Support independent publishing: buy this book on Lulu.

Sunday, October 04, 2009


Like heart studies, brain electric activity is studied for years. It is also known that meditation induces changes in patterns of cerebral electric waves. Based on the precedent thing it is sought to institute electric treatments by means of Transcranial Magnetic Stimulation (TMS) altering the brain function with electric impulses of low voltage, driven by superficial electrodes near the motor cortex. achieving volunteers to execute slow movements, improve their touch or evoke visual perceptions depending of the frequency of electric stimulation. With the variant Alternating Current Transcranial Stimulation (TACS), researchers of the University College London, achieved volunteers to mobilize their arms slowly while struggled to locate circles in screens of PCs. The TACS is non invasive neurotechnology that transfers painless electricity through the intact skull.

The TACS uses alternating sinusoidal current of low voltage: theta (4-8 Hz), alpha (8-14 Hz), beta (14-22 Hz) and gamma (>30 Hz), equalized to intrinsic cerebral rhythm. During experiments brain waves associated to lingering tonic contractions and to those of phase REM (dream stadium), were measured, needing the volunteers 10% of but activity beta before the execution of deliberate movements. In illnesses like Alzheimer, Huntigton, where the activity beta is high the TACS, would be of utility. This technique also improve verbal fluency, cognitive deterioration, chronic pain, tinnitus and will be useful in stroke rehabilitation, schizophrenia, epilepsy and depression. It has few side effects: rare cases of inductions of epileptic attacks, skin rash, etc.

Al igual que la cardiaca, la actividad eléctrica cerebral es estudiada desde hace años. Además se sabe que la meditación induce cambios en patrones de ondas eléctricas cerebrales. Basados en lo precedente se pretenden instituir tratamientos eléctricos mediante Transcranial Magnetic Stimulation (TMS) alterando la función cerebral con impulsos eléctricos de bajo voltaje, conducidos por electrodos superficiales cerca de la corteza motora, logrando que voluntarios ejecuten movimientos lentos, mejoren su sentido del tacto o evoquen percepciones visuales dependientes de la frecuencia de estimulación eléctrica. Con la variante Alternating Current Transcranial Stimulation (TACS), investigadores del University College London, lograron que voluntarios movilizaran sus brazos lentamente mientras pugnaban por ubicar círculos en pantallas de PCs. La TACS es neurotecnologia no invasiva que transfiere electricidad indolora a través del cráneo intacto.

La TACS usa corriente alterna sinusoidal de baja amplitud :theta (4-8 Hz), alfa (8-14 Hz), beta (14-22 Hz) y gamma (>30 Hz), igualadas al ritmo intrinseco cerebral. Durante los experimentos también se midieron ondas cerebrales asociadas a contracciones tónicas prolongadas y a las de fase REM (estadio del sueño), necesitando los voluntarios 10% de mas actividad beta antes de la ejecucion de movimientos deliberados. En enfermedades como Alzheimer, Huntigton, donde la actividad beta es alta la tACS, seria de utilidad. Esta técnica también mejora la fluencia verbal, el deterioro cognitivo, el dolor crónico, tinnitus, rehabilitación post accidentes cerebrovasculares, equizofrenia, epilepsia y depresión. Tiene pocos efectos colaterales :raros casos de inducciones de ataques epilépticos, rash de piel, etc.



Blogger ninest123 Ninest said...

ninest123 12.28
tiffany jewelry, burberry, louboutin outlet, ray ban sunglasses, ray ban sunglasses, longchamp outlet, michael kors outlet, louis vuitton outlet, ugg boots, louis vuitton outlet, prada handbags, ray ban sunglasses, oakley sunglasses, nike free, louboutin, polo ralph lauren outlet, nike air max, ugg boots, oakley sunglasses, chanel handbags, nike air max, michael kors outlet, nike outlet, louis vuitton, prada outlet, longchamp outlet, longchamp, michael kors, louboutin shoes, gucci outlet, ugg boots, christian louboutin outlet, louis vuitton, louis vuitton, replica watches, oakley sunglasses, michael kors outlet, jordan shoes, uggs on sale, burberry outlet online, tiffany and co, cheap oakley sunglasses, michael kors outlet, tory burch outlet, ugg boots, polo ralph lauren outlet, replica watches, michael kors outlet, oakley sunglasses

6:53 PM  
Blogger ninest123 Ninest said...

michael kors, hollister, coach purses, coach outlet, true religion jeans, north face, burberry, nike trainers, true religion jeans, ray ban uk, nike roshe, michael kors, vanessa bruno, ralph lauren pas cher, nike blazer, replica handbags, nike roshe run, ralph lauren uk, nike free, abercrombie and fitch, ray ban pas cher, lululemon, air jordan pas cher, true religion jeans, air force, lacoste pas cher, sac guess, hogan, tn pas cher, hermes, air max, michael kors, vans pas cher, nike free run uk, timberland, nike air max, new balance pas cher, hollister pas cher, nike huarache, converse pas cher, longchamp pas cher, nike air max, michael kors, nike air max, louboutin pas cher, oakley pas cher, north face, true religion outlet, sac longchamp, mulberry

6:56 PM  
Blogger ninest123 Ninest said...

abercrombie and fitch, north face outlet, ray ban, ipad cases, iphone 6s cases, instyler, baseball bats, oakley, insanity workout, valentino shoes, bottega veneta, ralph lauren, p90x workout, asics running shoes, vans shoes, reebok shoes, iphone cases, converse, ferragamo shoes, nfl jerseys, iphone 6s plus cases, soccer jerseys, iphone 6 plus cases, iphone 5s cases, north face outlet, nike air max, chi flat iron, new balance, iphone 6 cases, hollister, hollister, ghd, celine handbags, mcm handbags, mac cosmetics, birkin bag, nike roshe, s5 cases, babyliss, beats by dre, mont blanc, herve leger, louboutin, jimmy choo shoes, timberland boots, nike air max, gucci, vans, giuseppe zanotti, soccer shoes, wedding dresses, lululemon

6:58 PM  
Blogger ninest123 Ninest said...

supra shoes, links of london, pandora charms, ugg,ugg australia,ugg italia, converse outlet, lancel, doke gabbana outlet, hollister, barbour jackets, moncler, louis vuitton, wedding dresses, louis vuitton, moncler, ugg,uggs,uggs canada, barbour, sac louis vuitton pas cher, moncler, thomas sabo, canada goose outlet, canada goose, pandora jewelry, ugg boots uk, moncler, canada goose, doudoune canada goose, marc jacobs, toms shoes, coach outlet, canada goose outlet, bottes ugg, canada goose, moncler outlet, louis vuitton, moncler, replica watches, moncler, canada goose uk, pandora jewelry, swarovski, juicy couture outlet, montre pas cher, canada goose, pandora charms, moncler, karen millen, ugg pas cher, swarovski crystal, louis vuitton, juicy couture outlet
ninest123 12.28

7:01 PM  

Post a Comment

<< Home