Abstract
Pigeons were trained to discriminate short (2 sec) and long (8 sec) empty intervals that began each trial. In group consistent, onset of an empty interval was marked by a brief presentation of red keylight, and termination of the interval was marked by a brief presentation of green keylight. In group inconsistent, red and green served equally often as the first and second markers across trials. Testing revealed that, in group consistent, (1) birds were sensitive to the relation between marker color and marker type and (2) presentation of the second marker did not initiate timing a new interval. Testing also revealed a robust choose-long effect at delays longer than the training delay and indifference between the comparisons on no-sample trials. Both of the latter findings differ from those typically obtained when filled intervals are employed. It was concluded that pigeons process filled and empty intervals differently.
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Fetterman, J. G., &MacEwen, D. (1989). Short-term memory for responses: The “choose-small” effect.Journal of the Experimental Analysis of Behavior,52, 311–324.
Gaitan, S. C., &Wixted, J. T. (2000). The role of “nothing” in memory for event duration in pigeons.Animal Learning & Behavior,28, 147–161.
Grant, D. S. (1993). Coding processes in pigeons. In T. R. Zentall (Ed.),Animal cognition: A tribute to Donald A. Riley (pp. 193–216). Hillsdale, NJ: Erlbaum.
Grant, D. S., &Kelly, R. (1996). The role of minimum wait time and sample discriminability in the coding of event duration in pigeons.Learning & Motivation,27, 243–259.
Grant, D. S., &Kelly, R. (1998). The effect of variable-delay training on coding of event duration in pigeons.Learning & Motivation,29, 49–67.
Grant, D. S., &Spetch, M. L. (1991). Pigeons’ memory for event duration: Differences between choice and successive matching tasks.Learning & Motivation,22, 180–199.
Grant, D. S., &Spetch, M. L. (1993). Analogical and nonanalogical coding of samples differing in duration in a choice-matching task in pigeons.Journal of Experimental Psychology: Animal Behavior Processes,19, 15–25.
Grant, D. S., &Spetch, M. L. (1994). The role of asymmetrical coding of duration samples in producing the choose-short effect in pigeons.Learning & Motivation,25, 413–430.
Grant, D. S., Spetch, M. L., &Kelly, R. (1997). Pigeons’ coding of event duration in delayed matching-to-sample. In C. M. Bradshaw & E. Szabadi (Eds.),Time and behaviour: Psychological and neurobehavioural analyses (pp. 217–264). Amsterdam: Elsevier.
Kraemer, P. J., Mazmanian, D. S., &Roberts, W. A. (1985). The choose-short effect in pigeon memory for stimulus duration: Subjective shortening versus coding models.Animal Learning & Behavior,13, 349–354.
Roberts, W. A., Macuda, T., &Brodbeck, D. R. (1995). Memory for number of light flashes in the pigeon.Animal Learning & Behavior,23, 182–188.
Santi, A., Bridson, S., &Ducharme, M. J. (1993). Memory codes for temporal and nontemporal samples in many-to-one matching by pigeons.Animal Learning & Behavior,21, 120–130.
Santi, A., Ross, L., Coppa, R., &Coyle, J. (1999). Pigeons’ memory for empty time intervals marked by visual or auditory stimuli.Animal Learning & Behavior,27, 190–205.
Spetch, M. L. (1987). Systematic errors in pigeons’ memory for event duration: Interaction between training and test delay.Animal Learning & Behavior,15, 1–5.
Spetch, M. L., Grant, D. S., &Kelly, R. (1996). Procedural determinants of coding processes in pigeons’ memory for duration.Learning & Motivation,27, 179–199.
Spetch, M. L., &Rusak, B. (1992a). Temporal context effects in pigeons’ memory for event duration.Learning & Motivation,23, 117–144.
Spetch, M. L., &Rusak, B. (1992b). “Time present and time past.” In W. K. Honig & J. G. Fetterman (Eds.),Cognitive aspects of stimulus control (pp. 47–67). Hillsdale, NJ: Erlbaum.
Spetch, M. L., &Wilkie, D. M. (1982). A systematic bias in pigeons’ memory for food and light durations.Behavior Analysis Letters,2, 267–274.
Spetch, M. L., &Wilkie, D. M. (1983). Subjective shortening: A model of pigeons’ memory for event duration.Journal of Experimental Psychology: Animal Behavior Processes,9, 14–30.
Wilkie, D. M. (1987). Stimulus intensity affects pigeons’ timing behavior: Implications for an internal clock model.Animal Learning & Behavior,15, 35–39.
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This research was supported by Grant OGP 0443 from the Natural Sciences and Engineering Research Council of Canada.
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Grant, D.S. Memory for empty time intervals in pigeons. Animal Learning & Behavior 29, 293–301 (2001). https://doi.org/10.3758/BF03192896
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DOI: https://doi.org/10.3758/BF03192896