The autonomic nervous system
... sacral plexus. They travel to their side's corresponding inferior hypogastric plexus, located bilaterally on the walls of the rectum.From there, they contribute to the innervation of the pelvic and genital organs. The nerves regulate the emptying of the urinary bladder, control opening and closing o ...
... sacral plexus. They travel to their side's corresponding inferior hypogastric plexus, located bilaterally on the walls of the rectum.From there, they contribute to the innervation of the pelvic and genital organs. The nerves regulate the emptying of the urinary bladder, control opening and closing o ...
Role of the trigeminal mesencephalic nucleus in rat whisker pad
... macrovibrisae showed that whisking neurons similar to those observed in the trigeminal ganglion were located in the TMnu. These neurons had different patterns of activation, which were dependent on the type of spontaneous macrovibrissae movement. In particular, their spiking activity tonically incre ...
... macrovibrisae showed that whisking neurons similar to those observed in the trigeminal ganglion were located in the TMnu. These neurons had different patterns of activation, which were dependent on the type of spontaneous macrovibrissae movement. In particular, their spiking activity tonically incre ...
Action Potentials
... base of the axon hillock where they are summed • Two EPSPs in rapid succession at one synapse are additive • Same for IPSPs ...
... base of the axon hillock where they are summed • Two EPSPs in rapid succession at one synapse are additive • Same for IPSPs ...
ChennWalshCeCortexJu..
... subventricular zone. In some sections, these aggregations of neurons appears separate and distinct from the overlying cerebral cortex (Figs 3A,B and 4D,E,G) although, in other sections, neurons appear to coalesce together with neurons of the cortex (Figs 3D,E,G,H and 4H). For example, sections throu ...
... subventricular zone. In some sections, these aggregations of neurons appears separate and distinct from the overlying cerebral cortex (Figs 3A,B and 4D,E,G) although, in other sections, neurons appear to coalesce together with neurons of the cortex (Figs 3D,E,G,H and 4H). For example, sections throu ...
Infant Sleep: A Precursor to Adult Sleep?
... definitions of adult sleep. What’s more, the neural mechanisms underlying the infant sleep state contain the primary components of adult sleep. In previous studies, Karlsson and Blumberg discovered a brainstem region in the ventromedial medulla, which they called the medullary inhibitory area (MIA), ...
... definitions of adult sleep. What’s more, the neural mechanisms underlying the infant sleep state contain the primary components of adult sleep. In previous studies, Karlsson and Blumberg discovered a brainstem region in the ventromedial medulla, which they called the medullary inhibitory area (MIA), ...
Language processing – role of inferior parietal lobule
... language that allowed Homo sapiens to conquer the world. But how are words internalised? How do they connect to visual representations of objects? These problems have puzzled many for as long as there has been writen language. Norman Geschwind was one of the first scientists who confronted this prob ...
... language that allowed Homo sapiens to conquer the world. But how are words internalised? How do they connect to visual representations of objects? These problems have puzzled many for as long as there has been writen language. Norman Geschwind was one of the first scientists who confronted this prob ...
Neurohistology I
... Myelin Formation—Myelination occurs when the axon attains a diameter > 1 µm. The lemmocyte wraps around the nerve fiber (axon) several times producing a membranous sheath that varies in thickness depending on the number of times the lemmocyte wraps around the axon. ...
... Myelin Formation—Myelination occurs when the axon attains a diameter > 1 µm. The lemmocyte wraps around the nerve fiber (axon) several times producing a membranous sheath that varies in thickness depending on the number of times the lemmocyte wraps around the axon. ...
Imaging the Functional Organization of Zebrafish
... small tap-evoked increases occurred in early trials in a series of escapes elicited at 2 min intervals. However, the Mauthner cell responses were often larger, ranging from 30% to 70% in most experiments. This was somewhat surprising because the evidence, including data from larval and adult fish, i ...
... small tap-evoked increases occurred in early trials in a series of escapes elicited at 2 min intervals. However, the Mauthner cell responses were often larger, ranging from 30% to 70% in most experiments. This was somewhat surprising because the evidence, including data from larval and adult fish, i ...
Efficient Recruitment of Layer 2/3 Interneurons by Layer 4 Input in
... mM PB, pH 7.4, containing either 4% paraformaldehyde or 1% paraformaldehyde and 2.5% glutaraldehyde. Slices containing biocytinfilled neurons that were destined for lightmicroscopic analysis only, were processed using a modified protocol described previously (Lübke et al., 2000). Slices were incuba ...
... mM PB, pH 7.4, containing either 4% paraformaldehyde or 1% paraformaldehyde and 2.5% glutaraldehyde. Slices containing biocytinfilled neurons that were destined for lightmicroscopic analysis only, were processed using a modified protocol described previously (Lübke et al., 2000). Slices were incuba ...
a r t I C l e S
... During the development of peripheral ganglia, 50% of the neurons that are generated undergo apoptosis. How the massive numbers of corpses are removed is unknown. We found that satellite glial cell precursors are the primary phagocytic cells for apoptotic corpse removal in developing mouse dorsal roo ...
... During the development of peripheral ganglia, 50% of the neurons that are generated undergo apoptosis. How the massive numbers of corpses are removed is unknown. We found that satellite glial cell precursors are the primary phagocytic cells for apoptotic corpse removal in developing mouse dorsal roo ...
Chapter Two Line Title Here and Chapter Title Here
... b. Beta waves have a higher frequency than alpha waves and are less regular, usually occurring when the brain is mentally focused. c. Theta waves are irregular waves that are not common when awake, but may occur when concentrating. d. Delta waves are high amplitude waves seen during deep sleep, but ...
... b. Beta waves have a higher frequency than alpha waves and are less regular, usually occurring when the brain is mentally focused. c. Theta waves are irregular waves that are not common when awake, but may occur when concentrating. d. Delta waves are high amplitude waves seen during deep sleep, but ...
Reflexes Reaction time
... only two neurons (one sensory neuron, and one motor neuron; monosynaptic refers to the presence of a single chemical synapse) – peripheral muscle reflexes or deep tendon reflexes (patellar reflex, achilles reflex): brief stimulation of the muscle spindle results in contraction of the muscle – high c ...
... only two neurons (one sensory neuron, and one motor neuron; monosynaptic refers to the presence of a single chemical synapse) – peripheral muscle reflexes or deep tendon reflexes (patellar reflex, achilles reflex): brief stimulation of the muscle spindle results in contraction of the muscle – high c ...
The NERVOUS SYSTEM
... vertebrates and invertebrates It is involved in muscle stimulation, memory ...
... vertebrates and invertebrates It is involved in muscle stimulation, memory ...
Thalamic Circuit Diversity: Modulation of the Driver/Modulator
... converge on small caliber (distal) dendrites (depicted by the gray terminals surrounding a section of dendrite, pink, modified from Robson and Hall, 1977). Repetitive stimulation of layer VI corticothalamic terminals results in a frequency-dependent facilitation of excitatory postsynaptic potentials ...
... converge on small caliber (distal) dendrites (depicted by the gray terminals surrounding a section of dendrite, pink, modified from Robson and Hall, 1977). Repetitive stimulation of layer VI corticothalamic terminals results in a frequency-dependent facilitation of excitatory postsynaptic potentials ...
Motion sensitive cells in the macaque superior
... an apparatus that produced visual motion of a projected two-dimensional patterned stimulus. Single unit responses from STP were recorded and response:~ to visual motion, produced externally by the experimenter, were compared to the responses to visual motion (of the same pattern) produced by the mon ...
... an apparatus that produced visual motion of a projected two-dimensional patterned stimulus. Single unit responses from STP were recorded and response:~ to visual motion, produced externally by the experimenter, were compared to the responses to visual motion (of the same pattern) produced by the mon ...
Categories in the Brain - Rice University -
... • Additional properties of columns and functional webs can be derived from Mountcastle’s treatment together with neurolinguistic findings – Method: “connecting the dots” • Hypothesis IV: (Coming Soon!) “[T]he effective unit of operation…is not the single neuron and its axon, but bundles or groups of ...
... • Additional properties of columns and functional webs can be derived from Mountcastle’s treatment together with neurolinguistic findings – Method: “connecting the dots” • Hypothesis IV: (Coming Soon!) “[T]he effective unit of operation…is not the single neuron and its axon, but bundles or groups of ...
THE CENTRAL NERVOUS SYSTEM
... brainstem and spinal cord; they are also the nerve cells which transmit information to muscles and which register sensory information (e.g. touch stimuli). There are between 10 billion and 100 billion neurons in the brain; each neuron may contact about 1000 others. Most neurons have three recognizab ...
... brainstem and spinal cord; they are also the nerve cells which transmit information to muscles and which register sensory information (e.g. touch stimuli). There are between 10 billion and 100 billion neurons in the brain; each neuron may contact about 1000 others. Most neurons have three recognizab ...
Chapter 2: The Biological Basis of Behavior
... Which of the following statements is true of the activity of neurons? a. The nerve impulse fades in strength as it travels through the neuron. b. Transmission of information at synapses occurs by means of direct physical contact between the nerve cells. c. The size and speed of the neural impulse is ...
... Which of the following statements is true of the activity of neurons? a. The nerve impulse fades in strength as it travels through the neuron. b. Transmission of information at synapses occurs by means of direct physical contact between the nerve cells. c. The size and speed of the neural impulse is ...
Linking Topography to Tonotopy in the Mouse Auditory
... tuning in the present study. Onset latency was defined as the first 1 ms poststimulus onset time bin that populated a high-intensity region of the FRA near the BF (#40 dB SPL, $0.5 octaves). The low- and highfrequency borders of the FRA were then determined at each tone level, and the bandwidth of t ...
... tuning in the present study. Onset latency was defined as the first 1 ms poststimulus onset time bin that populated a high-intensity region of the FRA near the BF (#40 dB SPL, $0.5 octaves). The low- and highfrequency borders of the FRA were then determined at each tone level, and the bandwidth of t ...
Report - Ben Hayden
... monkey N and 26 in monkey B; data from 42 of these was analyzed in McCoy and Platt [2005]). Figure 2A shows the response of a single neuron on trials in which the monkey chose the risky option and received a large reward (dark gray line) or the small reward (black line). Responses are aligned to rew ...
... monkey N and 26 in monkey B; data from 42 of these was analyzed in McCoy and Platt [2005]). Figure 2A shows the response of a single neuron on trials in which the monkey chose the risky option and received a large reward (dark gray line) or the small reward (black line). Responses are aligned to rew ...
Reflexes
... The flexor reflex is ipsilateral. Incoming and outgoing impulses are on the same side of the spinal cord. The flexor reflex illustrates another feature of polysynaptic reflex arc. When you withdraw the limb from a painful stimulus, more than one muscle is involved. Several motor neurons simultaneous ...
... The flexor reflex is ipsilateral. Incoming and outgoing impulses are on the same side of the spinal cord. The flexor reflex illustrates another feature of polysynaptic reflex arc. When you withdraw the limb from a painful stimulus, more than one muscle is involved. Several motor neurons simultaneous ...
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 ...