22.07.2013 Views

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

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

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

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

vioural a:ìd êlect_rophysiolcgical activity ¡¡ere obs€rïed.<br />

5tìmulaticn <strong>of</strong> these sit€s i-ncuc€d an inhi_bi_ti.n <strong>of</strong> the<br />

unft activítÏ yhos€ dìtratío¡ is ciosel-y assoc.iât€al n j.tÌ¡<br />

th€ cns€t Õf EEG spindles, gith a corlconita¡t e¡(tracellu-<br />

lar positiy€ slo*r uave¡ fle inhit¡ition sas abolishetl<br />

chen aifere¡t , j.nputs rer€ paired $ith the inhitlitory<br />

stimulus.<br />

Staüe a¡d Rcs€¡ {1959} studiêil t.hê r€}atiðû betïèen<br />

electrical stinuIâticn and stêaily potê¡tial sh j_fts in<br />

pref[ontal cortex in four sonk€]ls {iurj.ng delay€al resFonse<br />

per<strong>for</strong>ûance. Eipolär st'1ûul-ation consisting <strong>of</strong> Z s€c.<br />

trains <strong>of</strong> 1 nsâc. pül-ses at the rate <strong>of</strong> 50 puls€s,/sec.<br />

ryas deliver€d ta tbe prj-aciça.l- su1c1¡s contralateral to<br />

the rêsponau-lg hand. Ccrr€ct Eesponsê fcr each S Ías<br />

disrupted if the stiorlêtLc¡ t¡aia ¡ras prêse¡teil duri.ag<br />

the fiEst seccnal <strong>of</strong> d€lay. Thë r€cordiûg shoseà that the<br />

eaqnítl¡d€ <strong>of</strong> negative steady potêntíal- shift froú pre-<br />

frÕn¿ål cortêx *as r€Lated tr the rates <strong>of</strong> correct and<br />

irccrrsct respc¡s€, the highêr nag¡itude ïas r€l_atêil to<br />

higher corr€ct r€sFc!ìse rat€.s, suggesting that thê shifts<br />

reflected th€ state <strong>of</strong> €xcitation <strong>of</strong> thË ünü€rlying<br />

neutal eLen€ t. Th€y coûcludêd that th€ cortical_ segme¡t<br />

<strong>of</strong> pricj-pal su.lcus in contralatera]. henisphêre Has cr¡l-<br />

cialty inplicat€d in the DR task c¡l.y during/ the tìrief<br />

period befcre and after th€ begianì-ng <strong>of</strong> ùhê ¿elêy<br />

interval.<br />

¿ð

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!