participant_id |
Unique identifier for each participant. |
trial_type |
Type of trial, either "learning-trials" or "probe" |
symbol_L_name |
Identifier for the symbol presented on the left. May be 75R1, 75R2, 25R1, 25R2, 25P1, 25P2, 75P1, 75P2, Zero (neutral in transfer phase). |
symbol_R_name |
Identifier for the symbol presented on the right. May be 75R1, 75R2, 25R1, 25R2, 25P1, 25P2, 75P1, 75P2, Zero (neutral in transfer phase). |
symbol_L_value |
Numerical value assigned to the left symbol on that trial. 0=Novel, 1=75P, 2=25P, 3=25R, 4=75R |
symbol_R_value |
Numerical value assigned to the right symbol on that trial. 0=Novel, 1=75P, 2=25P, 3=25R, 4=75R |
feedback_L |
Feedback value associated with the left symbol. May be -10, 0, or 10. This will be empty for the transfer phase. |
feedback_R |
Feedback value associated with the right symbol. May be -10, 0, or 10. This will be empty for the transfer phase. |
context_val |
Encoded task context value: 1 (reward), -1 (punishment) |
context_val_name |
Human-readable description of context_val, e.g., "Reward" or "Loss Avoid". |
symbol_names |
Context names, dissociating between the different pairs within each context (Reward1, Reward2, Punish1, Punish2). |
symbol_name |
Context names, collapsing across similar pairs (Reward, Punish). |
trial_number |
Trial number within a given symbol's presentation history (e.g., trial number for 75R1). |
binned_trial |
Trial bin based on its position in the task (Trials 1-6=Early, Trials 7-12=Mid-Early, Trials 13-18=Mid-Late, Trials 19-24=Late). |
choice_made |
Binary indicator for the participant's choice: 1 for right, 0 for left. |
symbol_chosen |
The numerical value of the symbol that was chosen on the trial. |
symbol_ignored |
The numerical value of the symbol that was not chosen on the trial. |
paired_symbols |
Identifiers for each unique pair, respective of their symbol values. e.g., 4_1 is 75R versus 75P |
accuracy |
Accuracy score for the trial, 100 for correct and 0 for incorrect. |
rt |
Reaction time in milliseconds. |
duration |
Self-report string describing current pain state, e.g., "I am not in pain" or "1 – 5 years". |
group_code |
Participant group code (typically categorical or condition label): "no pain", "acute pain", or "chronic pain". |
intensity |
Self-reported pain intensity rating. |
unpleasant |
Self-reported unpleasantness rating. |
interference |
Self-reported rating of pain interference with daily life. |
composite_pain |
Composite pain score (e.g., average of intensity, unpleasantness, and interference ratings). |
age |
Participant's age in years. |
sex |
Participant’s reported sex (e.g., "Female", "Male", "Other"). |