it useful to test differences in gene expression? 2) What happens when ...
... altered gene expression would be useful. Samples of mRNA were collected from Nicolas’s brain and from a normal brain so that comparisons could be made. mRNAs from the two brains were labeled green and red, respectively. 1) Why is it useful to test differences in gene expression? 2) What happens when ...
Biological Cybernetics
... of large receptive fields in the periphery of the visual field leads to a lateral increase in resolution compared with the situation of curve 1, where all receptive fields are assumed to have the same size. These findings suggest that the large receptive field neurons that are found in urodeles as w ...
... of large receptive fields in the periphery of the visual field leads to a lateral increase in resolution compared with the situation of curve 1, where all receptive fields are assumed to have the same size. These findings suggest that the large receptive field neurons that are found in urodeles as w ...
Computational principles underlying recognition
... the input–output-function of a neuron. The way a linear filter works is demonstrated schematically in Fig. 2. The filter is shifted along the stimulus from left to right (Fig. 2a). At each point in time, the filter is multiplied with the current stimulus (1–4 in Fig. 2a) and the point-wise product o ...
... the input–output-function of a neuron. The way a linear filter works is demonstrated schematically in Fig. 2. The filter is shifted along the stimulus from left to right (Fig. 2a). At each point in time, the filter is multiplied with the current stimulus (1–4 in Fig. 2a) and the point-wise product o ...
Electrical Interactions via the Extracellular Potential Near Cell Bodies
... Abstract. Ephaptic interactions between a neuron and axons or dendrites passing by its cell body can be, in principle, more significant than ephaptic interactions among axons in a fiber tract. Extracellular action potentials outside axons are small in amplitude and spatially spread out, while they a ...
... Abstract. Ephaptic interactions between a neuron and axons or dendrites passing by its cell body can be, in principle, more significant than ephaptic interactions among axons in a fiber tract. Extracellular action potentials outside axons are small in amplitude and spatially spread out, while they a ...
Dorsal Column Nuclei Neurons Recorded in a Brain Stem–Spinal
... receptors are expressed by all neurons in the DCN (Propratiloff et al. 1997). However, the exact nature of the fast response evoked by dorsal root stimulation and the effect of selective excitatory amino acid receptor antagonists has yet to be determined. This was the first aim of the study. Inhibit ...
... receptors are expressed by all neurons in the DCN (Propratiloff et al. 1997). However, the exact nature of the fast response evoked by dorsal root stimulation and the effect of selective excitatory amino acid receptor antagonists has yet to be determined. This was the first aim of the study. Inhibit ...
1. Materials and Methods
... were found to fall within the 3 categories illustrated in Figure 2. These categories are not sharply delimited: some cells show intermediate behaviours. ...
... were found to fall within the 3 categories illustrated in Figure 2. These categories are not sharply delimited: some cells show intermediate behaviours. ...
7A Nervous System
... Gray matter – _______ ______ and ___________ fibers Nuclei – clusters of cell bodies within the white matter of the central nervous system __________ – collections of cell bodies ________ the central nervous system ...
... Gray matter – _______ ______ and ___________ fibers Nuclei – clusters of cell bodies within the white matter of the central nervous system __________ – collections of cell bodies ________ the central nervous system ...
Synaptic energy efficiency in retinal processing
... The receptive fields of retinal ganglion cells have traditionally been modelled by a difference of Gaussian function. To enable quantitative comparison, the filters resulting from simulations were fitted with a difference of Gaussian model DoGðdÞ ¼ kc exp½ðd=rc Þ2 ks exp½ðd=rs Þ2 , where d is th ...
... The receptive fields of retinal ganglion cells have traditionally been modelled by a difference of Gaussian function. To enable quantitative comparison, the filters resulting from simulations were fitted with a difference of Gaussian model DoGðdÞ ¼ kc exp½ðd=rc Þ2 ks exp½ðd=rs Þ2 , where d is th ...
Paying attention to correlated neural activity
... A rose by any other name No two roses smell exactly alike, yet we still perceive their scents as being the same. Most natural odors are made up of odorant mixtures that evoke complex patterns of neural activity, and it is rare for an odor to have the exact same components in the exact same proportio ...
... A rose by any other name No two roses smell exactly alike, yet we still perceive their scents as being the same. Most natural odors are made up of odorant mixtures that evoke complex patterns of neural activity, and it is rare for an odor to have the exact same components in the exact same proportio ...
- Philsci
... the synaptic membrane from the neighboring neuron. The neurotransmitter rapidly diffuses across this cleft. When it reaches the membrane of the neighboring neuron, it binds to specific receptors that cause a depolarization of the membrane. The result is a so-called synaptic potential. If this potent ...
... the synaptic membrane from the neighboring neuron. The neurotransmitter rapidly diffuses across this cleft. When it reaches the membrane of the neighboring neuron, it binds to specific receptors that cause a depolarization of the membrane. The result is a so-called synaptic potential. If this potent ...
NF- Protocadherin in the Neural Tube
... organize and differentiate into motor and interneurons which then project axons to their perspective targets. This process is mediated, in part, by cell to cell contacts. One group of cell adhesion proteins, the cadherins, are known to be involved in organizing motor neurons into motor pools along w ...
... organize and differentiate into motor and interneurons which then project axons to their perspective targets. This process is mediated, in part, by cell to cell contacts. One group of cell adhesion proteins, the cadherins, are known to be involved in organizing motor neurons into motor pools along w ...
Abstract Browser - The Journal of Neuroscience
... The emergence of motor deficits after cerebellar damage indicates that the cerebellum is involved in producing smooth, continuous ...
... The emergence of motor deficits after cerebellar damage indicates that the cerebellum is involved in producing smooth, continuous ...
Micro Muscle: Muscle signal response and myosin activity
... Muscle fibers begin to contract when they receive signals from the nervous system to do so. Many different aspects of physiology interact to allow this to take place. Recall from the nervous system is made up of networks of nervous tissue. This nervous tissue is made of cells called neurons that can ...
... Muscle fibers begin to contract when they receive signals from the nervous system to do so. Many different aspects of physiology interact to allow this to take place. Recall from the nervous system is made up of networks of nervous tissue. This nervous tissue is made of cells called neurons that can ...
The Neural Control of Speech
... and refined a neural network model whose components correspond to brain regions involved in speech. Babbling and imitation phases are used to train neural mappings between phonological, articulatory, auditory, and somatosensory representations. After learning, the model can produce combinations of t ...
... and refined a neural network model whose components correspond to brain regions involved in speech. Babbling and imitation phases are used to train neural mappings between phonological, articulatory, auditory, and somatosensory representations. After learning, the model can produce combinations of t ...
Simulations of the Role of the Muscarinic-Activated Calcium- I in Entorhinal Neuronal
... The passive parameters are as follows: RM , 5.0 ⍀m 2; RA , 1.0 ⍀m; CM , 0.01 F/m 2. The value of the membrane reversal potential Em depends on contributions from leakage Na ⫹ and leakage C l ⫺ currents. (The K ⫹ leak current is explicitly represented as a separate current.) One may also view synapti ...
... The passive parameters are as follows: RM , 5.0 ⍀m 2; RA , 1.0 ⍀m; CM , 0.01 F/m 2. The value of the membrane reversal potential Em depends on contributions from leakage Na ⫹ and leakage C l ⫺ currents. (The K ⫹ leak current is explicitly represented as a separate current.) One may also view synapti ...
Jumpin` the Gap - Teach Genetics (Utah)
... waste disposal, information feedback, and even movement. In addition, most cells in multicellular organisms perform some special functions that others do not. The Human Organism • Basic Functions » The nervous system works by electrochemical signals in the nerves and from one nerve to the next. The ...
... waste disposal, information feedback, and even movement. In addition, most cells in multicellular organisms perform some special functions that others do not. The Human Organism • Basic Functions » The nervous system works by electrochemical signals in the nerves and from one nerve to the next. The ...
Chapter 6 The peripheral nervous system Unit
... parts of the nervous system are the central nervous system (discussed in Chapter 5) and the peripheral nervous system. The central nervous system, the control centre, consists of the brain and spinal cord, while the nerves that connect the central nervous system with the receptors, muscles and gland ...
... parts of the nervous system are the central nervous system (discussed in Chapter 5) and the peripheral nervous system. The central nervous system, the control centre, consists of the brain and spinal cord, while the nerves that connect the central nervous system with the receptors, muscles and gland ...
Spontaneous firing patterns of identified spiny neurons in the rat
... neurons. The ranges of variability were similar in the two groups and both contained cells whose activity could be described as tonic or phasic from a cursory examination on the oscilloscope screen. When examined using interval histograms and autocorrelograms, however, nearly all neurons of both typ ...
... neurons. The ranges of variability were similar in the two groups and both contained cells whose activity could be described as tonic or phasic from a cursory examination on the oscilloscope screen. When examined using interval histograms and autocorrelograms, however, nearly all neurons of both typ ...
Dopamine control of pyramidal neuron activity in the primary motor
... (GC 100 FS, Harvard Apparatus, England) filled with either quinpirole 100 µM, quinpirole 1 µM or artificial cerebrospinal fluid (ACSF) that was lowered close to the tip of the recording pipette. After a 5 minutes baseline recording, the drug was applied by air pressure and neuronal firing was monito ...
... (GC 100 FS, Harvard Apparatus, England) filled with either quinpirole 100 µM, quinpirole 1 µM or artificial cerebrospinal fluid (ACSF) that was lowered close to the tip of the recording pipette. After a 5 minutes baseline recording, the drug was applied by air pressure and neuronal firing was monito ...
PDF
... simpler neural network models. Although these models are not as realiitic as that of [l], they have the advantage that we can derive analytic expressions for the wave velocity. This allows us to see what combination of parameters is actually being determined when the wave propagation velocity is mea ...
... simpler neural network models. Although these models are not as realiitic as that of [l], they have the advantage that we can derive analytic expressions for the wave velocity. This allows us to see what combination of parameters is actually being determined when the wave propagation velocity is mea ...