Vibrotactile pattern discrimination and communality at several body sites

In a series of experiments, the effects of spatial layout on vibrotactile pattern perception were explored by testing the ability to discriminate between two sequentially presented patterns that share active elements in the same spatial locations. Two-dimensional displays were used in order to examine the functional relationship between discrimination performance and patterncommunality, defined as the sharing elements, on different body sites. Accuracy of discrimination judgments was inversely proportional to communality, regardless of the number of pattern elements. For compact arrays fitted to the finger, palm, and thigh, the effects of communality appeared equivalent. The similarity between finger and thigh functions is remarkable, considering the dramatic differences between these sites in receptor components and structure. When these data were compared with those from arrays with distributed contactors, performance was substantially better with well-separated pattern elements. Such findings help to explicate how information from apposed patterns can best be delivered to the skin through tactile communication systems.     

Book reviews

Integrative Psychological and Behavioral Science -     

My place,your place,and no place: Behavior settings as a risk factor for HIV-related injection practices of drug users in Baltimore,Maryland

Information is sparse on the social context of illicit drug injection behaviors and their relationship to HIV infection. This study examined relationships between injection settings, injecting with others, and HIV risk behaviors of sharing needles and not cleaning contaminated needles in a sample of 630 inner-city injecting drug users in Baltimore, MD. Through open-ended interviews, five primary settings of injection behavior were identified. These settings included one's own, friends' and mother's residence, shooting galleries, and semipublic areas. Most participants reported injecting in their own residence (92%) and friends' residence (86%) in the prior 6 months. In a multiple regression analysis, injecting at friends' residence, in shooting galleries, and in semipublic areas and frequency of injecting with others were significantly associated with frequency of sharing uncleaned needles, “slipping” (i.e., failure to disinfect shared needles), and not always cleaning used needles before injecting. Results suggest that interventions may benefit from targeting settings as well as behaviors to reduce the spread of HIV. This research was supported by grants DA04334, DA05911, DA06313, and DA08985 from the National Institute on Drug Abuse.     

“Subordination” and sensitivity to nonverbal cues: A study of married working women

Sex Roles - Women's superiority in decoding nonverbal cues of emotion has often been discussed as an adaptation to low status. To examine the relation of status to nonverbal sensitivity,...     

Interpersonal Correlates of Narcissism in Adolescents

Researchers investigated the relationship between measures of interpersonal behavior and narcissism. Eight octant measures of interpersonal behavior were constructed, and validity and reliability estimates were obtained. High school and junior high school students (N = 333) completed five measures of narcissistic vulnerability, eight octant measures of interpersonal behavior, and a measure of social desirability. Canonical correlational analysis indicated a specific pattern of interpersonal behaviors for individuals with differing levels and types of narcissistic vulnerability. A multivariate analysis of variance (MANOVA) indicated that scores on several of the scales were found to differ significantly by sex and by treatment for emotional, behavioral, or educational difficulties. Implications for counseling are considered.     

The relationship between qualitative and quantitative research: Lessons from feminist psychology

The dominant methodological approach in psychological research has involved the use of quantitative methods within a positivist framework. In this article we argue that both qualitative and quantitative methods have their strengths and limitations, depending on the research question under investigation. We examine some of the advantages of qualitative methods, paying particular attention to the value of such methods for feminist researchers. We challenge the positivist assumption that all research should be apolitical and value-free, arguing that the political context in which all research studies take place plays an important role in decisions about the appropriate research methods to use. Despite the value attached to qualitative methods by feminist researchers, there may be projects for which quantitative methods, or a combination of qualitative and quantitative techniques, are more suitable. We draw on examples from our research on the transition from school to the job market for young people, and a study of 16- to 19-year-old first time mothers to illustrate these points, examining the practical implications of our arguments for applied social psychology research.     

Anger of women incest survivors

Adult women survivors of incest (n = 68) were compared to other women (n = 93) with respect to several questionnaire measures of manifest anger. The vast majority of the research participants were white, middle class, heterosexual, and Michigan residents. Incest survivors were angrier than other women, both in general and at their parents. Anger toward mother and anger toward father were comparable. Few incest survivors blamed either parent for the incest, except in those speciflc cases where the parent was a perpetrator. Not surprisingly, incest survivors were particularly angry at parent perpetrators when they were held responsible for the abuse. Incest occurred in families where other traumas were present, and the extent of these other traumas was also associated with increased anger at parents. Women who identified with feminism and who had participated in therapy were angrier at their parents than were other women. Therapy implications of these results were discussed.This paper is based on a doctoral dissertation submitted to the University of Michigan by the first author, under the supervision of the second author. The help and encouragement of committee members Margaret Buttenheim, Kathleen Faller, and Sheryl Olson are gratefully acknowledged. Howard Gottlieb, Judith Ballou, Donna Silbert, and Robert Daniels also contributed substantially to this research.Financial support was provided by the Society for the Psychological Study of Social Issues, the Horace D. Rackham School of Graduate Studies, and the Department of Psychology at the University of Michigan.     

Gender,Interpersonal Orientation,and manipulation tactic use in close relationships

Investigations have focused on influence tactic pattern use in relation to socialized power differences due to gender. We carried Swap and Rubin's (1987) Interpersonal Orientation (IO) variable into the Buss, Gomes, Higgins, & Lauterbach (1987) framework for manipulation tactic use. Subjects were male and female undergraduates (N= 53) who scored either in the upper or lower quartiles of the IO scale. At testing, high and low IO subjects completed a demographic questionnaire and the Manipulation Tactics index with regard to a close, opposite-sex friend. We found that high IO females reported more frequent use of manipulation tactics than low IO females. Males' reported use of manipulation tactics was unrelated to their IO status. The results were discussed in terms of possible adaptive patterns developed by females to deal with perceived chronic powerlessness.