Memory Variance in the Peak Procedure of Timing in Pigeons

Pigeons were rewarded on a fixed-interval (FI) schedule. On occasional unrewarded tests, they usually showed a break-run-break pattern of responding. Across trials, the start of the run correlated positively with the end, suggesting variance across trials in (a) clock speed, (b) the delay to start the clock, or (c) a single criterion time used on a trial. If variance in criterion time exists, then a task in which the start and the end of the run are based on independent criterion times should produce a reduced start-end correlation. In 2 such tasks, the start-end correlation dropped to near zero, although other correlations were comparable to those found in the standard FI task

[1]  D. Stubbs,et al.  Discriminative properties of briefly presented stimuli. , 1976, Journal of the experimental analysis of behavior.

[2]  S. Roberts,et al.  Isolation of an internal clock. , 1981, Journal of experimental psychology. Animal behavior processes.

[3]  S. Roberts,et al.  Cross-modal use of an internal clock. , 1982, Journal of experimental psychology. Animal behavior processes.

[4]  J R Platt,et al.  Bisection of temporal intervals by pigeons. , 1983, Journal of experimental psychology. Animal behavior processes.

[5]  R. Church,et al.  Two-step acquisition: modification of an internal clock's criterion. , 1984, Journal of experimental psychology. Animal behavior processes.

[6]  R M Church,et al.  Scalar Timing in Memory , 1984, Annals of the New York Academy of Sciences.

[7]  J. Gibbon,et al.  Timing and time perception. , 1984, Annals of the New York Academy of Sciences.

[8]  Implications of the break-run-break pattern in the peak procedure , 1987 .

[9]  Timing multimodal events in pigeons. , 1989, Journal of the experimental analysis of behavior.

[10]  R. Church,et al.  Representation of time , 1990, Cognition.

[11]  K. Cheng,et al.  Three psychophysical principles of timing in pigeons , 1991 .

[12]  K. Cheng,et al.  Analysis of single trials in pigeons' timing performance. , 1993 .

[13]  R. Church,et al.  Application of scalar timing theory to individual trials. , 1994 .