Idiodynamic Profiles of Cardiovascular Activity: A P-technique Approach

A study was conducted to expand the conventional view of cardiovascular (CV) reactivity by using the idiodynamic paradigm for investigation of individuals. Patterns of autonomic CV regulation were assessed in six subjects across diverse laboratory tasks on three separate occasions. Individual CV profiles were derived from these data with P-technique factor analysis, and then group aggregated with chain P-technique. The composite pattern suggested a three-component solution consisting of cardiac rate, cardiac contractility, and peripheral resistance factors. Individual profiles were compared to the composite pattern; these profiles differed in the number of components derived, percentage variance explained by these components, and relative dominance of specific CV components. A hypothesis that emerged is that the subjects differed in the complexity of CV control. It appears that the idiodynamic framework, combined with novel research designs and statistical methods, may help expand the view of CV reactivity beyond the traditional unitary view as response magnitude.     

“大五”人格剖面：以个体为中心的研究路径

“大五”人格剖面是“大五”人格特质在个体上的高低组合, 充分考虑了人格特质之间的交互作用, 能够反映不同子群体在“大五”人格特质上的数量与质量差异, 是解释以往以变量为中心矛盾性结论的重要途径, 也更契合组织管理实践需要, 对实践有更强的指导意义。“大五”人格剖面数量受到研究情境、样本特征、研究方法等因素的影响, 基于自我适应-自我管理模型可以获取4剖面模型, 且常见的剖面包括灵活适应剖面、普通剖面与执拗剖面。“大五”人格剖面在研究中更多地扮演自变量角色, 探讨其在关键结果变量上是否存在差异。未来可以关注强化“大五”人格剖面研究的理论基础; 加强重复性研究, 识别普适性“大五”人格剖面; 识别“大五”人格剖面的影响因素; 纳入更多人格变量, 更完整刻画人格剖面。     

Motivation profiles at work: A self-determination theory approach

Self-determination theory proposes that individuals experience distinct types of motivation to varying degrees. While it is well documented that these types of motivation differentially predict outcomes, very little attention has been paid to how they interact within individuals. The current study addresses the simultaneous occurrence of multiple motivation types within individual workers by adopting a person-centered approach on two samples of employees from different countries (n = 723 & 286). Four very similar motivation profiles were found across samples, representing balanced motivation, amotivated, autonomously regulated and highly motivated employees. In Sample 1, governmental employees presented a greater likelihood of membership in the least desirable amotivated profile. In Sample 2, autonomously and highly motivated profiles showed superior work performance and higher levels of wellbeing, while the amotivated profile fared the worst. The presence of external regulation in a profile appears unimportant when combined with autonomous forms of motivation, and detrimental to outcomes in the absence of autonomous forms of motivation. These results support the hypothesis that autonomous forms of motivation are far more important in promoting positive workplace outcomes than more controlling forms.     

The Recoverability of P-technique Factor Analysis

It seems that just when we are about to lay P–technique factor analysis finally to rest as obsolete because of newer, more sophisticated multivariate time-series models using latent variables—dynamic factor models—it rears its head to inform us that an obituary may be premature. We present the results of some simulations demonstrating that even though it does not explicitly model lagged information, P–technique's ability to recover the parameters of underlying dynamic processes involving lagged relations among the manifest variables is apparently robust and accurate. An empirical example is presented using 103 days of affective mood self-ratings from a young pregnant woman. Implications of the simulation and empirical findings are briefly discussed.     

Obesity, cardiovascular fitness, and physically active adolescents’ motivations for activity: A self-determination theory approach

Objectives

Overweight and obesity pose significant health problems for adolescents. Rates of overweight and obesity in children have increased 45% in the last decade and have increased three-fold since 1980. Because children who are physically active are at lower risk for the development of obesity, it is important to understand some of the factors that influence children’s physical activity patterns. The purpose of this study was to examine the relationship between motivation, cardiorespiratory fitness, and weight status, defined as obese or non-obese. We predicted that the association between motivation and weight status would become non-significant when controlling for cardiorespiratory fitness.

Design

The study employed a correlational, cross-sectional design.

Method

Participants included physically active middle school students (N = 82. 51% female) of aged 12–14 years, who participated in the Teen Eating and Activity Mentoring in Schools (TEAMS) study aimed at improving health and preventing obesity among middle school students. Students completed attitudinal questionnaires about physical activity and self-determination on a computer-based system and participated in a number of fitness performance, health behavior, and anthropometric assessments.

Results

Non-obese adolescents showed higher intrinsic motivation scores than obese adolescents. Mediational analyses showed that cardiorespiratory fitness mediated the relationship between motivation and weight status.

Conclusions

The results of this study demonstrate differences in physical activity motivation as a function of adolescent weight status, but only for intrinsic motivation. As predicted, adolescents who were intrinsically motivated for physical activity were more fit and thereby less likely to be obese. The findings are consistent with self-determination theory.     

Variations in decision-making profiles by age and gender: A cluster-analytic approach

Using cluster-analysis, we investigated whether rational, intuitive, spontaneous, dependent, and avoidant styles of decision making (Scott & Bruce, 1995) combined to form distinct decision-making profiles that differed by age and gender. Self-report survey data were collected from 1075 members of RAND’s American Life Panel (56.2% female, 18–93 years, M_age = 53.49). Three decision-making profiles were identified: affective/experiential, independent/self-controlled, and an interpersonally-oriented dependent profile. Older people were less likely to be in the affective/experiential profile and more likely to be in the independent/self-controlled profile. Women were less likely to be in the affective/experiential profile and more likely to be in the interpersonally-oriented dependent profile. Interpersonally-oriented profiles are discussed as an overlooked but important dimension of how people make important decisions.     

From career decision-making styles to career decision-making profiles: A multidimensional approach

Previous research on individual differences in career decision-making processes has often focused on classifying individuals into a few types of decision-making styles based on the most dominant trait or characteristic of their approach to the decision process (e.g., rational, intuitive, dependent; Harren, 1979). In this research, an alternative approach, which offers a multidimensional profile characterization of individuals’ career decision-making processes based on a simultaneous consideration of 11 dimensions, is presented. Thus, the proposed model refers to career decision-making profiles rather than career decision-making styles. The model, which emerged from a systematic analysis of previous research, was refined on the basis of preliminary empirical tests (five samples, N = 2764) using the Career Decision-Making Profile (CDMP) questionnaire. Study 1 reports the psychometric properties and the results of an exploratory factor analysis of the CDMP questionnaire, in a sample of young adults deliberating their career decisions (N = 285). Study 2 presents the results of a confirmatory factor analysis, based on Israeli (N = 431) and US (N = 208) samples of young adults. The results of both studies supported the hypothesized 11 dimensions. The implications for future research and for counseling are discussed.     

Thinking about smoking: A novel approach to describing cognitive style profiles

Cognitive-Experiential Self-Theory (CEST) emphasizes the dual roles of rational and experiential thinking, with individuals having varying preferences for each style. This study explored the relationship between these constructs, illustrating the value of the derived model in addictive behavior, as illustrated by smoking. Data were extracted from a study of the predictors of men’s health behavior. Participants comprised 212 Australian men (aged 25–65 years) who completed a self-report questionnaire which assessed thinking styles and recorded smoking status. Rational and experiential data were subjected to cluster analysis and median splits to identify logical subgroups based on participants’ dual responses. The four derived clusters were more representative of smoking status than groups defined by median splits. In general, both smokers and ex-smokers preferred experiential thinking and non-smokers preferred rational thinking. There was a strong tendency for smokers to report both low rational and high experiential thinking. The use of cluster analysis advanced the evaluation of the interactive nature of rational and experiential thinking by allowing an empirical test of their potential relationship. The thinking profiles reported represent an advance in the assessment of CEST which may provide a useful model for applications in fields both related to, and beyond, addiction.     

Multidimensional eating profiles associated with personality traits during emerging adulthood: A cluster-analytic approach

IntroductionPersonality traits can give a fuller understanding for eating behaviors, such as food choice, (un)healhty eating.ObjectiveTo examine eating styles with a multidimensional perspective considering cognitive, affective and conative (or behavioral) components of eating styles in emerging adulthood, and how they may be related to the Big Five and impulsivity traits.MethodsSelf-reported questionnaires were used to explore the association between the eating styles, Big five traits and facets of impulsivity among young French adults (n = 450; Mean Age = 20.84 years; SD = 2.4, with 79.6% of women).ResultsOn the basis of cluster analysis, six eating styles were identified: Healthier, Uninhibited, Dysregulated, Stress-related, Restrictive and Ethical restraint eaters. Results suggest that Uninhibited eaters reported lower scores on Conscientiousness and higher scores on Negative and Positive urgency. The Dysregulated group had lower scores on Extraversion, and high scores on Neuroticism, Negative urgency and Lack of premeditation. Restrictive eaters showed low levels of Openness and Lack of premeditation. The Ethical restraint style was characterized by low scores on Agreeableness and Positive urgency. The ability or inability to cope with both emotional distress and positive and negative impulsive behaviors was related to young adult's eating cognitions and behaviors.ConclusionConsidering the existence of subtypes of eaters and separate associated personality-related traits, an individual differences perspective (e.g., age, gender, disposition to control one's emotional experiences) should be incorporated.     

The influence of body dissatisfaction on cardiovascular and strength-based physical activity by gender: a self-determination theory approach

Abstract

Physical activity—or lack thereof—is one behaviour that may help explain why individuals who are dissatisfied with their bodies experience poor health outcomes. Objective: The purpose of the present study was to examine the mediating role of behavioural regulations (i.e., autonomous and controlled) in the relation between body dissatisfaction and physical activity and to determine whether this mediated relationship was moderated by gender. Additionally, this relation was examined for both cardiovascular and strength-based physical activity. Design: A two-week daily-diary study was conducted. Measures: The Body Shape Satisfaction Questionnaire, the Behavioural Regulation in Exercise Questionnaire – 3, and the International Physical Activity Questionnaire were used to test the main hypotheses. Results: For men and women, body dissatisfaction was related to less frequent cardiovascular and strength-based activity due to lower levels of intrinsic regulation. In women, the relation between body dissatisfaction and activity (cardiovascular and strength-based) was partially mediated by controlled regulations (i.e., external and introjected). That is, women who were dissatisfied exercised more because they were more likely to feel that they had to appease others or themselves. Conclusion: The present study provides direction for targeting physical activity behaviours in college students who are dissatisfied with their bodies.     

Physical activity and motor skills in children: A differentiated approach

Being physically active plays an essential role in a child's physical development. While there is ample evidence for a positive association between physical activity (PA) and motor skills in children, the question of how PA should be implemented to optimally foster motor skill proficiency is less clear. To address this gap, the current longitudinal study compared four groups of children with different patterns of leisure-time PA engagement—namely children engaging in either structured PA, unstructured PA, a combination of structured and unstructured PA, or no PA at all—with respect to their gross and fine motor skill development. Results of repeated measures mixed modeling procedures revealed that engaging in structured PA—either exclusively or in combination with unstructured PA—is beneficial for children's gross motor development, whereas engaging in unstructured PA lacks such effectiveness. As to fine motor skills, a beneficial tendency of structured PA was observed as well. Hence, PA seems to be beneficial for motor skill development particularly when implemented in a formal setting with guided opportunities for practice. In conclusion, regularly engaging in structured PA constitutes a promising way to promote motor skills and support motor development over the long term.     

Models of personality and disease: an interactional approach to type A behavior and cardiovascular risk

Type A behavior has been established as a risk factor for coronary heart disease. Enhanced cardiovascular and neuroendocrine responsiveness to stressors has been suggested as a pathophysiological link between the behavior pattern and disease. The present article describes a model that places this link in an interactional context. Specifically, it is hypothesized that via cognitive and overt behaviors, Type As construct a subjective and objective environment rich in those classes of stimuli known to elicit enhanced physiological reactivity. This approach differs from previous ones by emphasizing that the Type A pattern represents an ongoing process of challenge and demand engendering behavior. That is, Type A persons do not simply respond to challenges and demands; they seek and create them through their cognitions and actions. This constructed environment also elicits and maintains further Type A behavior. The present view of Type A behavior as a challenge and demand engendering style is contrasted with other conceptual approaches, and implications are discussed.     

Gender and cardiovascular disease: a psychobiological and integrative approach

Coronary artery disease is the most common cause of morbidity, mortality, and economic loss in all industrialized countries. Although there are gender differences in the prevalence, causes, symptoms, treatment, and outcome of heart disease, the differences are complex and often misunderstood. These gender differences are a function of psychological influences, physiological influences, and an interaction of the two. Understanding these complex interactions and how they differentially influence the development and progression of heart disease will ultimately contribute to a greater understanding of how to integrate information from medicine and epidemiology with that from psychology and behavioral medicine. Ultimately, it is this integrated approach that will allow us to better understand heart disease in both men and women.     

Intraindividual differences dimensions of mood change during pregnancy identified in five P-technique factor analyses

Daily-self-ratings of mood and state were obtained for approximately 120 days of observation from five pregnant subjects. Measurements were based on a total pool of 75 adjectives culled from the literature to represent eight dimensions of affect established in primarily cross-sectional studies. The data were analyzed in a P-technique factor analysis context to determine both the extent to which interindividual differences and intraindividual variability concepts were interchangeable and how general such intraindividual variability concepts were among different subjects. Although evidence was found that subjects construe many adjectives differently, for dimensions such as Energy, Well Being, Fatigue, and Concentration, the data indicate that cross-sectionally and longitudinally based personality concepts exhibit a fair degree of convergence.     

Intraindividual variability in perceived locus of control in adults: P-technique factor analyses of short-term change

Multivariate correlational methods such as P-technique factor analysis provide a way to structure intraindividual change by identifying dimensions of covariation in intensive longitudinal measurements. For example, for 20 years or more researchers have acknowledged that some major personality constructs such as anxiety exhibit both trait (relatively stable, interindividual) and state (intraindividual) variability. However, the consideration that state variability might be quite general and can “intrude” in the measurement of putatively more stable attributes has not generally entered into construct validation work and other manifestations of theoretical development. Locus of control, as with many personality constructs, is considered to be a dimension of relatively stable interindividual differences. Levenson's three-dimensional locus of control scale was adapted for use in a measurement-intensive P-technique study involving 10 participants (5 mothers and fathers who were expecting their first child) to examine the extent to which responses manifested systematic liability. The data indicated that perceived locus of control exhibits coherent, day-to-day variability; especially the dimensions identified as internality and powerful others. Such state variation manifestations are discussed in relation to their important implications for measurement, long-term prediction, and theorizing about the nature of personality.     

Toward adjustment profiles for lower secondary student-athletes in the Finnish dual career context: A mixed-methods approach

Engagement, burnout, and experiences are central concepts for understanding student-athlete adjustment in a dual career (DC) environment. As part of a larger 3-year, lower secondary sports schools pilot project, the aim of this study was to examine student-athletes’ DC adjustment in Finnish lower secondary sports schools at the end of the second academic year. By combining quantitative and qualitative methods, we sought to (a) identify adjustment profiles among student-athletes based on measures of engagement and burnout in school and sport and (b) to extract experiences that describe the distribution of student-athletes in the profiles. A latent profile analysis using questionnaire data from a sample of 217 lower secondary student-athletes (M = 14 years, SD = 0.4 years) revealed three distinct profiles: well-adjusted (n = 122), reasonably functioning (n = 73), and struggling (n = 22). Follow-up interviews with a subsample of 19 student-athletes revealed that occasional physical exhaustion and school-related stress were common adjustment issues for student-athletes in all three profiles. Student-athletes showing the well-adjusted profile reported advanced DC management skills that enabled them to maintain low levels of burnout while engaging extensively in school and sport. Adolescents in the reasonably functioning profile reported difficulties in portioning time and thoughts between school and sport, which caused physical and mental DC taxation. To compensate for insufficient time management strategies, adolescents belonging to the struggling profile had to emancipate time for schoolwork by lowering their sports engagement at the cost of heightened school and sport burnout.     

Building cardiovascular disease competence in an urban poor Ghanaian community: A social psychology of participation approach

This paper describes conceptual, methodological, and practical insights from a longitudinal social psychological project that aims to build cardiovascular disease (CVD) competence in a poor community in Accra, Ghana's capital. Informed by a social psychology of participation approach, mixed method data included qualitative interviews and household surveys from over 500 community members, including people living with diabetes, hypertension, and stroke, their caregivers, health care providers, and GIS mapping of pluralistic health systems, food vending sites, bars, and physical activity spaces. Data analysis was informed by the diagnosis‐psychosocial intervention‐reflexivity framework proposed by Guareschi and Jovchelovitch. The community had a high prevalence of CVD and risk factors, and CVD knowledge was cognitive polyphasic. The environment was obesogenic, alcohol promoting, and medically pluralistic. These factors shaped CVD experiences and eclectic treatment seeking behaviours. Psychosocial interventions included establishing a self‐help group and community screening and education. Applying the “AIDS‐competent communities” model proposed by Campbell and colleagues, we outline the psychosocial features of CVD competence that are relatively easy to implement, albeit with funds and labour, and those that are difficult. We offer a reflexive analysis of four challenges that future activities will address: social protection, increasing men's participation, connecting national health policy to community needs, and sustaining the project.     

Hippocampal modulation of nucleus accumbens: behavioral evidence from amphetamine-induced activity profiles

The experiments examined amphetamine-induced locomotion and stereotyped behavior in hippocampal-ablated and control rats for 30 days following surgery. Locomotor counts, stereotypy ratings, and locomotor-time profiles showed that d-amphetamine sulfate produced a selective enhancement of locomotion (cage crosses) at the expense of stereotyped behavior in hippocampal rats relative to normal control rats. This enhancement emerged over the first 2 weeks postsurgery. To examine the role of the striatum in this amphetamine-induced effect, combined hippocampal damage and 6-hydroxydopamine-induced damage of the nucleus accumbens or caudate-putamen were used. These results suggested that amphetamine-enhanced locomotion of hippocampal rats is dependent upon the integrity of the nucleus accumbens and may reflect a change of nucleus accumbens activity relative to caudate-putamen activity. Together these findings suggest that the hippocampus may participate in the control of locomotion by projections that modulate the activity of the nucleus accumbens.     

P-technique factor analyses of the Multiple Affect Adjective Check List (MAACL)

The Multiple Affect Adjective Check List (MAACL) has been found to have five first-order factors representing Anxiety, Depression, Hostility, Positive Affect, and Sensation Seeking and two second-order factors representing Positive Affect and Sensation Seeking (PASS) and Dysphoria. The present study examines whether these first- and second-order conceptions of affect (based on R-technique factor analysis) can also account for patterns of intraindividual variability in affect (based on P-technique factor analysis) in eight elderly women. Although the hypothesized five-factor model of affect was not testable in all of the present P-technique datasets, the results were consistent with this interindividual model of affect. Moreover, evidence of second-order (PASS and Dysphoria) and third-order (generalized distress) factors was found in one data set. Sufficient convergence in findings between the present P-technique research and prior R-technique research suggests that the MAACL is robust in describing both inter- and intraindividual components of affect in elderly women.This paper is based on the doctoral research of the first author and was partially supported by the National Institute of Aging Grant T32 AC 00048-12 to The Pennsylvania State University and a Grant-in-Aid of Research from Sigma Xi, The Scientific Research Society. The authors wish to thank John R. Nesselroade for his helpful comments on an early draft of this paper.