The Effect Of Stimulating Brain Oscillations On Memory...

In recent years, a growing number of research has looked at the effects of stimulating brain oscillations on memory performance. Brain oscillations are fluctuations in local field potentials, caused by the input of neurons in to a specific cell assembly (Hanslmayr, Staudigl, Fellner, 2012). In response to a stimulus, alpha (~10 Hz) and beta (~15-30 Hz) oscillation power decrease in activity, while theta (~4-7 Hz) and gamma (~40-100 Hz) oscillations increase (Hanslmayr Staudigl, 2014). The changes in oscillatory power evoked by a stimulus modulate synaptic plasticity, the basis of memory formation (Dà ¼zel, Penny, Burgess, 2010). Transcranial alternating current stimulation (tACS) is a non-invasive brain stimulation technique used in the entrainment of cortical oscillations (Ali, Sellers, Frà ¶hlich, 2013). tACS induces extracellular voltage fluctuations that arise from neural activity via electrodes placed on the scalp (Jutras Buffalo, 2014). It allows the frequency and amplitude of oscillations to be alternated during stimulation, in a way that is less likely to entrain oscillations other than the intended frequency, making it a more specific technique to use (Herrmann, Rach, Neuling, Strà ¼ber, 2013). The basic assumption is that if oscillations are essential to a specific cognitive function, then using tACS to stimulate these oscillations should elicit that particular function (Sejnowski Paulsen, 2006). The current study will use tACS in order to monitorShow MoreRelatedMarketing Management130471 Words   |  522 Pagesworld the vocabulary of management was suddenly expanded by the discussion of â €˜green consumers’, ‘green markets’ and ‘green products’ and the practice of ‘environmental’ or ‘green marketing’. For majority of the companies improving environmental performance has, until recently, been a question of legislative compliance and occasional reactions to external events and pressures. It has only been companies in the front-line sectors such as oil, chemicals, power and cars that have gone beyond a reactiveRead MoreOne Significant Change That Has Occurred in the World Between 1900 and 2005. Explain the Impact This Change Has Made on Our Lives and Why It Is an Important Change.163893 Words   |  656 PagesE SSAYS ON TWENTIETH-C ENTURY H ISTORY In the series Critical Perspectives on the Past, edited by Susan Porter Benson, Stephen Brier, and Roy Rosenzweig Also in this series: Paula Hamilton and Linda Shopes, eds., Oral History and Public Memories Tiffany Ruby Patterson, Zora Neale Hurston and a History of Southern Life Lisa M. Fine, The Story of Reo Joe: Work, Kin, and Community in Autotown, U.S.A. Van Gosse and Richard Moser, eds., The World the Sixties Made: Politics and Culture in