Originally issued in 1954 and updated in 1961 and 1987, this pioneering study of "small group" conflict and cooperation has long been out-of-print. It is now available, in cloth and paper, with a new introduction by Donald Campbell, and a new postscript by O.J. Harvey. In this famous experiment, one of the earliest in inter-group relationships, two dozen twelve-year-old boys in summer camp were formed into two groups, the Rattlers and the Eagles, and induced first to become militantly ethnocentric, then intensely cooperative. Friction and stereotyping were stimulated by a tug-of-war, by frustrations perceived to be caused by the "out" group, and by separation from the others. Harmony was stimulated by close contact between previously hostile groups and by the introduction of goals that neither group could meet alone. The experiment demonstrated that conflict and enmity between groups can be transformed into cooperation and vice versa and that circumstances, goals, and external manipulation can alter behavior. Some have seen the findings of the experiment as having implications for reduction of hostility among racial and ethnic groups and among nations, while recognizing the difficulty of control of larger groups.

The fascinating true story of one of the most controversial psychological experiments of the modern era Competition. Prejudice. Discrimination. Conflict. In 1954, a group of boys attended a remote summer camp in Oklahoma. There they were split into two groups, and encouraged to bully, harass, and demonise each other. The results would make history as one of social psychology’s classic studies: the Robbers Cave experiment. Conducted at the height of the Cold War, the experiment officially had a happy ending: the boys reconciled, and psychologist Muzafer Sherif demonstrated that while hatred and violence are powerful forces, so too are cooperation and harmony. Today it is proffered as proof that under the right conditions warring groups can make peace. Yet the true story of the experiments is far more complex, and more chilling. In The Lost Boys, Gina Perry explores the experiment and its consequences, tracing the story of Sherif, a troubled outsider who struggled to craft an experiment that would vanquish his personal demons. Drawing on archival material and new interviews, Perry pieces together a story of drama, mutiny, and intrigue that has never been told before.

When social psychologist Stanley Milgram invited volunteers to take part in an experiment at Yale in the summer of 1961, none of the participants could have foreseen the worldwide sensation that the published results would cause. Milgram reported that fully 65 percent of the volunteers had repeatedly administered electric shocks of increasing strength to a man they believed to be in severe pain, even suffering a life-threatening heart condition, simply because an authority figure had told them to do so. Such behavior was linked to atrocities committed by ordinary people under the Nazi regime and immediately gripped the public imagination. The experiments remain a source of controversy and fascination more than fifty years later. In Behind the Shock Machine, psychologist and author Gina Perry unearths for the first time the full story of this controversial experiment and its startling repercussions. Interviewing the original participants—many of whom remain haunted to this day about what they did—and delving deep into Milgram's personal archive, she pieces together a more complex picture and much more troubling picture of these experiments than was originally presented by Milgram. Uncovering the details of the experiments leads her to question the validity of that 65 percent statistic and the claims that it revealed something essential about human nature. Fleshed out with dramatic transcripts of the tests themselves, the book puts a human face on the unwitting people who faced the moral test of the shock machine and offers a gripping, unforgettable tale of one man's ambition and an experiment that defined a generation.

The psychology behind political partisanship: “The kind of research that will change not just how you think about the world but how you think about yourself.” —Ezra Klein, Vox Political polarization in America has moved beyond disagreements about matters of policy. For the first time in decades, research has shown that members of both parties hold strongly unfavorable views of their opponents. This is polarization rooted in social identity, and it is growing. The campaign and election of Donald Trump laid bare this fact of the American electorate, its successful rhetoric of “us versus them” tapping into a powerful current of anger and resentment. With Uncivil Agreement, Lilliana Mason looks at the growing social gulf across racial, religious, and cultural lines, which have recently come to divide neatly between the two major political parties. She argues that group identifications have changed the way we think and feel about ourselves and our opponents. Even when Democrats and Republicans can agree on policy outcomes, they tend to view one other with distrust and to work for party victory over all else. Although the polarizing effects of social divisions have simplified our electoral choices and increased political engagement, they have not been a force that is, on balance, helpful for American democracy. Bringing together theory from political science and social psychology, Uncivil Agreement clearly describes this increasingly “social” type of polarization, and adds much to our understanding of contemporary politics.

Why do people become divided? What steps can we all take to reduce hostility and bring about understanding? Poles Apart has the answers. In Poles Apart, an expert on polarisation, a behavioural scientist and a professional communicator explain why we are so prone to be drawn into rival, often deeply antagonistic factions. They explore the shaping force of our genetic make-up on our fundamental views and the nature of the influences that family, friends and peers exert. They pinpoint the economic and political triggers that tip people from healthy disagreement to dangerous hostility, and the part played by social media in spreading entrenched opinions. And they help us to understand why outlooks that can seem so bizarre and extreme to us seem so eminently sensible to those who hold them. Above all, they show what practical and effective steps we can all take to narrow divisions, build respect for others, and create a greater degree of common understanding. ____________________________________________________ 'Poles Apart is an extraordinary achievement: fresh, deeply authoritative, and entertaining on every page. Everyone talks about polarisation, but no one does it like Goldsworthy, Osborne, and Chesterfield. You'll finish this book wiser, kinder, and more hopeful than when you started it.' Jamie Susskind, author of Future Politics 'A fascinating and thought-provoking analysis of the divisions between us, how we bridge them, how we reshape the world - and ourselves too. Essential reading.' Cathy Newman, presenter of Channel 4 News and author 'Asks the best question I have ever heard. And, critically, offers solutions. A must read.' Rory Sutherland, Vice Chairman of Ogilvy UK, and author of Alchemy 'Technology may have connected the world, but it's now being exploited to divide and polarise us. This is a pivotal moment for this book to be written, read and understood.' Peter Gabriel, musician

A leading cognitive scientist argues that a deep sense of good and evil is bred in the bone. From John Locke to Sigmund Freud, philosophers and psychologists have long believed that we begin life as blank moral slates. Many of us take for granted that babies are born selfish and that it is the role of society—and especially parents—to transform them from little sociopaths into civilized beings. In Just Babies, Paul Bloom argues that humans are in fact hardwired with a sense of morality. Drawing on groundbreaking research at Yale, Bloom demonstrates that, even before they can speak or walk, babies judge the goodness and badness of others’ actions; feel empathy and compassion; act to soothe those in distress; and have a rudimentary sense of justice. Still, this innate morality is limited, sometimes tragically. We are naturally hostile to strangers, prone to parochialism and bigotry. Bringing together insights from psychology, behavioral economics, evolutionary biology, and philosophy, Bloom explores how we have come to surpass these limitations. Along the way, he examines the morality of chimpanzees, violent psychopaths, religious extremists, and Ivy League professors, and explores our often puzzling moral feelings about sex, politics, religion, and race. In his analysis of the morality of children and adults, Bloom rejects the fashionable view that our moral decisions are driven mainly by gut feelings and unconscious biases. Just as reason has driven our great scientific discoveries, he argues, it is reason and deliberation that makes possible our moral discoveries, such as the wrongness of slavery. Ultimately, it is through our imagination, our compassion, and our uniquely human capacity for rational thought that we can transcend the primitive sense of morality we were born with, becoming more than just babies. Paul Bloom has a gift for bringing abstract ideas to life, moving seamlessly from Darwin, Herodotus, and Adam Smith to The Princess Bride, Hannibal Lecter, and Louis C.K. Vivid, witty, and intellectually probing, Just Babies offers a radical new perspective on our moral lives.

This book is a compilation of papers by different authors, among them Vamik Volkan, Robi Friedman, John Schlapobersky, Haim Weinberg, and Michael Bucholz, with a foreword by Earl Hopper and an introduction by Gila Ofer, both editor and contributor. While most of the writers are group analysts, working in the tradition of Foulkes, several others come from different though complementary perspectives, enriching the theoretical basis of the research. So, there are perspectives, inter alia, from Bion and Cortesao. The writers represent different countries and cultures, focusing on problems that are endemic to their own localities that yet have a wider and deeper resonance. We are introduced to conflict and division in Bedouin society, the Roma people living in Greece, citizens' reflective communities in Serbia, continuing territorial and ideological differences in Israel and the middle-east, and tensions of difference in the psychoanalytic community itself.