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2015 ; 6
(ä): 983
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On the relationship between emotional state and abnormal unfairness sensitivity
in alcohol dependence
#MMPMID26217293
Brevers D
; Noël X
; Hanak C
; Verbanck P
; Kornreich C
Front Psychol
2015[]; 6
(ä): 983
PMID26217293
show ga
Recent empirical findings suggest that alcohol dependence is characterized by
heightened sensitivity to unfairness during social transactions. The present
study went a step further and aimed to ascertain whether this abnormal level of
sensitivity to unfairness is underlined by an increased emotional reactivity.
Twenty-six recently abstinent alcohol-dependent (AD) individuals and 32 controls
performed an ultimatum game (UG), in which participants had to respond to
take-it-or-leave-it offers, ranging from fair to unfair and made by a fictive
proposer. Emotional state was recorded during UG offers presentation and was
indexed by the amplitude of skin conductance response (SCR). Results showed that
AD decided to reject unfair offers more frequently than their controls,
confirming previous data. The proportion of rejected unfair UG offers was
correlated with SCR, in the AD but not in the control group. This finding
suggests that deciding to accept or reject unfair UG offers is influenced by
arousal-affective activity in AD, but not in controls. Heightened emotional
reactivity may have driven AD to punish the proposer rather than acting as a
rational economic agent. An implication of present findings is that AD might have
difficult to cope with unfair situations triggered by social interactions. Future
studies are needed in order to examine whether-emotional and
behavioral-reactivity to unfairness during the UG could impact alcohol
consumption and relapse in AD.