Article Figures & Data
Figures
- Figure 1.
The sequence of events during a single trial of the gambling game. Participants were presented on each trial with a choice of two colored cards, one of which they selected with a left- or right-hand keypress. After 500 msec, they were shown the outcome associated with the selected card for 1000 msec. After an additional 500 msec, they were shown the alternative outcome (i.e., what they would have won had they made the alternative choice). RT, Response time.
- Figure 2.
Grand-average ERP waveforms from channel FCz as a function of reward magnitude and valence of chosen outcomes. The abscissa shows the time (in milliseconds) relative to the presentation of the outcome stimulus.
- Figure 3.
Scalp topography of orthogonal contrasts between reward magnitude and valence of chosen outcomes 300 msec after presentation of the outcome stimulus. Top, Topography of voltage differences between large and small outcomes separately for trials involving wins and losses. Bottom, Topography of voltage differences between losses and wins separately for trials with large and small outcomes.
- Figure 4.
Grand-average ERP waveforms from channel FCz after the presentation of alternative outcomes. Results are shown separately as a function of the objective reward magnitude and valence of these outcomes (a) and the value of these outcomes relative to the chosen outcome on the trial (b). The abscissa shows the time (in milliseconds) relative to the presentation of the outcome stimulus.
- Figure 5.
Scalp topography of orthogonal contrasts between reward magnitude and valence of alternative outcomes 300 msec after stimulus presentation. Top, Topography of voltage differences between large and small outcomes. Bottom, Topography of voltage differences between trials in which the alternative outcome was associated with gains and losses of money; trials with large and small outcomes are indicated separately.
