Spatial knowledge of a real school environment acquired from virtual or physical models by able-bodied children and children with physical disabilities

In Experiment 1, 2 groups of able-bodied children were exposed to both a complex single-tier virtual environment (VE) and a physical model of a different environment. For 1 group, the VE accurately modeled a real school, and for the other group the physical model did so. In transfer testing in the real school, orientation accuracy was greater in the group exposed to the VE of the real school. In Experiment 2, children with physical disabilities explored the VE model of the real school and were tested as in the 1st experiment. Measures of orientation accuracy and map-placing were significantly better in this group than in the guessing adult control group. The results illustrate the potential for VEs as useful spatial training media.     

Adult ADHD: Associations with Personality and Other Psychopathology

The goals of this study were to explicate adult ADHD’s relations with personality at both the domain and facet levels and to examine its associations with other psychological symptoms. Community members (N?=?294) completed measures assessing ADHD inattentive and hyperactive/impulsive symptoms, five-factor model personality domains and facets, and other internalizing and externalizing symptoms. Inattentiveness showed strong negative relations with conscientiousness and extraversion and strong positive relations with neuroticism; in contrast, hyperactivity/impulsivity related negatively to agreeableness, positively to extraversion, and weakly to neuroticism. Whereas inattentiveness emerged as a positive predictor of internalizing psychopathology—and depression in particular—hyperactivity/impulsivity related weakly to internalizing but more strongly to externalizing psychopathology. Thus, inattentive and hyperactive/impulsive symptoms showed differential relations with personality—at both the domain and facet levels—and with other psychological symptoms. These results demonstrate the value in examining ADHD’s relations with personality facets and with a wide range of psychopathology within the same study.     

Predictors of psychological outcomes in a longitudinal study of Latina breast cancer survivors

Objective: This study sought to investigate the unique contributions of socio-ecological, cultural and cancer treatment-related factors in predicting depressive symptoms and cancer-specific distress among Latinas. Design: Participants were 140 English or Spanish-speaking Latinas (M_age = 50.6) with non-metastatic breast cancer who were assessed within two years of diagnosis (Time 1) and three months later (Time 2).

Main Measures: Hierarchical regression analyses identified predictors of depressive symptoms and cancer-specific distress at Time 1 and 2.

Results: Most women scored above the clinical cut-offs for depressive symptoms and cancer-specific distress. After adjusting for socio-ecological factors, greater Latino enculturation, measured by Latino ethnic identity, was significantly associated with greater cancer-specific distress at Time 1 (β = .20, p < .05). A significant interaction (p < .01) revealed that among women high on Latino identity, lower English language use was associated with more cancer-specific distress than higher English language use. After adjusting for socio-ecological factors, greater satisfaction with surgical treatment predicted improved depressive symptoms and cancer-specific distress across time (β_s range from ?.31 to ?.18, p_s < .01).

Conclusions: Findings elucidate the complex relationship between culture and psychological outcomes in the breast cancer context and suggest that treatment satisfaction might be an important intervention target for Latinas.     

Effects of Early Hippocampal Lesions on Trace, Delay, and Long-Delay Eyeblink Conditioning in Developing Rats

The effects of bilateral hippocampal aspiration lesions on later acquisition of eyeblink conditioning were examined in developing Long-Evans rat pups. Lesions on postnatal day (PND) 10 were followed by evaluation of trace eyeblink conditioning (Experiment 1) and delay eyeblink conditioning (Experiment 2) on PND 25. Pairings of a tone conditioned stimulus (CS) and periocular shock unconditioned stimulus (US, 100 ms) were presented in one of three conditioning paradigms: trace (380 ms CS, 500 ms trace interval, 880 ms interstimulus interval [ISI]), standard delay (380 ms CS, 280 ms ISI), or long delay (980 ms CS, 880 ms ISI). The results of two experiments indicated that hippocampal lesions impaired trace eyeblink conditioning more than either type of delay conditioning. In light of our previous work on the ontogeny of trace, delay, and long-delay eyeblink conditioning (Ivkovich, Paczkowski, & Stanton, 2000) showing that trace and long-delay eyeblink conditioning had similar ontogenetic profiles, the current data suggest that during ontogeny hippocampal maturation may be more important for the short-term memory component than for the long-ISI component of trace eyeblink conditioning. The late development of conditioning over long ISIs may depend on a separate process such as protracted development of cerebellar cortex.     

Feedback interference and dissociations of classification: Evidence against the multiple-learning-systems hypothesis

Researchers have argued that different categorization problems are learned by separate and distinct cognitive systems. They propose that an explicit system is responsible for learning rule-based categories and that a separate implicit system learns information-integration categories. One source of supporting evidence involves experiments in which observers perform a concurrent memory-scanning task that interferes with the processing of feedback. Researchers have reported a dissociation in which this manipulation impairs learning of a rule-based category but not an information-integration category. In the present research, we test the hypothesis that the dissociation was the result of lowered perceptual discriminability in the rule-based structure in comparison with the information-integration one. We demonstrate an example of an alternate rule-based category with easy-to-discriminate stimuli in which performance is unaffected by the interfering memory-scanning task. Furthermore, we demonstrate that learning of an information-integration category with low perceptual discriminability is impaired by the memory-scanning task. These demonstrations of the reverse dissociation challenge the interpretation that rule-based and information-integration category structures are learned by separate cognitive systems.     

Does self-affirmation, cognitive processing, or discovery of meaning explain cancer-related health benefits of expressive writing?

Although expressive writing has positive effects on health, little is known about the underlying psychological mechanisms for these effects. The present study assessed self-affirmation, cognitive processing, and discovery of meaning as potential mediators of the effects of expressive writing on physical health in early-stage breast cancer survivors. A content analysis of the essays showed that self-affirmation writing was associated with fewer physical symptoms at a 3-month follow-up assessment, with self-affirmation writing fully mediating the effects of the emotional expression and benefit-finding writing conditions on reduced physical symptoms. Cognitive processing and discovery of meaning writing were not associated with any physical health outcomes. Consistent with evidence showing that self-affirmation plays an important role in buffering stress, the present study provides the first evidence for self-affirmation as a viable mechanism underlying the health benefits of expressive writing.     

Socio-communicative deficits in young children with Williams syndrome: performance on the Autism Diagnostic Observation Schedule.

In this investigation, the socio-communicative skills of 29 children with Williams syndrome aged 2 (1/2) to 5 (1/2) years were examined using the Autism Diagnostic Observation Schedule (ADOS) Module 1. Most of the participants showed socio-communicative difficulties. Approximately half of the participants were classified by the ADOS algorithm as "autism spectrum." Three participants were classified "autism." Difficulties with pointing, gestures, giving, showing, and eye contact were present for more than half of the participants, with many also showing difficulties with initiation and response to joint attention and with integration of gaze with other behaviors. Expressive and receptive language abilities of the children with Williams syndrome classified "autism spectrum" were weaker than for children classified nonspectrum, but expressive and receptive language level did not account for the socio-communicative difficulties. Implications for our understanding of the socio-communicative abilities of young children with Williams syndrome and diagnostic practices regarding dual diagnosis are discussed.     

Individual and dyadic associations among relational self‐expansion potential,affect, and perceived health

A growing body of literature suggests that specific markers of relationship quality are meaningfully linked to health outcomes. We tested whether relational self‐expansion potential might be one of these markers in cross‐sectional samples of individuals and romantic couples. Study 1 found that greater self‐expansion potential was linked to better perceived physical health via both higher positive affect (PA) and lower negative affect (NA). Study 2 replicated these findings for PA (but not NA) and revealed both actor and partner effects of self‐expansion potential. Results remained robust when statistically accounting for gender, age, body mass index, agreeableness, neuroticism, and perceived partner responsiveness. These findings identify a new relationship‐level “active ingredient” associated with health and have implications for future physical health studies.     

Traditional and Electronic Monitoring from an Organizational Justice Perspective

Performance monitoring was reviewed from an organizational justice perspective. Several predictors of perceived fairness were derived from this review and tested using employed respondents from eight different organizational settings (N = 301). Analyses confirmed that the predictors accounted for significant variance in perceived fairness in both electronically monitored and traditionally monitored work environments. These predictors were labeled monitoring consistency, knowledge of performance from monitoring, monitoring control, and justifications for monitoring.     

Empirical distributions of correlations as a tool for scale reduction

A Visual Basic program for generating a distribution of correlations as a tool for scale reduction is presented; the program is available free from the author and runs on IBM-compatible personal computers under the Windows 95/98/NT operating systems. The program generates a list of item combinations and correlations between the unit weighted sum of the items and a criterion score. The list can be used to locate item combinations that have high correlations with the original full-length test. An example application is presented to illustrate the use of the program. The compiled program and its source code can be downloaded from http://personal.bgsu.edu/~stanton/r_crunch/r_crunch.zip.