The Psychological Record

, Volume 42, Issue 2, pp 273–284 | Cite as

Quantitative Analysis of IRT Variability During the First Training Stages of a Variable-Interval Schedule in Rats

  • C. Gómez
  • A. Ruiz-Adán
  • M. Llosa
  • G. Ruiz
Article

Abstract

Five rats were reinforced under variable-interval schedules with different average interreinforcement intervals (30 seC., 1 min, 2 min, and 4 min). Each animal was run only two sessions of each schedule. The interresponse times (IRTs) were recorded and analyzed. The autocorrelation function of the IRT series and of the IRT time series (number of responses per time interval) were calculated, and absence of periodicity in the subject’s behavior was demonstrated. Frequency distribution of IRTs showed in all cases a similar shape and could be fitted to a gamma probability density function in 60% of cases with a signification level of .01 (Kolmogorov-Smirnoff test). The frequency distributions of the IRT time series were distributed as a Poisson process with a .05 significance level. These results suggest that during variable-interval schedules the responses of the animal can be modeled as a random process characterized by a gamma distribution, as a first approximation.

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References

  1. BARTLETT, M. S. (1946). On the theoretical specification of sampling properties of autocorrelated time-series. Journal of the Royal Statistical Society, B8, 27–41.Google Scholar
  2. BLOUGH, P. M., & BLOUGH, A. J. (1968). The distribution of interresponse times in the pigeon during variable interval reinforcement. Journal of the Experimental Analysis of behavior, 11, 23–27.CrossRefPubMedPubMedCentralGoogle Scholar
  3. CATANIA, A., & REYNOLDS, G. S. (1968). A quantitative analysis of the responding maintained by interval schedules of reinforcement. Journal of the Experimental Analysis of behavior, 11, 327–383.CrossRefPubMedCentralGoogle Scholar
  4. DENEUBOURG, J. L., ARON, S., GOSS, S., PASTEELS, J. M., & DUERINCK, G. (1986). Random behavior, amplification processes and number of participants: How they contribute to the foraging properties of ants. Physica, 22D, 176–186.Google Scholar
  5. FERSTER, C. B., & SKINNER, B. F. (1957). Schedules of reinforcement. New York: Appleton-Century-Crofts.CrossRefGoogle Scholar
  6. GALBICKA, G., & BRANCH, M. N. (1981). Selective punishment of interresponse times. Journal of the Experimental Analysis of behavior, 35, 311–322.CrossRefPubMedPubMedCentralGoogle Scholar
  7. GÓMEZ, C. (1992). A competition model of Irt distributions during the first training stages of variable interval schedule. The Psychological Record, 42, 285–293.Google Scholar
  8. GÓMEZ, C., CANALS, J., TORRES, B., & DELGADO-GARCIA, J. M. (1986). Analysis of the fluctuations in the interspike intervals of abducens nucleus neurons during ocular fixations in the alert cat. Brain Research, 381, 401–404.CrossRefGoogle Scholar
  9. GÓMEZ, C., QUERO, J. M., ESCUDERO, M. (1989). Computer simulation of the neural signal carried by the abducens nerve during eye fixation in the cat. International Journal of Biomedical Computing, 24, 207–215.CrossRefPubMedGoogle Scholar
  10. GOTTMAN, J. M., (1981). Time-series analysis. A comprehensive introduction for social scientists. London: Cambridge University Press.Google Scholar
  11. HANSON, S. J., & KILLEEN, P. R. (1981). Measurement and modeling of behavior under fixed-interval schedules of reinforcement. Journal of Experimental Psychology: Animal Behavior Processes, 7, 129–139.Google Scholar
  12. JOHNSON, N. I., & KOTZ, S. (1970). Continuous univariate distributions-1. Boston: Houghton Mifflin Company.Google Scholar
  13. KILLEEN, P. R., & FETTERMAN, J. G. (1988). A behavioral theory of timing. Psychological Review, 95, 274–295.CrossRefGoogle Scholar
  14. KINTSCH, W. (1965). Frequency distribution of interresponse times during VI and VR reinforcement. Journal of the Experimental Analysis of behavior, 8, 347–352.CrossRefPubMedPubMedCentralGoogle Scholar
  15. LASZLO, L. (1972). The system view of the world. New York: Braziller.Google Scholar
  16. MORSE, W. (1966). Intermittent reinforcement. In W. K. Honig (Ed.), Operant behavior: Areas of research and application. New York: Appleton-Century-Crofts.Google Scholar
  17. NEVIN, J. A., & BAUM, W. M. (1980). Feedback functions for variable-interval reinforcement. Journal of the Experimental Analysis of behavior, 34, 207–217.CrossRefPubMedPubMedCentralGoogle Scholar
  18. PEELE, D. B., CASEY, J., & SILBERBERG, A. (1984). Primacy of interresponse-time reinforcement in accounting for rate differences under variable-ratio and variable-interval schedules. Journal of Experimental Psychology: Animal Behavior Processes, 10, 149–167.Google Scholar
  19. SOBOL, I. M. (1976). Metodo de Montecarlo. Moscow: Mir.Google Scholar
  20. SOKAL, R. R., & ROHLF, F. S. (1981). Biometry. New York: W. H. Freeman.Google Scholar
  21. STADDON, J. E. R., & SIMMELHAG, B. (1971). The superstition experiment: A reexamination of its implications for the principles of adaptative behavior. Psychological Review, 78, 3–43.CrossRefGoogle Scholar
  22. STADDON, J. E. R., & MOTHERAL, S. (1978). On matching and maximizing in operant choice experiments. Psychological Review, 85, 436–444.CrossRefGoogle Scholar
  23. WEARDEN, J. H., & CLARK, R. B. (1988). Interresponse-time reinforcement and behavior under aperiodic reinforcement schedules: A case study using computer modeling. Journal of Experimental Psychology: Animal behavior Processes, 14, 200–211.Google Scholar
  24. WING, A. M., & KRISTOFFERSON, A. B. (1973). The timing of interresponse intervals. Perception and Psychophysics, 13, 455–460.CrossRefGoogle Scholar
  25. ZEILER, M. D. (1977). Schedules of reinforcement: The controlling variables. In W. K. Honig & J. E. R. Staddon (Eds.), Handbook of operant behavior. Englewood Cliffs, NJ: Prentice Hall.Google Scholar

Copyright information

© Association of Behavior Analysis International 1992

Authors and Affiliations

  • C. Gómez
    • 1
    • 2
  • A. Ruiz-Adán
    • 1
  • M. Llosa
    • 1
  • G. Ruiz
    • 1
  1. 1.Universidad de SevillaSevillaSpain
  2. 2.Laboratorio de PsicobiologiaFacultad de Filosofia y C. E.SevillaSpain

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