Acquisition of cocaine self-administration with unsignaled delayed reinforcement in rhesus monkeys

Six experimentally naive rhesus monkeys produced 0.01 mg/kg/infusion cocaine by lever pressing under a tandem fixed-ratio 1 differential-reinforcement-of-other-behavior schedule. One lever press initiated an unsignaled 15- or 30-s delay culminating in cocaine delivery. Each press made during the delay reset the delay interval. With two exceptions, responding was acquired and maintained at higher rates than responding on a second (inoperative) lever. For the exceptions, a cancellation contingency was arranged in which each formerly inoperative-lever response reset the tandem schedule. This manipulation reduced presses on the inoperative lever. Subsequently, the consequences of responding on the two levers were reversed, and the monkeys again responded at higher rates on the operative lever. As a comparison, 3 additional experimentally naive monkeys received response-independent cocaine deliveries. Although lever pressing was observed, it extinguished and was subsequently reestablished under the tandem schedule. The results suggest that although response-reinforcer contiguity is not required for cocaine to acquire reinforcing functions, a response-reinforcer relation appears necessary.     

Stress, Rewards, and Change in the Centrality of Women’s Family and Work Roles: Mastery as a Mediator

Although research suggests that stress and rewards experienced in a social role are associated with changes in the centrality (or personal importance) of that role over time, little attention has been given to the mechanisms that account for this relationship. This study was conducted to examine change in role mastery as a mediator in the relationship between changes in role experiences (stress and rewards) and changes in centrality among 195 women who simultaneously occupied the roles of parent care provider, mother, wife, and employee. Regression analyses indicated that increases in parent care, mother, and employee stress eroded mastery in those roles. In addition, increases in rewards were associated with a bolstered sense of mastery in each of the four roles. Mastery was found to be a mediating mechanism in the relationship between stress/rewards and centrality in one of the four roles examined, the employee role. However, changes in womens perceptions of mastery were unrelated to the extent to which women changed the importance of their three family roles. These findings extend prior research by demonstrating that mastery is a mechanism through which stress and rewards are associated with centrality in the employee role.     

Schizophrenia and the experience of intersubjectivity as threat

Many with schizophrenia find social interactions a profound and terrifying threat to their sense of self. To better understand this we draw upon dialogical models of the self that suggest that those with schizophrenia have difficulty sustaining dialogues among diverse aspects of self. Because interpersonal exchanges solicit and evoke movement among diverse aspects of self, many with schizophrenia may consequently find those exchanges overwhelming, resulting in despair, the sensation of fusion with another, and/or self-dissolution. In short, compromised dialogical capacities may be a contributing factor to social dysfunction in schizophrenia.     

Childhood psychological maltreatment,sense of self,and PTSD symptoms in emerging adulthood

This study outlines the relationships among childhood psychological maltreatment (CPM), an understudied form of maltreatment, sense of self (SOS), a developmental construct negatively impacted by trauma, and post-traumatic stress disorder (PTSD) symptoms in emerging adults. Results from regression analysis on a sample of emerging adults (N = 358) indicated CPM to be the greatest predictor of a weaker SOS, even when considered alongside other types of child maltreatment. Among those exposed to CPM, SOS was a significant predictor of PTSD symptoms, explaining 34.1% of the variance in the outcome. Counseling interventions that focus on SOS during emerging adulthood are recommended as one important consideration for survivors of CPM who experience PTSD symptoms. Specific counseling practice and research implications are included.     

Labels and the Self: Identity Labels as Scaffold

This paper considers how labels may be used: “Neurodiverse,” “genderfluid,” “sex-positive,” “ADHD,” and “highly-sensitive” are just some of the labels that may be offered by patients in introducing themselves. Such labels can be thought of as shortcuts, a way to define identity and sum up a feeling state, attitude, or behaviour. While they may sometimes be “given” in the sense of a diagnosis, they are also “found” and self-adopted. Using scaffolding as a metaphor for allowing growth or development to take place (or compensate for its absence), the phenomenon of self-labelling is presented as fulfilling different functions, namely: Label as mirrored reflection; Label as creative defence; Label as something with which to play; Label as container for that which cannot yet be known; Label as calling something into being; and Label as collective dream image. The article starts with three brief composite clinical sketches, and goes on to explore some of the ways that labels may be used with reference to the presented clinical material.     

The Relationship of Developmental Tasks to Life Satisfaction, Moral Reasoning, and Occupational Attainment at Age 28

This study was conducted to empirically investigate the relationship of several developmental tasks to the developmental outcomes of Life Satisfaction, Moral Reasoning, and Occupational Attainment at age 28. Structured retrospective interviews of 62 Midwestern men and women in their late twenties were converted to variable scores and submitted to quantitative analyses. The results indicated differing patterns of influence on each of the outcomes, clarifying the relative importance of each developmental task, and also highlighting the multi-faceted nature of human development.     

Meetings: A Swampy Terrain for Adult Development

This article introduces a model of modes of experience as a tool for making sense of some of the complexity in meetings. Although derived from theories of adult development, the mode model presented here assumes that individuals are more internally diverse than they may appear through the lenses of some stage theories. The article includes vignettes of meetings in various organizational contexts to illustrate the dynamic nature of modes, and it suggests that an individual's psychological development may be fruitfully viewed in terms of both an evolving repertoire of modes, and a growing capacity to exercise judgment about when to shift and when to stay in a mode. Seen in the light of a mode model, meetings bring nearly continuous opportunities to foster collective creativity and constructive risk-taking. Constructive approaches to using modes are described, as well as risks, such as that of attempting to pigeonhole individuals. The concept of modes is best used as a background way of thinking and relating with the ultimate aim of fostering conditions that support organizational and individual development over the long term.     

The dynamic self

The paper describes various aspects of the dynamic energy of the self, as experienced personally and in clinical work. It discusses the inherent and archetypal force there is in the self, expressed in several ways, for example in some poetry, and in spirituality. The dynamic power of the self is shown at work in the process of individuation, including its vicissitudes of pain and working through doubts, envies and other shadow factors.     

Alcohol and Drug Use, and Depression Among Hispanic Men in Early Adulthood

Community research and clinical practice have shown that alcohol and drug use and depression are interrelated. Among Hispanics, acculturation may play a role in these relationships. To investigate these relationships as well as alcohol-related problems, we interviewed 288 Puerto Rican, Dominican, and Colombian men in early adulthood. No significant differences emerged in the proportions of abstainers across the three groups. Colombians drank significantly more frequently and had more alcohol-related problems than Dominicans. Dominicans were at least risk for and least likely to have alcohol-related problems. Puerto Ricans were much more likely to use drugs than the other Hispanic men. Drug use was associated with an increased likelihood of heavy drinking which, in turn, increased the risk of drug use and depression. Acculturation decreased the risk of drug use. Results are discussed in terms of implications for community psychology research and interventions.     

Individual differences in relatedness and individuality: An exploration of two constructs

Sociotropy and autonomy are two personality dimensions that relate to an individual's vulnerability to depression. Independent and interdependent self-construals are two distinctive cognitive formulations of the self derived from cross-cultural research. Both of these sets of constructs reflect self and other orientations. The purpose of the present study was to empirically examine the various factors that emerge when these two constructs are integrated. 652 participants responded to the Personal Style Inventory [Robins, C. J., Ladd, J., Welkowitz, J., Blaney, P. H., Diaz, R. & Kutcher, G. (1991). The Personal Style Inventory: Preliminary validation studies of new measures of sociotropy and autonomy. Journal of Psychopathology and Behavioral Assessment, 16, 277–300.], the Sociotropy-Autonomy Scale [Clark, D. A. & Beck, A. T. (1991). Personality factors in dysphoria: A psychometric refinement of Beck's Sociotropy-Autonomy Scale. Journal of Psychopathology and Behavioral Assessment, 13, 369–388.] and the Self-Construal Scale [Singelis, T. M. (1994). The measurement of independent and interdependent self-construals. Personality and Social Psychology Bulletin, 20, 580–591.]. Four factors emerged from a factor analysis conducted on the items of the three scales measuring sociotropy-autonomy and independent and interdependent self-construal. These four factors are discussed in the context of vulnerability to depression.