Number, size and distribution of ganglion neurons in urinary bladder
... intensity of staining among the nerve cells, there is no evidence that any significant number of intramural neurons remained undetected. The cells which stained intensely were undoubtedly neurons owing to their typical morphology. Furthermore, the results of this study confirm those of Gabella (1990 ...
... intensity of staining among the nerve cells, there is no evidence that any significant number of intramural neurons remained undetected. The cells which stained intensely were undoubtedly neurons owing to their typical morphology. Furthermore, the results of this study confirm those of Gabella (1990 ...
A logical calculus of the ideas immanent in
... no free variable save those in its Arg, we shall say t h a t it is realizable in the n a r r o w sense if there exists a net $~ and a series of N~ in it such t h a t Nl(z~) .----. P r I ( N ~ , N ~ , . . . , z l , sa~) is t r u e of it, where sa~ has the f o r m N ( 0 ) . We shall call it realizable ...
... no free variable save those in its Arg, we shall say t h a t it is realizable in the n a r r o w sense if there exists a net $~ and a series of N~ in it such t h a t Nl(z~) .----. P r I ( N ~ , N ~ , . . . , z l , sa~) is t r u e of it, where sa~ has the f o r m N ( 0 ) . We shall call it realizable ...
Neurons in the corpus callosum of the cat during postnatal
... that the section thickness was 50 mm and the average cell diameter was 20.9 4.6 mm (n 10 neurons). The number of neurons per half CC was multiplied by two to obtain the total neuron number. In order to correct for the volumetric increase of the CC and to test for a dilution effect during develop ...
... that the section thickness was 50 mm and the average cell diameter was 20.9 4.6 mm (n 10 neurons). The number of neurons per half CC was multiplied by two to obtain the total neuron number. In order to correct for the volumetric increase of the CC and to test for a dilution effect during develop ...
Viewpoint - Columbia University
... spontaneous activity, so that their responses reflect the interaction of stimulus-driven inputs with this ongoing activity. How can robust behavioral dynamics emerge naturally out of the biophysics of spontaneously active, imprecisely specified networks of unreliable and heterogeneous neuronal eleme ...
... spontaneous activity, so that their responses reflect the interaction of stimulus-driven inputs with this ongoing activity. How can robust behavioral dynamics emerge naturally out of the biophysics of spontaneously active, imprecisely specified networks of unreliable and heterogeneous neuronal eleme ...
Abnormal Electric Activity Insertional Activity --Normal is 100
... --in normal muscle: incr voluntary effort incr rate of firing of indiv MUP initiation of discharges of additional MUP --recruitment pattern: relationship of rate of firing of individual potentials to number of potentials firing constant for a particular muscle --reduced recruitment: loss of MU ...
... --in normal muscle: incr voluntary effort incr rate of firing of indiv MUP initiation of discharges of additional MUP --recruitment pattern: relationship of rate of firing of individual potentials to number of potentials firing constant for a particular muscle --reduced recruitment: loss of MU ...
Mechanical Response Properties of A and C Primary Afferent
... probe was attached to the tip of the stimulator arm. Because the dural surface is curved, the stimulator was mounted on a universal joint to allow the probe angle to be made perpendicular to the dural surface at the stimulation site. One of three probe diameters (0.5, 0.8, or 1.1 mm) was selected fo ...
... probe was attached to the tip of the stimulator arm. Because the dural surface is curved, the stimulator was mounted on a universal joint to allow the probe angle to be made perpendicular to the dural surface at the stimulation site. One of three probe diameters (0.5, 0.8, or 1.1 mm) was selected fo ...
a14b NeuroPhysII
... is slow because movements of ions and of the gates of channel proteins take time and must occur before voltage regeneration occurs. Stimulus Myelin sheath ...
... is slow because movements of ions and of the gates of channel proteins take time and must occur before voltage regeneration occurs. Stimulus Myelin sheath ...
Anatomy Review - Interactive Physiology
... ________ or __________, and the signal can be modified as it passes from one neuron to the next. a. electrical synapses, excitatory, inhibitory b. chemical synapses, excitatory, inhibitory 29. (Page 7.) Chemical synapses are the most common type of ________, and they are associated with the most com ...
... ________ or __________, and the signal can be modified as it passes from one neuron to the next. a. electrical synapses, excitatory, inhibitory b. chemical synapses, excitatory, inhibitory 29. (Page 7.) Chemical synapses are the most common type of ________, and they are associated with the most com ...
Synaptic reverberation underlying mnemonic persistent activity
... excitatory connections in a recurrent network are sufficiently strong. It is only recently, beginning with the work by Amit and colleagues, that attractor network models have been implemented with realistic models of cortical neurons and synapses22–27. Figure 2 illustrates the biophysics of an attra ...
... excitatory connections in a recurrent network are sufficiently strong. It is only recently, beginning with the work by Amit and colleagues, that attractor network models have been implemented with realistic models of cortical neurons and synapses22–27. Figure 2 illustrates the biophysics of an attra ...
Science - Princeton University
... Of the remaining fields, chiefly ipsilateral ones were about as common as those largely confined to the contralateral field. We d o not yet have sufficient data to relate the anatomical locus of the neuron with the quadrants in which its receptive field fell. All units encountered were spontaneousl ...
... Of the remaining fields, chiefly ipsilateral ones were about as common as those largely confined to the contralateral field. We d o not yet have sufficient data to relate the anatomical locus of the neuron with the quadrants in which its receptive field fell. All units encountered were spontaneousl ...
Voluntary Nicotine Consumption Triggers Potentiation of Cortical Excitatory Drives to Midbrain
... histogram data. Firing rate and bursting activity of VTA DA neurons for the pump-NIC groups did not differ from pump-SAL. least 5 min. Subsequently, single pulses were Numbers refers to numbers of VTA DA neurons recorded. delivered to the ILCx every 2 s at increasing intensity. At least 100 trials w ...
... histogram data. Firing rate and bursting activity of VTA DA neurons for the pump-NIC groups did not differ from pump-SAL. least 5 min. Subsequently, single pulses were Numbers refers to numbers of VTA DA neurons recorded. delivered to the ILCx every 2 s at increasing intensity. At least 100 trials w ...
Sensory system evolution at the origin of craniates
... central pathways for ascending sensory system projections to the telencephalon were established. Any plausible scenario of craniate brain evolution must account for the gain of these multisynaptic central pathways, whichöas the general condition across craniates ö all exhibit the same pattern of org ...
... central pathways for ascending sensory system projections to the telencephalon were established. Any plausible scenario of craniate brain evolution must account for the gain of these multisynaptic central pathways, whichöas the general condition across craniates ö all exhibit the same pattern of org ...
Predictability Modulates Human Brain Response to Reward
... temporal-differences (TD), which postulates that a synaptically reinforcing substance, e.g. dopamine, is released in response to errors in reward prediction (Schultz et al., 1997). This model has been used in a wide variety of applications including complex learning tasks, like backgammon (Sutton, 1 ...
... temporal-differences (TD), which postulates that a synaptically reinforcing substance, e.g. dopamine, is released in response to errors in reward prediction (Schultz et al., 1997). This model has been used in a wide variety of applications including complex learning tasks, like backgammon (Sutton, 1 ...
Philosophy of Mind and Neuroscience: the Case of Mirror Neurons
... it means that a physical base property P is necessarily sufficient for the supervenient mental property M because supervenient properties depend or are determined on/by their subvenient species-specific properties and there’s an ontological identity between them, being instantiated in the same time ...
... it means that a physical base property P is necessarily sufficient for the supervenient mental property M because supervenient properties depend or are determined on/by their subvenient species-specific properties and there’s an ontological identity between them, being instantiated in the same time ...
Artificial Neural Network PPT
... The data is generally divided into three sets • Training data : These data are used by the training algorithm to set the ANN’s parameters, weights, and biases. Training data make up the largest set of data, comprising almost 80 percent of the data. • Testing data: This data set is used when the fina ...
... The data is generally divided into three sets • Training data : These data are used by the training algorithm to set the ANN’s parameters, weights, and biases. Training data make up the largest set of data, comprising almost 80 percent of the data. • Testing data: This data set is used when the fina ...
Synchronisation hubs in the visual cortex may arise from strong
... termed hubs, tended to synchronise particularly strongly and promiscuously with other area 17 neurons. Indeed, even neurons with differing orientation preferences tended to synchronise if they were hubs. Notably, neurons exhibiting sharp orientation tuning curves showed a strong likelihood of being ...
... termed hubs, tended to synchronise particularly strongly and promiscuously with other area 17 neurons. Indeed, even neurons with differing orientation preferences tended to synchronise if they were hubs. Notably, neurons exhibiting sharp orientation tuning curves showed a strong likelihood of being ...
CHAPTER 10: NERVOUS SYSTEM I
... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, and trigger an AP, which in turn begins an impulse on a neuron. a. +15 mV = threshold = AP = impulse b. +5, +5, +5, = +15 mV = threshold = AP = impulse. ...
... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, and trigger an AP, which in turn begins an impulse on a neuron. a. +15 mV = threshold = AP = impulse b. +5, +5, +5, = +15 mV = threshold = AP = impulse. ...
Estimating Fast Neural Input Using Anatomical and
... fast and slow chemical synapses, astrocytes, vasculatures, extracellular ions, ephaptic signals and gap junctions can be divided into a specific signal (blue, top) and a background signal (green, bottom). In this review article, we have focused on how to estimate the specific input from fast chemica ...
... fast and slow chemical synapses, astrocytes, vasculatures, extracellular ions, ephaptic signals and gap junctions can be divided into a specific signal (blue, top) and a background signal (green, bottom). In this review article, we have focused on how to estimate the specific input from fast chemica ...