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

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Chapter 4. The influence of emotion on specific visual details of memory<br />

Chapter Introduction<br />

In this chapter we continue to use the Same / Similar / New paradigm<br />

(Kensinger et al., 2006) to explore the influence of emotion on memory for the<br />

specific visual details of stimuli. For the remainder of the thesis we will be<br />

using this paradigm to start to explore the influence of emotion at the time of<br />

encoding new information into memory. By examining the information on<br />

which a memory is based, Kensinger et al. (2006) addressed the controversy in<br />

the literature over whether emotion leads to an increase in memory for details,<br />

or for gist at the expense of memory for details (e.g. Adolphs et al., 2005). In a<br />

series of studies, Kensinger and colleagues investigated the level of detail<br />

contained within memories for emotional stimuli by testing recognition<br />

memory for specific details and gist (Kensinger et al., 2006; Kensinger et al.,<br />

2007a, 2007b).<br />

Whilst the enhancement for negative emotion was found in a series of<br />

studies the effects of positive emotions have not been studied so extensively.<br />

To our knowledge, memory for details of positive stimuli has only been<br />

investigated in a single study which found no enhancement in a younger<br />

college student sample, although a comparison group of older adults did show<br />

an enhancement in general memory of positive stimuli (Kensinger et al.,<br />

2007a). Kensinger et al. (2007a) argued that an enhancement of memory for<br />

details of negative, but not positive, emotional stimuli is consistent with<br />

research showing that positive emotion leads to more gist-based processing,<br />

whereas negative emotion leads to more detailed processing (Bless et al., 1996;<br />

132

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