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Biomedical subjects

J K Ackil

Publications and source records attributed to J K Ackil.

2 recordsLinked to original sources

Developmental differences in eyewitness suggestibility and memory for source.

To what extent do children who report suggested information believe they actually remember seeing the suggested details they report? Asking whether children misremember seeing suggested items is in essence a question about children's ability to monitor the source of their memories. The current study reports the results of two experiments designed to assess potential age-related changes in subjects' ability to accurately monitor the source of suggested information either immediately or following a 1-week delay. The results of both experiments revealed that although all subjects claimed to remember seeing suggested items, the magnitude of this effect varied with age such that first-graders made more source confusions than third- and fifth-graders, who in turn made more confusions than college subjects. Our findings suggest that these age differences are not simply a function of more general age-related memory or performance deficits, but instead reflect developmental differences in the tendency to confuse suggested information for actually witnessed events.

Adolescent

Reinstatement of latent inhibition following a reminder treatment in a conditioned taste aversion paradigm.

Reminder treatments have been shown to facilitate the retrieval of a variety of conditioned responses. Whether or not similar results would occur with an experimental paradigm which involves primarily memory for a stimulus, i.e., where no particular response is specified, is unclear. Accordingly, using Sprague-Dawley rats, we employed a latent inhibition paradigm with a long (10 days) retention interval between sucrose (CS) preexposure and sucrose-illness pairing (training). The results demonstrated a loss of latent inhibition following the 10-day retention interval suggesting "forgetting" of the CS preexposure. However, placing a single reminder exposure to the CS within the preexposure-to-training interval reinstated the preexposure effect. Controls indicated that in the absence of the initial preexposure the reminder per se did not produce latent inhibition. Thus, a reminder can reinstate a stimulus attribute (flavor representation) and explicit conditioned responses.

Animals