Effect of mental imagery on realizing affordances

Using a reaction time experiment, we examined whether imagining a response would lead to an increase in the frequency of its execution. During a pre-test and a post-test, participants had to respond as quickly as possible with either their left or their right hand, as they preferred, to the illumination of one of 17 target positions arrayed in front of them in a semicircle. Between these two phases, participants performed a practice condition. Each of 40 right-handed participants was assigned to one of four groups that differed in their practice condition: One group made only dominant-hand responses to all target locations, two imagery groups imagined dominant hand responses to all target locations, and the last group received a no-practice, control task. One imagery group received instructions emphasizing that imagery has a strong effect; the second group received instructions suggesting that imagery was not effective. The results showed an increased incidence of the practised response for both imagery groups during the post-test. No effect was found for the physical performance group and the control group. The change in performance for the imagery groups was not accompanied by a change in reaction time. The results are discussed in terms of imagining the realization of action possibilities and from a neuropsychological point of view.     

Why safety doesn’t save closure

Knowledge closure is, roughly, the following claim:

For every agent S and propositions P and Q, if S knows P, knows that P implies Q, and believes Q because it is so implied, then S knows Q.     

Cognitive Social Learning Variables and the Characteristics of Leaders1

This study explored the potential of a person × situation approach to identifying the characteristics of leaders in a voluntary community organization. A set of variables based on Mischel's “cognitive social learning variables” was operationalized to provide variables which assess the characteristics of individuals in relation to the specific context in which some emerge as leaders. This set of variables was compared with a larger set of traditional demographic and personality variables. Analyses indicated the approximate statistical comparability of the two sets. Advantages of the cognitive social learning approach for understanding and intervening in leader emergence and development in voluntary community organizations are discussed.     

Family interaction patterns and childhood depression

Rehm's (1977) self-control model for depression and Bandura's (1977) concept that children internalize external controls placed upon them are united to predict family interaction patterns that may contribute to the etiology or maintenance of depression in children. Families of depressed, nondepressed, and nonclinic children were compared on rates of, and criteria for, parental and self-reinforcement. Mother-father-child interactions were sequentially coded to reveal that mothers of depressed and nonclinic children both set very high criteria for rewarding their children, compared to mothers of clinic/nondepressed children. However, mothers of depressed children rewarded their depressed children at much lower rates than mothers of either clinic/nondepressed or nonclinic children. These factors, taken together, are discussed in terms of their possible etiological role in childhood depression.     

EAST AND WEST IN THE FACE OF TECHNOLOGICAL CHANGE

Abstract. Technological changes affect Western culture in three ways: the ratio between the lifetimes of technologies and the human lifetime is inverted; the three principal realms of human life (the home, the workplace, and leisure activity), as well as political systems, are affected; and the cohesion of the social body is threatened. The impact on Eastern culture is softened by a clearer role assigned to school, the resulting level of education, and the influence of Confucian ethics. However, acculturation will vary among countries, depending on the communication ability in the respective societies and the degree of development of social cellular structures, which are the most able to manage complexity.     

A revised teacher rating scale for Reactive and Proactive Aggression

A teacher rating scale of reactive aggression, proactive aggression, and covert antisocial behavior was evaluated in a normative sample of third- to fifth-grade predominantly white lower middle class boys (N= 186). Factor analysis revealed independent and internally consistent Reactive Aggression (six reactive items), and Proactive Aggression (five proactive items, five covert items) factors. Although the factors were intercorrelated (r= .67), and each factor was significantly correlated with negative peer social status (r= .26 for each, controlling for grade), the independence of the factors was supported by the unique relation of Reactive Aggression with in-school detentions (r= .31), controlling for Proactive Aggression and grade. These results supported the reliability and validity of Reactive and Proactive Aggression as rated by teachers, which should facilitate further research of these constructs. This research was supported in part by an NIMH First Award to Marc Atkins (MH4682), and support from an NICHD Mental Retardation Research Center Core Center Grant (DH26979). Portions of these data were presented at the annual meeting of the Society for Research in Child and Adolescent Psychopathology, Sarasota, Florida, in February 1992. The authors are grateful to Paul McDermott and Tom Power for editorial comments, and to Gail Apfel, principal, and the teachers, staff, and students of Stonehurst Elementary School for their enthusiastic participation in this research.     

Paul Virilio and the articulation of post-reality

This article provides an introductory overview of the theories of Paul Virilio, particularly regarding how technologically-enhanced speed impacts human reality. It positions Virilio as part modernist, part postmodernist and discusses how his ethico-political views color his more aesthetic metaphysics, creating a tension in his final position on the merits of technological speed's blurring of the real and the imaginary. It concludes by contrasting Virilio's position with some comments on aesthetics by Ludwig Wittgenstein.     

Stress, Performance, and Organizational Cultures

This study concentrates on some issues concerning the origins and developmental patterns of salutogenesis, i.e., health fostering coping style. First, we identify a number of environmental factors reportedly connected to successful coping with stress. Then we describe a method with which we can analyze team cultures and identify cultural factors related to team health. Finally, we present some results that we obtained while testing this method on several teams of middle management in an industrial enterprise. These results suggest that an “and–and” approach to coordination of actions (as opposed to an “or–or” approach), and a clear awareness of the value of specialized contributions to the total outcome play a significant role in improving the well-being of teams.     

Forced compliance: Commitment to compliance and commitment to activity

It is argued that the standard manipulation of free choice in a forced compliance situation has fostered confusion between the two different types of choices offered to subjects, namely commitment or non-commitment to compliance with the experimenter and choice of counter-attitudinal activity per se. From a theoretical viewpoint, the two choices have very different implications. The former is a prerequisite to dissonance arousal; the latter may bring about consonant cognitions which reduce the dissonance ratio. Two experiments which separated these two choices confirmed the above predictions, derived from a radical conception of the dissonance theory (Beauvois and Joule, 1981, 1994). The results are inconsistent with the reinterpretation of dissonance effects in self-perception terms.