CNBC onnect - cnbc.cmu.edu - Center for Neural Basis of Cognition
... however, a gap in detailed understanding of the features processed in mid-level vision. This is complicated by the fact that there is feedback from the higher- to lower-level cortices. To better understand such featural processing, and especially to account for feedback effects, Yang is exploiting t ...
... however, a gap in detailed understanding of the features processed in mid-level vision. This is complicated by the fact that there is feedback from the higher- to lower-level cortices. To better understand such featural processing, and especially to account for feedback effects, Yang is exploiting t ...
Responses of single neurons in the human brain during flash
... neurons that followed the percept in all four areas of the MTL. Given the low number of neurons, it is difficult to draw any conclusion about possible distinctions across regions (the number of neurons that followed the percept ranged from 2 to 18). The remaining one third of the selective units did ...
... neurons that followed the percept in all four areas of the MTL. Given the low number of neurons, it is difficult to draw any conclusion about possible distinctions across regions (the number of neurons that followed the percept ranged from 2 to 18). The remaining one third of the selective units did ...
Void fraction and flow regime determination by means of MCNP
... ANN based modeling In this non-invasive void fraction measuring system, there is one to one mapping between every void fraction in a special regime type and the obtained corresponding spectra. There are some clear peaks in the spectra: for detectors at 180° and 140°, the two peaks of 50 and 59.5 keV ...
... ANN based modeling In this non-invasive void fraction measuring system, there is one to one mapping between every void fraction in a special regime type and the obtained corresponding spectra. There are some clear peaks in the spectra: for detectors at 180° and 140°, the two peaks of 50 and 59.5 keV ...
The Relationship Between Synchronization Among Neuronal
... found in the appendix (model 2). In addition, synaptic channels provided fast excitation and inhibition. These synaptic inuences were modeled using exponential functions, with the time constants and reversal potentials for AMPA (excitation) and GABAa (inhibition) receptor channels specied as in th ...
... found in the appendix (model 2). In addition, synaptic channels provided fast excitation and inhibition. These synaptic inuences were modeled using exponential functions, with the time constants and reversal potentials for AMPA (excitation) and GABAa (inhibition) receptor channels specied as in th ...
1From neuronal activity to scalp potential fields - Assets
... the healthy human brain. The relation of intracortical activity to surface-recorded EEG is far from simple. The surface EEG does not allow distinguishing between the various possible arrangements of sinks and sources in the different cortical layers20 . This is due to the fact that the scalp potenti ...
... the healthy human brain. The relation of intracortical activity to surface-recorded EEG is far from simple. The surface EEG does not allow distinguishing between the various possible arrangements of sinks and sources in the different cortical layers20 . This is due to the fact that the scalp potenti ...
BIO 210 Anatomy and Physiology Homework #4: Chs. 10
... B) It would produce uncontrolled muscle spasms. C) It would make the muscles more excitable. D) It would have little effect on skeletal muscles. E) It would cause spastic paralysis (muscles are contracted and unable to relax). 2) Fast muscle fibers can adapt to aerobic metabolism by generating more ...
... B) It would produce uncontrolled muscle spasms. C) It would make the muscles more excitable. D) It would have little effect on skeletal muscles. E) It would cause spastic paralysis (muscles are contracted and unable to relax). 2) Fast muscle fibers can adapt to aerobic metabolism by generating more ...
Impact of early-life stress on the medial prefrontal cortex functions
... In contrast, there are very few research reports concerning the impact of ELS on the neural activity and functional plasticity of the mPFC, especially on LTP processes. It was found that ELS decreased the metabolic activity of the mPFC in juveniles [6]. It was also shown that in adult rats, MS reduc ...
... In contrast, there are very few research reports concerning the impact of ELS on the neural activity and functional plasticity of the mPFC, especially on LTP processes. It was found that ELS decreased the metabolic activity of the mPFC in juveniles [6]. It was also shown that in adult rats, MS reduc ...
Unit One: Introduction to Physiology: The Cell and General Physiology
... stimulation except it lasts 5-10 times longer ...
... stimulation except it lasts 5-10 times longer ...
Self Assessment Chapter 14 - CM
... • Ion channels open on cardiac muscle cells; raises both rate and force of contraction • Amount of blood delivered to tissues and blood pressure both increase; maintains homeostasis during increased physical activity ...
... • Ion channels open on cardiac muscle cells; raises both rate and force of contraction • Amount of blood delivered to tissues and blood pressure both increase; maintains homeostasis during increased physical activity ...
Properties of Muscle Fibers
... When a muscle is fatigued, it is unable to contract The common reason for muscle fatigue is oxygen debt Oxygen must be “repaid” to tissue to remove oxygen debt ...
... When a muscle is fatigued, it is unable to contract The common reason for muscle fatigue is oxygen debt Oxygen must be “repaid” to tissue to remove oxygen debt ...
JEB Classics - Journal of Experimental Biology
... against springs of different compliance (Murthy and Taylor, 1970). One can see in Katz’s idea the inspiration for subsequent work in mammals on how the ␥-efferent system described by Leksell (Leksell, 1945) could be used in controlling active muscle contraction. It became widely accepted that the ␥e ...
... against springs of different compliance (Murthy and Taylor, 1970). One can see in Katz’s idea the inspiration for subsequent work in mammals on how the ␥-efferent system described by Leksell (Leksell, 1945) could be used in controlling active muscle contraction. It became widely accepted that the ␥e ...
characterisation of dopamine neurons of the murine ventral
... neurons originating from this region project and receive input from various other brain regions and through several neurotransmitter systems. The attention was concentrated on the excitatory modulation suggested to regulate important functions of synaptic plasticity, which have been associated with ...
... neurons originating from this region project and receive input from various other brain regions and through several neurotransmitter systems. The attention was concentrated on the excitatory modulation suggested to regulate important functions of synaptic plasticity, which have been associated with ...
Cardiovascular and autonomic modulation by
... rats but not sedentary rats, an acute bout of exercise was accompanied by increased OT content in the dorsal brainstem areas (53), which could help restrain exercise tachycardia in trained individuals. These data suggest that exercise training could activate pathways that are not usually important i ...
... rats but not sedentary rats, an acute bout of exercise was accompanied by increased OT content in the dorsal brainstem areas (53), which could help restrain exercise tachycardia in trained individuals. These data suggest that exercise training could activate pathways that are not usually important i ...
Cerebrospinal fluid nerve growth factor levels in patients with
... support basal forebrain cholinergic neurons.19 Proper function and morphology of BFCNs depends on the supply of NGF from the cortex and the hippocampus. A variety of brain injuries, including electrical stimulation and treatment with neurotoxins, can upregulate NGF production, which plays an importa ...
... support basal forebrain cholinergic neurons.19 Proper function and morphology of BFCNs depends on the supply of NGF from the cortex and the hippocampus. A variety of brain injuries, including electrical stimulation and treatment with neurotoxins, can upregulate NGF production, which plays an importa ...
diencephalon - Loyola University Medical Education Network
... d.) Be able to identify the thalamus and its relationships to the internal capsule, basal ganglia and third ventricle 2. After attending lecture and studying the assigned material you will be able to: a.) Identify the specific (or relay) nuclei of the thalamus, source of their afferents and which on ...
... d.) Be able to identify the thalamus and its relationships to the internal capsule, basal ganglia and third ventricle 2. After attending lecture and studying the assigned material you will be able to: a.) Identify the specific (or relay) nuclei of the thalamus, source of their afferents and which on ...
Appendix S1 Relation of local short
... registered EEG activity is a result from a mixture of volume conduction effect and genuine local source activity. However, it is often ignored that only some sources contribute to local EEG considerably and others insignificantly. What is the contribution of volume conduction effect in this context? ...
... registered EEG activity is a result from a mixture of volume conduction effect and genuine local source activity. However, it is often ignored that only some sources contribute to local EEG considerably and others insignificantly. What is the contribution of volume conduction effect in this context? ...
Time Related Effects on Functional Brain Connectivity After
... Abstract: Psychopharmacological research, if properly designed, may offer insight into both timing and area of effect, increasing our understanding of the brain’s neurotransmitter systems. For that purpose, the acute influence of the selective serotonin reuptake inhibitor citalopram (30 mg) and the ...
... Abstract: Psychopharmacological research, if properly designed, may offer insight into both timing and area of effect, increasing our understanding of the brain’s neurotransmitter systems. For that purpose, the acute influence of the selective serotonin reuptake inhibitor citalopram (30 mg) and the ...
Neurobilogy of Sleep
... • The VLPO is an area in the hypothalamus containing neurons active during sleep. Most sleep-active neurons in the VLPO are believed to be active during both NREM and REM sleep • Many of the VLPO neurons are activated by sleepinducing factors including adenosine and prostaglandinD2. These neurons ar ...
... • The VLPO is an area in the hypothalamus containing neurons active during sleep. Most sleep-active neurons in the VLPO are believed to be active during both NREM and REM sleep • Many of the VLPO neurons are activated by sleepinducing factors including adenosine and prostaglandinD2. These neurons ar ...
35 | the nervous system
... sheaths around axons. Scientists have recently discovered that they also play a role in responding to nerve activity and modulating communication between nerve cells. When glia do not function properly, the result can be disastrous—most brain tumors are caused by mutations in glia. Types of Glia The ...
... sheaths around axons. Scientists have recently discovered that they also play a role in responding to nerve activity and modulating communication between nerve cells. When glia do not function properly, the result can be disastrous—most brain tumors are caused by mutations in glia. Types of Glia The ...
Semester 2 Case 1: The Stabbing
... When a peripheral tissue becomes more active, interstitial O2 pressure falls & CO2 pressure rises. Therefore, more oxygen is delivered and more carbon dioxide is carried away. Rising CO2 pressure levels causes relaxation of smooth muscles in walls of arterioles & capillaries in the area, increasing ...
... When a peripheral tissue becomes more active, interstitial O2 pressure falls & CO2 pressure rises. Therefore, more oxygen is delivered and more carbon dioxide is carried away. Rising CO2 pressure levels causes relaxation of smooth muscles in walls of arterioles & capillaries in the area, increasing ...
Structural and functional brain network correlates of depressive
... of binary covariate, where 1 denoted those taking antidepressant medication within 30 days of the MRI scan and 0 denoting those not on antidepressant medication during this time period. While we acknowledge pharmacological heterogeneity, the inclusion of a binary covariate allows us to account for c ...
... of binary covariate, where 1 denoted those taking antidepressant medication within 30 days of the MRI scan and 0 denoting those not on antidepressant medication during this time period. While we acknowledge pharmacological heterogeneity, the inclusion of a binary covariate allows us to account for c ...
energy balance
... the outer wall of capillaries and venules. These microvascular endothelial cells have few fenestrations, pinocytic vesicles, or transendothelial channels, and are joined by tight junctions. A continuous basement membrane, astrocytic endfeet, and pericytes reinforce barrier function from the baso ...
... the outer wall of capillaries and venules. These microvascular endothelial cells have few fenestrations, pinocytic vesicles, or transendothelial channels, and are joined by tight junctions. A continuous basement membrane, astrocytic endfeet, and pericytes reinforce barrier function from the baso ...
Chapter 14 PowerPoint Slides PDF - CM
... muscle cells of many different organs, including blood vessels in skin, GI tract, and kidneys, arrector pili muscles in dermis, and certain organs of genitourinary tract Alpha-2 receptors – in plasma membranes of ...
... muscle cells of many different organs, including blood vessels in skin, GI tract, and kidneys, arrector pili muscles in dermis, and certain organs of genitourinary tract Alpha-2 receptors – in plasma membranes of ...
Haemodynamic response
In haemodynamics, the body must respond to physical activities, external temperature, and other factors by homeostatically adjusting its blood flow to deliver nutrients such as oxygen and glucose to stressed tissues and allow them to function. Haemodynamic response (HR) allows the rapid delivery of blood to active neuronal tissues. Since higher processes in the brain occur almost constantly, cerebral blood flow is essential for the maintenance of neurons, astrocytes, and other cells of the brain.