ArticleLearning & behavior2017
Characteristics of retrograde amnesia for CS preexposure.
Article in Learning & behavior, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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2 authors at 1 institution in 1 country.
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Abstract
Two experiments using rats evaluated the susceptibility of CS preexposure to retrograde amnesia induced by the protein synthesis inhibitor cycloheximide and tested whether amnesia for CS preexposure shares similar characteristics with amnesia for other memories. In Experiment 1, rats received cycloheximide either immediately, 60 minutes, or 120 minutes after preexposure. Following preexposure, rats received fear conditioning. When later tested, the subjects that received the amnestic treatment shortly after preexposure showed no CS preexposure effect (i.e., no reduction of fear). The amnesia for CS preexposure was attenuated with longer post-preexposure delays, showing a temporal gradient. In Experiment 2, following the replication of amnesia for CS preexposure, the amnestic treatment was readministered to the rats prior to testing. It was demonstrated that the amnestic-preexposure memory could be recovered (i.e., readministration of the drug alleviated the amnesia for CS preexposure). These two experiments show that memories for CS preexposure are susceptible to retrograde amnesia and share similar characteristics with memories for original acquisition and extinction. The results are explained using a retrieval hypothesis of retrograde amnesia.
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