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

D€adryl-€r a d ¡iyexs { 19?0 I st died the effects of
interp.låi-€d septal and casdate stinulation ûn ÐRI, per-
formarce i¡ al-þinô xats ( 197A1 , lrith a vies tÕ tleternine
th€ pcilt xithi¡ tàe ¿lelay íît€rvãl ch€re stiDu.lation of
eithër structu.re naxåna]1y istlilêncês DRf perfordanc€,
The experímênt ccnsisted of six daily sessioãs to ¿ach of
three i terpclat€d sti¡rulatic¡ coniliti-o¡s. thê thxèe
interresponse tj.më cl-asses s€r€ : the earJ-y {0 - 4.3
sec.) thê !Ìiddle {4,4 - 8"7 sec. } and th€ lat€ {11.0 -
15.4 s€c") intêrresporse titse. DaiJ-y sessions consisted
of foûr count€r.bal-ancêd blccks rf 18 reinforcêne¡ts. The
sÈj-û¿latiag parame+,ers lder€ 60 1r/2 ns ,/sêc of 20 - 100
Dj-crcanFs for thè septal 5s aÐd 3"C 1/2 ¡ìs/sec at ?û0
ûicf,oanps fcE the caudate Ss. flhi1€ the substaBt iaL
clifference iI¡ stj.nìl1ation íntÊnsiÈies cloud thè inÈ€rprê-
tation of the Eesults, the r€sults are in part consistart
rith cthêr stüaliês { Bucbsa.ld Ët al ,L964 i Büser et al_ ,
1961¡ ) "
Speciïical-1y, f,csuLts shoyed that. sith septal
stinulaticn f aci.Ij,tation of r€spoflse inhibìtion in the
tearl:rt and rlatet tine class€s of thê DHL delay intêrval
did not eühance overall Ð81 p€rfornarìc€. ¡¡either äid it
significantLy disrBpt normal- tinilg behaviouf, inalicating
that such stinüLatic¡ did nct act as a re1'ersible lêsi.o!.
i ith cauilate aninals, cn the oth€r haad, t.hêx€ r¡as a
sig$if j.cant. reducti-o¡ i-n responsiven€ss during all th:ee
interrèsf:onsË t j-ne intervå1s. B€sides, th€ .!ìialdl_et and
rl-atet int€Epclati-oû ccn¿iticrs effectecl a significaat
increase in responses during interrgsp6¡se tines i¡tqedi-