Am stressed,must travel: The relationship between mode choice and commuting stress

The stress of commuting has serious public health and social implications. By comparing stress across different modes it is possible to determine which modes are more heavily contributing to this potential health and social issue. This study uses a large-scale university travel survey to compare commuter stress across three modes of transportation (walking, driving, and using public transit). It also investigates the specific factors that contribute to stress using these modes. Using ordered logistic regressions, the study develops a general model of stress and three mode-specific models. Results show that driving is the most stressful mode of transportation when compared to others. We also find that stressors for some modes are not stressors for others. Knowing which specific factors make certain modes stressful will help transportation and public health professionals make commuting a safer, more enjoyable, and less stressful activity; in turn this could mitigate the potentially serious health outcomes of a stressful commute.     

Emotional dimensions as determinants of self-focused attention

Negative emotions, and particularly sadness, have been found to induce self-focused attention among both depressed and normal individuals. However, positive emotion, such as happiness, is sometimes found to have a similar effect. The present study examines the effect of emotion on self-focus induction by looking separately at the emotional dimensions of valence and arousal. It postulates that arousal would be even more potent than valence in increasing self-focus, since it increases the salience of the self. Results of Experiment 1 showed that emotions that are both intense and negative, such as fear, induce the most self-focus, but pleasant relaxation also resulted in increased self-focusing. Experiment 2, using a similar design, replicated the arousal effect, and showed that fear and joy, the two most arousing emotions resulted in the most self-focus.     

Personality dimensions and subjective well-being

This work examines the association between personality dimensions (extraversion and neuroticism) and subjective well-being. Subjective well-being is associated both with extraversion and neuroticism, and currently, neuroticism is generally considered the more important. A total of 368 students from the University of Rovira i Virgili completed the Extraversion and Neuroticism subscales of the revised Eysenck Personality Questionnaire (Eysenck, Eysenck, and Barrett, 1985), the Satisfaction with Life Scale (SWLS; Diener, Emmons, Larsen, and Griffin, 1985), and the Positive and Negative Affect Scale (Watson, Clark, and Tellegen, 1988). Regression analyses revealed the personality variable of neuroticism as one of the most important correlates of subjective well-being. Regression analyses also showed that 44% of the variance of subjective well-being was accounted for by neuroticism, whereas extraversion only explained 8% of the variance.     

Interaction of labyrinthine and somatoreceptor inputs as determinants of the subjective vertical

Summary Subjects were investigated in a bed rotatable about two axes. With the head erect and the body in a standing, semi-prone or prone position (= pitch) the subject was tilted to the right to one of eight positions between 0° and 150° of roll. During eight minutes the subject aligned a luminous line with the subjective vertical (SV). Differences in the SV between the pitch positions of body were significant for roll tilts above 90°. Individuals differed in the way the SV changed between 90° and 150°, in the scatter in the settings from repeated experiments, and in the degree of influence of pitch positions (= somatoreceptor stimulation). The SV exhibited a distinct time-dependence which was different at tilts below 70° and above. It is concluded that from the two determinants of the SV one (somatoreceptors) loses effectiveness in time because of adaptive processes, while the other (labyrinth) loses effectiveness with increasing deviation of head position from the normal upright; their relative weighting differs from individual to individual.     

Home environmental consequences of commute travel impedance

The physical and perceptual dimensions of commuting travel impedance were again found to have stressful consequences in a study of 99 employees of two companies. This quasi-experimental replication study, which focuses here on home environment consequences, investigated the effects of physical impedance and subjective impedance on multivariate measures of residential satisfaction and personal affect in the home. Both sets of residential outcome measures were significantly related to the two impedance dimensions. As predicted, gender was a significant moderator of physical impedance effects. Women commuting on high physical impedance routes were most negatively affected. Previously found subjective impedance effects on negative home mood, regardless of gender, were strongly replicated with several methods and were buttressed by convergent results with objective indices. The theoretical conjecture that subjective impedance mediates the stress effects of physical impedance was supported by the personal affect cluster but only for one variable in the residential satisfaction cluster. Traffic congestion has increased in metropolitan areas nationwide, and commuters, families, and organizations are absorbing associated hidden costs. The results are reviewed in terms of our ecological model, and the moderating effects of gender are discussed in terms of choice and role constraints.     

Objective determinants of perceived social support

Objective characteristics of people's social networks were examined as determinants of the perceived availability of social support in two populations: elderly adults (n = 50) and mothers of 1-year-olds (n = 71). Number of network members and frequency of contact with network members, computed separately for kin and nonkin were examined as predictors of loneliness, overall social support, and the six components of social support proposed by Weiss (1974). Kin were found to be more effective providers than nonkin of some aspects of social support. Network characteristics were better predictors of perceived social support for the elderly than for the mothers, but a maximum of 30% of the variance in perceived social support was attributable to the objective network characteristics in either sample. It is recommended that future research on the determinants of perceived social support consider actual interpersonal behaviors, their contexts, and personality characteristics that affect the facilitation an interpretation of supportive behaviors.     

Objective and subjective assessments of parenting in hyperactive preschoolers

Objective: To evaluate whether the mother–child interactions of hyperactive preschool children and their typically developing peers differentially vary as a function of situational demands, and whether groupwise differences exist with respect to disciplinary practices and family lifestyles (e.g. level of parental investment, strategies for responding to child‐initiated provocation). Methods: Parenting practices were assessed via videotaped parent–child interactions and self‐report methods in mother–child dyads of 21 hyperactive preschoolers and 48 age‐matched control dyads. Results: Hyperactive preschoolers were significantly more non‐compliant during parent–child interactions. Mothers of hyperactive preschoolers exhibited more negative behaviour and less encouragement with heightened situational demands. Although few significant differences were reported regarding disciplinary practices, parents of hyperactive preschoolers reported greater levels of anger and child rearing difficulty, and perceived their children as more bothersome. Conclusions: Parents of hyperactive preschoolers may profit from interventions that are sensitive to the impact of situational changes on their behaviour and which address possible attributional biases regarding the source of parent–child discord. Copyright © 2006 John Wiley & Sons, Ltd.     

Discontented people: reactivity and locus of control as determinants of subjective well‐being

This study examines the effects of reactivity temperament and locus of control variables on subjective well‐being (SWB). SWB is operationalized as positive affect, the absence of somatic concerns, and heightened life satisfaction. The study hypotheses were that (1) reactivity and locus of control influenced SWB and that (2) affect either mediated or moderated the influence of these traits on SWB. As expected, high reactivity and external locus of control were associated with lower SWB, whereas low reactivity and internal locus of control were associated with higher SWB. However, the data indicate that reactivity and locus of control influenced different components of SWB and that locus of control predicted SWB more consistently than reactivity. Somatic health is influenced by reactivity, locus of control and negative affect, but not positive affect. Current life satisfaction is influenced by locus of control—but not reactivity—and by both positive and negative affect. Hope is related to reactivity but not to either locus of control or affect. The data corroborate the expectation that affect serves as a mediator in the trait—SWB relations, whereas the view that affect moderates the effect of stable dispositions on SWB finds scant support. Copyright © 2001 John Wiley & Sons, Ltd.     

The influence of control and related variables on commuting stress

Existing research on commuting stress has shown that it is affected by variables such as control, predictability, the duration of the commute and impedance. The present study investigates the impact of several factors on the stress that commuters experience and clarifies possible relations between variables. For the purpose of this study, an online questionnaire was completed by 363 commuters of the Vienna region. The relative strength of the relationship between predictors and commuting stress was determined by multiple regression analysis. Results suggest that control is the most powerful predictor of commuting stress, followed by the duration of the commute, predictability and impedance. Control significantly interacts with the duration of the commute and predictability. Based on these findings a research model is proposed, clearly depicting the moderating impact of the duration of the commute and incorporating a clear distinction between predictability and control.     

Parenting stress and marital relationship as determinants of mothers' and fathers' parenting

Using the actor–partner interdependence model, we explore how various sources of stress and support experienced by fathers and mothers influence their own parenting styles and the parenting styles of the partner. Data from 227 couples were analyzed, with mothers and fathers rating their parenting stress and marital relationship and children rating the parenting styles of both mothers and fathers. Structural equation models revealed actor effects of parenting stress on demanding and responsive parenting styles, as well as partner effects between positive aspects of marital relationship and responsive parenting style. The results further indicate that the strength of these pathways is similar for both mothers and fathers and do not support the hypothesis that the parenting of fathers is more vulnerable than the parenting of mothers.     

Similarity of rectangles: An analysis of subjective dimensions

Two defining properties of psychological dimensions (intradimensional subtractivity and interdimensional additivity) are introduced and their consequences, formulated in terms of an ordinal dissimilarity scale, are derived. These consequences are investigated using dissimilarity judgments between rectangles to determine which of two alternative dimensional structures area (A) and shape (S), or width (W) and height (H), satisfies additivity and/or subtractivity. The results show that neither dimensional structure is acceptable, although A × S provides a better account for the data of most Ss than does W × H. Tests of relative straightness show that A is the least “curved” of the four attributes. Methodological and substantive implications of the study are discussed.     

Objective and subjective complexity measures for a new population of patterns

A method of generating two-element matrix patterns having varying degrees of internal constraint is described. The method was used to generate a set of 9 × 9 matrix patterns of black and white squares in approximately equal proportion, ranging from very simple to very complex. Three sets of objective complexity measures were developed, the first two within,the framework of information theory and the third based on symmetry and grouping of identical elements. Multiple regression between the objective measures and subjective complexity scale values obtained in three separate experiments indicated that one of the information measures was uniformly superior in predicting subjective complexity.     

Objective vs subjective assessment of relaxation compliance among anxious individuals

Previous relaxation outcome research has lacked means to empirically determine how well Ss comply in home-practice assignments. This study reports on a relaxation assessment device (RAD) used by 21 adults who received 4 weeks of relaxation therapy for generalized anxiety. The RAD consists of a digital wristwatch, with a stopwatch function, surreptitiously placed within Ss' tape-players to monitor the amount of relaxation practice at home. Comparison of self-reported and RAD-determined practice found that Ss exaggerated their actual practice by an average overestimation of 126%. Only one-fourth of the Ss performed relaxation daily. Anxiety reductions were significantly correlated with RAD-determined but not with self-reported practice. Self-efficacy judgments significantly correlated with relaxation compliance only when percent overestimation in self-reports was controlled. The need for objective compliance measures in relaxation outcome studies was discussed.     

Psychological versus physical stress conditions as determinants of psychophysical regulatory processes

In a psychophysiological experimental study, two methods of standardization to induce failure-type stress situations were tested. "Psychological standardization" uses a computerized adaptive procedure to obtain a similar and stable amount of failure (about 60% incorrect solutions) both for each individual and over time; the number of tasks, however could change. The conventional "physical standardization" uses a constant number of identical tasks, both for each person and over time. The results show a better standardization of failure-type situations by using the psychological standardization method. It was further shown that heart rate and skin conductance reactions depend mainly on coping motivation and coping success rather than on the stressor intensity (objective number of tasks). Results also revealed that dispositional action control (Kuhl, 1983) was a better predictor of physiological regulation under psychological standardization than under physical standardization of failure-type stress situations.     

Objective and subjective socioeconomic status and susceptibility to the common cold.

OBJECTIVE: We ask whether subjective socioeconomic status (SES) predicts who develops a common cold when exposed to a cold virus. DESIGN: 193 healthy men and women ages 21-55 years were assessed for subjective (perceived rank) and objective SES, cognitive, affective and social dispositions, and health practices. Subsequently, they were exposed by nasal drops to a rhinovirus or influenza virus and monitored in quarantine for objective signs of illness and self-reported symptoms. MAIN OUTCOME MEASURES: Infection, signs and symptoms of the common cold, and clinical illness (infection and significant objective signs of illness). RESULTS: Increased subjective SES was associated with decreased risk for developing a cold for both viruses. This association was independent of objective SES and of cognitive, affective and social disposition that might provide alternative spurious (third factor) explanations for the association. Poorer sleep among those with lesser subjective SES may partly mediate the association between subjective SES and colds. CONCLUSIONS: Increased Subjective SES is associated with less susceptibility to upper respiratory infection, and this association is independent of objective SES, suggesting the importance of perceived relative rank to health.