Soil data recency: The foundation for harmonizing soil data across time.

Sustainable soil resource management depends on reliable soil information, often derived from 'legacy soil data' or a combination of old and new soil data. However, the task of harmonizing soil data collected at different times remains a largely unexplored in the literature. Addressing this challenge requires incorporating the temporal dimension into mathematical and statistical models for spatio-temporal soil studies. This study aimed to create a comprehensive framework for harmonizing soil data across various time. We assessed the integration of historical and recent soil data, ranging from 4 to 48 years old data, using soil data recency analysis. To achieve this, we introduced an 'age of data' attribute, calculating the time difference between soil survey years and the present (e.g., 2022). We applied three machine learning models - Decision Trees (DT), Random Forest (RF), Gradient Boosting (GBM) - to a dataset containing 6339 sites and 28,149 depth-harmonized layers. The results consistently demonstrated robust performance across models, RF outperforming with an R-squared value of 0.99, RMSE of 1.41, and a concordance of 0.97. Similarly, DT and GBM also showed strong predictive power. Terrain-derived environmental covariates played a more important role than land use and land cover (LULC) change in predicting soil data recency. While LULC change showed soil organic carbon concentration variability across the different depths, it was a less important factor. Anthropogenic factors, such as LULC change and normalized difference vegetation index (NDVI), were not primary determinants of soil data recency. Variations in soil depth had no impact on predicting soil data recency. This study validated that terrain-derived covariates, especially elevation factors, effectively explain the quality of older soil data when predicting current soil attributes using the soil data recency concept. This approach has the potential to enhance real-time estimates, such as carbon budgets, and we emphasize its importance in global earth system models.

Subjective cognition and memory lapses in the daily lives of breast cancer survivors: Examining associations with objective cognitive performance, fatigue, and depressed mood.

OBJECTIVE: Subjective reports of cancer-related cognitive impairment often far exceed that documented using in-person neuropsychological assessment. This study evaluated whether subjective cognition was associated with real-time objective cognitive performance in daily life versus performance on an in-person neuropsychological battery, as well as fatigue and depressed mood. METHODS: Participants were 47 women (M age = 53.3 years) who completed adjuvant treatment for early-stage breast cancer 6-36 months previously. During an in-person assessment, participants completed a neuropsychological battery and questionnaires on subjective cognition, fatigue, and depressed mood. Over 14 days, participants responded to up to 5 prompts that assessed real-time processing speed and memory and self-reported ratings of depressed mood and fatigue. In the evenings, participants rated their subjective cognition that day and reported on memory lapses (e.g., forgetting a word). RESULTS: During the in-person assessment, participants who rated their cognition worse reported worse depressed mood, but did not exhibit poorer objective cognitive performance. Women with worse rated daily subjective cognition reported more daily fatigue but did not demonstrate worse real-time objective cognition. Finally, women who reported memory lapses at the end of the day reported more fatigue and depressed mood, demonstrated better real-time performance on processing speed (p = 0.001), and worse in-person processing speed and visuospatial skills (p's ≤ 0.02). CONCLUSION: Subjective cognition was consistently associated with self-reported fatigue and depressed mood. Specific memory lapses were related to in-person and daily objective cognitive performance. This suggests that incorporating reports of memory lapses may help clinicians identify those with objectively measured cancer-related cognitive impairment.

Emotion word use patterns and eating disorder symptoms: Considering the circumplex model of affect and basic emotions theory.

OBJECTIVE: No prior research has examined whether the types of emotion words individuals use to describe their affective experiences cluster along affective dimensions inherent within leading affect theories, or how such emotion word use maps onto eating disorder (ED) symptoms. METHOD: To address these gaps, latent profile analysis was used to empirically-identify groups of young adults (N = 352) by how often they use emotion words characterized by the circumplex model of affect's valence-arousal dimensions and basic emotions theory's basic versus complex emotion word categorizations. Auxiliary analyses examined differences in groups' ED symptoms (binge eating, purging, restricting, excessive exercising, muscle building, body dissatisfaction, and cognitive restraint). RESULTS: The 5-profile valence-arousal model and 4-profile basic-complex model were the best-fitting theoretically-supported solutions. Valence-arousal profiles with greater negative affect valence generally exhibited worse ED pathology than others, whereas profiles with greater positive affect valence produced inconsistent risk- and protective-factor relations with distinct ED symptoms. Basic-complex profiles characterized by frequent use of both basic and complex emotion words generally had the greatest ED severity, and profiles with greater basic emotion word use exhibited elevated binge eating. DISCUSSION: Individual-differences in young adults' emotion word use patterns, versus sample-level averages only, warrant further consideration in ED prevention and research. PUBLIC SIGNIFICANCE: The present findings suggest that young adults differ in the types of words they use to describe their emotional experiences, and that these unique emotion word use patterns are linked to distinct eating disorder symptoms. These sources of variation warrant further consideration in eating disorders prevention efforts and future research seeking to advance affect-based eating disorders theories.

Introversion and the frequency and intensity of daily uplifts and hassles.

OBJECTIVE: There is reason to believe that introversion may relate to different patterns of negative and positive experiences in everyday life ("hassles" and "uplifts"), but there is little evidence for this based on reports made in daily life as events occur. We thus extend the literature by using data from ecological momentary assessments to examine whether introversion is associated with either the frequency or intensity of hassles and uplifts. METHOD: Participants (N = 242) were community-dwelling adults (63% Black, 24% Hispanic; ages 25-65; 65% women) who completed baseline measures of personality and mental health, followed by reports of hassles and uplifts 5x/day for 14 days. We present associations between introversion and hassles/uplifts both with and without controlling for mood-related factors (neuroticism, recent symptoms of depression, and anxiety). RESULTS: Introversion was associated with reporting less frequent and less enjoyable uplifts, but not with overall hassle frequency or unpleasantness; exploratory analyses suggest associations with specific types of hassles. CONCLUSIONS: Our results expand understanding of the role of introversion in everyday experiences, suggesting an overall association between introversion and uplifts (but not hassles, broadly) in daily life. Better understanding of such connections may inform future research to determine mechanisms by which introversion relates to health.

Improving the Transition of Older Adults into Residential Aged Care: A Scoping Review.

OBJECTIVES: The transition into residential aged care (RAC) is often associated with loss, grief, isolation and loneliness. This scoping review aimed to identify quantitative research which focused on reducing the negative effects associated with transition, thereby improving the transition experience. METHODS: A scoping review, which concentrated on quantitative research, was conducted. MEDLINE, CINAHL andPSYCHINFO databases were searched using the initial search terms "olderadults", "residential aged care" and "transition". RESULTS: From the 457 original citations identified, four met the inclusion criteria. The interventions used a range of professionals and clinicians, diverse content, and a mixture of outcomes. The content of the more successful studies were underpinned by mental wellness themes and helped to reduce depressive symptoms among new residents. CONCLUSIONS: Our review provides a summary of interventions aimed at improving the transition experience for older adults moving into RAC and highlights gaps in the literature. This review is limited by the paucity of quantitative research in this area. Further research is required to address the negative psychosocial effects associated with transition into RAC. CLINICAL IMPLICATIONS: Assessing which of the transition phases an individual is in can help individualize interventions to reduce negative symptoms relating to transition.

Synchronization of human retinal pigment epithelial-1 cells in mitosis.

Human retinal pigment epithelial-1 (RPE-1) cells are increasingly being used as a model to study mitosis because they represent a non-transformed alternative to cancer cell lines, such as HeLa cervical adenocarcinoma cells. However, the lack of an efficient method to synchronize RPE-1 cells in mitosis precludes their application for large-scale biochemical and proteomics assays. Here, we report a protocol to synchronize RPE-1 cells based on sequential treatments with the Cdk4 and Cdk6 inhibitor PD 0332991 (palbociclib) and the microtubule-depolymerizing drug nocodazole. With this method, the vast majority (80-90%) of RPE-1 cells arrested at prometaphase and exited mitosis synchronously after release from nocodazole. Moreover, the cells fully recovered and re-entered the cell cycle after the palbociclib-nocodazole block. Finally, we show that this protocol could be successfully employed for the characterization of the protein-protein interaction network of the kinetochore protein Ndc80 by immunoprecipitation coupled with mass spectrometry. This synchronization method significantly expands the versatility and applicability of RPE-1 cells to the study of cell division and might be applied to other cell lines that do not respond to treatments with DNA synthesis inhibitors.

Pattern Recognition to Objectively Differentiate the Etiology of Cognitive Decline: Analysis of the Impact of Stroke and Alzheimer's Disease.

BACKGROUND: Undetected Alzheimer's disease (AD) and stroke neuropathology is believed to account for a large proportion of decline in cognitive performance that is attributed to normal aging. This study examined the amount of variance in age-related cognitive change that is accounted for by AD and stroke using a novel pattern recognition protocol. METHOD: Secondary analyses of data collected for the Health and Retirement Study (N = 17,579) were used to objectively characterize patterns of cognitive decline associated with AD and stroke. The rate of decline in episodic memory and orientation was the outcome of interest, while algorithms indicative of AD and stroke pathology were the predictors of interest. RESULTS: The average age of the sample was 67.54 ± 10.45 years at baseline, and they completed, on average, 14.20 ± 3.56 years of follow-up. After adjusting for demographics, AD and stroke accounted for approximately half of age-associated decline in cognition (51.07-55.6% for orientation and episodic memory, respectively) and explained variance attributed to random slopes in longitudinal multilevel models. DISCUSSION: The results of this study suggested that approximately half of the cognitive decline usually attributed to normal aging are more characteristic of AD and stroke.

Memory lapses in daily life among breast cancer survivors and women without cancer history.

OBJECTIVE: Cancer-associated cognitive decline is a concern among cancer survivors. Survivors' memory lapses (eg, location of keys, names, and reason entered room) may negatively impact quality of life. This study used smartphone-based surveys to compare cancer survivors to those without cancer history on frequency of, severity of, and affective response to daily memory lapses. METHODS: For 14 evenings, breast cancer survivors (N = 47, M age = 52.9) and women without a cancer history (N = 105, M age = 51.8) completed smartphone-based surveys on memory lapse occurrence and severity and negative and positive affect. RESULTS: Survivors were nearly three times more likely to report a daily memory lapse but did not differ from comparison group on memory lapse severity. Negative affect was significantly higher on days with memory lapses associated with doing something in the future (eg, appointments) but this did not differ across groups. Positive affect was not significantly related to survivorship status or the occurrence of daily memory lapses. CONCLUSION: Survivors may be at-risk for more frequent memory lapses. Both survivors and women without a history of cancer reported greater negative affect on days when memory lapses occurred, suggesting that daily cognitive functioning may have important implications for quality of life.

Emotional Responses to Stressors in Everyday Life Predict Long-Term Trajectories of Depressive Symptoms.

BACKGROUND: Individuals' emotional responses to stressors in everyday life are associated with long-term physical and mental health. Among many possible risk factors, the stressor-related emotional responses may play an important role in future development of depressive symptoms. PURPOSE: The current study examined how individuals' positive and negative emotional responses to everyday stressors predicted their subsequent changes in depressive symptoms over 18 months. METHODS: Using an ecological momentary assessment approach, participants (n = 176) reported stressor exposure, positive affect (PA), and negative affect (NA) five times a day for 1 week (n = 5,483 observations) and provided longitudinal reports of depressive symptoms over the subsequent 18 months. A multivariate multilevel latent growth curve model was used to directly link the fluctuations in emotions in response to momentary stressors in everyday life with the long-term trajectory of depressive symptoms. RESULTS: Adults who demonstrated a greater difference in stressor-related PA (i.e., relatively lower PA on stressor vs. nonstressor moments) reported larger increases in depressive symptoms over 18 months. Those with greater NA responses to everyday stressors (i.e., relatively higher NA on stressor vs. nonstressor moments), however, did not exhibit differential long-term changes in depressive symptoms. CONCLUSIONS: Adults showed a pattern consistent with both PA and NA responses to stressors in everyday life, but only the stressor-related changes in PA (but not in NA) predicted the growth of depressive symptoms over time. These findings highlight the important-but often overlooked-role of positive emotional responses to everyday stressors in long-term mental health.

Cognitive performance of breast cancer survivors in daily life: Role of fatigue and depressed mood.

OBJECTIVE: Cancer and its treatment are associated with long-term cognitive deficits. However, most studies of cancer patients have used traditional, office-based cognitive evaluations instead of assessing patients in their daily lives. Recent research in cognitive aging suggests that variability in performance may be a sensitive indicator of cognitive decline. Using ecological momentary assessment (EMA), we examined cognitive variability among breast cancer survivors and evaluated whether ratings of fatigue and depressed mood were associated with cognition. METHODS: Participants were 47 women (M age = 53.3 years) who completed treatment for early stage breast cancer 6 to 36 months previously. Smartphones were preloaded with cognitive tests measuring processing speed, executive functioning, and memory, as well as rating scales for fatigue and depressed mood. Participants were prompted five times per day over a 14-day period to complete EMA cognitive tasks and fatigue and depressed mood ratings. RESULTS: Cognitive variability was observed across all three EMA cognitive tasks. Processing speed responses were slower at times that women rated themselves as more fatigued than their average (P < .001). Ratings of depressed mood were not associated with cognition. CONCLUSIONS: This study is the first to report cognitive variability in the daily lives of women treated for breast cancer. Performance was worse on a measure of processing speed at times when a woman rated her fatigue as greater than her own average. The ability to identify moments when cognition is most vulnerable may allow for personalized interventions to be applied at times when they are most needed.

Understanding stress reports in daily life: a coordinated analysis of factors associated with the frequency of reporting stress.

Although stress is a common experience in everyday life, a clear understanding of how often an individual experiences and reports stress is lacking. Notably, there is little information regarding factors that may influence how frequently stress is reported, including which stress dimension is measured (i.e., stressors-did an event happen, subjective stress-how stressed do you feel, conditional stress-how stressful a stressor was) and the temporal features of that assessment (i.e., time of day, day of study, weekday vs. weekend day). The purpose of the present study was to conduct a coordinated analysis of five independent ecological momentary assessment studies utilizing varied stress reporting dimensions and temporal features. Results indicated that, within days, stress was reported at different frequencies depending on the stress dimension. Stressors were reported on 15-32% of momentary reports made within a day; across days, the frequency ranged from 42 to 76% of days. Depending on the cutoff, subjective stress was reported more frequently ranging about 8-56% of all moments within days, and 40-90% of days. Likewise, conditional stress ranged from just 3% of moments to 22%, and 11-69% of days. For the temporal features, stress was reported more frequently on weekdays (compared to weekend days) and on days earlier in the study (relative to days later in the study); time of day was inconsistently related to stress reports. In sum, stress report frequency depends in part on how stress is assessed. As such, researchers may wish to measure stress in multiple ways and, in the case of subjective and conditional stress with multiple operational definitions, to thoroughly characterize the frequency of stress reporting.

Extubation Failure and Tracheostomy Placement in Children with Acute Neurocritical Illness.

BACKGROUND: There is a lack of data describing the risk factors for extubation failure (EF) or tracheostomy placement in pediatric neurocritical care (NCC) patients. METHODS: A retrospective chart review of children admitted to the pediatric intensive care unit who were intubated for >24 h with an acute neurocritical illness and had an extubation attempt. Bivariate and multivariate statistical analysis was performed to determine significant associations of demographic, neurologic, pulmonary, and clinical variables with EF and tracheostomy placement. Analysis of predictive factors for EF (within 48 h) and tracheostomy placement during the hospitalization was conducted on a first extubation attempt group (n = 193) and a second attempt group (n = 23) who experienced either EF or a "late re-intubation" (>48 h-7 days). RESULTS: Traumatic brain injury (37.3%) and seizures/status epilepticus (31.4%) were the most common diagnoses with neuromuscular weakness patients having the highest risk for EF and tracheostomy placement. EF occurred in 20/193 (10.4%) patients after their first attempt and 6/23 (26.1%) after a second attempt. Compared to those with a fair/strong cough, patients with a weak/absent cough had a relative risk (RR) of 9.4 for EF (95% CI, 4.9-17.9, p < 0.001) and 6.7 (95% CI, 2.3-18.9, p = 0.01) for tracheostomy placement on the first and second attempts, respectively. Glasgow Coma Score (GCS), endotracheal tube (ETT) secretion characteristics, and pulmonary variables were not associated with EF or tracheostomy placement. CONCLUSIONS: A weak/absent cough reflex is associated with an increased risk of failing extubation and placement of a tracheostomy in intubated pediatric NCC patients.

The moderating effects of aging and cognitive abilities on the association between work stress and negative affect.

OBJECTIVES: Given that the association between work stress and negative affect can exacerbate negative health and workplace outcomes, it is important to identify the protective and risk factors that moderate this association. Socioemotional aging and cognitive abilities might influence how people utilize emotion regulation skills and engage in practical problem solving to manage their work stress. The aim of this study is to examine whether age and cognitive abilities independently and interactively moderate the association between work-related stress and negative affect. METHOD: A diverse working adult sample (N = 139, age 25-65, 69% of females) completed a cross-sectional survey that assessed chronic work stress, negative affect, and fluid and crystallized cognitive abilities. RESULTS: Results from regression analyses suggested that both fluid and crystallized cognitive abilities, but not age, moderated the association between work stress and negative affect. Further, we found that crystallized cognition had a stronger attenuating effect on the work stress-negative affect association for older compared to younger workers. The moderating effect of fluid cognition was invariant across age. CONCLUSION: Our findings demonstrate that cognitive abilities are an important personal resource that might protect individuals against the negative impacts of work stress and negative affect. Although the role that fluid cognition plays in work stress-negative affect association is comparably important for both younger and older workers, crystallized cognition might play a more valuable role for older than younger workers.

How We Experience Being Alone: Age Differences in Affective and Biological Correlates of Momentary Solitude.

BACKGROUND: Spending time alone constitutes a ubiquitous part of our everyday lives. As we get older, alone time increases. Less is known, however, about age differences in the experience of spending time alone (momentary solitude). OBJECTIVES: We examined time-varying associations between momentary solitude, affect quality, and two hypothalamic-pituitary-adrenal axis activity markers [salivary cortisol; dehydroepiandrosterone sulfate (DHEAs)] to better understand the affective and biological correlates of momentary solitude across the adult life span. METHOD: A total of 185 adults aged 20-81 years (mean age = 49 years, 51% female, 74% Caucasian) completed questionnaires on momentary solitude (alone vs. not alone) and current affect on a handheld device, and provided concurrent saliva samples up to seven times a day for 10 consecutive days. Data were analyzed using multilevel models, controlling for the overall amount of time participants spent alone during the study (overall solitude). RESULTS: Greater overall solitude was associated with decreased average high arousal positive affect and increased average cortisol and DHEAs levels. Momentary solitude was associated with reduced high arousal positive affect, increased low arousal positive affect, and increased low arousal negative affect. Age by momentary solitude interactions indicate that greater age was associated with increased high arousal positive affect and reduced low arousal negative affect during momentary solitude. Furthermore, momentary solitude was associated with increased cortisol and DHEAs. With greater age, the association between momentary solitude and cortisol weakened. CONCLUSION: Consistent with the negative connotations to loneliness and objective social isolation, greater overall solitude was associated with negative affective and biological correlates. Spending a large overall amount of time alone in old age might thus have negative ramifications for health and well-being. Momentary solitude, in contrast, can be a double-edged sword as evidenced by both positive and negative well-being implications. Importantly, greater age is linked to more favorable affective and biological correlates of momentary solitude. The momentary state of spending time alone is thus an experience that is not necessarily negative and that may improve with aging.

Neuroticism and Extraversion Magnify Discrepancies Between Retrospective and Concurrent Affect Reports.

OBJECTIVE: Although research often relies on retrospective affect self-reports, little is known about personality's role in retrospective reports and how these converge or deviate from affect reported in the moment. This micro-longitudinal study examines personality (Neuroticism, Extraversion) and emotional salience (peak and recent affect) associations with retrospective-momentary affect report discrepancies over different time frames. METHOD: Participants were 179 adults aged 20-78 (M = 48.7 years; 73.7% Caucasian/White) who each provided up to 60 concurrent affect reports over 10 days, then retrospectively reported overall intensity of each affective state after 1 day and again after 1-2 months. RESULTS: Multilevel models revealed that individuals retrospectively overreported or underreported various affective states, exhibiting peak associations for high arousal positive and negative affect, recency associations for low arousal positive affect, and distinct personality profiles that strengthened over time. Individuals high in both Extraversion and Neuroticism exaggerated high arousal positive and negative affect and underreported low arousal positive affect, high Extraversion/low Neuroticism individuals exaggerated high arousal positive affect and underreported low arousal positive affect, and low Extraversion/high Neuroticism individuals exaggerated high and low arousal negative affect. CONCLUSIONS: This study is the first to identify arousal-specific retrospective affect report discrepancies over time and suggests retrospective reports also reflect personality differences in affective self-knowledge.

The Effects of Stress on Cognitive Aging, Physiology and Emotion (ESCAPE) Project.

BACKGROUND: Despite evidence that psychological stress is an important risk factor for age-related cognitive loss, little research has directly evaluated psychological and physiological mediators of the relationship between stressful experiences and cognitive function. A key objective of the ESCAPE (Effects of Stress on Cognitive Aging, Physiology, and Emotion) project is to evaluate whether engaging in stress-related unconstructive repetitive thought (URT) is a pathway through which stressful experiences negatively affect cognitive health over the short- and long-term. Over the short-term, we hypothesize that engaging in URT will deplete attentional resources and result in worse cognitive performance in daily life. Over the long-term, we expect that the effects of chronic stress, from repeated exposure to stressors and regular engagement in URT, will be apparent in dysregulated hypothalamic-pituitary-adrenal (HPA) axis function and inflammation. Over time, stress-related physiological dysregulation will result in accelerated cognitive decline. METHODS/DESIGN: This study utilizes a prospective longitudinal measurement-burst design. A systematic probability sample of participants aged 25 to 65 is recruited from residents of the Bronx, NY. Consenting participants complete a baseline assessment and follow-up waves at 9, 18, and 27 months post-baseline. At each wave, participants complete a 14 day measurement burst of brief surveys and cognitive assessments delivered via study smartphones during daily life. Participants provide saliva samples four times each day for five days during the measurement burst and fasting blood samples at the end of each burst from which cortisol and dehydroepiandrosterone sulfate (DHEAS), circulating inflammatory markers, and stimulated inflammatory responses to lipopolysaccharide in whole blood are determined. DISCUSSION: This study takes a multi-pronged approach to assessing stress (i.e., early adversity, chronic strains, major events, daily hassles), psychological mediators (e.g., URT), biological mechanisms (i.e., HPA function, inflammation) and outcomes across different time-scales (i.e., momentary cognitive performance, cognitive decline across years). The systematic probability sample is locally representative and can be compared with national norms on key markers of health and well-being. The findings will improve our understanding of how environmental, psychological, and physiological stress-related influences accumulate to affect cognitive health and identify potential targets (e.g., URT, inflammation) for prevention and intervention promoting cognitive health.

Is Cancer a Risk Factor for Cognitive Decline in Late Life?

With advances in screening and early detection, coupled with improved treatment and care, the number of cancer survivors has risen exponentially over the past several decades. Moreover, because age is the most significant risk factor for cancer, the majority of cancer survivors are over 65 years of age. Finally, cancer survivors often experience significant health issues for many years after the treatment has subsided. In the current article, we describe select research that has focused on changes to cognitive performance associated with cancer and its treatment, i.e., alterations that have been colloquially referred to as chemobrain. Although understanding changes in cognitive performance following cancer treatment is an active area of inquiry, the experience of older adult cancer survivors has been somewhat neglected. For example, evidence is mixed as to whether changes in cognitive performance associated with normal aging are exacerbated by cancer survivorship status. It is also unclear whether a history of cancer makes it more or less likely that a person will be diagnosed with dementia or Alzheimer's disease in the future. Finally, we identify a number of areas where existing cognitive aging research can inform studies on cognitive performance following cancer treatment. Future efforts should be directed towards designing studies that focus on the experience of older adult cancer survivors and are informed by the clinical oncology and cognitive aging literature.

Eating behaviors and negative affect in college women's everyday lives.

OBJECTIVE: A growing body of research seeks to understand the relationship between mood and eating behaviors. Ecological Momentary Assessment (EMA) methods provide a method for assessing these processes in natural settings. We used EMA to examine the relationship between mood and eating behaviors in everyday life among women with subclinical disordered eating behaviors. METHOD: Participants (N = 127, age M = 19.6 years, BMI M = 25.5) completed five daily EMA reports on palmtop computers for 1 week. Assessments included measures of negative affect (NA) and eating-related behavior during eating (eating large amounts of food, loss of control over eating, and restricting food intake) and noneating episodes (skip eating to control weight/shape). Time-lagged multilevel models tested mood-eating behavior relationships. RESULTS: Higher NA did not precede any unhealthy eating and weight control behaviors. However, NA was higher when women reported eating large quantities of food, losing control over eating, and restricting food intake during their most recent eating episode, but not after skipping eating to control weight/shape. DISCUSSION: These findings elucidate the processes in daily life that may influence the development and maintenance of unhealthy eating and weight control behaviors that, in turn, can inform interventions.

The relationship between loneliness and the experiences of everyday stress and stressor-related emotion.

Loneliness influences how people experience and respond to stressors, which may account for its role as a risk factor for morbidity and mortality. The present study was motivated by emerging evidence that affective responses to minor daily events have long-term implications for health and well-being. Specifically, we evaluated how individual differences in loneliness relate to the frequency of everyday stressors and stressor-related negative emotions. A diverse community sample of 255 adults (age 25-65 years) completed ecological momentary assessments (EMA), during which they reported recent stressors and current negative affect (NA) five times a day for 14 days. Multilevel logistic analyses indicated that there was a quadratic association between loneliness and likelihood of reporting stressors, controlling for demographics, social isolation, depressive symptoms, and context (current activities, current location). Multilevel regression indicated that loneliness was unrelated to the concurrent effect of stressors on NA but significantly larger lagged stressor effects were observed among individuals in the low and high ranges of loneliness. These findings suggest that individuals with high levels of loneliness are more likely to experience everyday stressors and have prolonged emotional responses following stressors.

Exposure to neighborhood violence, and laboratory-based and ambulatory cognitive task performance in adulthood.

OBJECTIVE: Exposure to neighborhood violence may have negative implications for adults' cognitive functioning, but the ecological sensitivity of these effects has yet to be determined. We first evaluated the link between exposure to neighborhood violence and two latent constructs of cognitive function that incorporated laboratory-based and ambulatory, smartphone-based, cognitive assessments. Second, we examined whether the effect of exposure to violence was stronger for ambulatory assessments compared to in-lab assessments. METHODS: We used data from 256 urban-dwelling adults between 25 and 65 years old (M = 46.26, SD = 11.07); 63.18% non-Hispanic Black, 9.21% non-Hispanic White, 18.41% Hispanic White, 5.02% Hispanic Black, and 4.18% other. Participants completed baseline surveys on neighborhood exposures, cognitive assessments in a laboratory/research office, and ambulatory smartphone-based cognitive assessments five-times a day for 14 days. RESULTS: Exposure to neighborhood violence was associated with poorer performance in a latent working memory construct that incorporated in-lab and ambulatory assessments, but was not associated with the perceptual speed construct. The effect of exposure to neighborhood violence on the working memory construct was explained by its effect on the ambulatory working memory task and not by the in-lab cognitive assessments. CONCLUSION: This study shows the negative effect that exposure to neighborhood violence may have on everyday working memory performance in urban-dwelling adults in midlife. Results highlight the need for more research to determine the sensitivity of ambulatory assessments to quantify the effects of neighborhood violence on cognitive function.