August 2010
Volume 10, Issue 7
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2010
Disguising Losses as Wins in Multi-line Video Slot Machines
Author Affiliations
  • Mike Dixon
    Department of Psychology, University of Waterloo
  • Kevin Harrigan
    Canadian Centre for Arts and Technology, University of Waterloo
Journal of Vision August 2010, Vol.10, 257. doi:10.1167/10.7.257
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      Mike Dixon, Kevin Harrigan; Disguising Losses as Wins in Multi-line Video Slot Machines. Journal of Vision 2010;10(7):257. doi: 10.1167/10.7.257.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

In contrast to traditional mechanical reel slot machines, on video slot machines one can wager on 15 lines or more per spin. When a player spins and wins feedback is provided by attention-grabbing, salient visual information. Certain symbols flash, counters tally the amount won, and the symbols accounting for the win are highlighted. When players spin and lose no feedback is given. When players wager on multiple lines, however, many of their “wins” are actually less than the spin wager. We refer to these outcomes as “losses disguised as wins” or LDWs. To assess the physiological consequences of wins, LDWs and losses we had players play a real multi-line slot machine. We used heart-rate deceleration to gauge the perceptual intake of the visual information following wins, LDWs, and losses and used skin conductance responses (SCRs) to measure player's arousal for these outcomes. For 39 players, average heart-rate decelerations were significantly greater following wins than either LDWs or losses. We interpret these deceleration effects in terms of perceptual intake of the presented reinforcers – there are simply more flashing, highlighted symbols following real wins than LDWs or losses. For arousal, the average SCRs of 37 players were equivalent for wins and LDWs – with both values being significantly larger than for losses. That is despite losing money on LDWs, participants' somatic reactions to LDWs were the same as when they won. Since arousal is arguably the most significant reinforcer in slot machine play, the finding that LDWs and real wins are equally arousing suggests that playing multiple lines on slot machines may heighten arousal and possibly increase the risk of developing gambling problems.

Dixon, M. Harrigan, K. (2010). Disguising Losses as Wins in Multi-line Video Slot Machines [Abstract]. Journal of Vision, 10(7):257, 257a, http://www.journalofvision.org/content/10/7/257, doi:10.1167/10.7.257. [CrossRef]
Footnotes
 Natural Sciences and Engineering Research Council.
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