Cross-cultural investigations of stress: Conceptual and methodological considerations

Cross-cultural studios on stress are confounded by conceptual, methodological and applied problems. Although several comprehensive definitions of stress have been offered, the conceptual schema from which the definitions emerge reflect a Western perspective and are not always relevant when transposed into other cultures. The word stress itself is not easily translated into other languages which creates a problem for research workers in non-Western cultures. While studies in India of Westernized executives in organizations using Western models have offered valuable insights into problems related to organizational structures, executive stress, etc., they do not tell us a great deal about the nature and experience of stress in the rest of the population. A brief history of stress research is offered with a concentration on stress research in India. Conceptual and methodological issues are discussed leading to an assessment of the difficulties of stress research in India.     

Relationship between psychological stress and lymphocytic 5′-ectonucleotidase

The relationship between psychological stress and lymphocytic 5-ectonucleotidase, an enzyme marker for lymphocyte differentiation, was studied. Lymphocytic 5-ectonucleotidase was decreased significantly by about twofold in persons experiencing psychological stress, with a corresponding change in Total Mood Disturbance scores of the Profile of Mood States. Enzyme values were reversible in that they returned to normal once the stress had been reduced. Administration of high doses of ascorbate to severely depressed patients also normalized 5-ectonucleotidase activities, and implied that low enzyme values in stressed persons may be mediated by oxygen radical damage. This finding was consistent with previous reports of heightened inflammatory responses occurring in depressed patients. The primary cause of lowered 5-ectonucleotidase during stress may be the breakdown in the homeostatic mechanisms of the hypothalamic-pituitary-adrenal axis and immune system resulting in lymphoid tissue resistance to corticosteroids. It is suggested that this lowering of lymphocyte 5-ectonucleotidase may contribute to stress-mediated immune suppression by inhibiting lymphocyte maturation.     

Spectral factors in the perception of vowel quantity in Icelandic

Previous research has shown that the ratio of vowel to rhyme (vowel + consonant) duration is a major cue for quantity in Icelandic. In particular it serves as a higher-order invariant which enables the listener to disentangle those durational transformations of the speech signal which are "extrinsic" (e. g. due to changes in speaking rate) from those which are "intrinsic" to the phonemic message, involving a change of phonemic quantity. Previous research has been based on speech segment contrasts which are purely durational, involving vowels with a uniform spectrum whether phonemically long or short, such as [a] or [I]. This paper looks at the role of spectral factors in vowels which are spectrally dissimilar in their long and short varieties. It is shown that in these cases the spectral differences can be sufficiently great to override the previously established relational invariant for quantity. The implications of this finding for a model of quantity perception are discussed.     

Maternal gestational stress alters adaptive and social behavior in adolescent rhesus monkey offspring

Data from rodent studies have indicated that stress experienced by pregnant mothers may result in behavioral and biological abnormalities in their offspring. However, few studies have examined the effects of prenatal stress on the offspring beyond the childhood period. In this study, 7 prenatally stressed (PNS) monkeys and 7 monkeys from undisturbed pregnancies were tested under mildly challenging conditions at 4 years of age. Following separation from cagemates and group formation, PNS monkeys showed more locomotion, abnormal and disturbance behavior than controls. Controls showed approximately six times more play than PNS animals. The PNS males showed the most clinging to others and the largest increase in contact with other animals over the period. Group differences were also found when the monkeys were observed as groups or alone in a playroom. Controls showed more explanatory behavior in the playroom, whereas PNS monkeys showed more inactivity. Control animals showed a decrease in distress vocalizations over time in the playroom, whereas PNS animals showed the opposite pattern. Control animals spent more time in proximity to and contact with cagemates than PNS animals. These results indicate that prenatal stress can have effects on adaptive and social behavior that persist into adolescence.     

Maternal perception of infant intentionality at 4 and 8 months

This study examines the degree to which mothers perceive infants as intentional and the relations among perception of intentionality, background variables, maternal emotional adjustment, and maternal interactive style. Forty mother-infant dyads were assessed when the infants were 4 months old, and 34 were retested at 8 months. Parent perception of infant intentionality (PPII) was measured via a rating of videotaped segments of infant behavior and an interview. Intentionality scores showed acceptable internal consistency and were positively intercorrelated at each age and across age. The two measures were aggregated to form an index of PPII at each age. Higher educational attainment was associated with lower PPII scores, experience with infants was associated with higher PPII scores, and academic knowledge about child development was not related to PPII. Mothers with more symptoms of anxiety had lower PPII scores, but high maternal separation anxiety was associated with higher PPII scores. Maternal symptoms of depression had a complex relation to PPII scores. Mothers rated as sensitive in mother-infant interactions had higher PPII scores. These variables accounted for 34% of the variance in PPII at 4 months and 49% at 8 months. There were also group differences: Mothers of 8-month-olds had higher PPII scores than mothers of 4-month-olds, mothers of girls had higher PPII scores than mothers of boys, and mothers attributed more intentionality in episodes with girls than in episodes with boys. The results are discussed in relation to mechanisms whereby PPII interacts with aspects of the parent and infant.     

Physiological,affective, and behavioral responses to interpersonal conflict among males from families with different levels of cohesion and adaptability

To examine the relation between characteristics of a person's family of origin and cardiovascular, behavioral, cognitive, and affective response to interpersonal conflict, responses of 15 young males from families rated as extreme (EXT) on scales of cohesion (enmeshed or disengaged) or adaptability (chaotic or rigid) were compared to those of 25 young males from families rated as balanced (BAL) on measures of cohesion and adaptability. Subjects participated in two interpersonal role-play conflict situations, one with a male confederate and the other with a female confederate. Measures of heart rate (HR), blood pressure, and indices of both positive and negative verbal and nonverbal behaviors were obtained during each scenario and self-reported measures of positive and negative cognitive self-statements and affective response were obtained following each conflict scene. Results showed that, in contrast to BAL males, EXT males exhibited more negative verbal and nonverbal behavior, less positive nonverbal behavior, higher ratings of state anxiousness during conflict, and higher HR responses during the interaction with the male confederate than the female confederate. These findings suggest that exposure to a family environment with extreme levels of cohesion and adaptability impacts how an individual responds to interpersonal conflict in young adulthood.     

Stress management and burnout prevention in female blue-collar workers: Theoretical and practical implications

Occupational stress is a pervasive problem among blue-collar workers, and women employees are especially vulnerable, yet this population is rarely addressed. The study concerns a stress management training program developed for female production workers with little formal education, based on the cognitive approach of Rational-Emotive-Behavioral Training (REBT). Several strategies and teaching aids suitable for such a population are suggested. Twenty-seven women participated in the program. Fourteen of them comprised the waiting-list control group. Burnout, tension, listlessness, cognitive weariness, and work/home conflict were assessed before, at the end, and at 12 months follow-up. At the end of the six-session program, four of the five measures in the experimental group were significantly reduced compared to the control group. At the 12 months follow-up, tension and burnout were still reduced compared to baseline suggesting that REBT can be successfully taught to such participants but booster sessions are required.     

“Taking another route”: Daily survival narratives from mothers who are homeless

Homelessness among families has become a growing social problem for communities, yet little is known about the types of daily survival strategies such families employ. This paper presents results of a qualitative study of the coping narratives of 64 mothers living in temporary emergency shelters with their children. The women reported using a variety of coping responses to daily stressful events. These included the use of direct actions and more palliative strategies. Results suggest that stress and coping theory may be useful for understanding homelessness. Implications for program development and future research are discussed.     

Measures of life stress and social support specific to an Asian student population

We designed two new measures—the Index of Life Stress (ILS) and the Index of Social Support (ISS)—to assist in the prediction of cultural adjustment for an Asian international student population. In the present study, these two measures were administered to 101 Asian international students. Stability estimates over 1 month were high: .97 for the ILS and .81 for the ISS. Construct validity, assessed via factor analyses, and concurrent validity, assessed via regression analyses to criteria of depression, hopelessness, and suicide ideation were satisfactory. Incremental validity for these two measures relative to extant measures of life stress and social support were computed. Results from these analyses indicated that these two measures added incrementally to the prediction of adjustment beyond that offered by existing measures.     

The role of emotion control and emotional rumination in stress management training

The present paper reports on three outcome studies evaluating the effectiveness of a new stress management training program. In contrast to conventional stress management, which tends to emphasize life-events, the symptoms of stress and relaxation, the new program is based on emotional rumination, emotion control, and attention control. The training developed from a series of experimental studies on the role of emotional inhibition and rumination in prolonging physiological recovery from stress, and the findings reported here were obtained from a series of applied studies involving police officers from a police force in the North of England. The first two studies employed both self-reported and objective measures of change to demonstrate that the training produced significant increases in job satisfaction and reduced absenteeism, while the results of the final study showed that the benefits of the program were enhanced by follow-up training.