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Three experiments are made to investigate environmental context-dependent memory effects with the use of ambient odors specifically lemon and rosemary as environmental contexts. Findings reveal that the unpleasantness and distinctiveness of an odor mediates the emergence of these effects which could explain rosemary's potency in this effect.

Objective: This study examined racial/ethnic differences in alcohol, cigarette, and marijuana use among a diverse sample of approximately 5,500 seventh and eighth graders. We also evaluated the extent to which individual, family, and school factors mediated racial/ ethnic disparities in use. Method: Students (49% male) from 16 participating middle schools in southern California reported on lifetime and past-month substance use, individual factors (expectancies and resistance self-efficacy), family factors (familism, parental respect, and adult and older sibling use), and school factors (school-grade use and perceived peer use). We used generalized estimating equations to examine the odds of consumption for each racial/ethnic group adjusting for sex, grade, and family structure. Path analysis models tested mediation of racial/ethnic differences through individual, family, and school factors. Results: After adjusting for sex, grade, and family structure, Hispanics reported higher and Asians reported lower lifetime and past-month substance use, compared with non-Hispanic Caucasians. Rates of substance use did not differ between non-Hispanic African Americans and Caucasians. Several individual factors mediated the relationship between Hispanic ethnicity and substance use, including negative expectancies and resistance self-efficacy. Higher use among Hispanics was generally not explained by family or school factors. By contrast, several factors mediated the relationship between Asian race and lower alcohol use, including individual, family (parental respect, adult and older sibling use), and school (perceived peer use, school-grade use) factors. Conclusions: Results highlight the importance of targeting specific individual, family, and school factors in tailored intervention efforts to reduce substance use among young minority adolescents., ALCOHOL, CIGARETTE, AND MARIJUANA USE during adolescence presents a significant public health burden. Substance use during adolescence has been associated with an increased likelihood of substance-use disorders in young adulthood [...]

Cross-lagged panel analysis of interview data collected from survivors of traumatic physical injury (N = 677) was used to examine the temporal relationship between anxiety sensitivity and posttraumatic stress disorder (PTSD) symptom severity. The 2 constructs were assessed at 3 time points: within days of physical injury, at 6-month follow-up, and at 12-month follow-up. Results indicated that anxiety sensitivity and PTSD symptom severity were reciprocally related such that anxiety sensitivity predicted subsequent PTSD symptom severity, and symptom severity predicted later anxiety sensitivity. Findings have both theoretical and clinical implications. Keywords: anxiety sensitivity, posttraumatic stress disorder, cross-lagged panel analysis, structural equation modeling, physical injury DOI: 10.1037/a0018009

This study used longitudinal data collected from two trauma-exposed samples, survivors of community violence (N = 294) and wildfire evacuees (N = 234), to examine a key claim underlying a proposed reformulation of the symptom structure of posttraumatic stress disorder (PTSD). This theory, which we term the PTSD--dysphoria model, posits that 8 of 17 symptoms of PTSD reflect dysphoria or general psychological distress and might be deemphasized to improve the utility of the PTSD construct (Simms, Watson, & Doebbeling, 2002). For each sample, we analyzed PTSD symptoms and measures of general distress administered at 2 time points. A consistent pattern of findings was observed across assessments for each sample: All 17 PTSD symptoms were highly associated with measures of general distress. Moreover, we found no evidence that dysphoria symptoms were more highly correlated than PTSD-specific symptoms with general distress. Results call into question both the conceptual basis and the clinical utility of differentiating between symptoms that appear to be relatively specific to PTSD and those that seem more broadly characteristic of general psychological distress. Keywords: posttraumatic stress disorder symptoms, anxiety, depression DOI: 10.1037/a0018477

This longitudinal study of physical injury survivors examined the degree to which Hispanic and non-Hispanic Caucasians reported similar posttraumatic stress disorder (PTSD) symptoms. Adult physical trauma survivors (N = 677) provided information regarding posttraumatic distress by completing an interview-administered version of the PTSD Symptom Checklist (Civilian version) at 3 time points: within days of trauma exposure and again at 6 and 12 months posttrauma. Structural equation modeling with propensity weights was used in analyzing data. Results replicated prior research indicating that Hispanics report greater overall PTSD symptom severity. However, the size of this effect varied significantly across the 17 individual PTSD symptoms, and several symptoms were not reported more highly by Hispanics. Relative to non-Hispanic Caucasians, Hispanics tended to report higher levels of symptoms that could be regarded as exaggerated or intensified cognitive and sensory perceptions (e.g., hypervigilance, flashbacks). In contrast, few differences were observed for symptoms characteristic of impaired psychological functioning (e.g., difficulty concentrating, sleep disturbance). Findings suggest that the pattern of PTSD symptoms experienced most prominently by Hispanics differs in kind and not merely in degree. Results have implications for theory aimed at explaining this ethnic disparity in posttraumatic psychological distress as well as for clinical intervention with trauma-exposed Hispanics. Keywords: posttraumatic stress disorder, Hispanics, ethnic disparities, structural equation modeling DOI: 10.1037/a0017721

Objective: Few studies have applied the 'life course perspective' to the study of drug use, a noticeable omission in the field. The current study addresses this gap by examining patterns of interpersonal crime, substance use, and emotional problems over 7 years for a sample of 196 high-risk males as they transition from adolescence to young adulthood, with a specific focus on the role of transitions (living alone, employment, marrying or cohabiting with a romantic partner, graduating from high school or acquiring a General Equivalency Diploma, and becoming a parent) on these patterns. Method: We surveyed youth who were adjudicated as delinquent in Los Angeles between February 1999 and May 2000 and referred by probation officials to Phoenix Academy, a long-term residential substance-treatment provider for adolescent probationers. Males ages 13-17 (N= 196) were given face-to-face inter views at study entry and at 3, 6, 12, 24, 30, 72, and 87 months. Results: Living independently and cohabiting were associated with decreased substance problems. Living with children was associated with increased interpersonal crime. Living away from parents was associated with an increase in substance problems following the transition and then a subsequent decrease in problems over time. No effects were found for receiving a diploma or having employment. Conclusions: It is crucial to begin to understand how developmental transitions may affect high-risk adolescents' involvement in criminal behavior, substance use, and emotional problems. The current study suggests that several transitions were associated with a reduction in problems as these youth transitioned into young adulthood., MANY YOUNG PEOPLE EXHIBIT delinquent behaviors, including using substances and committing minor offenses (e.g., petty theft); however, for the majority of youth, these behaviors desist as they transition into adulthood [...]

Three experiments are reported that used eye-movement tracking to investigate the inspection-time effect predicted by Evans' (1996) heuristic-analytic account of the Wason selection task. Evans' account proposes that card selections are based on the operation of relevance-determining heuristics, whilst analytic processing only rationalizes selections. As such, longer inspection times should be associated with selected cards (which are subjected to rationalization) than with rejected cards. Evidence for this effect has been provided by Evans (1996) using computerpresented selection tasks and instructions for participants to indicate (with a mouse pointer) cards under consideration. Roberts (1998b) has argued that mouse pointing gives rise to artefactual support for Evans' predictions because of biases associated with the task format and the use of mouse pointing. We eradicated all sources of artefact by combining careful task constructions with eye-movement tracking to measure directly on-line attentional processing. All three experiments produced good evidence for the robustness of the inspection-time effect, supporting the predictions of the heuristic-analytic account.