Cut-free tableau calculi for some propositional normal modal logics

We give sound and complete tableau and sequent calculi for the prepositional normal modal logics S4.04, K4B and G ⁰(these logics are the smallest normal modal logics containing K and the schemata A A, A A and A ( A); A A and AA; A A and ((A A) A) A resp.) with the following properties: the calculi for S4.04 and G ⁰are cut-free and have the interpolation property, the calculus for K4B contains a restricted version of the cut-rule, the so-called analytical cut-rule.In addition we show that G ⁰is not compact (and therefore not canonical), and we proof with the tableau-method that G ⁰is characterised by the class of all finite, (transitive) trees of degenerate or simple clusters of worlds; therefore G ⁰is decidable and also characterised by the class of all frames for G ⁰.Research supported by Fonds zur Förderung der wissenschaftlichen Forschung, project number P8495-PHY.Presented by W. Rautenberg     

The logic of thought experiments

In this paper I argue that (at least many) philosophical thought experiments are unreliable. But I argue that this notion of unreliability has to be understood relative to the goal of thought experiments as knowledge producing. And relative to that goal many thought experiments in science are just as unreliable. But in fact thought experiments in science play a varied role and I will suggest that knowledge production is a goal only under quite limited circumstances. I defend the view that these circumstances can (sometimes) arise in philosophy as well.     

Lexical Retrieval Deficit in Picture Naming: Implications for Word Production Models

In models of word retrieval, it is common to differentiate lexical-semantic (word meaning) and lexical-phonological (word form) levels. There has been considerable interest in the relationship between these two levels. The so-called discrete two-stage model claims that phonological activation follows selection at the lexical-semantic level and is limited only to the selected item. In contrast, nondiscrete (interactive and cascade) models assume that all activated lexical-semantic candidates are also phonologically activated to some extent. We addressed this issue by studying an anomic patient who suffered from a partial functional disconnection between lexical-semantic and lexical-phonological levels. A multitarget repeated naming task with phonological training was employed. Systematic manipulation of semantic and phonological relatedness between the to-be-named items indicated that our patient's word error patterns were sensitive to both types of lexical relatedness. A delayed repetition task employing the same items failed to show similar effects, suggesting that they were specific to naming. The discrete two-stage model is unable to explain the observed effects of semantic and phonological relatedness. However, they are consistent with assumptions of nondiscrete models of lexical retrieval. In addition to the theoretical implications of this study, the observed effects of lexical context on word retrieval have implications for treatment of anomia.     

Changing men's male gender-role attitudes by applying the elaboration likelihood model of attitude change

The traditional male gender role has been associated with a host of psychological and physical problems. In this study, 118 male university students viewed one of two videotaped interventions based on R. E. Petty and J. T. Cacioppo's [(1986) Communication and Persuasion: Central and Peripheral Routes to Attitude Change, New York: Springer-Verlag) elaboration likelihood model of attitude change (ELM) or were in a control group. One intervention was designed to create less traditional male gender-role attitudes, the other to enhance participants' attitudes toward seeking psychological help. Both interventions significantly changed male gender-role attitudes on Brannon Masculinity Scale scores, but not their Gender Role Conflict Scale—I scores, and neither influenced help-seeking attitudes. The overall pattern of scores suggests that men's attitudes about the male role may be less resistant to change than attitudes about one's own gender role or one's fear of femininity.     

Identification with aggression vs. turning against the self: An empirical study of turn-of-the-century European Jewish humor

Self-directed demeaning ethnic humor is hypothesized to represent either a means of self-deprecation or a stance of disidentifying with one’s own group of origin. Compendia of published Yiddish humor were examined to empirically test competing conceptualizations of Jewish wit. Results are analyzed in the context of the social milieu of the publication samples.     

The Correlation Between Depression and Headache: The Role Played by Generational Changes in Female Achievement

The relationship between depression and somatic symptoms such as headache has never been explained. Both depression and headache appear to become more prevalent among women than among men only for cohorts that reach adolescence during periods of great change in opportunities for a female's academic achievement. In Studies 1a and 1b, the same pattern was found to apply to the correlation between depression and headache. In Studies 2a and 2b, self-report measures of depression and headache were found to share significant variance only among female adolescents who reported concerns regarding the limited achievements of their mothers. These females may view the roles of adult women as being limited and may experience stress and low self-esteem associated with depressive and somatic symptomatology.     

Childhood abuse and spiritual development among women religious

Childhood abuse is known to have a negative influence on human development. This study expected to find a spiritual attitude of acceptance, as measured by the Ego Grasping Orientation scale, would help mitigate effects of childhood abuse in the realm of spiritual development. Spiritual Experience Index (SEI) scores for 350 religious women were treated as a measure of spiritual maturity. Contrary to expectation, however, the sexually and the physically abused groups with a more accepting attitude scored lower on the SEI than the abused with a more controlling attitude and the nonabused. Implications for spiritual development and well-being are discussed.     

Stereotypes about children with traditional and nontraditional gender roles

Two studies were done to assess different aspects of gender stereotypes about traditional and nontraditional girls and boys. In Study 1, 81 undergraduates (57 females, 24 males; 88% Caucasian, 12% Asian) rated the typicality and desirability of 25 personality traits and behaviors for boys and girls. Analyses showed that this sample believed that typical girls and boys differ on 24 out of the 25 behaviors and traits. There were fewer differences when they rated the desirability of the characteristics for each sex. In Study 2, 154 undergraduates (97 females, 57 males, 82% Caucasian, 18% Asian) estimated the percentage of occurrence of 26 traits and behaviors in traditional and nontraditional girls and boys (i.e., tomboys and sissies). These estimates were used to determine two aspects of stereotypes: the characteristics that are perceived to occur most often in a group and the characteristics that are particularly distinctive for a group. Again, stereotypes of girls and boys were found to be extensive. Percentage estimates, however, illustrated that stereotypes are probabilistic in that many boys and girls are believed to have both masculine and feminine characteristics. Stereotypes of nontraditional children were compared to stereotypes of traditional children. Analyses showed that tomboys were stereotyped similarly to traditional boys but sissies were not stereotyped similarly to traditional girls. Instead, the sissy stereotype was found to be very narrow. The advantage of using a variety of assessments methods is discussed.     

Gender differences in depressive symptomatology: The role played by “anxious somatic depression” associated with gender-related achievement concerns

In the studies reported here, females were more likely than males to report high levels of depression accompanied by anxiety and somatic symptomatology such as disordered eating and headache, but not more likely to report depression unaccompanied by these symptoms. This gender difference in depression prevalence and the symptomatology associated with depression was due to a subgroup of females who scored high on scales comprised of items measuring concerns about the limitations placed on their achievement (sample item: “More people would pay attention to my ideas if I were male”) or on their mothers (sample: “When you were growing up, how much did your mother feel limited by being female?”) due to responses to their gender.