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MOST DIRECTED FORGETTING IN PIGEONS CAN BE ATTRIBUTED TO THE ABSENCE OF REINFORCEMENT ON FORGET TRIALS DURING TRAINING OR TO OTHER PROCEDURAL ARTIFACTS
Author(s) -
Zentall Thomas R.,
Roper Karen L.,
Sherburne Lou M.
Publication year - 1995
Publication title -
journal of the experimental analysis of behavior
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 61
eISSN - 1938-3711
pISSN - 0022-5002
DOI - 10.1901/jeab.1995.63-127
Subject(s) - reinforcement , forgetting , motivated forgetting , psychology , matching (statistics) , cognitive psychology , task (project management) , sample (material) , social psychology , statistics , chemistry , mathematics , management , chromatography , economics
In research on directed forgetting in pigeons using delayed matching procedures, remember cues, presented in the delay interval between sample and comparisons, have been followed by comparisons (i.e., a memory test), whereas forget cues have been followed by one of a number of different sample‐independent events. The source of directed forgetting in delayed matching to sample in pigeons was examined in a 2 × 2 design by independently manipulating whether or not forget‐cue trials in training ended with reinforcement and whether or not forget‐cue trials in training included a simultaneous discrimination (involving stimuli other than those used in the matching task). Results were consistent with the hypothesis that reinforced responding following forget cues is sufficient to eliminate performance deficits on forget‐cue probe trials. Only when reinforcement was omitted on forget‐cue trials in training (whether a discrimination was required or not) was there a decrement in accuracy on forget‐cue probe trials. When reinforcement is present, however, the pattern of responding established during and following a forget cue in training may also play a role in the directed forgetting effect. These findings support the view that much of the evidence for directed forgetting using matching procedures may result from motivational and behavioral artifacts rather than the loss of memory.