1 Department of Sociology & Anthropology, Concordia University, Montreal, QC, Canada.
2 Department of Psychology, The University of British Columbia, Vancouver, BC, Canada.
3 Djavad Mowafaghian Centre for Brain Health, The University of British Columbia, Vancouver, BC, Canada.

The post-reinforcement pause (PRP) is an operant effect in which response latencies increase on trials following the receipt and consumption of reward. Human studies demonstrate analogous effects in electronic gambling machines that utilise random ratio reinforcement schedules. We sought to identify moderators of the human PRP effect, hypothesising that the magnitude of gamblers' PRPs is moderated by the type of reinforcing outcome (genuine wins vs. losses-disguised-as-wins [LDWs] vs. free-spin...