Evidence of rapid recovery from perceptual odor adaptation using a new stimulus paradigm

By attenuating neural and perceptual responses to sustained stimulation, adaptation enhances the detection of new, transient stimuli. Disadaptation serves a similarly important role as a temporal filter for chemoreceptor cells, producing rapid recovery of sensitivity upon termination of the adapting odorant. Previous research from our laboratory indicated that a rapid form of odor adaptation can be measured using a novel, simultaneous-odorant paradigm. In the present study, we extended the earlier method by measuring recovery from adaptation. Perceptual odor adaptation was measured by estimating psychophysical detection thresholds in a group of college-aged student volunteers (N = 20; 12 females, eight males) for a self-adapting odorant, vanilla extract. To induce adaptation, the time between the onset of the adapting odorant and the onset of the target odorant was systematically varied. By first quantifying adaptation, recovery of sensitivity could therefore be investigated by using different time points following the termination of the adapting odorant. Consistent with our previous work, thresholds estimated in the presence of the simultaneous adapting odorant were significantly increased, reflecting a decrease in sensitivity due to adaptation. Conversely, approximately 100 ms following termination of the adapting stimulus (the briefest delay tested), sensitivity began to rapidly recover. Nevertheless, some residual adaptation was evident at the longest offset delay of 500 ms. These findings suggest that the recovery from adaptation proceeds at least as rapidly as the onset of adaptation, a finding that is consistent with physiological evidence from olfactory receptors. These data also suggest the effectiveness of this new odorant paradigm in characterizing the temporal characteristics underlying these critical olfactory mechanisms.     

When Declaring ��I am a Feminist�� Matters: Labeling is Linked to Activism

Being a feminist has been operationalized as a label (linked with activism), beliefs (associated with personal and interpersonal outcomes), and their combination. Using an internet survey completed by 220 American mid-western college women, we explored the unique and combined impact of feminist self-labeling with feminist beliefs on women??s well-being, egalitarianism, and activism. Self-labeling was most clearly defined as a binary declaration of being a feminist or not, which alone was related to increased feminist activism above and beyond the impact of feminist beliefs. Furthermore, self-labeling, unlike feminist beliefs, was not related to personal well-being or interpersonal egalitarianism. Our findings confirm the exclusive and singular importance of self-labeling for enhanced feminist action.     

An Evaluation of the Psychometric Properties of the Womanist Identity Attitudes Scale

Responses from 101 African American/Black and 100 White women were used to examine the psychometric properties of the Womanist Identity Attitudes Scale (WIAS; Ossana, 1986; Ossana, Helms, & Leonard, 1992). First, internal consistency reliabilities suggested the need for further development of 3 of the 4 WIAS subscales. Second, links between WIAS scores and (a) sexist, (b) hostile sexist attitudes toward women, (c) benevolently sexist attitudes toward women, and (d) egalitarian attitudes toward women's rights and roles provided mixed support for the convergent validity of the WIAS. Third, consistent with theoretical conceptualization, the intercorrelations among WIAS subscales were similar for African American/Black and White women. These intercorrelations, however, were not entirely consistent with the theorized developmental process of the womanist identity model. Finally, the structural validity of the WIAS was examined using confirmatory and exploratory factor-analytic procedures. Both sets of analyses challenged the fit of the theorized womanist identity development model with data produced by the WIAS.     

Exploring Moderators of Gender Differences: Contextual Differences in Door‐Hoiding Behavior1

The simple behavior of holding a door for another person can be interpreted as gender‐neutral, helpful, or benevolently sexist. Each interpretation leads to competing hypotheses predicting no gender differences in door holding, consistent door holding by men as chivalrous helpers, and door holding by men in the gender‐salient context of dating but not in everyday interactions, respectively. Observations of 769 college‐aged, female‐male dyads found a strong pattern of male door holding in dating but not in everyday contexts. This pattern highlights social role theory's emphasis on understanding contextual moderators of apparent gender differences, changes in door‐holding behavior in everyday contexts across the past 20 years, and the benevolent sexism subtly conveyed by male dominance in door holding in dating contexts.     

Family economic pressure and adolescent suicidal ideation: application of the family stress model

This study used a sample of 501 families from the Mississippi Delta region to examine the feasibility of the Family Stress Model for understanding adolescent suicidal ideation. The results indicated that family economic pressure was related to parental depressive symptoms, which, in turn, was related to parental hostile behavior and physical abuse. These parental behaviors were related to adolescent self-esteem and depressive symptoms, which, in turn, were related to adolescent suicidal ideation. Therefore, family economic pressure and parental depressive symptoms and behaviors were indirectly related to adolescent suicidal ideation. The results indicate the applicability of the Family Stress Model for understanding adolescent suicidal ideation.     

Community recognition of objective and subjective characteristics of depression

Assessed knowledge of depression in a random sample of 527 community-living adults. Vignettes were presented which described a young or old protagonist with depressive symptoms. Respondents were asked to identify potential problems and possible solutions. A depression information measure followed. Results indicated that community residents were aware of many objective features of depression although they identified less information about treatment issues. Older respondents were least informed. Although there were no gender differences in objective knowledge, men were less likely to mention depression with regard to the vignettes. Suggestions for implementing more effective community interventions are discussed.     

The funeral meal: A significant funerary ritual

Historically, a meal in association with funerary ritual has been a reality in many cultural and religious settings. Our society has experienced a gradual demise of formal funerary ritual, with an accompanying psychological and social impoverishment. Both the immediate bereaved and the larger social community can benefit from a funeral meal which functions as a group experience that focuses on the needs of the living. It can be a shared experience in a familiar structured setting which enables the living to do significant grief work. Practical implications and potential problems will need to be, taken into consideration.     

THE PSYCHOLOGY OF WOMEN AND CONSERVATISM

Although one goal of the psychology of women has been to enhance the status of women through social change, this goal has seldom been realized. Theory and research in the psychology of women have focused on gender differences and the personality of women rather than the society that oppresses women. As a result, this research has tended to blame women for their position in society and helped maintain the status quo, which can inhibit the struggle for equality by the women's movement. This process is demonstrated with reference to research on women and achievement. The causes and consequences of the focus on gender differences are discussed and recommendations made for a psychology of women in the service of women.     

Gendered norms for family size, employment, and occupation: Are there personal costs for violating them?

The present study investigated gendered stereotypes involving women’s family size, employment, and occupation. Eleven ratings of targets’ social and personality characteristics were ascribed by 400 undergraduates to a hypothetical married woman described as voluntarily childfree or the mother of one, two, or eight children, and as nonemployed or employed either part or full time in either a gender-appropriate or gender-inappropriate occupation. Women employed in gender-atypical occupations were considered less expressive and were socially distanced, but this factor did not interact with family size. Two-children mothers were regarded favorably as was employment. Prior findings denigrating single-child mothers and glorifying eight-children mothers were not replicated—both groups were rated similar to normative, two-children mothers. Consistent with prior research, childfree women were evaluated least favorably. Findings suggest that norms regarding both family size (two children) and employment exist among contemporary college students. The authors thank Pauline Beres for her help with data collection and entry. This paper was presented at the meeting of the American Psychological Association in New York in 1995.