Revised Space Fortress: A validation study

We describe briefly the redevelopment of Space Fortress (SF), a research tool widely used to study training of complex tasks involving both cognitive and motor skills, to be executed on currentgeneration systems with significantly extended capabilities, and then compare the performance of human participants on an original PC version of Space Fortress (SF) with the revised Space Fortress (RSF). Participants trained on SF or RSF for 10 sets of eight 3-min practice trials and two 3-min test trials. They then took tests involving retention, resistance to secondary task interference, and transfer to a different control system. They then switched from SF to RSF or from RSF to SF for 2 sets of final tests and completed rating scales comparing RSF and SF. Slight differences were predicted on the basis of a scoring error in the original version of SF used and on slightly more precise joystick control in RSF. The predictions were supported. The SF group started better but did worse when they transferred to RSF. Despite the disadvantage of having to be cautious in generalizing from RSF to SF, we conclude that RSF has many advantages, which include accommodating new PC hardware and new training techniques. A monograph that presents the methodology used in creating RSF, details on its performance and validation, and directions on how to download free copies of the system may be downloaded from www .psychonomic.org/archive/.     

Social contexts of drug offers among American Indian youth and their relationship to substance use: an exploratory study

In this exploratory study the authors examined the social contexts of American Indian youths' encounters with drug offers and their relationship to substance use. Using an inventory of drug use-related problem situations developed specifically for American Indian youth, questionnaires were completed by 71 American Indian youth at public middle schools in a Southwest metropolitan area. Regression analyses highlight the importance of situational and relational contexts in understanding substance use among the youth in this sample. Exposure to drug offers through parents, other adults, cousins, friends and other peers was associated with different types of substance use. Exposure through parents was particularly salient in predicting the drug use of female respondents. The study underscores the need for development of culturally grounded prevention programs in schools, reservations, and nonreservation communities.     

Development of infants' sensitivity to surface contour information for spatial layout

The development of sensitivity to a recently discovered static-monocular depth cue to surface shape, surface contours, was investigated. Twenty infants in each of three age groups (5, 5 1/2, and 7 months) viewed a display that creates an illusion, for adult viewers, that what is in fact a frontoparallel cylinder is slanted away in depth, so that one end appears closer than the other. Preferential reaching was recorded in both monocular and binocular conditions. More reaching to the apparently closer end in the monocular than in the binocular condition is evidence of sensitivity. Infants aged 7 months responded to surface contour information, but infants aged 5 and 5 1/2 months did not. In a control study, twenty 5-month-old infants reached consistently for the closer ends of cylinders that were actually rotated in depth. As findings with other static-monocular depth information suggest, infants' sensitivity to surface contour information appears to develop at approximately 6 months.     

Relations among hand preference,craniofacial asymmetry,and ear advantage in young subjects

The relations for hand preference with craniofacial asymmetry and ear advantage, and between craniofacial asymmetry and ear advantage were investigated in young healthy subjects. Ear advantage was recorded as duration of hearing, craniofacial asymmetry by computerized tomography in 44 right-handed and 38 left-handed male and female high school students. Right-handers had a right ear advantage and a larger left craniofacial region, whereas left-handers had a left ear advantage and a larger right craniofacial region. These results are consistent with the speculation that hand preference may be related to craniofacial and consequently aural asymmetries.     

Individual autonomy in organizations

This paper attempts to quantify the notion of an individual's desire for autonomy in an organization. It is shown that the basis for this concept can be formulated axiomatically, and a numerical function constituting the “degree” of autonomy can be derived. The relations between the individual's basic preferences, his/her feelings of autonomy, and the individual's performance as an organization member, are also studied. In this connection the loyalty of the member to the organization becomes important, and this notion is also developed axiomatically.     

Relationship Between Miscarriage and Dysfunctional Cognitions About Trauma,Coping Mechanisms,and Posttraumatic Growth

Many studies have described grief and psychiatric symptomatology as a typical feature following miscarriage. How women who had a miscarriage (MG) respond to trauma in terms of negative cognitions about their selves and the world, the coping strategies they employ to overcome the effects of the trauma, and what factors might be indicative of posttraumatic growth (PTG) in this population have not been extensively studied so far. We aimed to identify whether women who had a miscarriage (N = 74 vs. N = 82 control subjects) exhibited higher levels of psychological distress symptoms, dysfunctional cognitions, and maladaptive coping strategies, and whether women with lower PTG employed more maladaptive coping strategies, and reported higher levels of dysfunctional cognitions. Group comparisons according to the diagnostic groups based on self-report measures for depression, anxiety, posttraumatic stress disorder and according to the level of PTG, and stepwise linear regression analyses with PTG as the outcome were performed. Our study demonstrated that the MG does not necessarily differ from the control group on some measures of psychopathology, coping mechanisms, dysfunctional cognitions, or PTG. Yet, the MG who exhibited higher levels of PTG had specific predictors, and women with a psychiatric diagnosis differed from participants with no diagnoses on some measures of dysfunctional cognitions, coping mechanisms, and PTG. Further studies with a prospective design could further clarify the needs of the MG requiring psychotherapeutic interventions.     

Representations of relatedness with parents and friends and autonomous academic motivation during the late adolescence–early adulthood period: Reciprocal or unidirectional effects?

Background The literature on the determinants of academic motivation indicates that social and affective processes connected to students' interpersonal relationships are central elements in understanding students' academic motivation and other school‐related outcomes. Aims The aim of this study was to answer the following questions: Does autonomous motivation drive representations of relatedness, do representations of relatedness drive autonomous motivation, or are these constructs reciprocally related over time? Sample The sample consists of 834 adolescents aged 18 years (SD = 1.88) who participated in a 3‐year longitudinal study. Results Results from the structural equation models provided good support for the effect of representations of relatedness with parents on autonomous academic motivation but no convincing support for the effect of motivation on representations of relatedness with parents. In addition, no significant effect in either direction was found between representations of relatedness with friends and autonomous academic motivation. Conclusion It might be important to inform parents that they may still have an influence on their adolescent's representations of relatedness and subsequently on his/her autonomous academic motivation even during the late adolescence–early adulthood period, a period when some parents may be tempted to believe that they can do little to motivate their offspring.     

Cognitive Reactivity in Depressed Outpatients: How Different is Severe Depression?

Cognitive behavioral approaches have been able to demonstrate some of the underlying and perpetuating factors of depression such as cognitive reactivity (CR). The association of CR and the severity of depression is yet to be reported. We aimed to compare the CR of a group of outpatients based on their self-reported severity of depression (SRSD), and to identify the role of specific CR vulnerability markers in depression. The study population consisted of 221 outpatients diagnosed with Major Depressive Disorder. We used the Mini International Neuropsychiatric Interview, and completed a demographic and clinical data form. The participants completed the Leiden Index of Depression Sensitivity-Revised (LEIDS-R), and the Hospital Anxiety and Depression Scale. To identify how well CR, as measured by the scores of the LEIDS-R, could discriminate the groups based on the SRSD, one-way analysis of variance was used. To examine the unique associations between the CR and the SRSD, a hierarchical linear regression analysis was performed. To identify group membership to severe depression, the scores of the LEIDS-R were entered in a logistic regression model. Large, and small group differences emerged on the rumination, and control scores, respectively. The other group differences were all in the medium range. The control, risk aversion, and rumination scores were the subscales which explained a significant proportion of the variance in the SRSD. Overall, the logistic regression model classified 93.7 % of the severely depressed patients correctly. These results indicated that rumination, risk aversion, and perfectionism were particularly associated with severe depression.     

The Economic Benefits of Increased Treatment Duration and Intensity in Residential and Outpatient Substance Abuse Treatment Settings

This study presents estimates of the economic benefits to society from community-based substance abuse treatment. The analysis focused on the impact of length of stay and frequency of counseling on clients' crime-related and health care costs, welfare receipts, and income taxes. The results indicate that the benefits from an additional day of treatment were on average $21 for short-term residential treatment (or 29% the cost of a day of care), $13 for outpatient drug-free treatment (or 94% the cost of a day of care), and $5 for long-term residential treatment (or 9% the cost of a day of care). No benefits were found from additional counseling provided by a client's primary therapist. Withthe exception of short-term residential care, estimated increases in client earnings from longer lengths of stayexceeded the benefits to society. Our estimates do not include benefits realized during treatment or beyond the year after treatment.     

Cognitive ability,parenting and instruction in Vietnam and Germany

In a sample of N = 105 fifth graders from Vietnam and Germany, cognitive abilities (CogAT-Nonverbal, i.e. fluid figural, CogAT-Quantitative, i.e. crystallized mathematics), family attributes, parenting styles, leisure time activities, and attributes of school and instruction were compared. In spite of large cultural and economic differences, the general cognitive ability levels were similar (M_Vnm = 99.43 vs. M_Deu = 99.13 IQ points in current UK norms). This result is in contradiction to usual outcomes in developing countries. However, regarding family, parenting, school and instruction, differences were observed: German families had more books. German parents were less frequently married and German families less frequently consisted of both mother and father. Vietnamese parents had more children. Vietnamese parents showed higher levels of authoritarian and neglecting parenting. German children read more books. The Vietnamese did not attend kindergarten, had larger classes, more homework, and more private tuition. In a path analysis, parental educational level, number of books, burgher family, low birth order rank, amount of teaching, parental income, Confucian educational orientation and Vietnamese background all revealed a positive impact on children's intelligence.