• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
nerve slide show
nerve slide show

... • As a result, the brains of people with Parkinson's disease contain almost no dopamine • To help relieve their symptoms, we give these people L-DOPA, a drug that can be converted in the brain to dopamine. ...
Module 2.1 Neurons: The Body`s Wiring Lecture Outline
Module 2.1 Neurons: The Body`s Wiring Lecture Outline

... The Major Parts of the Brain (Concept Chart 2.3) A. Hindbrain—the lowest part of the brain where the spinal cord enters the skull 1. Medulla—controls vital bodily processes such as heart rate, breathing, and reflexes like swallowing, coughing, and sneezing 2. Pons—helps regulate states of wakefulnes ...
2 Guided Notes for PPT 7, Hearing and Sight
2 Guided Notes for PPT 7, Hearing and Sight

... Both senses reside in the inner ear within a maze of fluid filled passages and sensory cells. Sensory cells convert this motion into a pattern of _________________________ ...
What is an adult stem cell?
What is an adult stem cell?

... 3. candidate adult SC can be isolated, grown in vitro and manipulated, by adding growth factors or introducing genes that help determine what differentiated cells types they will yield. ...
$doc.title

... •  How  does  the  brain  represent  and  process   informa
Anatomy Physiology Final Exam Review
Anatomy Physiology Final Exam Review

... 70. While talking to his mother in the kitchen, Gregory accidently touches a hotplate that is still warm. If his nervous system works properly, which of the following should explain Gregory’s actions? a. Gregory’s sensory neurons sends signals to his motor neurons, instructing him to jump away from ...
The neuroscience of depression: why does it matter?
The neuroscience of depression: why does it matter?

... - Ventral ‘Affective’ division (blue); “Activated in conflict between incompatible streams of information. Following conflict detection, the lateral prefrontal cortices… are engaged to resolve the conflict.” (Van Veen and Carter, 2002) - May also be involved in post hoc error detection - Can functio ...
The Nervous System
The Nervous System

... out from the cell body receive impulses from other neurons and carry impulses to the cell body Axon the long fiber that carries impulses away from the cell body ends in a series of small swellings called axon terminals As an impulse moves along the axon, it jumps from one node to the next. ...
Total Control - Beacon Learning Center
Total Control - Beacon Learning Center

... We all use computers for learning and fun, but do you know about the greatest computer of all? The human body is the most powerful computer ever with the nervous system serving as the technology center for our bodies. The nervous system has two main organs, the brain and the spinal cord. Cells calle ...
SinirBilimin Kısa Tarihi
SinirBilimin Kısa Tarihi

... Extreme localism and holism have both been replaced by "connectionism." This view contends that lower level or primary sensory/motor functions are strongly localized but higher-level functions, like object recognition, memory, and language are the result of interconnections between brain areas. In a ...
Darwin VII after - Ohio University
Darwin VII after - Ohio University

... robot series simulate other brain regions. All are run by brain-like neuronal nets with thousands of "neurons." Such models help to test out our detailed models of the brain at the level of cell assemblies. (With thanks to Dr. Jeff Krichmar, The Neurosciences Institute, San Diego, www.nsi.edu). To a ...
Optogenetic Brain Interfaces
Optogenetic Brain Interfaces

... instance, implanted electrodes in Parkinsonian patients stimulate most cells in their reach with no preference to target any specific cell-type, and as a result, cause several side effects including depression, mood alteration, or sensory and motor control problems which are all suppressed by turnin ...
Functional and metabolic imaging of the brain: New perspectives for
Functional and metabolic imaging of the brain: New perspectives for

... This presentation will cover the aspects of modern biomedical imaging as related to the study of brain function and metabolism. Today's biomedical problems increasingly rely on imaging as a crucial means to extract non-invasively increasingly precise information from the living tissue. The comprehen ...
Nervous System Objectives
Nervous System Objectives

... 10. Label a diagram of a synaptic region and tell where neurotransmitters are released, direction of impulse travel, ion flow, and fusion of the neurotransmitter occur. 11. Identify the types of receptors and the structures found in the vision and hearing receptors. 12. Elaborate on the nervous syst ...
Ch. 2 - WordPress.com
Ch. 2 - WordPress.com

... Synapse - receptors Dendritic spines  Postsynaptic ...
The human brain
The human brain

... We are born with a complete set of neurons.   What changes in maturation is the connections between the neurons.   On average, we lose about 20% of our neurons by the time we die. ...
Viral vector-based tools advance knowledge of basal ganglia
Viral vector-based tools advance knowledge of basal ganglia

... adeno-associated virus; lentivirus; basal ganglia neuronal phenotypes; optogenetics; DREADDs; confocal and electron microscopy ...
file - Athens Academy
file - Athens Academy

... This type of cell produces the cerebrospinal fluid that fills the central canal in the spinal cord and the ventricles within the brain. ...
The Human Brain
The Human Brain

... The human brain is probably the most complicated thing in the universe. It weights about 3lbs and has the texture of toothpaste. It is made up of 50 to 100 billion nerve cells called neurons as well as 500-1000 billion other cells. Neurons have a cell body with lots of branches coming off them calle ...
Neurotechnique Targeted Whole-Cell Recordings in the Mammalian
Neurotechnique Targeted Whole-Cell Recordings in the Mammalian

... close contact. However, seal formation between the targeted neuron and the patch pipette was almost never successful under strong illumination. One possible reason for the failure of seal formation could be photodamage of the targeted neuron or photo-chemical interactions between the laser and the i ...
Sensation and Perception
Sensation and Perception

... environmental stimuli (sounds, objects, odors) Perception: occurs when we integrate, organize, and interpret sensory information in a meaningful way No clear boundary line between the two processes- psychology often regards the two processes as a single process ...
Unlocking the Brain`s Deepest Secrets
Unlocking the Brain`s Deepest Secrets

... how we maintain memories in our brains for up to our entire lifetimes,” says Sakina Palida, a graduate student in Roger Tsien’s lab at the University of California, San Diego. Our current understanding is that memories are formed when the synapses—the spaces between two neurons—in our ...
VII. The Nervous System
VII. The Nervous System

... cell and binds to receptors on a postsynaptic cells causing it to fire. a) An action potential arriving at the synaptic terminal at the end of an axon causes Ca+2 to rush through voltage sensitive channels b) The sudden in rush of Ca+2 causes synaptic vesicles which contain neurotransmitters to fuse ...
1. The left and right hemispheres communicate with each other
1. The left and right hemispheres communicate with each other

... a. larger regions are dedicated to larger body segments b. the regions controlling the lips, jaw and tongue are farther from the lateral fissure than the region controlling the arm c. long stimulation of a region produces movements to particular locations d. different regions receive signals from mu ...
1 - UCL
1 - UCL

... (3 – 8 Hz) as synaptic plasticity is induced, and analyse the synchronisation in terms of phase between the local theta oscillation and the coordination of ‘spike’ timing. Spikes of individual neurons timed against the local field potential (LFP) – the ‘coordinated action-potential timing across pop ...
< 1 ... 368 369 370 371 372 373 374 375 376 ... 467 >

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report