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PubMedDate not supplied

A personal formula for motivation.

Have you ever wondered why some colleagues or subordinates are outstanding in their work while others are less so? Training and experience are extremely important factors but, by themselves, they will not ensure outstanding performance. The pivotal factor that activates all others is motivation. And underlying motivation is the fact that we all have needs that we desire to have fulfilled and that we make choices regarding the course of action or strategy to fulfill these needs. As managers, we do not typically create the "products" of the organization but rather must rely on subordinates. It is incumbent upon us to obtain from our employees desired behavior that will fulfill organizational goals. Indeed, it has been asserted that "one of the most basic responsibilities of the health service organization manager [is] motivating constructive participation of other organization members."

Health Facilities↗
PubMed1996

A clinical and interactionist perspective on the bully-victim-bystander relationship.

The authors propose a dialectical conceptual framework for the bully-victim-bystander interaction often seen in school violence. A clinical and interactional typology is proposed for the detection of children falling into these patterns, with the goal of affording early and vigorous intervention and consultation opportunities with teachers and school administrators.

Adolescent↗
PubMed1997

[The action of a modulated electromagnetic field on the emotional component of the systemic organization of behavioral acts in rats].

Experimental findings are reviewed in respect to the effect of modulated electromagnetic field (MEMF) upon emotional responses of rats accompanying various phases of systemic organisation of their behaviour. Blocking effects of the MEMF are shown in simulated self-stimulation and various conditioned types of behaviour in rats. In author's opinion, the MEMF affect the informative component of behaviour: emotions.

Animals↗
PubMed1997

Serotonin, social status and aggression.

Serotonin, social status and aggression appear to be linked in many animal species, including humans. The linkages are complex, and, for the most part, details relating the amine to the behavior remain obscure. During the past year, important advances have been made in a crustacean model system relating serotonin and aggression. The findings include the demonstration that serotonin injections will cause transient reversals in the unwillingness of subordinate animals to engage in agonistic encounters, and that at specific synaptic sites involved in activation of escape behavior, the direction of the modulation by serotonin depends on the social status of the animal.

Aggression↗
PubMed1986

Effects of ovariectomy, social instability and social status on female Macaca fascicularis social behavior.

The effects of ovariectomy, social instability and social status on affiliative and agonistic behavior were studied in 44 females housed in 10 unimale groups. Five of the groups contained ovariectomized females and five groups contained intact females. The membership among three groups of intact females (n = 13) and three groups of ovariectomized females (n = 13) was reorganized every three months (unstable), and the other groups were left undisturbed (stable) for the 22 month study. The behavior of each female was recorded during 160 (stable) or 190 (unstable) 15 min focal observations of each subject. The social status of each female was determined by outcomes of agonistic interactions. It was hypothesized that the effects of social instability and status would be more pervasive than the effects of ovariectomy. It was found that ovariectomy reduced interfemale affiliation and increased male-female agonism. Social instability increased submissions to males and females and time spent alone, and decreased interfemale affiliation. Dominant animals were more aggressive and less submissive than subordinates. Thus, ovariectomy influenced both isosexual and heterosexual social interaction, implying mediation of these behaviors, at least in part, by ovarian hormones.

Animals↗
PubMed2006

Increasing acquaintanceship and complementarity of behavioral styles and personality traits among college roommates.

Robert Carson's principle of complementarity asserts that the behavioral styles of interaction partners tend to complement each other by encouraging individuals to act opposite in terms of dominance and similar in terms of warmth. The principles of complementarity further hypothesize that as relationships progress through multiple interactions, the behavioral styles of its members will be altered to increase complementarity. To examine this acquaintanceship hypothesis, the behavioral styles and personalities of 102 college roommate dyads were assessed after living together for 2 weeks and again after living together for 15 weeks. Consistent with the acquaintanceship hypothesis, after 2 weeks the behavioral styles of roommates did not complement each other; however, after 15 weeks, the behavioral styles of roommates strongly complemented each other. In contrast to the change in complementarity observed in roommates' behavioral styles, participants' perceptions of their own personalities were relatively unaffected by the personalities of their roommates.

Dominance-Subordination↗
PubMed2003

Are subordinates always stressed? A comparative analysis of rank differences in cortisol levels among primates.

Among primate species there is pronounced variation in the relationship between social status and measures of stress physiology. An informal meta-analysis was designed to investigate the basis of this diversity across different primate societies. Species were included only if a substantial amount of published information was available regarding both social behavior and rank-related differences in stress physiology. Four Old World and three New World species met these criteria, including societies varying from small-group, singular cooperative breeders (common marmoset and cotton top tamarin) to large-troop, multi-male, multi-female polygynous mating systems (rhesus, cynomolgus, talapoin, squirrel monkeys, and olive baboon). A questionnaire was formulated to obtain information necessary to characterize the stress milieu for individuals in particular primate societies. We standardized cortisol values within each species by calculating the ratio of basal cortisol concentrations of subordinates to those of dominants in stable dominance hierarchies and expressing the ratio as a percentage (relative cortisol levels). The meta-analysis identified two variables that significantly predicted relative cortisol levels: subordinates exhibited higher relative cortisol levels when they (1). were subjected to higher rates of stressors, and (2). experienced decreased opportunities for social (including close kin) support. These findings have important implications for understanding the different physiological consequences of dominant and subordinate social status across primate societies and how social rank may differ in its behavioral and physiological manifestations among primate societies.

Aggression↗
PubMed1986

Odor-guided behavior in mammals.

The odor-guided behaviors selected for presentation in this paper encompass the major areas of animal behavior, and illustrate the important principal that complex relations exist between odor-guided behaviors, hormonal state, and experiential factors. Clearly, experiences with odors at several life stages results in profound influences upon later behaviors, including those related to eating, mating, fighting, and nesting. Interestingly, only brief social encounters are needed in rats to induce such phenomena as ultrasonic calling to conspecific estrous females or their odors, preferences for estrous over non-estrous odors, and the short-term modification of feeding behaviors. Although the mechanisms behind these intriguing phenomena are poorly understood, it is noteworthy that rats can learn relatively complex concepts on the basis of odors, rivaling even the ability of our own species to learn analogous tasks by visual cues. Despite the fact that close relationships can be demonstrated between odor-guided behaviors and variables such as endocrine state and sexual experience, caution is warranted in assuming that simple causal relations exist between such variables. In normally cycling women, for example, the correlation between olfactory sensitivity and plasma levels of estradiol during the menstrual cycle is relatively high; however, attenuation of the cyclical estradiol fluctuations by oral contraceptives does not eliminate the olfactory fluctuations, suggesting the relation is not causal. In house mice, social experience can override hormonal factors in their odor-guided urine marking and submissive behaviors. Thus, even though androgen titer usually correlates with such measures, a mouse made subordinant in a social encounter will not exhibit scent marking even when its circulating testosterone is maintained at a high level by a silastic implant. Further reason for caution comes from studies that suggest olfactory input influences the endocrine systems of sexually experienced and sexually inexperienced animals in different ways. For example, in sexually experienced male rats, anosmia decreases testosterone and estradiol levels and increases corticosterone levels, whereas in sexually inexperienced ones it has no significant influence on the levels of these steroids. Taken together, such observations suggest that the causal bases of a number of the odor-guided behaviors described in this paper are complex.(ABSTRACT TRUNCATED AT 400 WORDS)

Aging↗
PubMed2005

Agonistic onset marks emotional changes and dispersal propensity in wild house mouse males (Mus domesticus).

The authors investigated implications of agonistic onset for anxiety and dispersive motivation in maturing wild house mouse males (Mus domesticus). Laboratory-kept fraternal pairs either developed agonistic dominance or stayed amicable during their first 2 months of life, when the authors assessed open-field behavior and dispersal propensity. State anxiety was lower in amicable than agonistic males and higher in subordinate than dominant ones. During subsequent dispersal trials, 1 dominant and 1 amicable male from 2 fraternal pairs were concomitantly introduced into seminatural enclosures containing 3 females. One male invariably became territorial. The defeated males, if previously dominant, dispersed at significantly higher rates than if previously amicable. The authors conclude that agonistic onset during development represents an adaptive behavioral switch from a submissive-philopatric to agonistic-dispersive coping strategy.

Affect↗
PubMed2002

Individual and seasonal variation in fecal testosterone and cortisol levels of wild male tufted capuchin monkeys, Cebus apella nigritus.

This study tested the "challenge hypothesis" and rank-based predictions for temporal steroid production in male tufted capuchin monkeys, Cebus apella. Fecal samples (n = 209) collected from six wild males were analyzed for testosterone and cortisol concentration by enzyme immunoassay. The temporal pattern in male steroid production was compared to female sexual activity and rates of male aggression. The top-ranking adult male did not differ from other adult males in testosterone or cortisol concentration. Mean adult testosterone was significantly higher than mean subadult testosterone throughout the year. There was a clear elevation of testosterone and cortisol in both adult and subadult males during the peak of adult female sexual activity after the birth season. In fact, the magnitude of increase in testosterone was higher than predicted for a species with low male-male aggression. However, there was no difference between nonbreeding baseline testosterone levels during the birth season, and the "breeding" baseline of testosterone in males found during asynchronous female sexual activity. Of all behavioral indices examined, the distribution of female-maintained consortships was the best predictor of mean adult male testosterone concentrations. Although in many species, elevated testosterone coincides with increased male-male aggression, in the present study, the sustained high-magnitude increase in steroids during the peak of adult female sexual activity was associated with a relatively low rate of male-male intragroup aggression.

Age Factors↗
PubMed1977

A typology of intimate relationships.

A typology of marriages and other intimate relationships is offered based on seven behavioral profiles that partners can exhibit in their interactions with one another. The typology is relatively simple, based upon the main thrust of each partner's behavior in their dyadic system. The intrapsychic and biological factors that are forces in each partner's marriage contract differ for each behavioral profile. The profiles are subject to change as the couples' interactions change. There are 28 possible combinations of the two partners' profiles. These are determined by putting together the two terms that best describe each partner's behavior. The prognosis for the quality of each type of relationship in the typology is discussed.

Dependency, Psychological↗
PubMed2004

Dispersal, eviction, and conflict in meerkats (Suricata suricatta): an evolutionarily stable strategy model.

Decisions regarding immigration and emigration are crucial to understanding group dynamics in social animals, but dispersal is rarely treated in models of optimal behavior. We developed a model of evolutionarily stable dispersal and eviction strategies for a cooperative mammal, the meerkat Suricata suricatta. Using rank and group size as state variables, we determined state-specific probabilities that subordinate females would disperse and contrasted these with probabilities of eviction by the dominant female, based on the long-term fitness consequences of these behaviors but incorporating the potential for error. We examined whether long-term fitness considerations explain group size regulation in meerkats; whether long-term fitness considerations can lead to conflict between dominant and subordinate female group members; and under what circumstances those conflicts were likely to lead to stability, dispersal, or eviction. Our results indicated that long-term fitness considerations can explain group size regulation in meerkats. Group size distributions expected from predicted dispersal and eviction strategies matched empirical distributions most closely when emigrant survival was approximately that determined from the field study. Long-term fitness considerations may lead to conflicts between dominant and subordinate female meerkats, and eviction is the most likely result of these conflicts. Our model is computationally intensive but provides a general framework for incorporating future changes in the size of multimember cooperative breeding groups.

Animal Migration↗
PubMed1991

Scent marking (pasting) in a colony of immature spotted hyenas (Crocuta crocuta): a developmental study.

Pasting, a stereotypic form of anal gland scent marking, was studied in 2 cohorts (N = 20) of captive spotted hyenas (Crocuta crocuta). A significant increment in the frequency of pasting occurred in both cohorts as the animals approached sexual maturity; however, gonadectomy during the early juvenile age period had no significant effects on subsequent pasting frequency. Dominant hyenas in both cohorts tended to scent-mark more frequently than subordinates during the late subadult period. Pasting was facilitated by the immediately preceding pasting activities of other hyenas, as has been reported to occur in nature, and olfactory investigation was the most common behavior preceding pasting.

Androgens↗
PubMed1988

Sex reversal in female Betta splendens as a function of testosterone manipulation and social influence.

In Experiment 1, female Betta given daily injections of testosterone (T) for 9 weeks acquired anatomical features characteristic of males as indicated by changes in fin length, body coloration, and gonadal morphology. These findings suggested that a potential for sex reversal exists in females of this species. In Experiment 2 we measured changes in aggressive behavior during testosterone-induced anatomical changes. Aggression decreased toward females and increased toward males as treatment with T progressed. The final displays of aggressive behavior and anatomical characteristics of fish injected with T resembled those of typical males. In Experiment 3, female Betta primed with T injections for 3 or 6 weeks and permitted to interact socially with females continued to display characteristics of sex reversal after T supplementation ceased. Sex reversal in isolated fish injected with T for 3 or 6 weeks was not sustained, and fish receiving only the control vehicle showed negligible change in both the isolated and community conditions. We discuss the results in terms of similarities with the sex change process found in isolated communities of coral reef fish.

Aggression↗