The generalized optic acceleration cancellation theory of catching

The generalized optic acceleration cancellation (GOAC) theory of catching proposes that the path of a fielder running to catch a ball is determined by the attempt to satisfy 2 independent constraints. The 1st is to keep the angle of elevation of gaze to the ball increasing at a decreasing rate. The 2nd is to control the rate of horizontal rotation necessary to maintain fixation on the ball. Depending on the lateral velocity of the ball relative to the fielder, this rate may be zero or constant at a negative or positive value. The authors show that a simulated fielder implementing the GOAC strategy follows a path indistinguishable from that of real fielders running to catch balls thrown on the same trajectories.     

Autobiographical memory deficits in schizophrenia

This study investigated autobiographical memory processes in a group of individuals diagnosed with schizophrenia and matched controls. The schizophrenia group displayed an overgeneral style of autobiographical memory retrieval on two widely used measures, and displayed problems retrieving both autobiographical facts and events. They showed a specific impairment in the recall of autobiographical events and facts in early adulthood, around the time of onset of their illness. Retrieval deficits were independent of mood state and premorbid intellectual functioning. The magnitude of the deficits in autobiographical memory retrieval specificity were considerably greater than any general impairments in episodic and working memory.     

Contributors

The ‘imagined community’ (famously defined by Benedict Anderson) could not be created out of nothing. It built upon previously existing identities. And though nineteenth-century nationalism is often seen as essentially secular, the most powerful of these identities were frequently religious. Indeed the clergy often played a major role in promoting a national consciousness. While a ‘national church’ readily saw itself as the embodiment of the nation’s past history, present identity and future aspirations, religious minorities usually had a more ambivalent relationship with a nationalism that was always in some degree exclusive. And even in the case of a ‘national church’, the interests of politicians and ecclesiastics were not always the same. Moreover some nineteenth-century nationalisms were defined in ways to which religion was largely irrelevant, or were in explicit opposition to the Catholic Church. Nonetheless, in ways that varied in kind and degree from country to country, nationalism and Christianity came to be intertwined in nineteenth-century Europe. National identities were to an important degree defined by reference to specific Christian traditions, their history, their forms of worship, and their heroic figures. At the same time nationalism often came to be seen as an integral part of Christianity. Readiness to die for the motherland was presented as a Christian duty and, in particular, Christian preachers of this era were strongly influenced by the concept of a God-given national mission, which justified nationalist claims and might sometimes justify war.     

Book review

GALLISTEL, C. R. The Organization of Action. Hillsdale, N. J.: Erlbaum Associates. 1980. Pp. 432. ISBN 0 470 26912 X.     

Qualitative approaches to research in counselling and psychotherapy: Issues and challenges

There has been a significant growth in interest in qualitative approaches to research in counselling and psychotherapy. Qualitative researchers in this field have begun to apply methods originally developed in disciplines such as sociology, anthropology and cultural studies. There are, however, a number of distinctive dilemmas and challenges associated with qualitative approaches to inquiry into the processes and outcomes of counselling. A set of key issues are discussed: relationships with research participants, ethics, reflexivity, methodological choice, communicability, perspective and obviousness. Some suggestions are made regarding the link between qualitative research and counselling practice.     

The Role of Family Support in Interparental Conflict and Adolescent Academic Achievement

Family support was examined as a mediator of the relation between interparental conflict and adolescent academic achievement. Results indicated that two dimensions of family support, family cohesion and parent–school involvement, mediated the relation between interparental conflict and academic achievement. The results further suggested that family support was more likely to function as a mediator for girls than for boys. Lastly, in the presence of a mediating effect, a direct path remained between interparental conflict and grade point average.