Effects of uniform extracellular DC electric fields on excitability in rat
... electric fields could trigger neuronal firing and epileptiform activity, and induce long-term (>1 s) changes in neuronal excitability. Electric fields perpendicular to the apical–dendritic axis did not induce somatic polarization, but did modulate orthodromic responses, indicating an effect on affer ...
... electric fields could trigger neuronal firing and epileptiform activity, and induce long-term (>1 s) changes in neuronal excitability. Electric fields perpendicular to the apical–dendritic axis did not induce somatic polarization, but did modulate orthodromic responses, indicating an effect on affer ...
VALUE-DEPENDENT SELECTION IN THE BRAIN: SIMULATION IN
... improve behavioral performance. This plasticity also allowed learning of a simulated auditory discrimination task when a visual stimulus was used as a secondary reinforcer, even when the visual stimulus proper did not elicit any intrinsic or innate value. On the basis of these results, we then exami ...
... improve behavioral performance. This plasticity also allowed learning of a simulated auditory discrimination task when a visual stimulus was used as a secondary reinforcer, even when the visual stimulus proper did not elicit any intrinsic or innate value. On the basis of these results, we then exami ...
A Circuit for Detection of Interaural Time Differences in the Brain
... and obviated the difficulties of extracellular recordings in the nucleus laminaris. Action potentials from single neurons in the nucleus laminaris are masked by the overwhelming field potential termed the neurophonic (Sullivan and Konishi, 1986). Similar difficulties have been found in recording fro ...
... and obviated the difficulties of extracellular recordings in the nucleus laminaris. Action potentials from single neurons in the nucleus laminaris are masked by the overwhelming field potential termed the neurophonic (Sullivan and Konishi, 1986). Similar difficulties have been found in recording fro ...
Document
... What’s the matter? 6. “White matter abnormalities have been found in people affect by ADHD, Bipolar Disorder, Language Disorders, Autism, cognitive decline in aging and Alzheimer’s disease and even in individuals afflicted with pathological lying.” ...
... What’s the matter? 6. “White matter abnormalities have been found in people affect by ADHD, Bipolar Disorder, Language Disorders, Autism, cognitive decline in aging and Alzheimer’s disease and even in individuals afflicted with pathological lying.” ...
WHAT IS THE MAMMALIAN DENTATE GYRUS GOOD FOR? Alessandro Treves
... Connectionist networks later became widely popular as models of the storage of memories on the synaptic weights between neuron-like units. In such networks, which are typically feed-forward, from input to output, and are trained with artificial mathematical procedures such as backpropagation, contro ...
... Connectionist networks later became widely popular as models of the storage of memories on the synaptic weights between neuron-like units. In such networks, which are typically feed-forward, from input to output, and are trained with artificial mathematical procedures such as backpropagation, contro ...
Chapter 9 Sleep and Biological Rhythms
... Characterized by periods of irresistible sleep, attacks of cataplexy (complete paralysis that occurs during waking), sleep paralysis (paralysis occurring before falling asleep), and hypnagogic hallucinations (vivid dreams that occur just before a person falls asleep) Produced by a brain abnormal ...
... Characterized by periods of irresistible sleep, attacks of cataplexy (complete paralysis that occurs during waking), sleep paralysis (paralysis occurring before falling asleep), and hypnagogic hallucinations (vivid dreams that occur just before a person falls asleep) Produced by a brain abnormal ...
Intrinsic laminar lattice connections in primate visual cortex
... connections within laminae 2 and 3A constitute a previously unsuspected cortical substructure, distinct from the well-organized cortical inhomogeneities imposed by extrinsic thalamic or corticocortical interareal connections. Moreover, in the tree shrew this anatomically labeled pat- ...
... connections within laminae 2 and 3A constitute a previously unsuspected cortical substructure, distinct from the well-organized cortical inhomogeneities imposed by extrinsic thalamic or corticocortical interareal connections. Moreover, in the tree shrew this anatomically labeled pat- ...
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... • how the nervous system receives information from the environment • how the nervous system can store this information • how neural interactions can generate behaviour • the methodologies used to explore ...
... • how the nervous system receives information from the environment • how the nervous system can store this information • how neural interactions can generate behaviour • the methodologies used to explore ...
Motif distribution, dynamical properties, and computational
... somatosensory, motor and visual areas of adult rats and adult cats. It specifies connection probabilities and connection strengths of effectively established synaptic connections between excitatory and inhibitory neocortical neurons, to which we will refer as functional connectivity in this paper. Th ...
... somatosensory, motor and visual areas of adult rats and adult cats. It specifies connection probabilities and connection strengths of effectively established synaptic connections between excitatory and inhibitory neocortical neurons, to which we will refer as functional connectivity in this paper. Th ...
Pyramidal (Voluntary Motor) System
... Upper Motor Neuron: lesions of the pyramidal tract (corticospinal) results in spasticity, hyperreflexia, hypertonia, and positive Babinski sign Lower Motor Neuron: lesions of cell bodies of motor neurons (in cranial nerve motor nuclei or ventral horn of spinal cord) or their axons in nerves to the m ...
... Upper Motor Neuron: lesions of the pyramidal tract (corticospinal) results in spasticity, hyperreflexia, hypertonia, and positive Babinski sign Lower Motor Neuron: lesions of cell bodies of motor neurons (in cranial nerve motor nuclei or ventral horn of spinal cord) or their axons in nerves to the m ...
The Living World - Chapter 28 - McGraw Hill Higher Education
... The path of sensory information is a simple one 1. Stimulation Physical stimulus impinges on a sensory receptor 2. Transduction Stimulus-gated ion channels in sensory neuron are opened or closed An action potential is generated 3. Transmission Nerve impulse is conducted to the CNS ...
... The path of sensory information is a simple one 1. Stimulation Physical stimulus impinges on a sensory receptor 2. Transduction Stimulus-gated ion channels in sensory neuron are opened or closed An action potential is generated 3. Transmission Nerve impulse is conducted to the CNS ...
The Neuronal Endomembrane System
... suited to address the nature of possible interactions between AR and rough endoplasmic reticulum (RER) in the axon hillock. It is also ideal to study the origin of the axonal discrete elements within the cell body as well as their interaction with other somal endomembrane system components. Tissues ...
... suited to address the nature of possible interactions between AR and rough endoplasmic reticulum (RER) in the axon hillock. It is also ideal to study the origin of the axonal discrete elements within the cell body as well as their interaction with other somal endomembrane system components. Tissues ...
A Cortical Substrate for Memory
... discoveries about the neural encoding of navigation and the representation of space (McNaughton et al., 2006; Moser et al., 2008). Navigation is composed of a sequence of individual orienting motions, but in contrast to rodent studies of spatial navigation, the neural control of individual orienting ...
... discoveries about the neural encoding of navigation and the representation of space (McNaughton et al., 2006; Moser et al., 2008). Navigation is composed of a sequence of individual orienting motions, but in contrast to rodent studies of spatial navigation, the neural control of individual orienting ...
Mechanisms of developmental neurite pruning
... and the fly. We do not aim to be comprehensive but rather provide our own view of the current principles arising from many studies in a wide variety of neuronal systems. As a consequence, we will neither discuss all of the neuronal systems that undergo remodeling nor all of the important work done i ...
... and the fly. We do not aim to be comprehensive but rather provide our own view of the current principles arising from many studies in a wide variety of neuronal systems. As a consequence, we will neither discuss all of the neuronal systems that undergo remodeling nor all of the important work done i ...
Role of Nitric Oxide on Dopamine Release and Morphine
... of opioids, which gradually decreases the effects of opioids (Erfani, Sahraei, & Meftahi, 2015; Yamada, 2008). Tolerance to the rewarding effects of opioids, which is called motivational tolerance, is the main reason for the increased use of these drugs. The potential factor(s) that generated opioid ...
... of opioids, which gradually decreases the effects of opioids (Erfani, Sahraei, & Meftahi, 2015; Yamada, 2008). Tolerance to the rewarding effects of opioids, which is called motivational tolerance, is the main reason for the increased use of these drugs. The potential factor(s) that generated opioid ...
The Suprachiasmatic Nucleus Gets Split: Why Does Cortisol
... each bout of locomotion (9). To determine the hypothalamic basis for the pituitary response, GnRH neuronal activation was monitored; hamsters showed parallel leftright asymmetry in Fos expression in the SCN and in preoptic area GnRH neurons, suggesting that each LH surge was mediated by sided SCN-pr ...
... each bout of locomotion (9). To determine the hypothalamic basis for the pituitary response, GnRH neuronal activation was monitored; hamsters showed parallel leftright asymmetry in Fos expression in the SCN and in preoptic area GnRH neurons, suggesting that each LH surge was mediated by sided SCN-pr ...
Reverse pharmacology of orexin
... patients indicated that orexins are highly important factors for the sleep/wakefulness regulation. The efferent and afferent systems of orexinproducing neurons suggest interactions between these cells and arousal centers in the brainstem as well as important feeding centers in the hypothalamus. Elec ...
... patients indicated that orexins are highly important factors for the sleep/wakefulness regulation. The efferent and afferent systems of orexinproducing neurons suggest interactions between these cells and arousal centers in the brainstem as well as important feeding centers in the hypothalamus. Elec ...
cerebral and gastric histamine system is altered after portocaval shunt
... of HA immunostaining was different (not shown). This was in contrast to the neuronal fibre histamine immunofluorescence in PCA rats, which was evidently more intense in several brain areas. On the other hand, the occurrence and density of histamine immunoreactive neurons and nerve fibres was essenti ...
... of HA immunostaining was different (not shown). This was in contrast to the neuronal fibre histamine immunofluorescence in PCA rats, which was evidently more intense in several brain areas. On the other hand, the occurrence and density of histamine immunoreactive neurons and nerve fibres was essenti ...
MS Word DOC - AvianBrain.org
... major histogenetic divisions: the pallium and the subpallium. The existence of these two divisions is based on developmental, molecular, and connectivity data explained below. If we consider the telencephalon isolated from the rest of the brain, the pallium is located at the top of the telencephalic ...
... major histogenetic divisions: the pallium and the subpallium. The existence of these two divisions is based on developmental, molecular, and connectivity data explained below. If we consider the telencephalon isolated from the rest of the brain, the pallium is located at the top of the telencephalic ...
Slides 7.1 - Bellevue ISD
... If the action potential (nerve impulse) starts, it is propagated over the entire axon Potassium ions rush out of the neuron after sodium ions rush in, which repolarizes the membrane The sodium-potassium pump restores the original configuration This action requires ATP Copyright © 2003 Pearso ...
... If the action potential (nerve impulse) starts, it is propagated over the entire axon Potassium ions rush out of the neuron after sodium ions rush in, which repolarizes the membrane The sodium-potassium pump restores the original configuration This action requires ATP Copyright © 2003 Pearso ...
The Dialectics of Hebb and Homeostasis within
... mechanisms that fall outside the simple Hebbian/homeostatic framework would be gating ...
... mechanisms that fall outside the simple Hebbian/homeostatic framework would be gating ...
the axon hillock and the initial segment
... initial segment of the Purkinje cell (cat) that displays some of the features discussed in the present paper, but they direct attention only to the ribosomes and the fasciculated microtubules, which had already been pointed out by Palay (16) and Kohno (13). The whole constellation of characteristics ...
... initial segment of the Purkinje cell (cat) that displays some of the features discussed in the present paper, but they direct attention only to the ribosomes and the fasciculated microtubules, which had already been pointed out by Palay (16) and Kohno (13). The whole constellation of characteristics ...