Feedback-related potentials in a gambling task with randomised reward. Mushtaq, F., Guillen, P., P., Wilkie, R., M., Mon-Williams, M., A., & Schaefer, A. Data in Brief, 2016.
Feedback-related potentials in a gambling task with randomised reward [pdf]Paper  abstract   bibtex   
Event-related potentials (ERPs) time-locked to decision outcomes are reported. Participants engaged in a gambling task (see [1] for details) in which they decided between a risky and a safe option (presented as different coloured shapes) on each trial (416 in total). Each decision was associated with (fully randomised) feedback about the reward outcome (Win/Loss) and its magnitude (varying as a function of decision response; 5-9 points for Risky decisions and 1-4 points for Safe decisions). Here, we show data demonstrating: (a) the influence of Win feedback in the preceding outcome (Outcomet-1) on activity related to the current outcome (Outcomet); (b) difference wave analysis for outcome expectancy- separating Expected Outcomes (consecutive Loss trials subtracted from consecutive reward) from Unexpected Outcomes (subtracting Losst-1Wint trials from Wint-1Losst trials); (c) difference waves separating Switch and Stay responses for Outcome Expectancy; (d) the effect of magnitude induced by decisions (Riskt vs. Safet) on Outcome Expectancy; and finally, (e) expectations reflected by response switch direction (Risk to Safe responses vs. Safe to Riskt) on the FRN at Outcomet.
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 title = {Feedback-related potentials in a gambling task with randomised reward},
 type = {article},
 year = {2016},
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 keywords = {Decision-making,Event-related potentials,Feedback-related,Negativity,Reward prediction error,Reward processing},
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 created = {2016-10-17T14:38:52.000Z},
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 abstract = {Event-related potentials (ERPs) time-locked to decision outcomes are reported. Participants engaged in a gambling task (see [1] for details) in which they decided between a risky and a safe option (presented as different coloured shapes) on each trial (416 in total). Each decision was associated with (fully randomised) feedback about the reward outcome (Win/Loss) and its magnitude (varying as a function of decision response; 5-9 points for Risky decisions and 1-4 points for Safe decisions). Here, we show data demonstrating: (a) the influence of Win feedback in the preceding outcome (Outcomet-1) on activity related to the current outcome (Outcomet); (b) difference wave analysis for outcome expectancy- separating Expected Outcomes (consecutive Loss trials subtracted from consecutive reward) from Unexpected Outcomes (subtracting Losst-1Wint trials from Wint-1Losst trials); (c) difference waves separating Switch and Stay responses for Outcome Expectancy; (d) the effect of magnitude induced by decisions (Riskt vs. Safet) on Outcome Expectancy; and finally, (e) expectations reflected by response switch direction (Risk to Safe responses vs. Safe to Riskt) on the FRN at Outcomet.},
 bibtype = {article},
 author = {Mushtaq, Faisal and Guillen, Pablo Puente and Wilkie, Richard M. and Mon-Williams, Mark A. and Schaefer, Alexandre},
 journal = {Data in Brief}
}
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