http://www.ted.com/talks/christopher_decharms_scans_the_brain_in_real_time.html
Neuron All neurons are electrically excitable, maintaining voltage gradients across their membranes by means of metabolically driven ion pumps, which combine with ion channels embedded in the membrane to generate intracellular-versus-extracellular concentration differences of ions such as sodium, potassium, chloride, and calcium. Changes in the cross-membrane voltage can alter the function of voltage-dependent ion channels. If the voltage changes by a large enough amount, an all-or-none electrochemical pulse called an action potential is generated, which travels rapidly along the cell's axon, and activates synaptic connections with other cells when it arrives. Neurons do not undergo cell division. In most cases, neurons are generated by special types of stem cells. A type of glial cell, called astrocytes (named for being somewhat star-shaped), have also been observed to turn into neurons by virtue of the stem cell characteristic pluripotency.
About - Science360 iPad The National Science Foundation's (NSF) Science360 for iPad provides easy access to engaging science and engineering images and video from around the globe and a news feed featuring breaking news from NSF-funded institutions. Content is either produced by NSF or gathered from scientists, colleges and universities, and NSF science and engineering centers. If you have questions or comments, or if you are an NSF-funded researcher and would like to have your images or video included in the app, contact science360app@nsf.gov. Where does the content come from? Content is either produced by NSF or gathered from scientists, colleges and universities, and NSF science and engineering centers. How much does the app cost?
Functional magnetic resonance imaging Researcher checking fMRI images Functional magnetic resonance imaging or functional MRI (fMRI) is a functional neuroimaging procedure using MRI technology that measures brain activity by detecting associated changes in blood flow.[1] This technique relies on the fact that cerebral blood flow and neuronal activation are coupled. When an area of the brain is in use, blood flow to that region also increases. The primary form of fMRI uses the Blood-oxygen-level dependent (BOLD) contrast,[2] discovered by Seiji Ogawa.
Introducing the TED iPad App Today, TED releases the new TED iPad app, an innovative way to browse and watch TEDTalk video. The app redesigns the TED experience for the touchscreen, offering some cool iPad-only features for exploring, saving and watching. The iPad app, which is the first official mobile app released by TED, lets viewers browse our almost 800 TEDTalks, running from 3 minutes to 30 minutes long, on a wide range of topics. The app is free and can be downloaded through the App Store in iTunes. “The iPad presents a thrilling new platform for delivering a TED experience,” said June Cohen, Executive Producer of TED Media. “We rethought the user experience to take advantage of the portability, the touchscreen and the focused media time people have when they travel or settle in for an evening.
Diffusion MRI Diffusion MRI (or dMRI) is a magnetic resonance imaging (MRI) method which came into existence in the mid-1980s.[1][2][3] It allows the mapping of the diffusion process of molecules, mainly water, in biological tissues, in vivo and non-invasively. Molecular diffusion in tissues is not free, but reflects interactions with many obstacles, such as macromolecules, fibers, membranes, etc. Water molecule diffusion patterns can therefore reveal microscopic details about tissue architecture, either normal or in a diseased state. The first diffusion MRI images of the normal and diseased brain were made public in 1985.[4][5] Since then, diffusion MRI, also referred to as diffusion tensor imaging or DTI (see section below) has been extraordinarily successful.
Download the Pic Stitch app free for iOS devices December 26, 2012, 3:20 PM — Here's how you can download the Pic Stitch app free for your iPad, iPhone, iPad mini or iPod Touch. Download the Pic Stitch App Free From iTunes 1. Go to the Pic Stitch app preview page in iTunes. Brain Atlas - Introduction The central nervous system (CNS) consists of the brain and the spinal cord, immersed in the cerebrospinal fluid (CSF). Weighing about 3 pounds (1.4 kilograms), the brain consists of three main structures: the cerebrum, the cerebellum and the brainstem. Cerebrum - divided into two hemispheres (left and right), each consists of four lobes (frontal, parietal, occipital and temporal).
Apple Launches K-12 iPad Textbooks, New iTunes U & Self-Publishing Platform According to Apple (NSDQ: AAPL), education in the U.S. is plagued both by major institutional problems — low high-school graduation rates, abysmal rankings in science, math and reading — and by inconvenient, heavy and out-of-date print textbooks. The company hopes to remedy those challenges — and tap into the multi-billion-dollar education industry — by partnering with K-12 education publishers on a new iPad textbook initiative, iBooks 2, introduced this morning at an event at New York’s Guggenheim Museum. It is also expanding a revamped iTunes U to K-12 teachers and schools. In addition, Apple is releasing free software, iBooks Author, which allows users to create any type of interactive e-books — not just textbooks. Apple’s event today is the first since the death of Steve Jobs in October. According to Walter Isaacson’s biography of Jobs, the former Apple CEO “had his sights set on textbooks as the next business he wanted to transform.”
Electroencephalography Simultaneous video and EEG recording of two guitarists improvising. Electroencephalography (EEG) is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the brain.[1] In clinical contexts, EEG refers to the recording of the brain's spontaneous electrical activity over a short period of time, usually 20–40 minutes, as recorded from multiple electrodes placed on the scalp. Diagnostic applications generally focus on the spectral content of EEG, that is, the type of neural oscillations that can be observed in EEG signals. EEG is most often used to diagnose epilepsy, which causes obvious abnormalities in EEG readings.[2] It is also used to diagnose sleep disorders, coma, encephalopathies, and brain death.
Mobile Apps Featured: Pawsitive Change Smart Living Investing Streamlined eHow Mobile Apps Share 4 Great Rubrics to Help you Select Educational Apps As iPads are increasingly infiltrating our educational systems the question of the pedagogical implications ensuing from the use of these mobile gadgets in the classroom come to the surface. Some do look at them as an added distraction and that learning can be more focused without students having access to them during the class. Traditionalists do advocate this view and are , in fact, against the " over-digitization " of education. To these people I say what John Dewy once said " If we teach today as we thought yesterday, we rob our children of tomorrow ". What Is This App Thing Anyway? Image: Daniel Y. Go/Flickr Pop quiz, developers: What’s an app?
Best handwriting apps for the iPad Handwriting on your iPad has never been easier. There are numerous apps that incorporate this great feature. So, check out our list of the best handwriting apps for the iPad. Bamboo Paper Price: Free
Christopher de Charms demonstrates how accurate, fine-grained and real-time fMRI allows one to look at him own brain in action. This allows a person to actively exercise his brain. This supplements Ramachandran's [VS Ramachandran: on your mind] clinical research and treatment. DeCharms' work also allows using Gero Miesenboeck's approach [Gero Miesenboeck: reengineers the brain] on ungenetically altered humans. by kaspervandenberg Nov 7