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The effect of lying on memory and metamemory when deception is repeated and volitional.

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... Even though participants predicted their memory performance to be lower for lies than the truth, their actual memory performance showed the opposite pattern, with higher memory performance for fabricated lies than the truth, producing a metacognitive illusion. In a study with lies about simple actions, Dianiska and Meissner (2022) also showed lower memory predictions for lies than the truth. ...
... The current project had three main aims: The first aim was to investigate whether memory predictions were affected by lie fabrication manipulation. Prior work yielded that lying produces lower memory predictions than truth-telling for both episodic (Dianiska & Meissner, 2022) and semantic information (Besken, 2018). We assessed whether this effect was also valid for personal semantic information. ...
... First, participants should take longer to respond deceptively compared to responding truthfully, as also found in previous research (Besken, 2018;Verschuere et al., 2011;Vrij et al., 2008;Walczyk et al., 2003;Williams et al., 2013). Second, participants should produce lower JOLs for lies than in truth trials (Besken, 2018;Dianiska & Meissner, 2022). Regarding the second aim of the current project, we investigated the effects of experience-based processes on JOLs. ...
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Conducted 3 paired-associate learning experiments with a total of 120 male and female undergraduates. Under some conditions, a-b learning was facilitated when ss chose responses to be learned on a subsequent a-b list. Ss who chose their a-b responses and were subsequently forced to learn a competing set of material (a-c) showed a relatively greater disruption of learning than ss who did not have the opportunity to choose either a-b or a-c. All of these effects required that when ss chose their responses, the choosing occurred in the presence of their respective stimuli. Simply choosing responses in the absence of the stimuli produced performance which was not different from that resulting when ss were denied the opportunity to choose their responses. (PsycINFO Database Record (c) 2012 APA, all rights reserved)
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Studies of text comprehension have amply demonstrated that when reading a story, people seek to identify the causal and motivational forces that drive the interactions of characters and link events (e.g., Zwaan, Langston, & Graesser, 1995), thereby achieving explanatory coherence. In the present study we provide the first evidence that the search for explanatory coherence also plays a role in the memory errors that result from suggestive forensic interviews. Using a forced fabrication paradigm (e.g., Chrobak & Zaragoza, 2008), we conducted 3 experiments to test the hypothesis that false memory development is a function of the explanatory role these forced fabrications served (the explanatory role hypothesis). In support of this hypothesis, participants were more likely to subsequently freely report (Experiment 1) and falsely assent to (Experiment 2) their forced fabrications when they helped to provide a causal explanation for a witnessed outcome than when they did not serve this explanatory role. Participants were also less likely to report their forced fabrications when their explanatory strength had been reduced by the presence of an alternative explanation that could explain the same outcome as their fabrication (Experiment 3). These findings extend prior research on narrative and event comprehension processes by showing that the search for explanatory coherence can continue for weeks after the witnessed event is initially perceived, such that causally relevant misinformation from subsequent interviews is, over time, incorporated into memory for the earlier witnessed event. (PsycINFO Database Record (c) 2012 APA, all rights reserved).
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The current research looked at the effects of lying about a false childhood event on the liar's memory for the event. Participants attempted to convince researchers that false events had actually happened to them. In Experiment 1, participants showed a Fabrication Inflation Effect in that they were more likely to increase their beliefs in the lied-about events than control events. Individual differences such as scores on the Dissociative Experience Scale, frequency of lying, and self-reported feelings of discomfort while lying were related to rates of fabrication inflation. In Experiment 2, participants also showed fabrication inflation and were more likely to inflate their likelihood ratings when the lie was created during a separate session from the posttest. Results from both studies support the idea that Source Monitoring failures may cause participants to increase their likelihood ratings of lied-about events. These results suggest that intentional lying may lead some participants to increase their beliefs in their own fabrications. Applications to the legal field are discussed.
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Generation effects (better memory for self-produced items than for provided items) typically occur in item memory. Jurica and Shimamura (1999) reported a negative generation effect in source memory, but their procedure did not test participants on the items they had generated. In Experiment 1, participants answered questions and read statements made by a face on a computer screen. The target word was unscrambled, or letters were filled in. Generation effects were found for target recall and source recognition (which person did which task). Experiment 2 extended these findings to a condition in which the external sources were two different faces. Generation had a positive effect on source memory, supporting an overlap in the underlying mechanisms of item and source memory.
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Fluency - the subjective experience of ease or difficulty associated with completing a mental task - has been shown to be an influential cue in a wide array of judgments. Recently researchers have begun to look at how fluency impacts judgment through more subtle and indirect routes. Fluency impacts whether information is represented in working memory and what aspects of that information are attended to. Additionally, fluency has an impact in strategy selection; depending on how fluent information is, people engage in qualitatively different cognitive operations. This suggests that the role of fluency is more nuanced than previously believed and that understanding fluency could be of critical importance to understanding cognition more generally.
Type of lie differentially influences forgetting and false memory
  • R E Dianiska
  • S M Lane
  • D K Cash
Dianiska, R. E., Lane, S. M., & Cash, D. K. (2016, March). Type of lie differentially influences forgetting and false memory [Conference presentation].
JASP (Version 0.16.2)[Computer software
  • Jasp Team
JASP Team (2022). JASP (Version 0.16.2)[Computer software].