◆ SpookStack

my ccesideration of the physical fact: £ # ¢ 2 Nessa Sssiem ‘ SR wan F fans ta (as 3 Chasecs Produced tn thé Centea by Ulrasouad? Patrich DW 2.2, Williaa i. Fry, Rush Sczphens, Dre “~ -? tad - 2 z Lal Capea 7 is of ti neh wUSnee, ora Terome ¥. Feria Lirtertuent af t~sfomy, Univertits ef Caicaso, Chizar., thianis epertorent of Electrica! Eag.recrdeg, Uwltersity of 2 wea, Orbsme, aad Mantras Srote Bergptal, Maur, 24 Sfinois . .* Ultvssoucd of] prodzce specie ehar sag cectral cervers system sod {x fpueite beut ebvious eXocts on tutecumlicw esse, S348 reported hese hace bean gintind Primari! Steg Spins! cord, bat thotea—a Phescnina have “Mea seta ta tke rot spinal card und in the cerebrat fortes of the eat. The ireshad of tzralinting Us, varives physisfovical resulls oltniced, ond s detatte? % ts tnrolved heve been discussed tn Previous papers (1-3). TEs elects described here were obtzined with sound at a fre. Bere y QUency of F Me and at various scoustic Pre“sur: * Poss § days atte euput des, The media yced to transit the cour? from the source to the tissue were Prysological ¢ahus fous, The tolume and locatics of nerve tissue to be sfected can accirately controlled by {ccusiag of ¢ sound beam, and the nature and extent cf tke Jo. tton @esczts og th: Fresscre amytitude Posure. Sudvmation of the bio’: aratios of fhe ex % effects of short acoustic Buses gcrurs, so that it is Se to deliter a series of such Pulses acd peste: hisicgical eTeris without a serious coint.diat rise of temperature ig the volunre whieh is absorbing the sound energy. In frogs the ultrasound waz ineJe-- oa the spinal cord after passing through skin, mucele, and bene, bt io mamunals the spinal eord and cerebral Sorex were exposed before itcadiation because oz the Eick pbso 2 of eltrasound by bane... . Sten the lumbar region of the froz spinal cord Ass Lseg swbiected to large doses of nitersound,’ it is Kothd ithediatcty efter spicyre that the hind Jezs dade <asspitiety anesthetic im stdition to beine UPL TRS shot esartmitiok af thiie .cords-247 t&. BObent shoes coe Pe est rdetion ar a? Bony gts; “ls. anda ceelour fare th a % a: si “eT 1 Yas Spe eed au ote sy Bragcy fis it Exthcteters ef Mr: cht oe j gr ‘cor da not sfrear Za eantsact to sn istiag (tine ESrelysis xc unparclyzed Leeut ters Mew OF the skin of £0 tie “Eishalowion) gtisttee of whee. the Ineye ecity ix the anteslar 4, hase bron sovecoly Gemaned, a there and ¢hentere in the guy? is: Tra te? O33 #%tec ireadistien santa of tha wonge ells have agniented, cof the otkers ston char goin te Nis 208, atl pykaesis. Disrincement an2 snellirs? of- nucleus geeurs the rusiegr eicr, ning intact in those cellx that do a- 5 2, Blood vesseis, aud<he Sre Etery ia the spinal § 2 levery, ores “Pie, the spinst ~ ve Ts es thre ai tea oT ov a at ad oe et ye wea ey ft fe wt snuotted Sistal: sicaliy by this 9 ficsnze of cesustie radiztics, ¥ para. Meech géee hists’rg! ation icridfation., tn SSH grater deses Produce nd cosious Sing of § Perciysis er sensory change, alton ss Siste gical studies shaw tha. a lurge Perecutage of the srtering & ora eells within a Hmited extent ef the cord bare teen damaged; all oth.s elements Teh. apparent; normal. , These effects sre not caused by Ferature rise which acca: prnize ultrasonic propaga. rion through the tissue for tha oiliwing ressecs: I. Thersocoagulation atu tics ox the secsbeal cortex By Dasser de Barense and coMea gues bare showe that whes the lacve cells are destroyel be hosting, the small Cus in sbe tissug are also destroyed. Eowever, fron; thesa ricdiss With ailracound, ik i evident that the large cella are pat- sievlerts srusitive te the acoustic radia ss. : ®. Enperictents 9a cooled Frags thew that the aftra: round produces its efocts on the Ketve coils when the tem: Perature loved in the cor lis ace greater than 89° Cf). 4% Summarion of the Lisiegical efece. prodycs! b- socnd pulses separated by Peric-is of tine loag escaparel to the interval reqafrot fcr the tino ts reture to it bitisl temperature proves that parzizs’s is not derenient § SPOR Schidting any particular temperature level ie the apinsieord (33, 0 wolge sw § AM The “etperimentatty @etorained relation Ketweet Einlaegyh paroty ats time Baa acoustic peersure amr ined: ; shows {Nat fa} phe adrorgtion of wm cerstant amount of Brsistic egursy Be Ue merve slesce ts <2: a tate wy the tive rate Hf Was on gf Sturt ng F233 the ccineldect ten. hese a ; PSeh De Bein bea Ree stirs than shes eek BMBOLE Foaerre ts oc ox hr + e . PP LY thee ess ao, eters of Pe ae Gidot, B:2 Ney cP tlerayeye sé feos m: Sale GF 4 eg the smah E fier ints the mcheesn. fa, BS