A computer simulation/mathematical model of learning: Extension of DMOD from appetitive to aversive situations

The computer simulation/mathematical model called DMOD, which can simulate over 35 different phenomena in appetitive discrete-trial and simple free-operant situations, has been extended to include aversive discrete-trial situations. Learning (V) is calculated using a three-parameter equation \(\Delta V = \alpha \beta (\lambda - \bar V)\) (see Daly & Daly, 1982; Rescorla & Wagner, 1972). The equation is applied to three possible goal events in the appetitive (e.g., food) case and to three in the aversive (e.g., shock) case. The original goal event can be present, absent, or reintroduced; in the appetitive situation, these events condition approach (Vap), avoidance (Vav), and courage (Vcc), respectively. In the aversive situation, the events condition avoidance (Vav*), approach (Vap*), and cowardice (Vcc*), respectively. The model was developed in simple learning situations and subsequently was applied to complex situations. It can account for such diverse phenomena as contrast effects after reward shifts, greater persistence following partial than following continuous reinforcement, and a preference for predictable appetitive and predictable aversive events. Application of the aversive version of the model to “reward” shifts is described.     

Behavioral skills workshop for staff and supervisor in a community residence for developmentally handicapped adults

A behavioral skills workshop for counselors and a supervisor in a community group home was developed and evaluated. The workshop included group skills training, individual supervised in vivo practice, and supervisor training. Supervisor training taught behavioral staff management skills that were delivered in a multiple baseline design across subjects. Positive changes in staff behavior occurred for each group only after supervisor intervention. Significant positive changes occurred by the end of the workshop and were maintained at follow-up for staff self-evaluations of expertise and confidence to resolve problems, severity of client problems, and behavioral observations of positive client behaviors.     

Parental blaming and acquisition of guilt: A developmental task of childhood

Incidents involving the authors' twin 10-year-old daughters illustrate that guilt is well established in normal children of 10. The incidents suggest how the expectation of parental blaming triggers guilt and shame. Guilt and shame are compared. While they may coexist in the 10-year-old, guilt clearly is assuming a dominant position. Mental health professionals have emphasized the psychopathology of guilt and many forget that it is essential for normal socialization in that the guilty person feels a need to repair damage allegedly done. Guilt presumes that at least a primitive mutuality has been established in the person; and mutuality is the hallmark of human maturity. Terms are defined here with some variation from their usage by mental health experts: shame, guilt, blame, and counterblame.     

Once a princess,always a princess: A strategy for therapy with families of rape victims

Reconstitutive interventions for victims of rape involve more than discussion of cognitive and emotional responses to the traumatic events of the rape and the post-traumatic anxiety and depression. Many victims and families of victims are not able to reconstruct a supportive functional system after they have been violated by rape. This paper presents a strategic ritual which can be used with the raped family to facilitate this reorganization and restitution of their integrity.Through the use of a short metaphorical story and symbolic ritual, each individual member and the family as a whole can experience, reexperience, and redecide how they will respond to this traumatic event through open expression of their emotions and responses. Reintegration of their responses and shared life crisis enable them to respond to one another in ways not open to them previously.     

Vasopressin, maternal behavior, and pup well-being

The brain peptide, vasopressin (VP), was studied with respect to its effects on maternal care in rearing natural and cross-fostered pups. Long-Evans (LE) rats synthesize hypothalamic VP; whereas, Brattleboro (DI) rats do not produce this peptide. Long-Evans dams exhibited superior maternal care when compared with DI dams when rearing their own as well as foster pups. This enhanced behavior was evidenced by the higher survival rate of pups reared by LE mothers compared to those reared by DI mothers. Later, when the offspring were subjected to the stress of 23 hours of food restriction each day, LE animals reared by their natural mothers survived for a significantly longer period of time and developed significantly less stomach pathology than DI animals reared by their natural mothers or LE foster mothers. The results demonstrated that the secondary factor of maternal care in the absence of VP was of little consequence in the characteristic difficulties observed in DI offspring.     

Family therapy and a “good” society: Fit or misfit?

Contextual therapy is compared with a good society based on socialist principles of equality, planning and sociality. The two models are analyzed across dimensions of justice, connectedness, change, and basic human resource for similarities and differences.     

Early adolescents' values about their pets

The essays of adolescent boys and girls (N = 354) explaining their decisions to save a pet in the event of a fire were examined by content analysis for the adolescents' underlying value orientations. Hedonistic utility, a moral value characteristic of the second of Kohlberg's (1976) moral development stages, was the primary value underlying adolescents' choices.     

Stability and change in children's skill

Summary This paper explores age-related performance variability, both within trials and between sessions, in repetitive hopping. The mean, the standard deviation (SD), and the coefficient of variation (CV) of several timing and ground-reaction-force variables of hopping were analysed by repeated-measures ANOVA for age-related effects across test sessions and foot used. Forty-five subjects in five age groups (3–4 years, 4–5 years, 6–7 years, 8–9 years, or Adult) performed self-paced, one-footed hopping on three occasions within one week. As was expected, the results showed main effects for Age in all force and time variables, with the exception of CV of medio-lateral force. No significant main effects for Feet were revealed. However, significant Feet x Session interactions were found in flight-time measures, with higher flight-time SD and lower CV for the non-preferred foot in Session 1, a reversal in Session 2, and a negligible difference in Session 3. Across sessions, decreased SD and CV for both vertical and medio-lateral force and shorter flight time indicated more efficient hopping. Overall, it was concluded that SD and CV measures were more sensitive measures of children's performance across repeated sessions than were mean scores and that the order of testing the limbs is an important consideration in experimental protocols when lateralized tasks are measured.     

The contexts of housework and the paid labor force: Women's perceptions of the demand levels of their work

This research explores the work perceptions, both physical and mental, of women. The research finds that women's perceptions of waged and nonwaged labor differ greatly depending on the work environment. Perceptions of physical demands of waged labor are almost solely dependent on the type of paid labor women engage in. For homeworkers, perceptions of physical labor are influenced primarily by the number of hours invested in housework. The mental demands of waged and nonwaged labor are also perceived differently. Women in the waged economy report significantly higher mental demands than do homeworkers. This too varies across labor segments. The closest parallel between physical and mental demand perceptions is between homeworkers and women in the service sector of the waged economy. Overall the assumption that women perceive their work roles in the waged market and the home market similarly is negated.