Another agent’s mental state must be inferred, or money must be allocated between the participant and another player; inference accuracy and allocation patterns are the measures.
One-shot allocation task in which a proposer unilaterally divides an endowment between self and a passive receiver; indexes altruism and social preferences. Engages 4 processes.
Wimmer & Perner–style narrative in which a protagonist holds a belief the participant knows to be false; correct prediction of the protagonist’s action indexes mentalizing. Engages 4 processes.
Two-player one-shot or iterated game with cooperate/defect choices and asymmetric payoffs; choice patterns index cooperation and strategic reasoning. Engages 6 processes.
Choice of the best-matching mental-state word for a photograph of the eye region; accuracy indexes complex emotion and mental-state inference. Engages 4 processes.
Two-stage exchange in which an investor transfers a fraction of an endowment (multiplied on receipt), and a trustee returns some fraction; amounts transferred index trust and reciprocity. Engages 5 processes.
Proposer offers a division of an endowment; responder accepts or rejects. Rejection of unfair offers indexes inequity aversion and strategic punishment. Engages 4 processes.
Social cognition and social choice tasks¶
Another agent’s mental state must be inferred, or money must be allocated between the participant and another player; inference accuracy and allocation patterns are the measures.
This family contains 6 tasks.
Dictator Game¶
One-shot allocation task in which a proposer unilaterally divides an endowment between self and a passive receiver; indexes altruism and social preferences. Engages 4 processes.
False Belief¶
Wimmer & Perner–style narrative in which a protagonist holds a belief the participant knows to be false; correct prediction of the protagonist’s action indexes mentalizing. Engages 4 processes.
Prisoner’s Dilemma¶
Two-player one-shot or iterated game with cooperate/defect choices and asymmetric payoffs; choice patterns index cooperation and strategic reasoning. Engages 6 processes.
Reading the Mind in the Eyes¶
Choice of the best-matching mental-state word for a photograph of the eye region; accuracy indexes complex emotion and mental-state inference. Engages 4 processes.
Trust Game¶
Two-stage exchange in which an investor transfers a fraction of an endowment (multiplied on receipt), and a trustee returns some fraction; amounts transferred index trust and reciprocity. Engages 5 processes.
Ultimatum Game¶
Proposer offers a division of an endowment; responder accepts or rejects. Rejection of unfair offers indexes inequity aversion and strategic punishment. Engages 4 processes.