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. (shrink)

Many people have argued that the evolution of the human language faculty cannot be explained by Darwinian natural selection. Chomsky and Gould have suggested that language may have evolved as the by-product of selection for other abilities or as a consequence of as-yet unknown laws of growth and form. Others have argued that a biological specialization for grammar is incompatible with every tenet of Darwinian theory – that it shows no genetic variation, could not exist in any intermediate forms, confers (...) no selective advantage, and would require more evolutionary time and genomic space than is available. We examine these arguments and show that they depend on inaccurate assumptions about biology or language or both. Evolutionary theory offers clear criteria for when a trait should be attributed to natural selection: complex design for some function, and the absence of alternative processes capable of explaining such complexity. Human language meets these criteria: Grammar is a complex mechanism tailored to the transmission of propositional structures through a serial interface. Autonomous and arbitrary grammatical phenomena have been offered as counterexamples to the position that language is an adaptation, but this reasoning is unsound: Communication protocols depend on arbitrary conventions that are adaptive as long as they are shared. Consequently, language acquisition in the child should systematically differ from language evolution in the species, and attempts to analogize them are misleading. Reviewing other arguments and data, we conclude that there is every reason to believe that a specialization for grammar evolved by a conventional neo-Darwinian process. (shrink)

Despite its considerable intellectual interest and great social relevance, religion has been neglected by contemporary develop- mental psychologists. But in the last few years, there has been an emerging body of research exploring children’s grasp of certain universal religious ideas. Some recent findings suggest that two foundational aspects of religious belief – belief in divine agents, and belief in mind–body dualism – come naturally to young children. This research is briefly reviewed, and some future directions..

Many people have argued that the evolution of the human language faculty cannot be explained by Darwinian natural selection. Chomsky and Gould have suggested that language may have evolved as the by-product of selection for other abilities or as a consequence of as-yet unknown laws of growth and form. Others have argued that a biological specialization for grammar is incompatible with every tenet of Darwinian theory – that it shows no genetic variation, could not exist in any intermediate forms, confers (...) no selective advantage, and would require more evolutionary time and genomic space than is available. We examine these arguments and show that they depend on inaccurate assumptions about biology or language or both. Evolutionary theory offers clear criteria for when a trait should be attributed to natural selection: complex design for some function, and the absence of alternative processes capable of explaining such complexity. Human language meets these criteria: Grammar is a complex mechanism tailored to the transmission of propositional structures through a serial interface. Autonomous and arbitrary grammatical phenomena have been offered as counterexamples to the position that language is an adaptation, but this reasoning is unsound: Communication protocols depend on arbitrary conventions that are adaptive as long as they are shared. Consequently, language acquisition in the child should systematically differ from language evolution in the species, and attempts to analogize them are misleading. Reviewing other arguments and data, we conclude that there is every reason to believe that a specialization for grammar evolved by a conventional neo-Darwinian process. (shrink)

Are current theories of moral responsibility missing a factor in the attribution of blame and praise? Four studies demonstrated that even when cause, intention, and outcome (factors generally assumed to be sufficient for the ascription of moral responsibility) are all present, blame and praise are discounted when the factors are not linked together in the usual manner (i.e., cases of ‘‘causal deviance’’). Experiment 4 further demonstrates that this effect of causal deviance is driven by intuitive gut feelings of right and (...) wrong, not logical deliberation. Ó 2003 Published by Elsevier Science (USA). (shrink)

What would it be like to have never learned English, but instead only to know Hopi, Mandarin Chinese, or American Sign Language? Would that change the way you think? Imagine entirely losing your language, as the result of stroke or trauma. You are aphasic, unable to speak or listen, read or write. What would your thoughts now be like? As the most extreme case, imagine having been raised without any language at all, as a wild child. What—if anything—would it be (...) like to be such a person? Could you be smart; could you reminisce about the past, plan the future? (shrink)

There are two facts about word learning that everyone accepts. The first is that words really do have to be learned. There is controversy over how much conceptual structure and linguistic knowledge is innate, but nobody thinks that this is the case for the specific mappings between sounds (or signs) and meanings. This is because these mappings vary arbitrarily from culture to culture. No matter how intelligent a British baby is, for instance, she still has to learn, by attending to (...) the language of the people around her, that rabbits are called ‘rabbits’, that sleeping is called ‘sleeping’, and so on. (shrink)

Normal children learn tens of thousands of words, and do so quickly and efficiently, often in highly impoverished environments. In How Children Learn the Meanings of Words, I argue that word learning is the product of certain cognitive and linguistic abilities that include the ability to acquire concepts, an appreciation of syntactic cues to meaning, and a rich understanding of the mental states of other people. These capacities are powerful, early emerging, and to some extent uniquely human, but they are (...) not special to word learning. This proposal is an alternative to the view that word learning is the result of simple associative learning mechanisms, and it rejects as well the notion that children possess constraints, either innate or learned, that are specifically earmarked for word learning. This theory is extended to account for how children learn names for objects, substances, and abstract entities, pronouns and proper names, verbs, determiners, prepositions, and number words. Several related topics are also discussed, including naïve essentialism, children's understanding of representational art, the nature of numerical and spatial reasoning, and the role of words in the shaping of mental life. Key Words: cognitive development; concepts; meaning; semantics; social cognition; syntax; theory of mind; word learning. (shrink)

Children tend to extend object names on the basis of sameness of shape, rather than size, color, or materialFa tendency that has been dubbed the ‘‘shape bias.’’ Is the shape bias the result of well-learned associations between words and objects? Or does it exist because of a general belief that shape is a good indicator of object category membership? The present three studies addressed this debate by exploring whether the shape bias is specific to naming. In Study 1, 3-year-olds showed (...) the shape bias both when asked to extend a novel name and when asked to select an object of the same kind as a target object. Study 2 found the same shape bias when children were asked to generalize properties relevant to category membership. Study 3 replicated the findings from Study 1 with 2-year-olds. These findings suggest that the shape bias derives from children’s beliefs about object kinds and is not the product of associative learning. (shrink)

Shaun Nichols (this issue) correctly points out that current theories of the development of mindreading say nothing about children's intuitions concerning indeterminist choice. That is, there are numerous theories of how children make sense of belief, desire, and action, but none that appeal to any notion of free will. Nichols suggests two alternatives for why this is the case. It could either be (a) an --outrageous oversight-- on the part of developmental psychologists or (b) a principled omission, reflecting a consensus (...) that the notion of indeterminist choice is absent from children's mindreading processes. Nichols charitably favors the sec- ond alternative. (shrink)

Unobservable properties that are specific to individuals, such as their proper names, can only be known by people who are familiar with those individuals. Do young children utilize this “familiarity principle” when learning language? Experiment 1 tested whether forty-eight 2- to 4-year-old children were able to determine the referent of a proper name such as “Jessie” based on the knowledge that the speaker was familiar with one individual but unfamiliar with the other. Even 2-year-olds successfully identified Jessie as the individual (...) with whom the speaker was familiar. Experiment 2 examined whether children appreciate this principle at a general level, as do adults, or whether this knowledge may be specific to certain word-learning situations. To test this, forty-eight 3- to 5-year-old children were given the converse of the task in Experiment 1—they were asked to determine the individual with whom the speaker was familiar based on the speaker’s knowledge of an individual’s proper name. Only 5-year-olds reliably succeeded at this task, suggesting that a general understanding of the familiarity principle is a relatively late developmental accomplishment. (shrink)

: Certain themes of L.A. Paul’s Transformative Experience are explored in the context of an argument with a vampire. The major disagreement is about the extent to which third-party data should inform our decisions as to whether to embark on a transformative experience. Three case-studies are explored: becoming a vampire, having a child, and eating durian. Keywords: Transformative Experience; Decision; Epistemologically Transformative Experience; Personally Transformative Experience Discutendo con il vampiro Riassunto: Affronterò alcuni aspetti del libro di L.A. Paul (...) Transformative Experience nell’ambito di una discussione con un vampiro. Il punto di maggiore disaccordo verte sulla misura in cui fattori terzi dovrebbero informare le nostre decisioni in merito a un’esperienza trasformativa. Prenderò in considerazione tre casi: diventare vampiro, avere un figlio, mangiare il durian. Parole chiave: Esperienza trasformativa; Decisione; Esperienza epistemologicamente trasformativa; Esperienza personalmente trasformativa. (shrink)

Although young children might be uncertain about the nature of certain representations, most modern adults would explicitly maintain that photographs have no ongoing physical connection the objects that they depict. We demonstrate here in three studies that destruction of a photograph of a sentimental object produces significantly more electrodermal activity than destruction of photographs of other control objects. This response is not attributable to anxiety about being observed whilst destroying the picture, nor is it entirely due to simple visual association (...) ‐ the same response occurs when the photograph does not resemble the object. We suggest that this effect may reflect a tacit acceptance of “sympathetic magic”. (shrink)

A wide-ranging collection of essays inspired by the memory of the cognitive psychologist John Macnamara.

New Haven - What people think about many of the big issues that will be discussed in the next two months - like gay marriage, stem-cell research and the role of religion in public life - is intimately related to their views on human nature. And while there may be differences between Republicans and Democrats, one fundamental assumption is accepted by almost everyone. This would be reassuring - if science didn't tell us that this assumption is mistaken.

Although our concepts of “Mama,” “milk,” and “mice” have much in common, the suggestion that they are identical in structure in the mind of the prelinguistic child is mistaken. Even infants think about objects as different from substances and appreciate the distinction between kinds (e.g., mice) and individuals (e.g., Mama). Such cognitive capacities exist in other animals as well, and have important adaptive consequences.

College students implicitly judge interracial sex and gay sex to be morally wrong Some moral intuitions arise from psychological processes that are not fully accessible to consciousness. For instance, most people disapprove of consensual adult incest between siblings, but are unable to articulate why—they just feel that it is wrong (Haidt, 2001). More generally, there is evidence for at least two sources of moral judgment: explicit conscious reasoning and tacit intuitions, which are motivated by emotional responses (Greene et al., 2001) (...) and learned associations (Greenwald & Banaji, 1995). (shrink)