Electroencephalogram (EEG) Images Showing the Impact of ... · Electroencephalogram (EEG) Images...
Transcript of Electroencephalogram (EEG) Images Showing the Impact of ... · Electroencephalogram (EEG) Images...
Electroencephalogram(EEG)ImagesShowingtheImpactofSoundontheBrain
(ImagestakenfromresearchbyAlexandreTannous)Electroencephalography(EEG)isthemethodusedformeasuringandrecordingthebrain’sspontaneouselectricalactivity.Toappreciatethisitisfirstrelevanttounderstandthevariousactivitywavestatesofthebrain.Itmaybehelpfultodescribetheseasthefivegearsofthebrain.Eachgearisrepresentedbyadifferentwavepatterninthegraphbelow.Throughoutthedayourbrainscirculatebetweeneachofthesebrainwavestatesorgearsdependingontheactivitiesthebodyand/ormindisinvolvedin.
AcollectionofEEGscanstakenaspartofresearchbyAlexandreTannousintotheaffectsofharmonicproducinginstrumentsonthebrainwavefrequency.ItshouldbenotedthattheEEGscannermonitorstheelectricalactivityonthesurfaceofthebrain,soisonlyindicativeofthebrainwaveaffectsofhearingsounds.Therearesizedistinctlevelstothebrainthatarelikelytorespondindifferentways.
TheBaselinescanshownbelowwastakenwhenthesubjectwaslyingdownwithablindfoldon,inarelaxedstatepriortoanyexposuretosound.Theelectricalactivityheresimplerepresentsthepassivebrainstateandillustratesthevolumeofactivitygoingoninthe‘MonkeyMind’.TheEEGimagespresentthescansfromtheLeftandRighthemispheresotheycanbedirectlycomparedinrealtime.Theimagerepresentsatimespanofaboutsixsecondsofbrainactivity.ThefivebrainwavestatesaremeasuredinHzalongthebottomofthegraphs.BrainwaveactivityisshownintheverticalplainandismeasuredinMicro-Volts,whichisapproximatelyonemillionthofavolt.ColoursrepresentdifferentintensitiesofbrainwaveactivityfromBlue,Green,Red,Orange,YellowandfinallyWhite.
Fromaneuroscienceperspectivetheaboveimageisindicativeofthesleepingstateofthebrain,butthispersonisnotsleeping.Thisisanalmostinstantaneousresponsethatoccursafteralargegongisplayed.Thesoundofthegongappearstoaffectthesubjectsawarenessinawaythatallthoughtprocessaredisruptedandbrainwaveactivityalmoststops.
Note:imagestakenasscreenshotsfromtheyoutubepresentationbyAlexandreTannousavailablehere:https://www.youtube.com/watch?v=hFMa7PGEq0A
ThebrainactivityinthesecondEEGischaracteristicofemotionalresponses,withthelargeroundedpeaksratherthanthemanysharppointsthatcharacterisethe‘MonkeyMind’
Thesoundsignatureofthedrumisquitedifferentfromharmonicinstruments,butitcanstillproduceacomplexcombinationofovertones.ThesignificanceoftheEEGaboveisthesynchronicitybetweenthetwohemispheresofthebrain.Thebrainwaveactivityisreduced,butstillactiveandappearscontained.
ThechacapaisaleafrattleusedduringAyahuascaceremonies,whichisusedincloseproximitytothebodytoinduceatactile(touch)response,whilealsoproducingasent.Thismeansthatthebrainisrespondingtoacomplexcombinedstimulationfromatleastthreesenses.Meanwhile,theEEGscanfromtheincensePaloSantoalsousedinAyahuascaceremoniesandasasmudgingincensepriortootherceremonialactivities,canclearlybeseentostimulateadramaticbrainactivityresponse.Notewherethisactivityisinthelowerbrainwavestates(thelimbicsystem)representingadramaticinfluenceontheemotionalstateofthesubjectsinvolved.