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Impact of induced anxiety on neural responses to monetary incentives.

ABSTRACT: Previous research demonstrates that aversive stimuli can interrupt appetitive processing and that brain regions involved with the processing of potential rewards, such as the ventral striatum (VS), also respond to threatening information. Potential losses can likewise activate the VS and, thus, the full extent to which threat can impact neural responses during incentive processing remains unclear. Here, unpredictable threat of shock was used to induce anxiety while participants performed the monetary incentive delay (MID) task during functional magnetic resonance imaging (fMRI). During anticipation, anxiety impacted neural responses within the bilateral VS and distributed regions of the occipital cortex. Anxiety enhanced activity within the VS to both gain and loss trials. Furthermore, anxiety enhanced activity to both gain and loss trials within dorsal areas of BA19. However, anxiety only enhanced activity during gain, but not loss trials, within ventral areas of BA19. These results suggest that during anticipation, induced anxiety enhanced VS activity to incentives generally, which might reflect changes in the subjective salience of gains and losses. Collectively, these results suggest that the impact of induced anxiety on responses to monetary incentives depend on the neural region, type of incentive, and stage of processing.

SUBMITTER: Gorka AX

PROVIDER: S-EPMC6234319 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Impact of induced anxiety on neural responses to monetary incentives.

Gorka Adam X AX Fuchs Bari B Grillon Christian C Ernst Monique M

Social cognitive and affective neuroscience 20181101 11

Previous research demonstrates that aversive stimuli can interrupt appetitive processing and that brain regions involved with the processing of potential rewards, such as the ventral striatum (VS), also respond to threatening information. Potential losses can likewise activate the VS and, thus, the full extent to which threat can impact neural responses during incentive processing remains unclear. Here, unpredictable threat of shock was used to induce anxiety while participants performed the mon ...[more]

PMID: 30289497

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Project description:BackgroundGaps in postnatal care use represent missed opportunities to prevent maternal and neonatal death in sub-Saharan Africa. As one in every three non-facility deliveries in Nigeria is assisted by a traditional birth attendant (TBA), and the TBA's advice is often adhered to by their clients, engaging TBAs in advocacy among their clients may increase maternal and neonatal postnatal care use. This study estimates the impact of monetary incentives for maternal referrals by TBAs on early maternal and neonatal postnatal care use (within 48 h of delivery) in Nigeria.MethodsWe conducted a non-blinded, individually-randomized, controlled study of 207 TBAs in Ebonyi State, Nigeria between August and December 2016. TBAs were randomly assigned with a 50-50 probability to receive $2.00 for every maternal client that attended postnatal care within 48 h of delivery (treatment group) or to receive no monetary incentive (control group). We compared the probabilities of maternal and neonatal postnatal care use within 48 h of delivery in treatment and control groups in an intention-to-treat analysis. We also ascertained if the care received by mothers and newborns during these visits followed World Health Organization guidelines.ResultsOverall, 207 TBAs participated in this study: 103 in the treatment group and 104 in the control group. The intervention increased the proportion of maternal clients of TBAs that reported attending postnatal care within 48 h of delivery by 15.4 percentage points [95% confidence interval (CI): 7.9-22.9]. The proportion of neonatal clients of TBAs that reportedly attended postnatal care within 48 h of delivery also increased by 12.6 percentage points [95% CI: 5.9-19.3]. However, providers often did not address the issues that may have led to maternal and newborn postnatal complications during these visits.ConclusionsWe show that motivating TBAs using monetary incentives for maternal postnatal care use can increase skilled care use after delivery among their maternal and neonatal clients, who have a higher risk of mortality because of their exposure to unskilled birth attendance. However, improving the quality of care is key to ensuring maternal and neonatal health gains from postnatal care attendance.Trial registrationThe trial was retrospectively registered in clinicaltrials.gov ( NCT02936869 ) on October 18, 2016.

Dataset Information

Impact of induced anxiety on neural responses to monetary incentives.

Publications

Impact of induced anxiety on neural responses to monetary incentives.

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