All data from Experiment 1 (no hormonal manipulation) and Experiment 2 (mesotocin manipulation)

These data come from a prosocial choice task conducted on captive pinyon jays. Experiment 1 measured baseline preferences (i.e. without hormonal manipulation), and Experiment 2 involved administration of a high or low dose of mesotocin (the avian homolog of oxytocin) or a saline control. Description of the relevant columns for "all_data.csv":
A: dataset - either 1 (for Experiment 1, no hormones) or 2 (for Experiment 2, with hormonal manipulation)
B: donor - a unique numeric identifier for each subject in the study
C: date - date that session in corresponding row was conducted
D: session - sequential numbering for each subject's session
E: trial - specific trial number within a session
F: partner - location of partner (either N- no partner, L-left sidecage, or R-right sidecage)
G: recipient - if present, a unique numeric identifier for each recipient in the study
H: payoff_condition - trial type; either Pre-Test (attention trials), Side bias (bias trials), or Prosocial/Altruistic
I: partner_present - either 'Partner absent' or 'Partner present'
J: hormone - hormone condition: NA for Experiment 1; A, B, C, or SAL for Experiment 2 (experimenters were blind to condition)
K: right.left - subject's choice on that trial, either right or left wire
L: response - FOR PRE-TEST (i.e. attention trials): 1 if subject correctly chose side with food, 0 if incorrect
L: response - FOR SIDE BIAS (i.e. bias trials): 1 if subject chose LEFT, 0 if RIGHT
L: response - FOR PROSOCIAL/ALTRUISTIC: IF partner absent, 1 if subject chose LEFT, 0 if RIGHT
L: response - FOR PROSOCIAL/ALTRUISTIC: IF partner present, 1 if subject chose same side as partner, 0 if not.