PT  - JOURNAL ARTICLE
AU  - Brett A. Hathaway
AU  - Dexter R. Kim
AU  - Salwa B. A. Malhas
AU  - Kelly M. Hrelja
AU  - Lauren Kerker
AU  - Tristan J. Hynes
AU  - Cailean B. W. Harris
AU  - Angela J. Langdon
AU  - Catharine A. Winstanley
TI  - Audiovisual cues must be predictable and win-paired to drive risky choice
AID  - 10.1101/2022.09.20.507379
DP  - 2022 Jan 01
TA  - bioRxiv
PG  - 2022.09.20.507379
4099  - http://biorxiv.org/content/early/2022/09/22/2022.09.20.507379.short
4100  - http://biorxiv.org/content/early/2022/09/22/2022.09.20.507379.full
AB  - Risky or maladaptive decision making is thought to be central to the etiology of both drug and gambling addiction. Win-concurrent cues can enhance disadvantageous, risky choice in both rats and humans, yet it is unclear which aspects of the cue-reward contingencies drive this effect. Here, we implemented six variants of the rat Gambling Task (rGT), in which animals can maximise their sugar pellet profits by avoiding options paired with higher per-trial gains but disproportionately longer and more frequent time-out penalties. When audiovisual cues were delivered concurrently with wins, and scaled in salience with reward size, significantly more rats preferred the risky options as compared to the uncued rGT. Similar results were observed when the relationship between reward size and cue complexity was inverted, and when cues were delivered concurrently with all outcomes. Conversely, risky choice did not increase when cues occurred randomly on 50% of trials, and decision making actually improved when cues were coincident with losses alone. As such, cues do not increase risky choice by simply elevating arousal, or amplifying the difference between wins and losses. It is instead important that the cues are reliably associated with wins; presenting the cues on losing outcomes as well as wins does not diminish their ability to drive risky choice. Computational analyses indicate that win-paired cues reduced the impact of losses on decision making. These results may help us understand how sensory stimulation can increase the addictive nature of gambling and gaming products.Competing Interest StatementIn the past three years, C.A.W. has acted as an expert witness for Hogan Lovells LLP and received due compensation.