UT NEU 330 - Experiments and Data (2 pages)

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Experiments and Data



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Experiments and Data

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The beginning of different types of neuroscience experiemnts


Lecture number:
2
Pages:
2
Type:
Lecture Note
School:
University of Texas at Austin
Course:
Neu 330 - Neural Systems I
Neural Systems I Documents

Unformatted text preview:

NEU 330 1st Edition Lecture 2 Outline of Last Lecture I II Computation Examples of Neuroscience Cases Outline of Current Lecture I II III IV Anatomy Lesions Recording MRI Current Lecture There are multiple types of neuroscience experiments and data Some are A Anatomy a Camillo Golgi i stained neurons ii His interpretation Reticular Theory all cells are connected so that the brain is like 1 cell with subdivisions b Santiago Ramon Cajal i Golgi s technology microscope artistic ability ii His interpretation Neuron Doctrine individual cells neurons have similar processes and must communicate with one another iii CORRECT THEORY c Wiring diagram i How parts are connected ii Kill brain and look for dead parts d MRI connectivity maps i Shows axons ii brainbow picture seen on PowerPoint B Lesions a Experiments testing lesions are done by either i Neuropsychology on already damaged humans ii Experimental lesions on animals with induced lesions b Reversible lesions infuse a substance into the brain to temporarily silence the neurons i EX optogenetics shine light on these neurons and they go quiet 1 Messes with the ion channels 2 Gives specificity for type of neurons C Recording a Neurons are electrical devices therefore their voltage can be measured b When an electrode is stuck inside of the cell you can see NEU 330 i Fluctuations aka neurons thinking ii Extracellular actions iii Full voltages c Voltage clamp i Preferred over electrodes ii Important discovery in understanding how neurons work D MRI a Measures O2 levels of blood b Shows which parts of the brain are active at any moment c O2 levels in specific area of brain drop when that part is active 1st Edition



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