Twin-singleton differences in verbal ability: Where do they stem from?

In a follow-up investigation at age 9, the cognitive and social characteristics of 35 pairs of twins, studied previously at age 2, were compared with those of matched singletons at school. At age 2, twins' lower verbal ability compared with singletons' was attributed to lesser amount of speech by parents—seen as an outcome of the “twoness” of the “twin situation”—rather than to biological handicap or mother's education. At age 9, twins were equal to singletons in physical development and nonverbal ability, but the monozygotic (MZ)—not the dizygotic (DZ)—twins showed lower verbal ability. However, far more variance in verbal ability was accounted for by mother's education and birthweight than by twinship. In the long run, therefore, mothers' educational differences are more influential than the “twoness” of the “twin situation.”     

Standard and non-standard Newcomb Problems

Examples involving common causes — most prominently, examples involving genetically influenced choices — are analytically equivalent not to standard Newcomb Problems — in which the Predictor genuinely predicts the agent's decision — but to non-standard Newcomb Problems — in which the Predictor guarantees the truth of her predictions by interfering with the agent's decision to make the agent choose as it was predicted she would. When properly qualified, causal and epistemic decision theories diverge only on standard — not on non-standard — Newcomb Problems, and thus not on examples involving common causes.     

Violence against women: Mental health effects. Part II. Conceptualizations of posttraumatic stress

A broad range of psychological aftereffects have been noted among women who have experienced male-perpetrated violence. These symptoms vary considerably among individuals, across social contexts, and across different types of violent encounters (Coley & Beckett, 1988; Goodman, Koss, & Russo, 1992; Koss, 1988; Straus, Gelles, & Steinmetz, 1980). Nevertheless, a remarkably consistent picture of the psychological sequelae of violence—particularly sexual and physical assault—emerges from the empirical and clinical literature (Koss, 1988). In this article, we use the posttraumatic stress disorder diagnosis—a frame that captures many of the disparate symptoms described by researchers—as a basis for exploring several conceptual models that have been developed to explain women's responses to violence.     

Effects of cognitive heuristics and goals on negotiator performance and subsequent goal setting

The purpose of this study was to examine the effects of a situational constraint —an externally set goal — and related cognitive variables — outcome expectancies, perceived self-competency, and goal commitment — on the performance and goal setting of 79 novice negotiators. Expectancy judgments affected goal commitment but not performance or goal choice. Subjects assigned difficult goals were more profitable and set harder new goals than subjects assigned easier goals. Machiavellianism had a powerful effect on performance and exerted more causal influence on self-set goals than actual performance or prior goals. Unexpectedly, role assignment proved to be an important determinant of performance. A decision science perspective was utilized to explain the results.     

Über Notwendigkeit und Möglichkeit der psychologischen Wahrnehmungslehre

Zusammenfassung In der psychologischen Persönlichkeitstheorie kann die Analyse der Wahrnehmungsfunktion nicht ohne ernste Folgen ausgeklammert werden. Diese Ausklammerung tritt sowohl in vom behavioristischen als auch vom phänomenologisch-introspektionistischen Ansatz aus entwickelten Persönlichkeitstheorien auf — wobei allerdings die Wahrnehmungsfrage in Umformulierungen ständig erneut aufbricht — und ist die Folge der Versuche, das in der Wahrnehmungslehre thematisch werdende psychophysische Dilemma zu umgehen. Gerade dieses Dilemma aber muß ausgehalten werden, da sonst nicht nur die Wahrnehmungslehre verkümmert, sondern auch das Bild vom Menschen sich in der psychologischen Theorie destruiert. Es wird nun für die Wahrnehmungslehre vorgeschlagen, die aussichtslosen Beseitigungsbemühungen aufzugeben und statt dessen zu versuchen, den durch das Dilemma bedingten Unsicherheitsbereich der Theoriebildung sowohl von physiologischer als auch von psychologischer Seite aus vorgehend — quasi in unendlicher Approximation — einzuschränken. Als ein der Psychologie möglicher Beitrag dazu wird die physiologiefreie Ableitung einer Theorie des Mediums von Strukturvorgängen im Wahrnehmungsfeld betrachtet.Der vorliegende Aufsatz bildet das Einleitungskapitel einer Arbeit, die — in teilweiser Erfüllung der Habilitationsverpflichtungen — der Philosophischen Fakultät der Westfälischen Wilhelms-Universität Münster vorgelegt wurde. — Der Verfasser widmet ihn seinem hochverehrten Lehrer, Herrn Professor Dr. Wolfgang Metzger, in Dankbarkeit zum 60. Geburtstage.     

Education for the prepared mind

A theory of education requires a theory of the mind that is to be educated. Modules are the central feature of the mind of the infant. Innate learning devices, modules, prepare the infant with the following competences: language, number, theory of mind, spatial navigation, music, etc. We propose that the child be taught what evolution has prepared the child to learn. This program requires adding both modular—e.g., Theory of Mind, morality, art—as well as domain-general competences—e.g., analogies, causal analysis—to the curriculum. The program further requires revamping the presently inappropriate teaching of certain modular competences. Finally it requires correcting “evolutionary errors”—modular competences that were not ideal (see Galileo); or that, though once beneficial, have become harmful in the modern world (see imitation). This proposal is taken from [Premack, D. & Premack, A. (2003). Original intelligence. New York: Macgraw-Hill].     

Concerning the integration of sciences: Kinds and stages

The detailed analysis allows to discern seven kinds of integration, namely: I₁ consisting in the synthesis of scientific disciplines from their elements, including disciplinary unification I₁; I₂ inclusion of a science in (reduction to) another, more general; I₃ — links between different sciences, especially establishing of common elements; I₄ — interdisciplines bridging various sciences; I₅ — combination of two (or more) disciplines into a new (complex) science; I₆ — a general approach to several domains or multidisciplinary unification; I₇ — transdisciplinary sciences about relations of the same type in various traditional domains. These kinds of integration are interwoven with processes of differentiation, viz. D₁ — internal differentiation of the sciences resulting of I₁; D₂ — interdisciplinary differentiation concomitant I₄, and D₃ — specialization of I₇ sciences in several sections. As a result integration and differentiation are combined in the pairs I₁ — D₁, I₇ — D₃, and D₂ — I₄. The processes of integration (and differentiation) may be presented schematically in the following (not strictly isolated one of another) sequence: in the 17th century started I₁ followed by D₁, and in the last decades by I₁ during the 18th and the 19th c. cases of I₂ and I₃ appear; I₄ (together with D₂) is unfolding since the late 19th century. Finally, I₇ (and D₃), as well as I₅ and I₆ pertain to the latter half of our century. Representative are for one thing I₁, I₄, and I₇ outlining the main stages of integration and at the same time connected with respective kinds of differentiation.     

Ethos,pathos and logos in Aristotle's Rhetoric: A re-examination

In Aristotle's Rhetoric, logos must be conceived as enthymematical argumentation relative to the issue of the case. Ethos and pathos also can take the form of an enthymeme, but this argumentation doesn't relate (directly) to the issue. In this kind of enthymeme, the conclusion is relative to the ethos of the speaker or (reasons for) the pathos of the audience. In an ideal situation — with a good procedure and rational judges — logos dominates and in the real situation of Aristotle's time — with an imperfect procedure and irrational judges — ethos and pathos prevail.I should like to thank R. Berkenbosch and J. Wisse for their comments.     

Merging without mystery or: Variables in dynamics semantics

In this paper we discuss the treatment of variables in dynamic semantics. Referent systems are introduced as a flexible mechanism for working with variables. In a referent system we carefully distinguish the variables themselves both from the machinery by which we manipulate them — their names — and from the information that we store in them — their values. It is shown that the referent systems provide a natural basis for dynamic semantics. The semantics with referent systems is compared with the familiar formalisms in dynamic semantics,DRT andDPL.     

Soviet views on Mao and Maoism

In their criticism of Maoism, contemporary Soviet philosophers follow the basic structure of the orthodox presentation of Marxism — Leninism and use the whole panoply of polemical tools which the Leninist heritage offers them. Thus far, this anti — Maoism is generally maladroit and often self-contradictory.     

Deconstructing Differentiation: Self Regulation, Interdependent Relating, and Well-Being in Adulthood

This study examined underlying similarities between the Personal Authority in the Family System Questionnaire (PAFS; Bray, Williamson, & Malone, 1984a) and the Differentiation of Self Inventory (DSI; Skowron & Friedlander, 1998). Generalized least-squares factor analysis yielded two related factors, Self Regulation and Interdependent Relating, accounting for 60% of the variance in the solution. Greater Self Regulation—comprised of DSI scales characterized by less emotional reactivity and the ability to take an I position in relationships—and Interdependent Relating—marked by greater personal authority, intergenerational intimacy and less intergenerational fusion on the PAFS and less emotional cutoff on the DSI—predicted well-being among both women and men. Implications for family therapy and suggestions for future research are discussed.     

The lie scale as a predictor of placebo response

Patients engaged in a trial of mepriprazole on the irritable bowel syndromewere administered the Eysenck Personality Questionnaire and the Symptom Rating Test. It was hypothesized that high Lie scorers—‘lacking in insight’—would respond to treatment. There was little difference between the active drug and placebo but the results indicated that it was the low Lie scorers who showed improvement, and are interpreted in terms of a repression-sensitization dichotomy.     

Peak Performance of Business Leaders: An Experience Parallel to Self-Actualization Theory

To investigate peak performance, 40 business leaders described personal experiences through interviews and the Privette Experience Questionnaire. In order to discriminate processes of peak performance from personality attributes of business leaders, their questionnaire data were compared with parallel data from a sample of 41 university men. Multivariate analyses of variance of factors and items and follow-up analyses indicated that scores differed but not on defining attributes. The peak performance dyad—full focus and clear sense of self—and aspects of peak experience—significance and fulfillment—were endorsed by both samples. Business leaders endorsed sociability and personal discipline and denied playfulness more than the university men, who endorsed fluidity. The relation of peak performance to self-actualization theory is discussed.     

Constant colors in the head

I defend a version of color subjectivism — that colors are sortals for certain neural events — by arguing against a sophisticated form of color objectivism and by showing how a subjectivist can legitimately explain the phenomenal fact that colors seem to be properties of external objects.I am very grateful to C. L. Hardin and Mohan Matthen for reading early drafts of this paper — in Hardin's case, two drafts. They both helped me to become clearer about the issues and improved the argument considerably. I am grateful to Ran Lahav and Paul Pietroski for incisive comments on more recent drafts, and to others for comments made in discussion.     

Pretabular varieties of modal algebras

We study modal logics in the setting of varieties of modal algebras. Any variety of modal algebras generated by a finite algebra — such, a variety is called tabular — has only finitely many subvarieties, i.e. is of finite height. The converse does not hold in general. It is shown that the converse does hold in the lattice of varieties of K4-algebras. Hence the lower part of this lattice consists of tabular varieties only. We proceed to show that there is a continuum of pretabular varieties of K4-algebras — those are the non-tabular varieties all of whose proper subvarieties are tabular — in contrast with Maksimova's result that there are only five pretabular varieties of S4-algebras.     

Time in philosophy and in physics: From Kant and Einstein to Gödel

The essay centers on Gödel's views on the place of our intuitive concept of time in philosophy and in physics. It presents my interpretation of his work on the theory of relativity, his observations on the relationship between Einstein's theory and Kantian philosophy, as well as some of the scattered remarks in his conversations with me in the seventies — namely, those on the philosophies of Leibniz, Hegel and Husserl — as a successor of Kant — in relation to their conceptions of time.For the physical world, the four dimensions are natural. But for the mind, there is no such natural coordinate system; time is the only natural frame of reference.Gödel, conversation on 15.3.72     

Disability Rights,Prenatal Diagnosis and Eugenics: A Cross-Cultural View

This paper considers the disability rights critique of genetic testing in the context of different communities and the issue of nondirectiveness. Despite the wide usage of genetic diagnosis in Israel, no public debate has emerged there concerning disability rights and prenatal testing. The common attitude that emerged from interviews with Israeli representatives of organizations “of’’ and “for’’ people with genetic diseases and congenital disabilities can be described as a two-fold view of disability: support of genetic testing during pregnancy, and support of the disabled person after birth. This two-fold view is explained as a secular construction situated in legal, economic and cultural contexts. The paper concludes by considering the implications of the “two-fold view’’ of disability for the profession of genetic counseling. It is argued that awareness of the existence of conflicting views among clients—such as the view of the ‘disability critique’ as well as of the “two-fold view of disability’’—should strengthen the significance of nondirectiveness.     

Types of body representation and the sense of embodiment

The sense of embodiment is vital for self recognition. An examination of anosognosia for hemiplegia—the inability to recognise that one is paralysed down one side of one’s body—suggests the existence of ‘online’ and ‘offline’ representations of the body. Online representations of the body are representations of the body as it is currently, are newly constructed moment by moment and are directly “plugged into” current perception of the body. In contrast, offline representations of the body are representations of what the body is usually like, are relatively stable and are constructed from online representations. This distinction is supported by an analysis of phantom limb—the feeling that an amputated limb is still present—phenomena. Initially it seems that the sense of embodiment may arise from either of these types of representation; however, an integrated representation of the body seems to be required. It is suggested information from vision and emotions is involved in generating these representations. A lack of access to online representations of the body does not necessarily lead to a loss in the sense of embodiment. An integrated offline representation of the body could account for the sense of embodiment and perform the functions attributed to this sense.