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Basal Ganglia
Basal Ganglia

... saccadic eye movements, as well as PPN which is connected to brainstem motor centers involved in postural adjustements and certain rhythmic movemnts that appear pre-programmed (e.g, swalling, swinging arms while walking, blinking). ...
Signal Integration in Thalamus: Labeled Lines Go
Signal Integration in Thalamus: Labeled Lines Go

... of the same type can vary their dendritic arbor size according to location in the retina—a feature referred to as retinotopic-dependent dendritic scaling. While this feature is thought to be less prominent in non-foveated species such as mice, it sometimes still occurs (Bleckert et al., 2014). Thus, ...
Neural Modeling and Computational Neuroscience
Neural Modeling and Computational Neuroscience

... Useful to explain and do predictions on the way in which biological neural networks operate ...
Imitation as Faithful Copying of a Novel Technique in Marmoset
Imitation as Faithful Copying of a Novel Technique in Marmoset

Group Redundancy Measures Reveals Redundancy Reduction in the Auditory Pathway
Group Redundancy Measures Reveals Redundancy Reduction in the Auditory Pathway

... Interactions and high order correlations between neurons were mostly investigated within single brain areas on the level of pairs of cells, showing both synergistic and redundant interactions [5, 6, 4]. The current study focuses on developing redundancy measures for larger groups of neurons and comp ...
Chapter 11-自律神經及體運動神經系統檔案
Chapter 11-自律神經及體運動神經系統檔案

Chapter 11-自律神經及體運動神經系統檔案
Chapter 11-自律神經及體運動神經系統檔案

... the central nervous system to a skeletal muscle cell 骨骼肌細胞  Motor neurons originate in the ventral horn 腹根 of the spinal cord 脊髓 and receive input from multiple sources, including afferents (for spinal reflexes), the brainstem 腦幹 extrapyramidal tracts 錐體外路徑, and the cerebral cortex 大腦皮質 pyramidal t ...
Spinal cord- 2 - Weebly
Spinal cord- 2 - Weebly

...  The corticospinal tracts are often called the pyramidal tracts because they form pyramid-shaped enlargements on the anterior surface of the medulla concerned with controlling skilled movements of the distal extremities (facilitation of alpha and gamma motor neurons which innervate the distal flex ...
Document
Document

... the output layer becomes the winner. This neuron is the only neuron that produces an output signal. The activity of all other neurons is suppressed in the competition.  The lateral feedback connections produce excitatory or inhibitory effects, depending on the distance from the winning neuron. This ...
This Week in The Journal - The Journal of Neuroscience
This Week in The Journal - The Journal of Neuroscience

... and BMPR1b, it increased activation of SMAD1/5/8 and p38, two downstream mediators of BMPR signaling. This effect may have resulted from a redistribution of BMPR1b into lipid rafts, which are thought to facilitate receptor-mediated activation of downstream signaling complexes. Indeed, the amount of ...
W7 Lecture
W7 Lecture

... seen in this drawing task. Although patient is not impaired visually, does not perceive part of visual world. ...
Marginal chimera state at cross-frequency locking of pulse
Marginal chimera state at cross-frequency locking of pulse

... Kuramoto-Battogtokh example. In Ref. [9], two identical populations of one-dimensional leaky integrate-and-fire units, very similar to that introduced in Ref. [3], have been studied, and chimera states very similar to that in Ref. [7] have been observed: one population was fully synchronized while t ...
CHAPTER 10: NERVOUS SYSTEM I
CHAPTER 10: NERVOUS SYSTEM I

... include enkephalins: a. ...
Abstract Browser  - The Journal of Neuroscience
Abstract Browser - The Journal of Neuroscience

... The emergence of motor deficits after cerebellar damage indicates that the cerebellum is involved in producing smooth, continuous ...
12 - FacultyWeb
12 - FacultyWeb

... • Neural crest cells that come to lie alongside the cord form the dorsal root ganglia sensory neurons; axons grow into the dorsal aspect of the cord Copyright © 2010 Pearson Education, Inc. ...
Study Guide
Study Guide

... • In previous assignments, you have been exposed to various pieces of primary literature, i.e., original articles in which scientists report (for the first time) the experiments they performed and the results they obtained. This week's discussion covers a somewhat different form of scientific writin ...
Funkcje ruchowe
Funkcje ruchowe

... Cell activity in the motor cortex depends on whether a sequence of movements is guided by visual cues or by prior training. Monkeys were required to press three buttons either in a sequence presented by lighting three panels in turn or in a sequence they had learned previously. After being instructe ...
Association of type I neurons positive for NADPH
Association of type I neurons positive for NADPH

... within 100 μm of either margin were also excluded. Positive neurons were densely filled, in Golgi-like detail, and therefore unambiguously classified as type 1 (Yan et al., 1996; Estrada and DeFelipe, 1998). No examples of type 2 neurons, defined as small, lightly stained neurons, were evident. Within ...
nervous system text b - powerpoint presentation
nervous system text b - powerpoint presentation

... A. Axons are myelinated by the activities of oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. B. Perhaps the most important reason for this is that myelination allows for higher velocities of nervous impulse or action potential conduction. C. Action ...
Control of a Robot Arm with Artificial and Biological Neural Networks
Control of a Robot Arm with Artificial and Biological Neural Networks

This Week in The Journal Cellular/Molecular The N-Terminal Portion of A ␤
This Week in The Journal Cellular/Molecular The N-Terminal Portion of A ␤

... Research from the previous decade suggests that word meaning is partially stored in distributed modality-specific cortical networks. However, little is known about the mechanisms by which semantic content from multiple modalities is integrated into a coherent multisensory representation. Therefore w ...
INTRODUCTION - Faculty & Staff Webpages
INTRODUCTION - Faculty & Staff Webpages

... • Operation of the ANS to maintain homeostasis, however, depends on a continual flow of sensory afferent input, from receptors in organs, and efferent motor output to the same effector organs. • Structurally, the ANS includes autonomic sensory neurons, integrating centers in the CNS, and autonomic m ...
Frequency decoding of periodically timed action potentials through
Frequency decoding of periodically timed action potentials through

... connections from the network neurons that are inactive for this pattern. The properties and precision of such a downstream read-out will be investigated in future studies. In our simulations we have employed a range of temporal delays between network neurons that encompasses about an octave. Frequen ...
Hypocretinergic Neurons are Primarily involved in Activation
Hypocretinergic Neurons are Primarily involved in Activation

... trigeminal motoneurons.28 Hypocretinergic terminals have also been found in the ventral horn where motoneuron cell bodies are located;29 moreover, the direct application of hypocretin onto intracellularly recorded lumbar motoneurons results in depolarization of their membrane potential, a decrease i ...
Picture 2.12. Some of the more often used neuron`s
Picture 2.12. Some of the more often used neuron`s

... A neuron presented in this picture is the most typical “material”, which is used for creating a network. More precisely – such typical “material” is a neuron of a network defined as MLP (Multi–Layer Perceptron), the most crucial elements of which I have collected and presented in picture 2.14. It is ...
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Mirror neuron

A mirror neuron is a neuron that fires both when an animal acts and when the animal observes the same action performed by another. Thus, the neuron ""mirrors"" the behavior of the other, as though the observer were itself acting. Such neurons have been directly observed in primate species. Birds have been shown to have imitative resonance behaviors and neurological evidence suggests the presence of some form of mirroring system. In humans, brain activity consistent with that of mirror neurons has been found in the premotor cortex, the supplementary motor area, the primary somatosensory cortex and the inferior parietal cortex.The function of the mirror system is a subject of much speculation. Many researchers in cognitive neuroscience and cognitive psychology consider that this system provides the physiological mechanism for the perception/action coupling (see the common coding theory). They argue that mirror neurons may be important for understanding the actions of other people, and for learning new skills by imitation. Some researchers also speculate that mirror systems may simulate observed actions, and thus contribute to theory of mind skills, while others relate mirror neurons to language abilities. Neuroscientists such as Marco Iacoboni (UCLA) have argued that mirror neuron systems in the human brain help us understand the actions and intentions of other people. In a study published in March 2005 Iacoboni and his colleagues reported that mirror neurons could discern if another person who was picking up a cup of tea planned to drink from it or clear it from the table. In addition, Iacoboni has argued that mirror neurons are the neural basis of the human capacity for emotions such as empathy.It has also been proposed that problems with the mirror neuron system may underlie cognitive disorders, particularly autism. However the connection between mirror neuron dysfunction and autism is tentative and it remains to be seen how mirror neurons may be related to many of the important characteristics of autism.Despite the excitement generated by these findings, to date, no widely accepted neural or computational models have been put forward to describe how mirror neuron activity supports cognitive functions such as imitation. There are neuroscientists who caution that the claims being made for the role of mirror neurons are not supported by adequate research.
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