| Abstract/Results: | ABSTRACT:
Objectives: The project addressed two fundamental questions. First, whether high scores on
paranormal belief were associated with disrupted true memory and susceptibility to false
memories. Second, whether any ‘observed’ memory effects could be explained by cognitiveperceptual
factors associated with paranormal belief (i.e., schizotypy, transliminality, and
delusional ideation).
Methods: Two established experimental techniques were used: the Deese-Roediger-McDermott
(DRM; Deese, 1959; Roediger & McDermott, 1995) and the misinformation paradigm (e.g., Loftus,
Miller & Burns, 1978).
Results: Phase I (DRM paradigm) found that participants scoring above (vs. below) the median for
belief in the paranormal and delusional ideation produced higher numbers of false memories for
critical lures (associative false memory). Level of paranormal belief and level of cognitiveperceptual
factor had no effect upon true memory (presented items), or other measures of false
memory (non presented list items & non presented critical lures). Overall, paranormal belief and
cognitive-perceptual factor scores were not predictors of mnemonic performance (true & false
memory). In addition to this, neither level of paranormal belief, nor level of cognitive-perceptual
factor had a consistent effect on the quality of memories as measured by the remember-know
procedure.
Phase II (misinformation effect) found that only level of paranormal belief affected mnemonic
performance. Participants in the upper quartile scored higher on true memory and recognised
more misinformation items (false memory) than participants in the lower quartile. The cognitiveperceptual
measures had no effect on memory. Whilst, positive correlations were observed
between signal detection measures of memory (true d', false d', & unrelated information) these
measures failed to correlate with either paranormal belief, or the cognitive-perceptual measures.
Finally, level of paranormal belief and level of cognitive-perceptual factor had no effect on
remember-know responses.
Conclusions: Level of paranormal belief and scores on associated cognitive-perceptual factors
were not found to reliably predict mnemonic performance.
Discussion: Further research is required if the relationship between paranormal belief and
mnemonic performance is to be fully understood.
Publications: Findings are currently being disseminated via conference and are in preparation for
journal submission.
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Reference:
| Dagnall, N., Parker, A., & Munley, G. (2012). The Effect of Paranormal Belief and Cognitive-Perceptual Factors on Mnemonic Performance: An Experimental Investigation. In Aquém e além do cérebro. Behind and beyond the brain. Proceedings of the 9th Symposium of Fundação Bial (p. 54/63). Porto: Fundação Bial.
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