Neurophysiological correlates of the near-miss effect in gambling

Rocha Dores, A., Rocha, A., Paiva, T., Carvalho, I.P., Geraldo, A., Griffiths, M.D. ORCID: 0000-0001-8880-6524 and Barbosa, F., 2020. Neurophysiological correlates of the near-miss effect in gambling. Journal of Gambling Studies, 36, pp. 653-668. ISSN 1050-5350

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The near-miss effect in gambling refers to a losing situation that is (or perceived to be) close to a win by the gambler. This effect is one of the many cognitive distortions that can occur during gambling games.The main objective of the present study was to analyze the electrophysiological correlates of the near-miss effect via an event related potential (ERP)study examining four distinct gambling outcomes: win, full miss, near-miss before the payline, and near-miss after the payline. This study comprised 23 healthy voluntary participants (10 women) with ages ranging between 19 and 34 years (M= 22.5; SD= 3.65). All participants completed the South Oaks Gambling Screen (SOGS) and played a computerized slot machine, programed to induce the near-miss effect and specifically designed for an ERP study. By splitting the near-miss effect in two subtypes (before and after the payline), increased feedback-related negativity (FRN) was found for the near-misses after the payline in comparison to losses and also to near-misses before the payline. Results also indicated an increased P300 amplitude for the near-misses before the payline compared both with losses and with near-misses after the payline. The results suggest that both FRN and P300 present different sensitivities to near-miss subtypes, suggesting a payline effect that is not demonstrated when the data of near-misses before and after the payline are analyzed together. This is the first study to analyze the effect of the near-miss subtype in an ERP study and confirms the findings of previous behavioral studies.

Item Type: Journal article
Publication Title: Journal of Gambling Studies
Creators: Rocha Dores, A., Rocha, A., Paiva, T., Carvalho, I.P., Geraldo, A., Griffiths, M.D. and Barbosa, F.
Publisher: Springer Science and Business Media LLC
Date: June 2020
Volume: 36
ISSN: 1050-5350
Divisions: Schools > School of Social Sciences
Record created by: Jill Tomkinson
Date Added: 23 Mar 2020 15:43
Last Modified: 31 May 2021 15:05

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