The EffĘcts of In Partial 3ėĄLfil1n€nt of Tle B€qüireûents for Eh ...

perforn certaiD tasks. IhÈf shô*êd ihar- a t,ilateral
transaction of this Ëatb¡{aJ dces rìôt eed abiLitf to
perforÐ yoluntary môvenetìt, ¡or does it irìtêrfêre sith
the t.ra¡smj-ssio¡ Õf p€¡ipheral, stioulatioñ to the sen-
sorinctcr corter. Adrain {19r¡3) shoued that the body
surfêcê is Frcjêcted tc the c€rebel"lun i¡ th€ sane l{aT as
the tal.grephical arrangêñì€nt ia the cerebral cort€x.
Russiân studl by B€kaiã arìd $oniava{19ó3) hare deternined
eL êctr Õpåysia l ogica 1l y the Fat.hlra y b--t¡reen t.he ¡rsênso11-
motor ar€arr of the cerebel]"u and of th€ cerebruE. It is
shovn that thesê path*al¡s originâte i_n thê pararedial aad
ante:ior l-obules Õf cexehelius at]d reach thç cerêbra1
cortex via thÊ ipsilatèral de¡tate nuc.leus, the ante¡ior
ped€ncle of the ceEebêLl.ì¡n, the nesencepha1ôn, the thala-
&us aad th€ rÈtt nucleus. Thus,i*stead of consider j.ng the
pyranidal tracts the scL€ sexra¡t of voluntary üovên€nt
{Ganbarian"1966}, t&€ cer€b€llum is also ã* arêa of
terninaticn of th€ a.Ëf€¡€nt FathHay of the not.or anälyz-
€r. €ranit{1955} showed tåat nator functioB is great}y
serv€d. by extraFyranidal- F¿th¡ay via r¡hictr the cer+bral
st¡uctu¡€s exe.rt cont¡ol_ oyer vofu¡tary morenenÈs by
se].€ct j.vel-y cclìtxoLliüg the gamna €fferent sysÈets.
Tàe brain f u!.ctions in an j-ntegrat j-rJê sann€r.
Ðest¡uctic¡ of aãy bxain area $ay i¡f.l-uence other brain
cent€rs anä neural circuits affêrê¡t to,or ëfferent frcn
th€ area. fhe detay€d responsê ånd tenporal di.scrininätiÐn
are ïeny coûp].i.catêd t.asks consisiiûg of specific