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Joint EuroSPIN/NeuroTime Meeting 2013, January 14
Joint EuroSPIN/NeuroTime Meeting 2013, January 14

... The basal ganglia consist of several interconnected subcortical nuclei that are supposedly involved in many motor and cognitive functions. The striatum, the input stage of the basal ganglia, is a major recipient of massive glutamatergic inputs from the cerebral cortex and thalamus. Medium spiny neur ...
Nervous System Lecture- Part II
Nervous System Lecture- Part II

... B. Peripheral Nervous System (Cranial Nerves, Spinal Nerves, and Ganglia) The PNS is made up of cranial nerves, spinal nerves, and ganglia. They connect the brain and spinal cord with receptors, muscles, and glands. Cranial nerves carry signals to and from the brain Spinal nerves carry signals to an ...
6AOGPFTarget
6AOGPFTarget

... • The movement of growth cones is guided by both attractive and repulsive cues, which either activate or inhibit actin polymerization or the attachment of cell surface receptors to this substrata. • Two early theories: i. Axons advance more or less randomly and were “fine-tuned” as they reached thei ...
Paper
Paper

... delivery of an aversive stimulus (electric foot shock). Interestingly, fast spiking cells (putative inhibitory interneurons) and regular spiking cells (putative projection neurons) showed different patterns of responses. Fast spiking cell tended to show transient responses and increased their firing ...
Nervous System
Nervous System

... – The size and weight of the brain decreases – The senses gradually decline because the number of neurons in this area declines – The functions of all other neurons decreases because the number of neurons decline as well ...
Pain
Pain

... Specific functions of AMPA, NMDA and GABA receptor (including ion permeability, voltage-dependence and reversal potential) Metabotropic receptors Organization and principal function coupling to different transduction pathways G-protein-coupled receptors - Intracellular signaling, second messengers P ...
Part 1: From Ion Channels to behavior, HT2009 Course
Part 1: From Ion Channels to behavior, HT2009 Course

... Specific functions of AMPA, NMDA and GABA receptor (including ion permeability, voltage-dependence and reversal potential) Metabotropic receptors Organization and principal function coupling to different transduction pathways G-protein-coupled receptors - Intracellular signaling, second messengers P ...
Discoveries From the Deepest Sleep
Discoveries From the Deepest Sleep

... a floating breakwater to protect its boats. Each year, the breakwater is pulled from the water at the end of the boating season, just before the swans arrive. It goes back in during the spring, after the swans leave for summer breeding. “It’s like a waltz,” says Kingdon, who was among the original v ...
Document
Document

... has a vast array of different functions in the cell calcium signals can be distinguished in singel calcium spikes and calcium waves calcium waves can occur intracellular as well as intercellular and they can occur in nearly all cells the function of calcium waves are still unkown ...
Christof Koch, , 96 (1999); DOI: 10.1126/science.284.5411.96
Christof Koch, , 96 (1999); DOI: 10.1126/science.284.5411.96

... links are not essential for survival of the organism. Hence, the probability of obtaining, through the vagaries of evolution, a brain that does many things well with a single, pluripotent network must be very low. In contrast, the probability of evolving brains with separated subsystems—some for con ...
to find the lecture notes for lecture 6 nervous tissue click here
to find the lecture notes for lecture 6 nervous tissue click here

... “lockjaw” – muscle stiffness usually involves jaw and neck first interferes with the release of neurotransmitters that result in inhibition of muscle contraction – neuronal targets are peripheral motor end plates, CNS, sympathetic NS – lethal dose = 2.5 ng per kg body weight (e.g. 70 ng for 175 lbs) ...
Divisions of the Nervous System
Divisions of the Nervous System

... • Convey incoming messages toward cell body as graded potentials (short distance signals) ...
Yuste-Banbury-2006 - The Swartz Foundation
Yuste-Banbury-2006 - The Swartz Foundation

... almost completely on NMDA receptor activation, even with low-frequency stimulation. The inhibitory neurotransmitter GABA also increased [Ca2+]i, probably via voltage-sensitive Ca2+ channels, whereas the neuromodulator acetylcholine caused Ca2+ release from intracellular stores via a muscarinic recep ...
The visual system
The visual system

... ratchet or jerky quality of movement - almost no other disease produces this symptom), 4) slow shuffling gait, short steps with the patient bent or flexed over (very characteristic of PD) and 5) loss of facial expression and lack of spontaneous blinking which gives the appearance staring. ...
Biological Bases of Behavior, Barron`s Neuroanatomy, pages 78
Biological Bases of Behavior, Barron`s Neuroanatomy, pages 78

... 10. Why are neurotransmitters important ? - enable neurons to communicate 11. What does it take for a neuron to fire? - terminal buttons on one neuron are stimulated and release transmitters into the synapse - neurotransmitters fit reception sites on the dendrites of the next neuron - next neuron ce ...
The Nervous System
The Nervous System

... The Peripheral Nervous System • All of the nerves that are not a part of the central nervous system. • Somatic nervous System - regulates activities that are under conscious control (muscles) and pain reflexes. • Autonomic Nervous System – regulates activities that are automatic or involuntary. • E ...
00216 - UROP
00216 - UROP

... Activation of group I metabotropic glutamate (mGlu) receptors causes the endocannabinoid system to induce both short- and long-term changes in synaptic strength in the striatum, the hippocampus, and other regions of the brain. Although current electrophysiological evidence suggests a role for the re ...
A nerve cell
A nerve cell

... The levels of nerve growth factors continue to increase during regularly repeated exercise for several months. For nerve growth factors optimal effect is attained by training only every second day, but the perspective is lifelong, training works at all ages. Regardless of outset – physical condition ...
Chapter 12 Notes - Las Positas College
Chapter 12 Notes - Las Positas College

... B. Neurons are composed of three main parts: the cell body (soma), dendrites, and an axon. (Figs. 12.4–12.5) 1. The cytoplasm of the cell body contains all the usual organelles and chromatophilic bodies. Most neuronal cell bodies are located within the CNS; those in the PNS are termed ganglia. 2. De ...
FIGURE LEGENDS FIGURE 35.1 Functional organization of the
FIGURE LEGENDS FIGURE 35.1 Functional organization of the

... activity, sufficient for breathing at rest. Endogenous stimulation of the RTN/pFRG by elevated CO 2, or perhaps exercise, is hypothesized to produce active expiration (absent at rest in adult mammals). The above figure summarizes results discussed in the text. FIGURE 35.8 Functional organization of ...
Ciliary Neurotrophic Factor (CNTF) (Human) Cat. No. HEOPP
Ciliary Neurotrophic Factor (CNTF) (Human) Cat. No. HEOPP

... Ciliary neurotrophic factor (CNTF) is a polypeptide initially purified from chick embryo ocular tissue and identified as a trophic factor for embryonic chick ciliary parasympathetic neurons in culture. Subsequent studies have demonstrated that CNTF is a survival factor for additional neuronal cell t ...
Ciliary Neurotrophic Factor (CNTF) (Human) Cat. No. HEOPP
Ciliary Neurotrophic Factor (CNTF) (Human) Cat. No. HEOPP

... Ciliary neurotrophic factor (CNTF) is a polypeptide initially purified from chick embryo ocular tissue and identified as a trophic factor for embryonic chick ciliary parasympathetic neurons in culture. Subsequent studies have demonstrated that CNTF is a survival factor for additional neuronal cell t ...
Temporal Aspects of Visual Extinction
Temporal Aspects of Visual Extinction

... • Gray Matter: The neurons or cells which have specialized neurologic functions (motor or sensory) • White Matter: Axons which form pathways for conducting different types of information. ...
Homework 4
Homework 4

... Problem 5. You are recording from a cell in the hippocampus. What are your expectations for the specificity of this cell? classes of objects? abstract concepts? individual objects/people? auditory sequences? Problem 6. Where are the cells of the neuronal ensemble encoding your favorite cup located i ...
Structure of a Neuron Transmission of “Information” Nerve Impulse
Structure of a Neuron Transmission of “Information” Nerve Impulse

... Axon Takes information away from the soma Unbranched except at its end Terminal part – swellings ...
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Optogenetics



Optogenetics (from Greek optikós, meaning ""seen, visible"") is a biological technique which involves the use of light to control cells in living tissue, typically neurons, that have been genetically modified to express light-sensitive ion channels. It is a neuromodulation method employed in neuroscience that uses a combination of techniques from optics and genetics to control and monitor the activities of individual neurons in living tissue—even within freely-moving animals—and to precisely measure the effects of those manipulations in real-time. The key reagents used in optogenetics are light-sensitive proteins. Spatially-precise neuronal control is achieved using optogenetic actuators like channelrhodopsin, halorhodopsin, and archaerhodopsin, while temporally-precise recordings can be made with the help of optogenetic sensors for calcium (Aequorin, Cameleon, GCaMP), chloride (Clomeleon) or membrane voltage (Mermaid).The earliest approaches were developed and applied by Boris Zemelman and Gero Miesenböck, at the Sloan-Kettering Cancer Center in New York City, and Dirk Trauner, Richard Kramer and Ehud Isacoff at the University of California, Berkeley; these methods conferred light sensitivity but were never reported to be useful by other laboratories due to the multiple components these approaches required. A distinct single-component approach involving microbial opsin genes introduced in 2005 turned out to be widely applied, as described below. Optogenetics is known for the high spatial and temporal resolution that it provides in altering the activity of specific types of neurons to control a subject's behaviour.In 2010, optogenetics was chosen as the ""Method of the Year"" across all fields of science and engineering by the interdisciplinary research journal Nature Methods. At the same time, optogenetics was highlighted in the article on “Breakthroughs of the Decade” in the academic research journal Science. These journals also referenced recent public-access general-interest video Method of the year video and textual SciAm summaries of optogenetics.
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