The effects of scopolamine and cues to forget on pigeons' memory for time

Santi, Angelo; Bridson, Steve

doi:10.1016/0091-3057(91)90056-8

Cited by 6 publications

(1 citation statement)

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“…In that study, pigeons were initially trained to respond to a red comparison if the sample had been either red or a vertical line and to respond to a green comparison if the sample had been been referred to as the directed-forgetting effect, has been reported under a wide variety of conditions. Although the baseline memory task has typically involved hue samples (projected onto the response keys) and matching hue comparison stimuli, samples of food (associated with reinforced responding to one hue comparison) and no food (associated with reinforced responding to the other hue comparison) have also been used (Grant, 1988, Experiments 2 & 3;Maki & Hegvik, 1980;Maki et al, 1981;, as well as samples that differ only in duration of presentation (i.e., if the sample is of short duration, one comparison is correct, if it is of long duration, the other comparison is correct; Parker & Glover, 1987;Santi & Bridson, 1991; Experiment 2; Santi & Mielke, 1991). In experiments with monkeys, photographs of objects have also served as samples and comparisons (Roberts et al, 1984).…”

Section: Directed Forgetting In Animalsmentioning

confidence: 99%

Directed forgetting in animals.

Roper

Zentall²

1993

Psychological Bulletin

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Directed-forgetting research with animals suggests that animals show disrupted test performance only under certain conditions. Important variables are (a) whether during training, the cue to forget (F cue) signals nonreward (i.e., that the trial is over) versus reward (i.e., that reinforcement can be obtained) and (b) given that reinforcement can be obtained on F-cue trials, whether the post-F-cue response pattern is compatible with the baseline memory task. It is proposed that some findings of directed forgetting can be attributed to trained response biases, whereas others may be attributable perhaps to frustration-produced interference. It is suggested that directed forgetting in animals should be studied using procedures similar to those used to study directed forgetting in humans. This can be accomplished by presenting, within a trial, both to-be-remembered and to-be-forgotten material.

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