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PDF (PhD Thesis Susan Chipchase) - Nottingham eTheses ...

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een found with emotional events. Emotion has been shown to enhance<br />

memory for the gist of an event at the expense of memory for details of the<br />

event (Adolphs, Tranel, & Buchanan, 2005; though cf. Kensinger et al., 2006).<br />

The experimental findings of studies which failed to find an emotional<br />

enhancement of memory may be explained by considering how the task<br />

affected processing style at retrieval. In a task where participants were asked to<br />

recall targeted perceptual aspects of experimental stimuli (i.e. in which half of<br />

an experimental list stimulus pictures were presented) the recall of emotional<br />

stimuli was worse than of neutral stimuli (Aupee, 2007). This may be because<br />

the task induced participants to use an analytic processing style at retrieval and<br />

may suggest that in some cases analytic processing may not just block any<br />

emotional enhancements of memory but actually reverse them.<br />

This study tests the hypothesis that different strategies in the retrieval of<br />

emotional stimuli contribute to the emotional enhancement of memory. If<br />

people spontaneously use a nonanalytic processing strategy when attempting to<br />

recognise emotional material then we would expect to see an advantage for<br />

emotional material, over neutral, in traditional recognition tasks. However, we<br />

would expect any emotional enhancement effects to disappear in an analytic<br />

processing strategy task as this would prevent participants from using the<br />

successful strategy that we propose normally gives an advantage with<br />

emotional material. There is one additional issue of retrieval style in<br />

recognition tests that we wish to explore. In some recent research participants<br />

were asked to perform a recognition task and then subsequently make a<br />

Remember / Know / Guess (RKG) judgement (e.g. Dahl, Johansson, &<br />

Allwood, 2006; Dewhurst & Parry, 2000; Dougal & Rotello, 2007). It is<br />

47

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