It is thought that trial incentives may lead to patient fraud [ 36] leading to lower HIV risk in the cohort.
In a cluster-randomized trial, incentives and feedback linked to EHR-based diabetes clinical decision support modestly improved glucose and blood pressure control, but effects waned after incentives and feedback were removed, even though the clinical decision support continued (23).
Results revealed greater striatal activation with increased age in high- compared to low-incentive contexts (incentive magnitude), for gain as well as for loss trials (incentive valence).
We next examined event-related increases related to the trial-by-trial incentive manipulation.
These regions replicate well the regions identified to show monetary incentive-related sustained activity in our prior work [8], even though that study involved a different task, no trial-by-trial incentive manipulation, and no comparison to Liquid incentives.
By including only nonincentive trials in this analysis, one can examine the block-based effect without the contribution of trial-by-trial incentive effects.
On incentive trials, incentives were delivered only when performance was accurate, and reaction times were faster than a cutoff value.
Five studies[ 23, 25, 26, 32, 40, 45] trialled incentives with all study participants, i.e. incentives were included in the first data collection attempt.
In one trial, the incentive, given as a hot daily meal, was not well received by the population due to the inconvenience of attending the clinic at midday.
In one trial, the incentive, given as a daily hot meal, was not well received by the population due to the inconvenience of attending the clinic at midday, whilst in the other trial, nurses distributing the vouchers chose to "ration" their distribution among eligible patients, giving only to those whom they felt were most deprived.
