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Basal Ganglia Functional Connectivity Based on
Basal Ganglia Functional Connectivity Based on

... Neurotransmitter ligand studies were excluded. All papers that reported original data were retrieved and read in full. From these original studies, we then selected papers for inclusion into this study according to predetermined criteria. For inclusion, papers had to report at least one subtraction ...
Information About Spatial View in an Ensemble of Primate
Information About Spatial View in an Ensemble of Primate

... visual cortex (Rolls et al. 1997c) and the orbitofrontal olfactory cortex (Rolls et al. 1996). Of particular interest also was how the information increases as more cells are added to the ensemble. An attractive property of distributed encoding is that the information available from an ensemble can ...
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... • Neurons are irritable too! • action potentials – change in cell membrane charge ...
neuralnet: Training of neural networks
neuralnet: Training of neural networks

... The package neuralnet focuses on multi-layer perceptrons (MLP, Bishop, 1995), which are well applicable when modeling functional relationships. The underlying structure of an MLP is a directed graph, i.e. it consists of vertices and directed edges, in this context called neurons and synapses. The ne ...
Introduction to Artificial Neural Networks (ANNs)
Introduction to Artificial Neural Networks (ANNs)

... They are complex functions of VM , determined empirically by Hodgkin and Huxley’s work on the giant squid axon. Conductances are functions of the gating probabilities gK = g K n4 - since 4 identical and independent parts of a K gate need to be open. ...
The role of early visual cortex in visual integration: a neural model of
The role of early visual cortex in visual integration: a neural model of

... the number of distractors. This suggests a parallel and ‘preattentive’ mechanism that can be implemented by the early retinotopic visual areas. On the other hand, when both target and distractors are composed of similar elementary features, the amount of time required to distinguish between them inc ...
The Central Nervous System
The Central Nervous System

... • Fine tunes most movements ...
More than just synaptic building blocks: scaffolding proteins of the
More than just synaptic building blocks: scaffolding proteins of the

... as over-expression of a guanine deaminase activity deficient mutant resulted in a decrease in branching in a dominantnegative fashion (Akum et al. 2004). In the more recent study, coexpression of both PSD-95 and cypin not only led to an attenuation of the effects induced by cypin alone, but also to a ...
6-1 Nervous System
6-1 Nervous System

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Stable propagation of synchronous spiking in cortical neural networks
Stable propagation of synchronous spiking in cortical neural networks

... the ®ring behaviour of cortical neurons13,14. We focused on spike responses to transient membrane-potential excursions, implied by the physiological ®ndings1±5. As a rule, such transients are explained by convergent inputs from simultaneously spiking neurons onto a target neuron (Fig. 1a). These tra ...
Cognitive Ability is Associated with Altered
Cognitive Ability is Associated with Altered

... 2012). Recent behavioral analyses in 22q11DS patients indicate that distinct aspects of executive function, some of which may engage behavioral mechanisms and frontal cortical areas similar to those used for reversal tasks in mice, are selectively compromised (Shashi et al. 2010; Shapiro et al. 2013 ...
Large-scale spatiotemporal spike patterning consistent with
Large-scale spatiotemporal spike patterning consistent with

... from groups of neurons near the recording site, it has never been shown whether action potentials from individual neurons demonstrate spatiotemporal patterning consistent with wave propagation. This is important because it is still debated as to what aggregate signals such as LFPs and VSD signify ph ...
Nerve Cell Communication - URMC
Nerve Cell Communication - URMC

... branches. Hint: As the impulse travels along the axon, you should arrange the impulse card as shown in the diagram on the right. ...
Nerve Cell Communication - URMC
Nerve Cell Communication - URMC

... branches. Hint: As the impulse travels along the axon, you should arrange the impulse card as shown in the diagram on the right. ...
What Is the Nervous System?
What Is the Nervous System?

... • Then it processes the information and forms a response to it. • The basic unit of the nervous system is a type of cell called a neuron (NOOR ahn). ...
Section 11.3
Section 11.3

... • Then it processes the information and forms a response to it. • The basic unit of the nervous system is a type of cell called a neuron (NOOR ahn). ...
- White Rose Research Online
- White Rose Research Online

... A system’s wiring constrains its dynamics, yet modelling of neural structures often overlooks the specific networks formed by their neurons. We developed an approach for constructing anatomically realistic networks and reconstructed the GABAergic microcircuit formed by the medium spiny neurons (MSNs ...
What Is the Nervous System?
What Is the Nervous System?

... • Then it processes the information and forms a response to it. • The basic unit of the nervous system is a type of cell called a neuron (NOOR ahn). ...
Towards comprehensive foundations of computational intelligence.
Towards comprehensive foundations of computational intelligence.

... mation about the object is used for associations and further reasoning. Inspirations from brain sciences serve below to discuss some challenges facing CI, and will be explored in more details later in this paper. 2.1 Some challenges for CI Intelligent systems should have goals, select appropriate d ...
Tutorial on Pattern Classification in Cell Recording
Tutorial on Pattern Classification in Cell Recording

... information about different experimental conditions in order to better understand how the brain processes information. These procedures and algorithms are extensively used to quantitatively examine the responses of populations of neurons at the neurophysiological level (e.g., chapters 2, 3, 7, 10, 2 ...
Experiencing Sensation and Perception
Experiencing Sensation and Perception

... Finding the noiciceptor [to glossary], the receptor for pain, has proved particularly difficult over the years. In fact at time it has been proposed that there are not particular receptors that respond to pain ...
The tetrapartite synapse_ Extracellular matrix remodeling
The tetrapartite synapse_ Extracellular matrix remodeling

... to promote cellular reorganization. These proteins were originally discovered for their role in tumor cell invasion (Himelstein et al., 1994), angiogenesis (Yu and Stamenkovic, 2000), and wound healing (Agren, 1994), and more recently their contributions to synaptic and neuronal reorganization have ...
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video slide

... • One function of each major brain region. ...
Neurons, Brain Chemistry, and Neurotransmission
Neurons, Brain Chemistry, and Neurotransmission

... The cell body, also called the soma, is the metabolic center of the neuron. The nucleus is located in the cell body, and most of the cell’s protein synthesis occurs in the cell body. A neuron usually has multiple processes, or fibers, called dendrites that extend from the cell body. These processes ...
Chapter 2 - Monsignor Farrell High School
Chapter 2 - Monsignor Farrell High School

... • pituitary gland: gland located in the brain that secretes human growth hormone and influences all other hormone-secreting glands (also known as the master gland) • pineal gland: endocrine gland located near the base of the cerebrum that secretes melatonin • thyroid gland: endocrine gland found in ...
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Holonomic brain theory

The holonomic brain theory, developed by neuroscientist Karl Pribram initially in collaboration with physicist David Bohm, is a model of human cognition that describes the brain as a holographic storage network. Pribram suggests these processes involve electric oscillations in the brain's fine-fibered dendritic webs, which are different from the more commonly known action potentials involving axons and synapses. These oscillations are waves and create wave interference patterns in which memory is encoded naturally, and the waves may be analyzed by a Fourier transform. Gabor, Pribram and others noted the similarities between these brain processes and the storage of information in a hologram, which can also be analyzed with a Fourier transform. In a hologram, any part of the hologram with sufficient size contains the whole of the stored information. In this theory, a piece of a long-term memory is similarly distributed over a dendritic arbor so that each part of the dendritic network contains all the information stored over the entire network. This model allows for important aspects of human consciousness, including the fast associative memory that allows for connections between different pieces of stored information and the non-locality of memory storage (a specific memory is not stored in a specific location, i.e. a certain neuron).
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