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Brain Structure and Functioning in Relation to Outdoor Space
Brain Structure and Functioning in Relation to Outdoor Space

... person’s brain are activated. The activity ...
Biology 3201
Biology 3201

... ions causing them to “leak” out. This causes outside of membrane to have an abundance of + charges compared to inside. The inside of the membrane is negative compared to the outside. This is helped by the (-) proteins etc. The “sodium-potassium” pump pulls 2 K+ ions in for 3 Na+ ions sent out. This ...
ppt
ppt

... Website: http://mcdb.colorado.edu/courses/3650 ...
Chapter 28: Nervous System
Chapter 28: Nervous System

... Small peptides that decrease pain perception by CNS. Natural painkillers produced in times of stress (childbirth). Also decrease urine output, depress respiration, and cause euphoria and other emotional effects on brain. Heroin and morphine mimic action of endorphin. ...
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Ch02
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... Caption: (a) Action potentials are recorded from neurons with tiny microelectrodes that are positioned inside or right next to the neuron’s axon. These potentials are displayed on the screen of an oscilloscope and are also sent to a computer for analysis. (b) An action potential recorded by a micro ...
BOX 2.1 THE NEURON DOCTRINE The cell theory, which states
BOX 2.1 THE NEURON DOCTRINE The cell theory, which states

... contemporary neuroscience and without doubt the greatest observer of neuronal architecture. In beautifully written and carefully reasoned deductive arguments, Cajal presented us with what is now known as the neurondoctrine. This great concept in essence states that the cell theory applies to the ner ...
They Come From the Cortex - American Association of Sleep
They Come From the Cortex - American Association of Sleep

... Due to volume conduction (the process of current flow through the tissues between the electrical generator and the electrode) and summation of solid angles we see data from sources of at least several centimeters, independent of our electrode size, and potentially generated by many local sources. Du ...
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... impulse along length of axon All or None Principle – must reach a threshold level or the impulse dies Covered by a white covering called a myelin sheath (Schwann Cells), an insulator Myelin sheath causes the ion exchange to occur only at the nodes which speeds up the process For a short time after d ...
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Differential Permeability of the Membrane

... When a neuron fires, certain gates open up that allow Sodium to flow in. When sodium flows in the electrical charge is neutralized across the membrane. Then the sodium channels close, and potassium channels open, allowing potassium to leave the cell. ...
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301 Definitions – Revised Shannon Benson

... The objective of this assignment is to gain experience in defining complex technical terms for an audience of non-technical readers. In particular, the intended audience for these definitions is a person who is taking an introductory level psychology class. Three types of definitions will be given f ...
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Technical Definitions

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Structure of the Brain PowerPoint Notes

... place segment by segment as they move down the length of the axon • ____________________ – if an action potential starts at the beginning of the axon, the action potential will continue at the same speed segment to segment to the very end of the axon Sending information – ___________________________ ...
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... transduced to the form of chemical signal that can diffuse across the cleft and activate or inhibit target cell Chemical synapse: functional bridge between a neuron and some other cell Synapse means to fasten together ...
anatomy of a neuron worksheet
anatomy of a neuron worksheet

... may cause the skeletal muscles to contract, the internal organs to operate, or the glands to release their chemicals. In many ways, a neuron is like an electric wire. Although electric wires and neurons carry signals in different ways, their basic jobs are the same; to carry electricity. An electric ...
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The Nervous System

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The Neuron

... - Inside neuron = mostly negative charge  This is how it stays when at resting state  When stimulated by incoming message - Cell membrane open and the positive ions rush in when enough has entered to make the inside more positive than the outside. The cell membrane closes again. This opens/close o ...
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ppt - UTK-EECS
ppt - UTK-EECS

... One argument: Instead of understanding the human brain, we understand the computer. Therefore, NN dies out in 70s. 1980s, Japan started “the fifth generation computer research project”, namely, “knowledge information processing computer system”. The project aims to improve logical reasoning to reach ...
Chapter 3 Notes (part 1) 1. Basic Elements of the Nervous System (a
Chapter 3 Notes (part 1) 1. Basic Elements of the Nervous System (a

...  selectively-permeable membrane which separates the cytoplasm from the extracellular matrix  contains ion channels and protein pumps which manage the flow of ions (charged particles) into and out of the cell C. Axon  The part of the cell which carries the electrical signal (action potential); in ...
Chapter 3 Synapses
Chapter 3 Synapses

... • Two EPSPs in rapid succession at one synapse are additive • Same for IPSPs Spatial Summation • Synaptic inputs from separate locations combine their effects on a neuron ...
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Single-unit recording

In neuroscience, single-unit recordings provide a method of measuring the electro-physiological responses of single neurons using a microelectrode system. When a neuron generates an action potential, the signal propagates down the neuron as a current which flows in and out of the cell through excitable membrane regions in the soma and axon. A microelectrode is inserted into the brain, where it can record the rate of change in voltage with respect to time. These microelectrodes must be fine-tipped, high-impedance conductors; they are primarily glass micro-pipettes or metal microelectrodes made of platinum or tungsten. Microelectrodes can be carefully placed within (or close to) the cell membrane, allowing the ability to record intracellularly or extracellularly.Single-unit recordings are widely used in cognitive science, where it permits the analysis of human cognition and cortical mapping. This information can then be applied to brain machine interface (BMI) technologies for brain control of external devices.
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