In 1974 an article appeared in Science magazine with the dry-sounding title “Judgment Under Uncertainty: Heuristics and Biases” by a pair of psychologists who were not well known outside their discipline of decision theory. In it Amos Tversky and Daniel Kahneman introduced the world to Prospect Theory, which mapped out how humans actually behave when faced with decisions about gains and losses, in contrast to how economists assumed that people behave. Prospect Theory turned Economics on its head by demonstrating through a series of ingenious experiments that people are much more concerned with losses than they are with gains, and that framing a choice from one perspective or the other will result in decisions that are exactly the opposite of each other, even if the outcomes are monetarily the same. Prospect Theory led cognitive psychology in a new direction that began to uncover other human biases in thinking that are probably not learned but are part of our brain’s wiring.

Thinking fast and slow.

Social Network Analysis

Emotion and Adaptation

In spite of the remarkable progress made in the burgeoning field of social neuroscience, the neural mechanisms that underlie social encounters are only beginning to be studied and could-paradoxically-be seen as representing the "dark matter" of social neuroscience. Recent conceptual and empirical developments consistently indicate the need for investigations that allow the study of real-time social encounters in a truly interactive manner. This suggestion is based on the premise that social cognition is fundamentally different when we are in interaction with others rather than merely observing them. In this article, we outline the theoretical conception of a second-person approach to other minds and review evidence from neuroimaging, psychophysiological studies, and related fields to argue for the development of a second-person neuroscience, which will help neuroscience to really "go social"; this may also be relevant for our understanding of psychiatric disorders construed as disorders of social cognition.

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Toward a second-person neuroscience.

Statistical physics of human cooperation

Punishing wrongdoers can confer reputational benefits, and people sometimes punish without careful consideration. But are these observations related? Does reputation drive people to people to "punish without looking"? And if so, is this because unquestioning punishment looks particularly virtuous? To investigate, we assigned "Actors" to decide whether to sign punitive petitions about politicized issues ("punishment"), after first deciding whether to read articles opposing these petitions ("looking"). To manipulate reputation, we matched Actors with copartisan "Evaluators," varying whether Evaluators observed i) nothing about Actors' behavior, ii) whether Actors punished, or iii) whether Actors punished and whether they looked. Across four studies of Americans (total n = 10,343), Evaluators rated Actors more positively, and financially rewarded them, if they chose to (vs. not to) punish. Correspondingly, making punishment observable to Evaluators (i.e., moving from our first to second condition) drove Actors to punish more overall. Furthermore, because some of these individuals did not look, making punishment observable increased rates of punishment without looking. Yet punishers who eschewed opposing perspectives did not appear particularly virtuous. In fact, Evaluators preferred Actors who punished with (vs. without) looking. Correspondingly, making looking observable (i.e., moving from our second to third condition) drove Actors to look more overall-and to punish without looking at comparable or diminished rates. We thus find that reputation can encourage reflexive punishment-but simply as a byproduct of generally encouraging punishment, and not as a specific reputational strategy. Indeed, rather than fueling unquestioning decisions, spotlighting punishers' decision-making processes may encourage reflection.

Jillian J. Jordan

Papers

How reputation does (and does not) drive people to punish without looking.

A pull versus push framework for reputation