35 | the nervous system
... endoplasmic reticulum, Golgi apparatus, mitochondria, and other cellular components. Neurons also contain unique structures, illustrated in Figure 35.3 for receiving and sending the electrical signals that make neuronal communication possible. Dendrites are tree-like structures that extend away from ...
... endoplasmic reticulum, Golgi apparatus, mitochondria, and other cellular components. Neurons also contain unique structures, illustrated in Figure 35.3 for receiving and sending the electrical signals that make neuronal communication possible. Dendrites are tree-like structures that extend away from ...
The Hermann grid illusion revisited
... the size of the receptors and their convergence onto the retinal ganglion cells. This being the case, according to the retinal ganglion cell theory one would expect that the illusory effect produced by the Hermann grid would be sharply confined to a specific size of the intersecting bar widths. Figu ...
... the size of the receptors and their convergence onto the retinal ganglion cells. This being the case, according to the retinal ganglion cell theory one would expect that the illusory effect produced by the Hermann grid would be sharply confined to a specific size of the intersecting bar widths. Figu ...
Visual Response Properties of Neurons in Four Extrastriate Visual
... these were excluded from the data analyses reported here. Assignment of units to extrastriate areas was based solely on receptive-field progressions and/or histological reconstructions, and all units that could be classified were included in the data analyses. The visual responses of extrastriate un ...
... these were excluded from the data analyses reported here. Assignment of units to extrastriate areas was based solely on receptive-field progressions and/or histological reconstructions, and all units that could be classified were included in the data analyses. The visual responses of extrastriate un ...
Post Embryonic Development of the Central Nervous System of the
... also show a linear growth rate (fig. 8). The volume of the SEG as compared to the volume of cortex in the brain and SEG brain. Unlike in the brain the reversal trend continues to increase through all stadia. An in growth rate of neuropile and cortex takes interesting aspect of cortex growth is cross ...
... also show a linear growth rate (fig. 8). The volume of the SEG as compared to the volume of cortex in the brain and SEG brain. Unlike in the brain the reversal trend continues to increase through all stadia. An in growth rate of neuropile and cortex takes interesting aspect of cortex growth is cross ...
Synaptic Transmission between Dorsal Root Ganglion and Dorsal
... mediated by L-glutamate or by compounds with similar postsynaptic actions. lontophoretic and pressure applications of L-glutamate depolarize the majority of mammalian spinal neurons in vivo and in vitro (Ransom et al., 1977b; Watkins and Evans, 1981; Salt and Hill, 1983) with a reversal potential (M ...
... mediated by L-glutamate or by compounds with similar postsynaptic actions. lontophoretic and pressure applications of L-glutamate depolarize the majority of mammalian spinal neurons in vivo and in vitro (Ransom et al., 1977b; Watkins and Evans, 1981; Salt and Hill, 1983) with a reversal potential (M ...
Mircea Steriade
... research scientist working toward a D.Sc. (Ph.D.) at the Institute of Neurology of the Romanian Academy of Sciences. It is vivid in my memory how puzzled I was when, a few days after entering that institute, I was asked to deliver a talk on iron metabolism. I had been ignorant of the fact that heavy ...
... research scientist working toward a D.Sc. (Ph.D.) at the Institute of Neurology of the Romanian Academy of Sciences. It is vivid in my memory how puzzled I was when, a few days after entering that institute, I was asked to deliver a talk on iron metabolism. I had been ignorant of the fact that heavy ...
OTTO LOEWI
... along the axon. It was actually making sense to imagine electrical synapses. Unfortunately there were three important arguments against such simple picture of the nervous system. The first is the unidirectional flow of information in a neural chain: this flow is always in the axo-dendritic or axo-so ...
... along the axon. It was actually making sense to imagine electrical synapses. Unfortunately there were three important arguments against such simple picture of the nervous system. The first is the unidirectional flow of information in a neural chain: this flow is always in the axo-dendritic or axo-so ...
Neuronal generation, migration, and differentiation in the mouse
... *Correspondence to: Eiko Nakahira, Department of Ultrastructural Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, 4-1-1 Ogawahigashi, Kodaira, Tokyo 187-8502, Japan. ...
... *Correspondence to: Eiko Nakahira, Department of Ultrastructural Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, 4-1-1 Ogawahigashi, Kodaira, Tokyo 187-8502, Japan. ...
Module 3 Brain`s Building Blocks
... – after prolonged use, L-dopa’s beneficial effect may be replaced by unwanted jerky movements ...
... – after prolonged use, L-dopa’s beneficial effect may be replaced by unwanted jerky movements ...
A1981LF07700001
... about the 'mechanism' of the morphogenetic light effect we had chosen the concept that only light absorbed by the sensor pigment phytochrome permits the proper expression of those genes which control normal development. In operational terms, it was postulated that the specific regulation of enzyme s ...
... about the 'mechanism' of the morphogenetic light effect we had chosen the concept that only light absorbed by the sensor pigment phytochrome permits the proper expression of those genes which control normal development. In operational terms, it was postulated that the specific regulation of enzyme s ...
Whole-brain functional imaging at cellular resolution using light
... next goal was to find, across the entire brain, functionally coupled large populations of neurons with slow, correlated activity (Online Methods and Supplementary Software). We developed an analysis method that is based on the idea that if activity of a large population of neurons is highly correlat ...
... next goal was to find, across the entire brain, functionally coupled large populations of neurons with slow, correlated activity (Online Methods and Supplementary Software). We developed an analysis method that is based on the idea that if activity of a large population of neurons is highly correlat ...
Chapter 11 Nervous System parts 1 and 2
... The master controlling and communicating system of the body ...
... The master controlling and communicating system of the body ...
Volume and Number of Neurons of the Human
... areas (both were superimposed on the screen picture) and for the control of the x and y movement of the microscopic stage through two Multicontrol 2000 programmable stepping motors, the GRID v2.0 software (Interactivision ApS, Silkeborg) was used. Measurement of the vertical movement of the stage (i ...
... areas (both were superimposed on the screen picture) and for the control of the x and y movement of the microscopic stage through two Multicontrol 2000 programmable stepping motors, the GRID v2.0 software (Interactivision ApS, Silkeborg) was used. Measurement of the vertical movement of the stage (i ...
Neuroembryology of Neural Tube Defects
... Severe types of spina bifida, involving protrusion of the spinal cord and/or meninges through the defect in the vertebral arch. Referred to as s.b. cystica because of the cystlike sac that is associated with these anomalies. Occur in about 1/1,000 births. Types: Spina bifida with meningocele Spina b ...
... Severe types of spina bifida, involving protrusion of the spinal cord and/or meninges through the defect in the vertebral arch. Referred to as s.b. cystica because of the cystlike sac that is associated with these anomalies. Occur in about 1/1,000 births. Types: Spina bifida with meningocele Spina b ...
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 ...
Phyla Porifera, Cnidaria, and Ctenophora
... • Gas exchange and excretion of nitrogenous wastes occur by diffusion ...
... • Gas exchange and excretion of nitrogenous wastes occur by diffusion ...
ling411-11 - Rice University
... Cats and monkeys don’t have language Therefore language must have unique properties of its structural representation in the cortex Answer: Yes, language is different, but ...
... Cats and monkeys don’t have language Therefore language must have unique properties of its structural representation in the cortex Answer: Yes, language is different, but ...
Understanding-Psychology-8th-Edition-Morris-Test-Bank
... b. endocrine functioning d. maturation and aging ...
... b. endocrine functioning d. maturation and aging ...
Dispatch Vision: How to Train Visual Cortex to Predict Reward Time
... neurons, not only cholinergic ones. Therefore, Liu et al. [4] repeated this experiment, this time using cholinergic-specific optogenetic stimulation within visual cortex, and found that it was indeed sufficient to induce timing activity. One potential caveat to this experiment, however, is that in a ...
... neurons, not only cholinergic ones. Therefore, Liu et al. [4] repeated this experiment, this time using cholinergic-specific optogenetic stimulation within visual cortex, and found that it was indeed sufficient to induce timing activity. One potential caveat to this experiment, however, is that in a ...
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. ...
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.