Is the United States "the land of equal opportunity" or is the playing field tilted in favor of those whose parents are wealthy, well educated, and white? If family background is important in getting ahead, why? And if the processes that transmit economic status from parent to child are unfair, could public policy address the problem? Unequal Chances provides new answers to these questions by leading economists, sociologists, biologists, behavioral geneticists, and philosophers.New estimates show that intergenerational inequality in the United (...) States is far greater than was previously thought. Moreover, while the inheritance of wealth and the better schooling typically enjoyed by the children of the well-to-do contribute to this process, these two standard explanations fail to explain the extent of intergenerational status transmission. The genetic inheritance of IQ is even less important. Instead, parent-offspring similarities in personality and behavior may play an important role. Race contributes to the process, and the intergenerational mobility patterns of African Americans and European Americans differ substantially.Following the editors' introduction are chapters by Greg Duncan, Ariel Kalil, Susan E. Mayer, Robin Tepper, and Monique R. Payne; Bhashkar Mazumder; David J. Harding, Christopher Jencks, Leonard M. Lopoo, and Susan E. Mayer; Anders Björklund, Markus Jäntti, and Gary Solon; Tom Hertz; John C. Loehlin; Melissa Osborne Groves; Marcus W. Feldman, Shuzhuo Li, Nan Li, Shripad Tuljapurkar, and Xiaoyi Jin; and Adam Swift. (shrink)

A unifying theory of general anesthetic-induced unconsciousness must explain the common mechanism through which various anesthetic agents produce unconsciousness. Functional-brain-imaging data obtained from 11 volunteers during general anesthesia showed specific suppression of regional thalamic and midbrain reticular formation activity across two different commonly used volatile agents. These findings are discussed in relation to findings from sleep neurophysiology and the implications of this work for consciousness research. It is hypothesized that the essential common neurophysiologic mechanism underlying anesthetic-induced unconsciousness is, as with (...) sleep-induced unconsciousness, a hyperpolarization block of thalamocortical neurons. A model of anesthetic-induced unconsciousness is introduced to explain how the plethora of effects anesthetics have on cellular functioning ultimately all converge on a single neuroanatomic/neurophysiologic system, thus providing for a unitary physiologic theory of narcosis related to consciousness. (shrink)

The appearance of a philosophical survey of ancient skeptical thought in English is one that many readers would welcome. Appearances, however, may be deceptive.

We investigated the cognitive structure of emotions in Indonesia and The Netherlands in a series of three studies. Sets of 120 emotion terms were selected based on local ratings of prototypicality for "emotion". With similarity sortings a three-dimensional (evaluation, arousal, dominance) and a four-cluster (positive emotion, sadness, fear, anger) structure was found in each group. Of 50 pairs of translation-equivalent terms, 42 pairs were also found to be cognitively equivalent. With these equivalent terms a good fit of a common cognitive (...) emotion structure was demonstrated in both countries. In a fourth and final study, the location of two social emotions, "shame" and "guilt", in the common structure was found to be closer to "fear" and somewhat further away from "anger" in Indonesia than in the Netherlands. (shrink)

This is a new release of the original 1960 edition.

There has been a long tradition of characterizing man as the animal that talks. However, the remarkable ability of using pictures also only belongs to human beings, after all we know empirically so far. Are there conceptual reasons for that coincidence? The paper is dedicated to a philosophical programme of “concept-genetic” considerations dealing in particular with the dependencies between those two abilities: The conceptual relation between the competence to use assertive language and the faculty of employing pictures must be conceived (...) of as being much closer than usually expected. Indeed we conclude, there cannot be creatures with only one of them. (shrink)

For various domains in proportional reasoning cognitive development is characterized as a progression through a series of increasingly complex rules. A multiplicative relationship between two task features, such as weight and distance information of blocks placed at both sides of the fulcrum of a balance scale, appears difficult to discover. During development, children change their beliefs about the balance scale several times: from a focus on the weight dimension (Rule I) to occasionally considering the distance dimension (Rule II), guessing (Rule (...) III), and applying multiplication (Rule IV; Siegler, 1981). Because of the detailed empirical findings the balance scale task has become a benchmark task for computational models of proportional reasoning. In this article, we present a large empirical study (N = 420) of which the findings provide a challenge for computational models. The effect of feedback and the effect of individually adapted training items on rule transition were tested for children using Rule I or Rule II. Presenting adapted training items initiates belief revision for Rule I but not for Rule II. The experience of making mistakes (by providing feedback) induces a change for both Rule I and Rule II. However, a delayed posttest shows that these changes are preserved after 2 weeks only for children using Rule I. We conclude that the transition from Rule I to Rule II differs from the transition from Rule II to a more complex rule. Concerning these empirical findings, we will review performance of computational models and the implications for a future belief revision model. It is one Thing, to show a Man that he is in an Error, and another, to put him in possession of Truth. John Locke. (shrink)

We make two suggestions with regard to Depue & Collins's target article. First, regarding the functioning of MOC13, we provide data indicating that, contrary to D&C's apparent position, this structure is not necessary for instrumental conditioning. Second, we suggest that D&C's approach would be advanced by reference to formal computational theory, in particular the work of Grossberg. We suggest that an integration of Grossberg 's and D&C's models can provide a more complete account of extraversion.

Forbidden areas, i.e. areas (sites, cities, countries) that are inaccessible for topographical reasons or especially because of decisions based on political, religious, or other motivations are usually surrounded by an aura of mystery and almost necessarily arouse curiosity. The dream of generations of explorers was to reach Lhasa. An area can be closed not only to outsiders but also to “insiders:” nobody is allowed to leave for the “outside.” The isolation imposed on Japan by the Tokugawa regime was such a (...) two-way seclusion aided, of course, by geographical conditions and hence easily enforceable. It has been suggested, perhaps not quite seriously, that the famous Chinese wall was meant not only to keep out barbarian invaders, but also to prevent Chinese from leaving. That there was some kind of border control is also suggested by the leger, according to which Lao-tse, before disappearing into the west, committed his teaching, the Tao-te-kinq, to writing at the request of the “gatekeeper.” One may well wonder whether there exists another equally influential text written at the behest of a border policeman! (shrink)

Vier opstellen over rechtssociologie en criminologie, vanuit fenomenologische invalshoek bezien.

This paper describes novel tobacco control laws passed in New York City in 2017. These laws are designed to improve the city's strategy of using price to decrease tobacco consumption, and over time, change the city's landscape by making tobacco less accessible.

One method for investigating the neurobiology of consciousness is to experimentally manipulate consciousness as a variable and then visualize the resultant functional brain changes with advanced imaging techniques. To begin investigation into this area, healthy volunteers underwent positron emission tomography scanning while listening to randomized word lists in both conscious and unconscious conditions. Following anaesthesia, subjects had no explicit memories. Nonetheless, subjects demonstrated implicit memory on a forced-choice test . These subsequent memory scores were correlated with regional brain metabolism measured (...) during encoding. Conscious recall and unconscious recognition memory demonstrated considerable anatomic overlap in correlating significantly with relative glucose metabolism in auditory verbal memory areas. However, only conscious recall correlated with mediodorsal thalamic nucleus activity; unconscious recognition memory did not. These findings suggest that conscious versus unconscious memory distinctions may depend on the presence or absence of correlated thalamic activity, and directly implicate the thalamus in the neurobiology of consciousness. (shrink)