The contribution of EEG coherence to the investigation of language

The contribution of EEG coherence analysis to the investigation of cognition and, in particular, language processing is demonstrated with examples of recent EEG studies. The concept of EEG coherence analysis is explained, and its importance emphasized in the light of recent neurobiological findings on frequency-dependent synchrony as a code of information processing between nerve cell assemblies. Furthermore, EEG coherence studies on naturally spoken and written word and sentence processing are reviewed and experimental results are presented giving new insights into the occurrence of "transient functional language centers" within the brain.     

A comparison of maladaptive behaviors of athletes and nonathletes.

A comparison of maladaptive behavior tendencies of men and women who were athletes and nonathletes was undertaken. Participating students (N = 200) were divided into four groups: male athletes, male nonathletes, female athletes, and female nonathletes. Maladaptive behavior tendencies were determined from responses on C. MacAndrew's (1965) Alcoholism Scale. The statistical analysis used was an independent groups 2 x 2 analysis of variance to determine significant main effects and interaction effects. The mean maladaptive behavior score (MBS) for athletes (M = 21.87) was significantly higher (p < .05) than the MBS for nonathletes (M = 20.24). The MBS for the men (M = 21.68) was significantly higher (p < .05) than the MBS for the women (M = 20.43). No significant interaction (p > .05) between gender and athletic status was found. Male athletes are more likely than the other 3 groups to have maladaptive behavior tendencies. Research directed toward greater understanding and the development of preventive and coping techniques for this population is needed.     

Reading/writing between the lines

This paper critically examines the practices of reading and writing through the differing perspectives offered by Kierkegaard, Sartre, Barthes, Foucault, and Derrida. Although Kierkegaard's and Sartre's respective views on reading and writing do not receive much attention today, I argue that both articulate (albeit in different ways) a notion of shared responsibility between reader and writer that is compatible with their respective emphases on absolute responsibility for oneself, for others, and for the situation. An advantage to both Sartre's and Kierkegaard's accounts from a postmodern perspective, is that they affirm the simultaneity of individual and co-responsibility without appealing to a fixed or unitary self.     

SELECTIVE ASSOCIATIONS PRODUCED SOLELY WITH APPETITIVE CONTINGENCIES: THE STIMULUS-REINFORCER INTERACTION REVISITED

In studies reporting stimulus-reinforcer interactions in traditional conditioning paradigms, when a tone-light compound was associated with food the light gained stimulus control, but when the compound was paired with shock avoidance the tone gained control. However, the physical nature of the reinforcerrelated events (food vs. shock) presented in the presence of the tone-light compound was always confounded with the conditioned hedonic value of the compound's presence relative to its absence. When the compound was paired with shock, its presence was negative relative to its absence (which was shock-free). In contrast, when the compound was paired with food, its presence was positive relative to its absence (which was food-free). The present experiment dealt with this confounding effect by conditioning a tone-light compound to be positive or negative, relative to its absence, solely with food reinforcement. One group of rats received food for responding in the presence of the tone-light compound and no food in its absence. The other group also responded in the presence of the compound, but received food only in its absence. These rats were trained on a chained schedule in which responding in the presence of the tone-light compound produced a terminal link signaled by the absence of the compound; responding ceased in the terminal link because it delayed food delivery. In a test session to assess stimulus control by the elements of the compound, tone and light were presented separately under extinction conditions. Rats that had been exposed to a positive correlation between food and the compound emitted almost double the responses in the presence of the light as in the presence of the tone. In comparison, rats that had been exposed to a negative correlation emitted only two thirds as many responses in the presence of the light as in the presence of the tone. Because this selective association was produced using only food, it appears that the contingencies under which a reinforcer is presented, rather than (or as well as) its physical properties, can generate the selective associations previously attributed to “stimulus-reinforcer interactions.” This could mean that regardless of the class of reinforcer that ultimately maintains responding (appetitive or aversive), the contingency-generated hedonic value of the compound stimulus may influence the dominant modality of stimulus control.     

The human genome project: A public forum. Report on a model conference for genetics professionals and consumers

This paper reports on the rationale, objectives, and outcome of a conference titled The Human Genome Project: A Public Forum. One of the distinguishing features of this conference was that it included both genetics professionals and consumers of genetics services in a dialogue about the potential ethical, legal, and social implications of learning more about one's genes. The conference was planned to yield two products: (1) a set of recommendations for planners of future educational, research, and public policy efforts related to the Human Genome Project; and (2) an assessment of participants' pre- and post-conference knowledge and opinions about the Human Genome Project.     

Theory-based screening for prevention: Focusing on mediating processes in children of divorce

Prevention programs in mental health theoretically can benefit from selecting participants who have a greater likelihood of developing psychological problems because of their exposure to the putative mediators targeted for change in an intervention. Screening on mediators may increase statistical power to detect program effects, enhance the cost-effectiveness of intervention trials, and decrease the possibility of iatrogenic effects. The circumstances that optimize the strategy of screening on the basis of mediating variables are discussed, and data are presented to illustrate the development of a mediational selection strategy to identify families who might best benefit from a preventive intervention for children of divorce. In addition, we present evidence that adjustment problems for children experiencing a divorce, as with most mental health problems, are not the result of one specific factor, but are jointly determined by several mediating processes that occur subsequent to the divorce. The mediational selection strategy developed illustrates the utility of measuring a set of mediational processes central to conferring risk for mental health problems to children of divorce.     

Postpartum depression: Proposal for prevention through an integrated care and support network

Social science research and clinical literature concur with our experience as providers of psychoeducational and clinical services: Postpartum depression results from the interplay of a multitude of individual and contextual factors. In light of the extensive literature on postpartum depression, it is surprising that models for prevention have not been established. We propose a model for prevention through integrated care and support, in which a wide range of existing services are used. This model is similar to comprehensive prevention models proposed by advocates of integrated service systems, such as community mental health and family support. The article includes illustrative case material.     

Cognitive modifiability as a function of mother–child mediated learning strategies,mothers' acceptance–rejection,and children's personality

This study investigated (a) the effects of mediated learning experience (MLE) in mother–child interactions on cognitive modifiability as measured by dynamic assessment, (b) the effects of mothers' acceptance–rejection towards their children and the children's personality on the mothers' MLE strategies, (c) the combined effects of the mothers' acceptance–rejection, children's personality, and MLE strategies on children's cognitive modifiability, and (d) the prediction of cognitive modifiability by MLE interactions in two distinct conditions: free-play and structured. Fifty-four mother–child dyads (26 boys and 28 girls) in grade 2 were videotaped interacting in two situations: free-play and structured. The interactions were analysed with observation of mediation instrument using five criteria: intentionality and reciprocity, transcendence, meaning, feelings of competence, and regulation of behaviour. The children were administered the parent acceptance–rejection questionnaire, the personality assessment questionnaire, and the children's inferential thinking modifiability test. A distal–proximal factors of cognitive modifiability model was used to explain causal paths among mothers' acceptance–rejection and children's personality (distal) on MLE (proximal), and of both on children's cognitive modifiability. A structural equation model analysis revealed that (a) all MLE criteria were predicted by the distal factors of mothers' acceptance–rejection and children's personality, (b) none of the mothers' attitudes or children's personality factors explained the children's cognitive factors, (c) MLE criteria of transcendence and regulation of behaviour explained the children's CITM-post-teaching score but not the CITM-pre-teaching score. The results are discussed in relation to Feuerstein's MLE theory and Tzuriel's previous results with preschool children. © 1998 John Wiley & Sons, Ltd.