Caffeine reduces time-of-day effects on memory performance in older adults

For most older adults, memory performance depends on the time of day, with performance being optimal early in the morning and declining during the late afternoon hours. In the present study, we asked whether this decline could be ameliorated by a simple stimulant, caffeine. Adults over the age of 65 who considered themselves "morning types" were tested twice over an interval of 5 to 11 days, once in the morning and once in the late afternoon. Participants ingested either coffee with caffeine or decaffeinated coffee at both sessions. Participants who ingested decaffeinated coffee showed a significant decline in memory performance from morning to afternoon. In contrast, those who ingested caffeine showed no decline in performance from morning to afternoon. The results suggest that time-of-day effects may be mediated by nonspecific changes in level of arousal.     

Age-related equivalence and deficit in knowledge updating of cue effectiveness

Knowledge updating involves learning about cue effectiveness based on task experience. Priorresearch has yielded inconsistent conclusions regarding age and knowledge updating. To resolve this inconsistency, the authors analyzed the effects of aging within a single paradigm. Participants studied cue-target associates during 2 study-test trials. Cues included rhyme cues and highly effective category cues. On each study-test trial, different items were presented, and participants predicted recall performance, received a cued recall test, and postdicted performance. Knowledge updating was operationalized as an improvement in the accuracy of predictive judgments across trials. An age deficit was evident in improvements in absolute accuracy, whereas age equivalence was evident in relative accuracy. Evidence suggested that deficient inferential processes contributed to the age deficit in knowledge updating.     

Detection thresholds for intensity increments in a single harmonic of synthetic Japanese macaque (Macaca fuscata) monkey coo calls

There is evidence that Japanese macaques (Macaca fuscata) are extremely sensitive to dynamic changes in the relative amplitudes of coo call harmonics during discrimination tests. To verify this evidence using more controlled stimulus configurations, the authors examined threshold sensitivity of macaque monkeys to amplitude increments added to the standard level of coo call harmonics. Psychophysical threshold determination methods paralleled those used previously to determine macaque sensitivity to amplitude increments added to vowel-like stimuli. Variation was detectable although thresholds were elevated relative to those obtained with vowel-like stimuli in another investigation (C. G. Le Prell, A. J. Niemiec, & D. B. Moody, 2001). This elevation was probably a function of natural amplitude modulation in the standard stimuli.     

Narrative representations of moral-affiliative and conflictual themes and behavioral problems in maltreated preschoolers

Examined whether maltreated preschoolers are more likely than nonmaltreated preschoolers to have fewer moral-affiliative and more conflictual narrative representations and whether these representations mediate child behavior problems. A structured narrative story-telling task was administered to assess representations, and independent ratings of behavior problems were obtained from teachers. The narratives of maltreated children contained more conflictual and fewer moral-affiliative themes. Maltreated children also exhibited more internalizing and externalizing behavior problems. A partial mediation effect of conflictual representations on the relation between child maltreatment and externalizing behavior problems was found. The results demonstrate the relation between child maltreatment and children's organization of their life experiences and their behavioral symptomatology.     

Psychometrically matched visual-processing tasks in schizophrenia spectrum disorders

Patients with schizophrenia show deficits in visual perception and working memory, but the relationship between these deficits has not been characterized with psychometrically matched tasks. The authors administered 2 visual discrimination and 6 recognition tasks to 43 schizophrenia spectrum patients and 22 nonpsychiatric subjects. When performing difficulty-matched tasks, spectrum subjects showed more severe impairments for motion compared with form processing. When tasks were matched on true score variance, spectrum subjects exhibited worse performance on both form and motion discrimination, and a differential deficit in motion recognition with a short display duration and long interstimulus interval. These results provide evidence of differential deficits in visual processing in schizophrenia that appear to be dependent on the temporal characteristics of the tasks.     

Acoustic startle in maltreated children

We investigated the eyeblink component of acoustic startle reactions in maltreated children. Previous research indicates that acoustic startle is enhanced in adult males with posttraumatic stress disorders (PTSD) whereas findings on women with PTSD have been inconsistent. In accord with the only previous report for children with PTSD, we found that maltreated boys, particularly those who had been physically abused, responded to increases in startle probe loudness with smaller increments in amplitude of startle eyeblink and smaller reductions in blink latency than did comparison boys. Results for girls were inconsistent: younger maltreated girls had smaller startle amplitude and slower onset latency than controls, whereas older maltreated girls exhibited the opposite pattern.     

Mindfulness Among Genetic Counselors Is Associated with Increased Empathy and Work Engagement and Decreased Burnout and Compassion Fatigue

Genetic counselors experience high rates of compassion fatigue and an elevated risk for burnout, both of which can negatively impact patient care and retention in the profession. In other healthcare professions, mindfulness training has been successfully used to address similar negative psychological sequelae and to bolster empathy, which is the foundation of our counseling work. We aimed to assess associations between mindfulness and key professional variables, including burnout, compassion fatigue, work engagement, and empathy. Data were collected via an anonymous, online survey that included validated measures of mindfulness and these key professional variables. The survey was completed by 441 genetic counselors involved in direct patient care. Half of the respondents (50.1%) reported engaging in yoga, meditation, and/or breathing exercises. Mindfulness was positively correlated with work engagement (r?=?0.24, p?<?0.001) and empathy (as measured through four subscales: perspective taking (r?=?0.15, p?=?0.002), empathic concern (r?=?0.11, p?=?0.03), fantasy (r?=???0.11, p?=?0.03) and personal distress (r?=???0.15, p?=?0.001)). Mindfulness was negatively correlated with compassion fatigue (r?=???0.48, p?<?0.001) and burnout (r?=???0.50, p?<?0.001). Given these findings, mindfulness training may be a valuable addition to graduate and continuing education for genetic counselors. The integration of mindfulness into the genetic counseling field will likely improve professional morale and well-being, while promoting workforce retention and bolstering the relational and counseling aspects of our clinical work.     

Clinical Cardiovascular Genetic Counselors Take a Leading Role in Team-based Variant Classification

We sought to delineate the genetic test review and interpretation practices of clinical cardiovascular genetic counselors. A one-time anonymous online survey was taken by 46 clinical cardiovascular genetic counselors recruited through the National Society of Genetic Counselors Cardiovascular Special Interest Group. Nearly all (95.7%) gather additional information on variants reported on clinical genetic test reports and most (81.4%) assess the classification of such variants. Clinical cardiovascular genetic counselors typically (81.0%) classify variants in collaboration with cardiologist and/or geneticist colleagues, with the genetic counselor as the team member who is primarily responsible. Variant classification is a relatively recent (mean 3.2 years) addition to practice. Most genetic counselors learned classification skills on the job from clinical and laboratory colleagues. Recent graduates were more likely to have learned this in graduate school (p?<?0.001). Genetic counselors are motivated to take responsibility for the classification of variants because of prior experiences with variant reclassification, inconsistencies between laboratories, and incomplete laboratory reports. They are also driven by a sense of professional duty and their proximity to the clinical context. This practice represents a broadening of the skill set of clinical cardiovascular genetic counselors and a unique expertise that they contribute to the interdisciplinary teams in which they work.     

Interactions of emotion regulation and perceived stress in predicting emerging adults’ subsequent internalizing symptoms

Emotion regulation is consistently linked to subsequent wellbeing, but little research has examined the moderating role of emotion regulation in longitudinal associations between mental health and other relevant factors. This study examines two specific emotion regulation strategies interacting with perceived stress to predict subsequent internalizing symptoms among emerging adults transitioning to college, a population for whom emotion regulation may be particularly important. A sample of 1130 college students provided data at three time points. Results indicated that cognitive reappraisal buffered against negative effects of stress, whereas expressive suppression was an independent risk factor for internalizing symptoms. Findings underscore the importance of emotion regulation, highlighting cognitive reappraisal as a protective factor against stress and further demonstrating the direct negative impacts of expressive suppression.     

The Effects of Choice Between Nonpreferred Foods on the Food Consumption of Individuals with Food Selectivity

Previous research has concluded that presenting individuals with the opportunity to choose is a viable treatment for escape‐maintained behavior. Considering that food refusal behavior has been generally described as avoidant behavior, the present study aimed to evaluate the role of choice between nonpreferred foods on the food consumption and problematic mealtime behavior of two children with food selectivity. Each participant was allowed to choose between four nonpreferred foods in the choice condition and was not allowed to choose in the no‐choice condition. Further, the role of choice as an antecedent manipulation in mediating extinction‐induced responding was evaluated when choice alone was demonstrated to be ineffective in increasing consumption and a nonremoval of the spoon procedure was introduced. Results indicated that providing choices was effective in increasing the food consumption of one participant and was advantageous in decreasing emotional responding when a nonremoval of the spoon procedure was introduced for the second participant. Copyright © 2015 John Wiley & Sons, Ltd.