Early Middle Adulthood Research Articles

The Eight Stages of Psychosocial Protective Development: Developmental Psychology

The proposed universal psychological mechanism for developmental psychology is the mental protective system whose different parts emerge and mature in the eight different stages of psychosocial protective development under different social interactions. The proposed eight stages of psychosocial protective development are childhood (infancy, toddlerhood, pre-juvenile age, and juvenile age), adolescence, early young adulthood, late young adulthood, early middle adulthood, late middle adulthood, early late adulthood, and late late adulthood. The mental protection system consists of four socialities (collectivistic, individualistic, interdependent, and generativity), three worldviews (territorial, competitive, and cooperative), and the mental immune system for four regulated and unregulated countermeasures (hyperactivity, phobia, comforter, and rationality) against adversities. During childhood, dependent children have collectivistic sociality under the protection of committed parents and territorial worldview with the boundary of family. Children start with the unregulated mental immune system without delayed gratification due to mental immaturity, and gradually acquire the regulated mental immune system with delayed gratification through mental maturity. Adolescents transit to adulthood. Independent adults have the regulated metal immune system, individualistic sociality with reciprocity, and competitive-cooperative worldviews without boundary. After the age of 50, older people as elder leaders-mentors develop generativity sociality to protect next generation. The paper shows that the mental protective system as the universal psychological mechanism for developmental psychology explains clearly psychosocial protective development, the human evolution, the Piaget’s cognitive development, the Erikson’s psychosocial (ego-social) development, the Confucius’ (educated person’s) six milestones of life, and parent-child relation in the Abrahamic religions (Judaism, Christianity, and Islam) and Confucianism.

Age at Menarche, Depression, and Antisocial Behavior in Adulthood.

Early pubertal timing in girls is one of the best-replicated antecedents of a range of mental health problems during adolescence, but few researchers have examined the duration of these effects. We leverage a nationally representative sample (N = 7802 women) managed prospectively from adolescence over a period of ∼14 years to examine associations of age at menarche with depressive symptoms and antisocial behaviors in adulthood. Earlier ages at menarche were associated with higher rates of both depressive symptoms and antisocial behaviors in early-middle adulthood largely because difficulties that started in adolescence did not attenuate over time. These findings indicate that the emotional sequelae of puberty extend further than documented in previous research, and suggest that earlier development may place girls on a life path from which it may be difficult to deviate. The American Academy of Pediatrics already provides guidelines for identifying and working with patients with early pubertal timing. Pediatricians and adolescent health care providers should also be attuned to early maturers' elevated mental health risk and sensitive to the potential duration of changes in mental health that begin at puberty.

Childhood adversities and post-traumatic stress disorder: evidence for stress sensitisation in the World Mental Health Surveys.

BackgroundAlthough childhood adversities are known to predict increased risk of post-traumatic stress disorder (PTSD) after traumatic experiences, it is unclear whether this association varies by childhood adversity or traumatic experience types or by age.AimsTo examine variation in associations of childhood adversities with PTSD according to childhood adversity types, traumatic experience types and life-course stage.MethodEpidemiological data were analysed from the World Mental Health Surveys (n = 27 017).ResultsFour childhood adversities (physical and sexual abuse, neglect, parent psychopathology) were associated with similarly increased odds of PTSD following traumatic experiences (odds ratio (OR) = 1.8), whereas the other eight childhood adversities assessed did not predict PTSD. Childhood adversity-PTSD associations did not vary across traumatic experience types, but were stronger in childhood-adolescence and early-middle adulthood than later adulthood.ConclusionsChildhood adversities are differentially associated with PTSD, with the strongest associations in childhood-adolescence and early-middle adulthood. Consistency of associations across traumatic experience types suggests that childhood adversities are associated with generalised vulnerability to PTSD following traumatic experiences.

Age differences and short-term stability in hope: Results from a sample aged 15 to 80

This study examines age differences in hope, from age 15 to 80years, and the short-term stability of hope using longitudinal data collected from 1453 Portuguese participants. Hope levels were higher in the middle adult groups than in the adolescent, emerging adult and older adult groups, and reached a peak between early-middle adulthood (ages 30–45) and late-middle adulthood (ages 46–64). Marital status and educational levels were examined as potential moderators of both hope levels and stability of hope. Results indicated that the most hopeful person may be a married adult between the ages of 30–64. Hope rank-order stability over a 1-year interval was moderate in the middle adolescent and early adult groups, showed a peak stability occurring from 30 to 45years of age, and was lower in old age than in the younger age groups. Together, these findings suggest that hope is relatively stable across time and the lifespan. Implications for our understanding of developmental trajectories of hope and how best to intervene to promote hope are discussed.

Poor, Rural Women: Spirituality, Religion, and Wellness Across the Life Span

Researchers have suggested strategies in the spiritual domain for improving wellness. This study explored relationships among spirituality, religiosity, and wellness for poor, rural women in early adulthood, early–middle adulthood, and middle–later adulthood. Implications for evidence-based strategies to improve wellness for poor, rural women across the life span are provided.

Blacks’ and Whites’ Experiences of Neighborhood Racial and Ethnic Diversity

The racial and ethnic diversity of American cities has increased sharply in recent decades. This study uses a unique longitudinal, cohort-comparison research design to investigate changes over the past three decades in the diversity and multigroup integration of Blacks’ and Whites’ neighborhoods between early and early middle adulthood. This study finds that the neighborhoods in which recent cohorts of Blacks and Whites reside are both more diverse and more integrated than were the neighborhoods of earlier cohorts. Although even in the most recent cohorts Blacks’ neighborhoods are more diverse and integrated than Whites’ neighborhoods, overall levels of racial and ethnic diversity and integration for Whites and Blacks are converging. However, the types of diversity and integration Whites and Blacks experience in their neighborhoods remain very different.

Structure and Continuity of Well-Being in Mid-Adulthood: A Longitudinal Study

The present study analyzed whether the tripartite model of well-being (Keyes in J Health Soc Res 43:207–222, 2002; Journal of Consulting and Clinical Psychology 73:539–548, 2005a) and low depression can be captured by a core factor. Furthermore, it examined whether well-being shows continuity from early middle adulthood to middle adulthood. The study was based on the Finnish Jyvaskyla Longitudinal Study of Personality and Social Development (Pulkkinen 2006), where the same participants (initial N = 369; 53% males) have been followed from age 8 until middle age. Data gathered at ages 36 and 42 were used. Well-being was indicated by (a) emotional well-being (including positive mood and low negative mood, satisfaction with different life-domains, and happiness); (b) Scales of Psychological Well-Being (Ryff in J Pers Soc Psychol 57:1069–1081, 1989); (c) Scales of Social Well-Being (Keyes in Soc Psychol Q 61:121–140, 1998); and (d) low level of depression. These measures were administered at both ages (except for social well-being, which was available only at age 42). The results, based on structural equation modeling, showed that a latent factor consisting of the above dimensions of well-being fit the data and that the structure of well-being was the same across genders and time. Well-being showed a high continuity from age 36 to 42 (standardized coefficient 0.84). As a conclusion, the different dimensions of well-being had only little variance of their own and a core factor of well-being was empirically established.

Early adulthood television viewing and cardiometabolic risk profiles in early middle age: results from a population, prospective cohort study

Little research has been done on the long-term longitudinal associations between markers of sedentary behaviour and health risks. We hypothesised that television (TV) viewing in early to mid-adulthood predicts an adverse cardiometabolic risk factor profile in middle age independently of participation in physical activity. We used prospective data from 5,972 (2,947 men) participants of the 1958 British Birth Cohort study. TV viewing and exercise frequency were obtained at age 23 years. Daily TV viewing and weekly moderate to vigorous physical activity were assessed at age 44 years, as well as HbA(1c), triacylglycerol, total and HDL-cholesterol, systolic and diastolic blood pressure, and waist circumference. We used generalised linear models and multiple linear regression to examine the associations between TV viewing at age 23 years and the cardiometabolic risk markers (including a clustered cardiometabolic risk score) at 44 years, while adjusting for sex, exercise participation and TV viewing at age 44 years, and other potential confounders. In the multivariable models, TV viewing frequency at age 23 years showed positive associations with C-reactive protein (generalised linear model change 12.6%, 95% CI 3.5, 22.8; p = 0.005), fibrinogen (change 1.8%, 95% CI 0.3, 3.3; p = 0.020), waist circumference (coefficient 1.17, 95% CI 0.32, 2.01; p = 0.004), systolic (coefficient 1.44, 95% CI 0.33, 2.54; p = 0.019) and diastolic (coefficient 0.75, 95% CI -0.01, 1.51; p = 0.053) blood pressure, and clustered cardiometabolic risk score (men only, coefficient 0.06, 95% CI 0.01, 0.11; p = 0.038). Adjustments for baseline (age 23 years) BMI attenuated these associations towards null. TV viewing habits in early adulthood are associated with adverse cardiometabolic profiles in early middle adulthood that are independent of TV viewing habits and physical activity in middle age, but not independent of BMI in early adulthood.

Acute and transient psychotic disorders (ICD-10 F23): a review from a European perspective

The tenth revision of the International Classification of Mental and Behavioural Disorders (ICD-10) introduced the category F23 'Acute and transient psychotic disorders' (ATPD) to incorporate clinical concepts such as the French bouffée délirante, cycloid psychosis (Germany), and the Scandinavian reactive and schizophreniform psychoses. The aim of this paper is to review the literature on ATPD and to examine how it has been differentiated from the other categories of F2 group 'schizophrenia and related disorders'. Papers published between 1993 and 2007 were found through searches in Medline, PsychInfo and Google Scholar. Further references were identified from book chapters and comprehensive reviews of the topic. ATPD is reported as being prevalent in females and as having onset in early-middle adulthood. Although follow-up studies suggest that its outcome is more favourable than other disorders in the F2 group, ATPD tends to recur and half of cases convert mainly into either schizophrenia or affective disorders. No evidence supports the view that the traditional conditions subsumed under ATPD all refer to this diagnostic category. The lack of defining features and poor prognostic validity argue against the separation of ATPD from borderland categories.

Cognitive leisure activities and their role in preventing dementia: a systematic review.

Dementia is a debilitating syndrome that inflicts a tremendous burden of care on one's family, individual caregivers, health care professionals and on the use of resources. Existing therapeutic interventions can only help control or reduce symptoms, and slow the disease's progression. Identifying protective factors or effective prevention strategies would result in considerable benefits. Participation in cognitive leisure activities has been implicated as a possible prevention strategy. The objective of the review was to establish best practice in relation to cognitive leisure activities in preventing dementia among older adults. Randomised controlled trials (RCTs), other experimental studies, cohort studies, case-controlled studies and cross-sectional studies were considered for the review.Participants of interest were adults aged 60 years and older with or without a clinical diagnosis of dementia, living in the community or residential care setting.The review focussed on any cognitive leisure activity that required a mental response from the individual taking part in the activity e.g. reading and playing board games.The primary outcome of the review was the presence or absence of dementia, determined by cognitive function tests, mental examination scores, DSM classification (Diagnostic and Statistical Manual of Mental Disorders), and other valid dementia diagnostic tools. A search for published and unpublished literature in the English language was conducted using all major electronic databases. There was no publication date restriction. A three-step search strategy was developed using MeSH terminology and keywords to ensure that all material relevant to the review was captured. The methodological quality of included studies was assessed by two reviewers, who appraised each study independently, using standard Joanna Briggs Institute (JBI) critical appraisal tools. Data was extracted from the studies that were identified as meeting the criteria for methodological quality using the standard JBI data extraction tools. Due to the heterogeneity of populations and interventions, meta-analyses were not possible and results are presented in narrative form. Thirteen longitudinal studies were included in the review. Studies were grouped by stage of adult life participation when interventions were undertaken i.e. early-middle adulthood and late life. Five out of six studies demonstrated a positive association between engagement in activities and a reduced risk of developing Alzheimer's disease (AD) when interventions were undertaken in middle adulthood and six out of seven studies produced a positive association for late life participation. Results indicated that some activities might be more beneficial than others.Actively participating in cognitive leisure activities during mid or late life may be beneficial in preventing the risk of dementia in the elderly however the evidence is currently not strong enough to infer a direct causal relationship.Participating in selected cognitive leisure activities may be more favourable than others but currently there is no strong evidence to recommend one over the other.

Physical Leisure Activities and their Role in Preventing Dementia: A Systematic Review.

Identifying protective factors or effective prevention strategies for dementia would result in considerable benefits by prolonging quality of life and reducing social burden. Current data suggests that participation in physical leisure activities may lower the risk of dementia by improving cognitive reserves. The objective of this review was to determine the best available evidence in relation to physical leisure activities in preventing dementia among older adults. Types of studies Randomised controlled trials (RCTs) and other experimental designs were considered for inclusion into the review. In the absence of clinical trials, other study designs such as cohort, case controlled and cross-sectional were considered. Only articles published in the English language were included with no publication date restriction.Types of participants Participants of interest were adults aged 60 and older with or without a clinical diagnosis of dementia, living in the community or residential care setting.Types of intervention This review considered studies that evaluated the effectiveness of any physical leisure activity in the prevention of dementia. Physical activities included gardening, playing sports, exercises, sightseeing and any other activities that required active movement of the body.Types of outcome measures The review considered studies that indicated the presence or absence of dementia as determined by cognitive function tests, mental examination scores, DSM classification (Diagnostic and Statistical Manual of Mental Disorders), and other valid dementia diagnostic tools. A search for published and unpublished literature in the English language was conducted using all major electronic databases. There was no publication date restriction. A three-step search strategy was developed using MeSH terminology and keywords to ensure that all material relevant to the review was captured. The methodological quality of included studies was assessed by two reviewers, who appraised each study independently, using standardised Joanna Briggs Institute (JBI) critical appraisal tools. Data was extracted from the studies that were identified as meeting the criteria for methodological quality using the standard JBI data extraction tools. Due to the heterogeneity of populations and interventions, results are presented in narrative form. Seventeen longitudinal studies were included in the review. Studies were grouped by stage of adult life participation when interventions were undertaken i.e. early-middle adulthood and late life. The evidence regarding the relationship between participation in physical activities during midlife and later life and the prevention of dementia was equivocal. The majority of studies showed limited benefits in engaging in physical activities and results indicated that some activities might be more beneficial than others. IMPLICATIONS FOR RESEARCH.

Predicting risky drinking outcomes longitudinally: what kind of advance notice can we get?

This paper summarizes the proceedings of a symposium presented at the 2005 Research Society on Alcoholism meeting in Santa Barbara, California, that spans the interval from toddlerhood to early middle adulthood and addresses questions about how far ahead developmentally we can anticipate alcohol problems and related substance use disorder and how such work informs our understanding of the causes and course of alcohol problems and alcohol use disorder. The context of these questions both historically and developmentally is set by Robert Zucker in an introductory section. Next, Maria Wong and colleagues describe the developmental trajectories of behavioral and affective control from preschool to early adolescence in a high risk for alcoholism longitudinal study and demonstrate their ability to predict alcohol and drug outcomes in adolescence. Duncan Clark and Jack Cornelius follow with a report on the predictive utility of parental disruptive behavior disorders in predicting onset of alcohol problems in their adolescent offspring in late adolescence. Next, Kenneth Leonard and Gregory Homish report on adult development study findings relating baseline individual, spouse, and peer network drinking indicators at marriage onset that distinguish different patterns of stability and change in alcohol problems over the first 2 years of marriage. In the final paper, John Schulenberg and colleagues, utilizing national panel data from the Monitoring the Future Study, which cover the 18- to 35-year age span, show how trajectories of alcohol use in early adulthood predict differential alcohol abuse and dependence outcomes at age 35. Finally, Robert Zucker examines the degree to which the core symposium questions are answered and comments on next step research and clinical practice changes that are called for by these findings.

The intersection of life stage and social events: personality and life outcomes.

Two studies examined the intersection of life stage with the experience of social events. Study 1 tested whether social events coinciding with early adulthood are more meaningful to individuals than events during other life stages (K. Mannheim, 1972; A. J. Stewart & J. M. Healy, 1989). In 4 of 5 samples of college-educated women (3 age cohorts), the hypothesis was supported. Study 2 examined the impact of the women's movement on the personalities and careers of women who experienced the movement during early adulthood versus early middle adulthood. Women in both cohorts who found the movement meaningful attained higher education, work status, and income levels; were employed in upwardly mobile careers; and were more assertive and self-confident at midlife than women who found the movement less important. Consistent with hypotheses, finding the women's movement meaningful was associated with personality change in the older cohort.