Axon - Cloudfront.net
... generating and propagating ACTION POTENTIALS (AP). Only cells with excitable membranes (like muscle cells and neurons) can generate APs. ...
... generating and propagating ACTION POTENTIALS (AP). Only cells with excitable membranes (like muscle cells and neurons) can generate APs. ...
JAY McCLELLAND
... all animals have feet. – Even animals that look like small furry balls and don’t seem to have any feet at all. • A tendency to over-generalize properties typical of a superordinate category at an intermediate point in development is characteristic of the PDP network. ...
... all animals have feet. – Even animals that look like small furry balls and don’t seem to have any feet at all. • A tendency to over-generalize properties typical of a superordinate category at an intermediate point in development is characteristic of the PDP network. ...
Neuron Production, Neuron Number, and Structure Size Are
... made. Pearson correlations were calculated for the areas of both hemispheres (n ⫽ 12). The correlation coefficients were .981 and .899. The volumes of four control regions were also determined with a SPOT Insight Color video camera and SPOT Advanced imaging software (Diagnostic Instruments, Version ...
... made. Pearson correlations were calculated for the areas of both hemispheres (n ⫽ 12). The correlation coefficients were .981 and .899. The volumes of four control regions were also determined with a SPOT Insight Color video camera and SPOT Advanced imaging software (Diagnostic Instruments, Version ...
Anatomical origins of the classical receptive field and modulatory
... include different stimulus contrasts, hand- versus computer mapping, single small flashed bars or grating stimuli presented at different locations or expanded in size (Fig. 4). One reason for these differences is that certain techniques do not reveal the full spatial extent of visual sensitivity. Fo ...
... include different stimulus contrasts, hand- versus computer mapping, single small flashed bars or grating stimuli presented at different locations or expanded in size (Fig. 4). One reason for these differences is that certain techniques do not reveal the full spatial extent of visual sensitivity. Fo ...
An implantable electrode design for both chronic in vivo
... silicone is high enough to ensure equal distribution on the wire and to still be fast curing, yielding insulation within 5 min. The insulated wire was then cut into 4/5 cm long pieces, the length to cover the distance between the third abdominal segment and the hind third of the carapace, leaving e ...
... silicone is high enough to ensure equal distribution on the wire and to still be fast curing, yielding insulation within 5 min. The insulated wire was then cut into 4/5 cm long pieces, the length to cover the distance between the third abdominal segment and the hind third of the carapace, leaving e ...
artificial intelligence meets natural consciousness: is it possible to
... The new project Aim of the research is to test with an AI tool the interconnections among brain areas in presence of sensory and emotional stimuli, and show how similar stimuli give rise to chaotic attractors identified with identical or similar codes. We can process both individual signals and ...
... The new project Aim of the research is to test with an AI tool the interconnections among brain areas in presence of sensory and emotional stimuli, and show how similar stimuli give rise to chaotic attractors identified with identical or similar codes. We can process both individual signals and ...
BACOFUN_2016 Meeting Booklet - Barrel Cortex Function 2016
... While the axonal innervation pattern of these two nuclei has been studied anatomically in some detail, their synaptic input to distinct cell-types across different layers in barrel cortex is incompletely understood. We used the specificity of optogenetics to selectively stimulate axons from VPM or P ...
... While the axonal innervation pattern of these two nuclei has been studied anatomically in some detail, their synaptic input to distinct cell-types across different layers in barrel cortex is incompletely understood. We used the specificity of optogenetics to selectively stimulate axons from VPM or P ...
Structure of the central nervous system of a juvenile acoel
... neuropile, and axon bundles were segmented, after which they could be displayed as a 3D digital model. Note that, given the relatively large gaps between adjacent sections, counts of individual cells (in particular sensory receptors) are not particularly accurate, given that the size of the ciliated ...
... neuropile, and axon bundles were segmented, after which they could be displayed as a 3D digital model. Note that, given the relatively large gaps between adjacent sections, counts of individual cells (in particular sensory receptors) are not particularly accurate, given that the size of the ciliated ...
Single-trial decoding of intended eye movement goals from lateral
... target locations and calculating MI for 1,000 different shuffles. We labeled neurons as having significant target location information within an epoch if the MI was greater than 99% of the null values for that epoch. Neurons with significant MI during the baseline epoch were excluded from further ne ...
... target locations and calculating MI for 1,000 different shuffles. We labeled neurons as having significant target location information within an epoch if the MI was greater than 99% of the null values for that epoch. Neurons with significant MI during the baseline epoch were excluded from further ne ...
The Spinal Cord - Lightweight OCW University of Palestine
... process. The neuron is responsible for sending and receiving impulses or signals. Each nerve cell consist of: 1. Cell body (Soma): which contains the nucleus and the other organelles necessary for cellular function. 2. Several short processes called dendrites: are the region where one neuron receive ...
... process. The neuron is responsible for sending and receiving impulses or signals. Each nerve cell consist of: 1. Cell body (Soma): which contains the nucleus and the other organelles necessary for cellular function. 2. Several short processes called dendrites: are the region where one neuron receive ...
Reconstruction of the nigrostriatal dopamine pathway in the adult
... This may explain why functional recovery obtained with intrastriatal DA neuron grafts is incomplete in both patients (Lindvall & Hagell, 2000) and animal models of Parkinson’s disease (Annett et al., 1994; ...
... This may explain why functional recovery obtained with intrastriatal DA neuron grafts is incomplete in both patients (Lindvall & Hagell, 2000) and animal models of Parkinson’s disease (Annett et al., 1994; ...
important ascending tracts
... three neurons to convey sensory information from the periphery to conscious level at the cerebral cortex. Pseudounipolar neurons in the dorsal root ganglion have axons that lead from the skin into the dorsal spinal cord where they ascend or descend one or two vertebral levels via Lissauer's tract an ...
... three neurons to convey sensory information from the periphery to conscious level at the cerebral cortex. Pseudounipolar neurons in the dorsal root ganglion have axons that lead from the skin into the dorsal spinal cord where they ascend or descend one or two vertebral levels via Lissauer's tract an ...
Multifunctional Laryngeal Premotor Neurons: Their Activities during
... continue to be active, the glottis first constricts against forcible expiratory behavior to increase tracheal pressure (i.e., the compressive phase), then dilates transiently to release a burst of air that expels foreign bodies from the airways (i.e., the expulsive phase), and then constricts again ...
... continue to be active, the glottis first constricts against forcible expiratory behavior to increase tracheal pressure (i.e., the compressive phase), then dilates transiently to release a burst of air that expels foreign bodies from the airways (i.e., the expulsive phase), and then constricts again ...
Afferents of dopamine neurons
... The complexity and simplicity of dopamine neurons Dopamine neurons have a complex organisation and afferent input at level of SNC (normality) The projections of dopamine neurons are extremely complex and massive (complexity) Responses of dopamine neurons are relatively simple and uniform (simpli ...
... The complexity and simplicity of dopamine neurons Dopamine neurons have a complex organisation and afferent input at level of SNC (normality) The projections of dopamine neurons are extremely complex and massive (complexity) Responses of dopamine neurons are relatively simple and uniform (simpli ...
Central mechanisms of osmosensation and systemic osmoregulation
... anticipatory responses that might buffer the potential impact of ingestion-related osmotic perturbations61. Indeed, water intake causes satiety in thirsty humans and animals before ECF hyperosmolality is fully corrected27,62 (FIG. 4b). Similarly, gastric water loading has been shown to lower osmotic ...
... anticipatory responses that might buffer the potential impact of ingestion-related osmotic perturbations61. Indeed, water intake causes satiety in thirsty humans and animals before ECF hyperosmolality is fully corrected27,62 (FIG. 4b). Similarly, gastric water loading has been shown to lower osmotic ...
Replacement of Receptor Cells in the Hamster
... each animal measurements from the experimental side were expressed as a percentage of the control side (Table 1). Two to three hours after nerve transection (day 0) the number of receptor cells measured on the experimental side was similar to that on the control side (93% of control). By day 2 there ...
... each animal measurements from the experimental side were expressed as a percentage of the control side (Table 1). Two to three hours after nerve transection (day 0) the number of receptor cells measured on the experimental side was similar to that on the control side (93% of control). By day 2 there ...
2320lecture22
... Neural Correlates of Selection • Results: Neurons in visual system respond vigorously to certain stimuli but are then sharply suppressed if a different stimulus is selected by attention • Interpretation: this selection might be a neural correlate of the perceptual suppression of unattended informat ...
... Neural Correlates of Selection • Results: Neurons in visual system respond vigorously to certain stimuli but are then sharply suppressed if a different stimulus is selected by attention • Interpretation: this selection might be a neural correlate of the perceptual suppression of unattended informat ...
Thermal impact on spiking properties in Hodgkin–Huxley neuron
... factor of a = 3, whereas the maximum channel conductances, Gs, are multiplied by a Q10 factor of a = 1–1.5 (suggested in ref. [4]). The synaptic input is modeled by Isyn = gsyn (t)(V − Vsyn ) with Vsyn being the synaptic reversal potential and gsyn (t) the time-dependent post-synaptic conductance, g ...
... factor of a = 3, whereas the maximum channel conductances, Gs, are multiplied by a Q10 factor of a = 1–1.5 (suggested in ref. [4]). The synaptic input is modeled by Isyn = gsyn (t)(V − Vsyn ) with Vsyn being the synaptic reversal potential and gsyn (t) the time-dependent post-synaptic conductance, g ...
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.