Sleep duration, vulnerability, memory implantation
Many studies have been examining effects of sleep loss on developing false memory. Yet, its role in ‘lost-in-the-mall' memory implantation has not been discerned. This study will investigate impact of sleep durations on vulnerability to false memory implantation, in university students. Shorter sleep is hypothesized to result in higher confidence and clarity of implanted memory. Participants will be 900 undergraduate students from Monash University. Participants will be students self-report with <6hours sleep/night (short sleepers) or >9hours sleep/night (long sleepers). Participants will complete booklet on four narratives of events (three true and one false) and rate confidence and clarity after second interview.
Short sleepers (<6hours/night) will have greater clarity and confidence ratings on implanted memory than long sleepers (>9hours/night). Shorter sleep impairs reality monitoring in brain frontal region, undermining ability to discriminate real life events and external sources. It was found that sleep quality and quantity have direct effects on recall of implanted memory among individuals.
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[...] & Mendelson, W. B. (2000). Sleep latency and duration estimates among sleep disorder patients: variability as a function of sleep disorder diagnosis, sleep history, and psychological characteristics. Sleep, 71-79. Zhu, B., Chen, C., Loftus, E. F., He, Q., Chen, C., Lei, X., Lin, C. & Dong, Q. (2012). Brief exposure to misinformation can lead to long-term false memories. Applied Cognitive Psychology, 301-307. [...]
[...] This study will investigate impact of sleep durations on vulnerability to false memory implantation, in university students. Shorter sleep is hypothesized to result in higher confidence and clarity of implanted memory. Participants will be 900 undergraduate students from Monash University. Participants will be students self-report with 9hours sleep/night (long sleepers). Participants will complete booklet on four narratives of events (three true and one false) and rate confidence and clarity after second interview. Short sleepers (9hours/night). Shorter sleep impairs reality monitoring in brain frontal region, undermining ability to discriminate real life events and external sources. [...]
[...] & Johnson, M. K. (2009). Source monitoring 15 years later: what have we learned from fMRI about the neural mechanism of source memory? Psychological Bulletin, 135(4), 638-677. Nichols, A. L. & Maner, J. K. (2008). The good-subject effect: investigating participant demand characteristics. The Journal of General Psychology, 135(2), 151-165. Payne, J. D., Schacter, D. L., Propper, R., Huang, L., Wamsley, E., Tucker, M. A., Walker, M. P. & Stickgold, R. (2009). [...]
[...] Vulnerability to false memory implantation will be the dependent variable. This will be a quasi-experimental, between-subject design. Materials Sleep durations will be self-reported by participants in questionnaire. Vulnerability to false memory implantation will be assessed by the clarity and confidence ratings on false memory given by participants at the end of second interview. Clarity is rated on scale from 1=unclear to 10=extremely clear, while confidence is rated from not sure to 5=extremely confident (Loftus & Pickrell, 1995). Procedure Participants will be deceived that the study is investigating childhood events. [...]
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