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Lecture #21 Date
Lecture #21 Date

... A neuron is like a French Fry: high Na+ outside, high K+ (POTassium/potato) inside!!! During the AP, we will turn our axon INSIDE OUT!!! To fire an action potential, we have to be at resting potential (-70 mV), maintained by closed Na+ and K+ channels If enough NT molecules are picked up by dendrite ...
Nervous_System_Neurons
Nervous_System_Neurons

...  So how is the nerve message continued along the axon/dendrite route??? ...
PowerPoint for 9/29
PowerPoint for 9/29

... either fires or it doesn’t; more stimulation does nothing.  This is known as the “all-ornone” response. ...
Artificial Intelligence, Expert Systems, and DSS
Artificial Intelligence, Expert Systems, and DSS

... inspired by studies of the brain and nervous system ANNs are used to simulate the massively parallel processes that are effectively used in the brain for learning, and storing information and knowledge ...
See the tutorial (network)
See the tutorial (network)

... Details of how networks are modeled in GENESIS ...
Human Body Systems
Human Body Systems

...  Part II: Relaying the Message (Partners)  You will create a flow map of how the nervous system and body interact from the time of seeing a cockroach to your reaction (stepping on it, running, picking it up)  Please read the full instructions – you need to use linking words and pictures! ...
Overview of the Day
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...  Peripheral Nervous System (carries info. to and from the CNS)  somatic/skeletal nervous system (controls voluntary movement of skeletal muscles  autonomic nervous system (controls glands and muscles of internal organs [e.g., heart]). The sympathetic and parasympathetic systems work together to k ...
Neural Development - Peoria Public Schools
Neural Development - Peoria Public Schools

... • Nerve cells migrate to their final position with amoeba like movement a. Once in their final position, mature neurons do not normally move. ...
48 Nervous System PowerPoint
48 Nervous System PowerPoint

...  Primitive streak ...
A.1 Neural Development
A.1 Neural Development

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Integrate and Fire Neural Network
Integrate and Fire Neural Network

... • This is a digital system for doing IAF simulations, not an analog chip for simulating neurons. – Speed improved by factor of 103 over conventional digital. ...
A.1 Neural Development
A.1 Neural Development

... Some axons extend beyond the neural tube to reach other parts of the body A developing neuron forms multiple synapses Synapses that are nut used do not persist Neural pruning involves the loss of unused neurons The plasticity of the nervous system allows it to change ...
Biology Notes: The Nervous System and Neurons
Biology Notes: The Nervous System and Neurons

... ReView (at the end of the PowerPoint you should be able to answer these questions)   1. What is the function of the nervous system?  2. List the 4 main parts and describe the purpose of the 4 main parts of a neuron.  3. The nervous system is divided into 2 parts.  What are they and what do they incl ...
Nigel Goddard
Nigel Goddard

... information-processing in the nervous system ...
Unit 2 Review
Unit 2 Review

... 36. Which part of the forebrain is the sensory relay station of the brain? 37. What is the only sense not routed through that area? 38. Which part of the brain controls our hunger and sex drives? 39. Which part of the forebrain is involved with memory formation but not storage? 40. What is the band ...
Sample Questions for Evaluation #1 – General
Sample Questions for Evaluation #1 – General

... d) operational definition. 10. The biggest danger of relying on case-study evidence is that it: a) overestimates the importance of operational definitions. b) is based on naturalistic observation. c) leads us to underestimate the causal relationships between events. d) may be unrepresentative of wha ...
The Nervous System
The Nervous System

... axon terminal, it stimulates the release of neurotransmitters from the “pre-synaptic” neuron into the synaptic cleft. These chemical ...
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The_nervous_system_notes

... The Nervous System Main function: ...
steps in nerve impulse transmission
steps in nerve impulse transmission

... 1. Neurotransmitters (NT) are chemicals released from one neuron at the presynaptic nerve terminal. 2. NT then cross the synapse where they may be accepted by the next neuron at a specialized site called a receptor 3. The action that follows activation of a receptor site may be either depolarizati ...
Local Cortical Circuits
Local Cortical Circuits

... Multi-Unit Analysis Limitations of Our Recordings Technique Analysis of Spike Trains by Renewal Density ...
Statistical models of network connectivity in cortical microcircuits
Statistical models of network connectivity in cortical microcircuits

... modeling is, therefore, the construction of random graphs that reflect both the variability and the main structural properties of real neural networks. Erdös-Rényi (ER) graphs, defined by a single parameter p which determines the probability of any directed edge, are among the simplest random models ...
Ch. 48-49 Nervous System 9e S13
Ch. 48-49 Nervous System 9e S13

... • Dopamine: reward, pleasure (“high”) – Loss of dopamine  Parkinson’s Disease • Serotonin: well-being, happiness – Low levels  Depression • GABA: inhibitory NT – Affected by alcohol ...
Computers are getting faster, capable of performing massive
Computers are getting faster, capable of performing massive

... and in the 1950s, algorithms began to be produced. The 60s and 70s brought promising ideas and mechanical methods of computation. The 80s and 90s began to use neural networks to model the neuron, in an effort for engineers to be able to build such neural networks. The brain sends its signals through ...
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What is the Nervous System?

...  Complex communication network – how your body/brain communicate ...
Nervous System
Nervous System

... 3 Brain Divisions 1. Cerebrum -Conscious activities, intelligence, memory, language, skeletal muscle movements, senses ...
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Nervous system network models

Network of human nervous system comprises nodes (for example, neurons) that are connected by links (for example, synapses). The connectivity may be viewed anatomically, functionally, or electrophysiologically. These are presented in several Wikipedia articles that include Connectionism (a.k.a. Parallel Distributed Processing (PDP)), Biological neural network, Artificial neural network (a.k.a. Neural network), Computational neuroscience, as well as in several books by Ascoli, G. A. (2002), Sterratt, D., Graham, B., Gillies, A., & Willshaw, D. (2011), Gerstner, W., & Kistler, W. (2002), and Rumelhart, J. L., McClelland, J. L., and PDP Research Group (1986) among others. The focus of this article is a comprehensive view of modeling a neural network (technically neuronal network based on neuron model). Once an approach based on the perspective and connectivity is chosen, the models are developed at microscopic (ion and neuron), mesoscopic (functional or population), or macroscopic (system) levels. Computational modeling refers to models that are developed using computing tools.
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