The lever pressing of four food deprived male albino rats was maintained by a modified free-operant shock-avoidance procedure. Periodically a clicking sound (CS) was presented. Towards the end of the CS, 10 sucrose pellets (US) were delivered provided S did not press in a given period immediately preceding food delivery. Three independent variables were studied: level of deprivation, kind of avoidance schedule and length of the no-response period preceding pellet delivery. Response facilitation during the CS was found at certain combinations of the independent variables.
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References
1.
EstesW. K.SkinnerB. F.Some quantitative properties of anxiety. J. exp. Psychol., 1941, 29, 390–400.
2.
HoffmanH. S.FleshlerM.A relay sequencing device for scrambling grid shock. J. exp. Anal. Behav., 1962, 5, 329–330.
3.
KaminJ. J.Temporal and intensity characteristics of the conditioned stimulus. In ProkasyW. F. (Ed.), Classical conditioning: a symposium. New York: Appleton-Century-Crofts, 1965. Pp. 118–147.
4.
KaminL. J.BrimerC. J.The effects of intensity of conditioned and unconditioned stimuli on a conditioned emotional response. Canad. J. Psychol., 1963, 17, 194–200.
5.
KimbleG. A.Hilgard and Marquis' Conditioning and learning. New York: Appleton-Century-Crofts, 1961.
6.
LyonD. O.Some notes on conditioned suppression and reinforcement schedules. J. exp. Anal. Behav., 1964, 7, 289–291.
7.
MillensonJ. R.HendryD. P.Quantification of response suppression in conditioned anxiety training. Canad. J. Psychol., 1967, 21, 242–252.
8.
MowrerO. H.Learning theory and behavior. New York: Wiley, 1960.
9.
RescorlaR. A.Pavlovian conditioning and its proper control procedures. Psychol. Rev., 1967, 74, 71–80.
10.
RescorlaR. A.SolomonR. L.Two-process learning theory: relationships between Pavlovian conditioning and instrumental learning. Psychol. Rev., 1967, 74, 151–182.
11.
SheffieldF. D.New evidence on the drive-induction theory of reinforcement. In HaberR. N. (Ed.), Current research in motivation. New York: Holt, Rinehart & Winston, 1966. Pp. 111–122.
