2019
DOI: 10.1016/j.psyneuen.2018.11.024
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Inflammation and dimensions of reward processing following exposure to the influenza vaccine

Abstract: Background: Alterations in reward processing are a central feature of depression and may be influenced by inflammation. Indeed, inflammation is associated with deficits in reward-related processes in animal models and with dysregulation in reward-related neural circuitry in humans. However, the downstream behavioral manifestations of such impairments are rarely examined in humans. Methods: The influenza vaccination was used to elicit a mild inflammatory response in 41 healthy young adults (age range: 18-22, 30… Show more

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Cited by 33 publications
(32 citation statements)
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References 67 publications
(102 reference statements)
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“…Three studies have used the EEfRT and all found a different pattern. The current study found stress-induced inflammation increased motivation for low probability trials, endotoxin has been shown to increase motivation for high probability trials (Lasselin et al, 2016) and influenza vaccination was associated with a global decrease in motivation regardless of probability (Boyle et al, 2018). Using an 'effortstake task' that does not alter probability, Draper and colleagues (2018) found a reduction in motivation following endotoxin in a sample of healthy men.…”
Section: Discussionmentioning
confidence: 53%
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“…Three studies have used the EEfRT and all found a different pattern. The current study found stress-induced inflammation increased motivation for low probability trials, endotoxin has been shown to increase motivation for high probability trials (Lasselin et al, 2016) and influenza vaccination was associated with a global decrease in motivation regardless of probability (Boyle et al, 2018). Using an 'effortstake task' that does not alter probability, Draper and colleagues (2018) found a reduction in motivation following endotoxin in a sample of healthy men.…”
Section: Discussionmentioning
confidence: 53%
“…Given this background, enhanced reward responsiveness and motivation in association with the stress-induced inflammatory response was unexpected. The rapidly expanding literature on inflammation and reward suggests a complicated relationship that may vary as a function of reward dimension (e.g., motivation vs. sensitivity; Draper et al, 2018;Lasselin et al, 2016;Dantzer et al, 2014), reward type (e.g., monetary vs social; Inagaki et al, 2015), level of analysis (e.g., neuroimaging vs. behavior; 26), and the magnitude of the inflammatory response (e.g., endotoxin vs. vaccination; Lasselin et al, 2016;Boyle et al, 2018). In addition, effects of stress and inflammation on reward in human models have previously been examined in isolation, but stress-induced inflammation involves a different psychological and physiological experience.…”
Section: Discussionmentioning
confidence: 99%
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