The role of self-to-object updating in orientation-free performance on spatial-memory tasks

A single view of a room-sized path produces an orientation-specific memory representation, yet when memory is tested at a location on the path, orientation-free performance is observed. Either a virtual-views or an updating hypothesis can account for orientation-free performance by attributing it, respectively, to an orientation-free long-term-memory representation or to a working-memory representation of the body's updated location relative to the path. Experiments 1 and 2 test these hypotheses by manipulating the test-site location and the complexity of the trajectory from the study site to the test site. Experiment 3 tests orientation to the test space as a function of trajectory complexity. Results support a virtual-views explanation for the orientation-free performance of males and an updating explanation for females.     

Allocentric coding of object-to-object relations in overlearned and novel environments

R. F. Wang and E. S. Spelke's (2000) finding that disorientation disrupts knowledge is consistent with egocentric but not allocentric coding of object location. The present experiments tested the hypothesis that egocentric coding may dominate early on but that once an allocentric representation is established, then target location is retrieved from it. This hypothesis predicts that disorientation will disrupt configuration knowledge in a novel environment, such as that used by Wang and Spelke, but not in an overlearned environment. Experiments 1 and 2 tested whether disorientation disrupted configuration knowledge of an overlearned environment, and Experiments 3-7 tested whether disorientation disrupted configuration knowledge of a novel, room-sized environment. In none of the experiments did disorientation disrupt configuration knowledge. Hence, in addition to showing allocentric coding of overlearned interlandmark relations, the present findings are consistent with the immediate availability of allocentric location codes in a novel, room-sized environment.     

Working 61 plus hours a week: why do managers do it?

The authors investigated why some managers work extreme hours, defined as 61 or more hours per week. The authors tested explanations drawn from theories including the work-leisure tradeoff, work as an emotional respite, social contagion, and work as its own reward. In a demographically homogeneous sample of male managers, the best explanations for why some worked 61 or more hours per week were the financial and psychological rewards they received from doing so. The hypothesis derived from A. Hochschild's (1997) research that managers who work long hours seek relief at work from pressures at home was not supported. Findings in a small sample of managerial women were consistent with the work-leisure trade-off hypothesis, the social contagion hypothesis, and the work as its own reward hypothesis.     

Design and use of a U.S. census data computer laboratory for teaching undergraduate research methods

This paper discusses the design and development of an interdisciplinary social science computer laboratory for teaching undergraduate research methods courses and research components of applied and theoretical courses. The U.S. Census of the Population, a database commonly used in all of the social sciences, is used in order to give students research experience and to avoid ethical problems involved in working with animal and human subjects in an undergraduate course. Some issues in laboratory design and required changes in teaching methods are discussed.     

BRCA1 Testing: Genetic Counseling Protocol Development and Counseling Issues

This article discusses the genetic counseling protocols which were developed and counseling issues that have arisen in the first 2 years of evaluating a large kindred with a BRCA1 mutation. The rationale for the development of the genetic counseling protocols and specific genetic counseling visual aids are presented and discussed. The protocols and counseling aids can serve as models for other programs offering cancer susceptibility testing. The observations of study counselors about study subject concerns and responses to genetic testing at the time of the pretest and posttest counseling sessions are presented.     

Perspectives on achieving via interpersonal competition between college men and college women

The beliefs of college students about (a) choices they would make when presented with opportunities to achieve by competing with persons of the other gender and (b) the consequences of such achievement choices were assessed. Drawn from a population of predominantly upper middle-class students, with a minority enrollment of 14.7%, 83 men and 84 women were presented with vignettes which depicted (a) either a challenge for a first violin in an orchestra or a Ping-Pong match at a party and (b) events related to the opportunity to become class valedictorian. Multivariate analytic techniques were employed, and overall the results indicated that men seemed less willing than women to compete against the other gender, and women seemed to view the consequences about such competition as more positive than men. In the violin and Ping-Pong vignettes, men indicated that they, more than women, would be criticized for playing to win and that, if a woman played to win, her male opponent would feel more ridiculed than respected. In the valedictorian vignette, women indicated that men who decided to compete would feel more pleasure than guilt, whereas women who decided to compete would feel more guilt than pleasure. The results are discussed in terms of conceptualizing achievement choices as more situational than static or gender linked.The authors wish to thank David A. Cole, University of Notre Dame, for statistical advice, Chau T. Wong, University of Notre Dame, for assistance in data analysis, Kathleen L. Davis, University of Tennessee, and Michael J. Patton, University of Missouri, for reading and commenting on early versions of this paper and undergraduates from the University of Notre Dame for working on this project.     

Siblings of children with mental retardation: Family characteristics and adjustment

Siblings of children with mental retardation may be at greater risk for adjustment problems because of family stress related to the needs of the child with mental retardation. Family dimensions were investigated to determine their relationship to sibling adjustment. Adjustment of 12 siblings of children with mental retardation was examined in relationship to family dimensions. These relationships were compared to those for children from families without a disabled child. For both groups, self concept was positively associated with family cohesion, and social competence was positively associated with family promotion of independence. For only the siblings of the mentally retarded children, family conflict was inversely related to social competence, and family organization was positively related to sibling self concept. Our results suggest that family conflict and disorganization appear to have a more negative effect in families with a child with mental retardation.