Fighting the odds in the UK

Caroline Richmond reports on miscellaneous winners and losers from the health care scene in the United Kingdom. The winners include a young patient who is holding her own against formidable medical odds after receiving heroic treatment for leukemia, and the country's osteopaths, who have won the right to compile a statutory register. The losers are the venerable St. Bartholomew's Hospital, which appears to have lost its battle to stay open, and a 32-year-old man who almost made it to medical school by posing as a teenager.     

Effects of Implicit Power Motivation on Men's and Women's Implicit Learning and Testosterone Changes After Social Victory or Defeat.

Two studies examined interactions of implicit power motivation and experimentally varied victory or defeat in a contest on implicit learning of a visuomotor sequence associated with the contest outcome and changes in testosterone and self-reported affect. In men and women, power motivation predicted enhanced learning (sequence-execution accuracy) after a victory and impaired learning after a defeat. In men, power motivation predicted testosterone increases among winners and decreases among losers, and testosterone decreases mediated the negative effect of power motivation on learning in losers. In women, power motivation predicted postcontest testosterone increases, particularly among losers. In both men and women, self-reported affective states were influenced only by contest outcome and were unrelated to participants' testosterone changes or implicit learning. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The mismatch effect: When testosterone and status are at odds.

Why do some people strive for high status, whereas others actively avoid it? In the present studies, the authors examined the psychological and physiological consequences of a mismatch between baseline testosterone and a person's current level of status. The authors tested this mismatch effect by placing high and low testosterone individuals into high or low status positions using a rigged competition. In Study 1, low testosterone participants reported greater emotional arousal, focused more on their status, and showed worse cognitive functioning in a high status position. High testosterone participants showed this pattern in a low status position. In Study 2, the emotional arousal findings were replicated with heart rate, and the cognitive findings were replicated using a math test. In Study 3, the authors demonstrate that testosterone is a better predictor of behavior than self-report measures of the need for dominance. Discussion focuses on the value of measuring hormones in personality and social psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Dipyridamole attenuates rebound pulmonary hypertension after inhaled nitric oxide withdrawal in postoperative congenital heart disease

While much is known about the functional significance of strategic decisions in animal fighting, relatively little is understood about the mechanisms that underlie the making of those decisions. In mechanistic terms, strategic decisions, such as either escalating a fight or giving up, are made in relation to the proximate costs that opponents inflict (or can potentially inflict) upon one another. These costs include physical injury and also the physiological consequences of engaging in an energetically demanding activity. We studied the role of injury and energy metabolism during fights between male cichlid fish, Tilapia zillii. In relation to injuries incurred during fights, scale loss differed depending on whether the winner was smaller or larger than its opponent; smaller winners inflicted significantly more damage on their opponents than they received, whereas this difference was not apparent in those fights won by the larger fish. In relation to energy metabolism, escalated fighting resulted in a significant depletion of total sugar reserves in the muscle and the liver. It appears that the muscle energy reserves are respired anaerobically, as was evident from the accumulation of lactate in the muscle. Losers had significantly higher levels of muscle lactate than winners. Together, the injury data and the metabolic data suggest that escalated fighting is costly for both winners and losers, but especially so for losers. These data are discussed in relation to models of animal decision making and we conclude that the difference between opponents in the proximate costs incurred during fighting is likely to underlie the making of decisions such as continuing, giving up or escalating the fight. Copyright 1998 The Association for the Study of Animal Behaviour. Copyright 1998 The Association for the Study of Animal Behaviour.     

Awareness of social comparison interest and motivations: A developmental study.

Two studies conceptualized interest in social comparison as motivated by situational factors. 200 Ss from 1st, 4th, and 12th grades and college evaluated the social comparison interest of a same-sex, same-age story character working on a task near a coacting peer. Factors relevant to a classroom environment (presence or absence of an objective criterion of ability evaluation and level of competition) were varied in a within-Ss (Study 1) and a between-Ss (Study 2) design. In Study 1, Ss differentially rated the level of social comparison interest among several of the conditions, while in Study 2, the expected effects of the situational variables did not emerge. Additional findings indicate developmental changes in judged motivations toward social comparison behavior. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Behavioral consequences of agonistic experience in rats: Sex differences and the effects of testosterone.

Studied the effects of winning or losing on subsequent aggressive behavior in male and female rats. By using 3 strains with different levels of aggression (40 WEzob, 40 S3, and 40 Wistar), a procedure was developed to create winners and losers. Subsequently, winners were tested against losers. Behavioral analysis of all tests enabled a thorough study of these processes and of their consequences. Results (1) indicate that significant and relatively permanent behavioral changes were induced in intact and castrated, testosterone-treated males but not in females and (2) suggest that behavioral inhibition is a specific characteristic of the male's agonistic behavioral repertoire. (30 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

What's good for the goose may not be as good for the gander: The benefits of self-monitoring for men and women in task groups and dyadic conflicts.

The authors posit that women can rely on self-monitoring to overcome negative gender stereotypes in certain performance contexts. In a study of mixed-sex task groups, the authors found that female group members who were high self-monitors were considered more influential and more valuable contributors than women who were low self-monitors. Men benefited relatively less from self-monitoring behavior. In an experimental study of dyadic negotiations, the authors found that women who were high self-monitors performed better than women who were low self-monitors, particularly when they were negotiating over a fixed pool of resources, whereas men did not benefit as much from self-monitoring. Further analyses suggest that high self-monitoring women altered their behavior in these negotiations--when their partner behaved assertively, they increased their level of assertiveness, whereas men and low self-monitoring women did not alter their behavior. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Cognitive–behavioral stress management increases free testosterone and decreases psychological distress in HIV-seropositive men.

The effects of a 10-week group-based cognitive–behavioral stress management (CBSM) intervention on psychological distress and plasma free testosterone in symptomatic, HIV-seropositive men were examined. Participants were randomized to either CBSM (n?=?42) or a wait-list control group (n?=?23). Men in the CBSM intervention showed significant increases in testosterone, whereas control participants showed significant decreases. Those participating in CBSM had significant distress reductions, whereas controls showed no such change. Alterations in free testosterone were inversely related to changes in distress states over time, independent of any changes in cortisol. These findings demonstrate that a short-term CBSM intervention increases free testosterone levels among symptomatic, HIV-seropositive men, and alterations in free testosterone are associated with changes in psychological distress observed during CBSM. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Conceptual-motor compatibility and homonegativity: Approaching and avoiding words associated with homosexuality.

Two studies explored conceptual-motor compatibility effects underlying attitudes toward gay men and lesbian women. In Study 1, we tested if attitudes toward gay men and lesbian women would influence whether or not participants chose to engage in, and how quickly they engaged in, approach or avoidance motor movements. Participants responded to homosexual and heterosexual words on a computer screen by choosing to push (avoidance movement) or pull (approach movement) a computer mouse. Findings indicated that participants who were high in prejudice chose to make more prejudice-compatible motor responses than did participants who were low in prejudice. In Study 2, participants were randomly assigned to a prejudice-compatible or prejudice-incompatible motor movements condition. Results indicated that highly prejudiced participants were faster to complete prejudice-compatible motor movements than were low prejudice participants. Implications for implicit attitudes and measuring prejudice toward gay men and lesbian women are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Romantic involvement often reduces men's testosterone levels--but not always: The moderating role of extrapair sexual interest.

Testosterone (T) appears to facilitate what biologists refer to as mating effort--the investment of time and energy into same-sex competition and mate-seeking behavior. Multiple studies show that men who are romantically involved (i.e., are paired) have lower T than single men, which may be due to a facultative adjustment by men of T levels in response to lower demands for mating effort. The authors proceeded on the basis of the idea that men who retain interests in sexual opportunities with women other than a primary partner continue to dedicate more time and energy to mating effort when romantically paired, and so they predicted that the association between relationship status and T depends on men's extrapair sexual interests. Study 1 used the Sociosexual Orientation Inventory to measure extrapair sexual interests, whereas Study 2 used a broader measure to examine this interaction. Both studies found support for it. These results have implications for an understanding of the biosocial regulation of men's behavior in romantic relationships. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The relationship of social power to visual displays of dominance between men and women.

Two studies, with undergraduate subjects, investigated how sex and situation-specific power factors relate to visual behavior in mixed-sex interactions. The power variable in Study 1 was expert power, based on differential knowledge. Mixed-sex dyads were formed such that members had complementary areas of expertise. In Study 2, reward power was manipulated. Consistent with expectation states theory, both men and women high in expertise or reward power displayed high visual dominance, defined as the ratio of looking while speaking to looking while listening. Both men and women low in expertise or reward power looked more while listening than while speaking, producing a relatively low visual dominance ratio. In conditions in which men and women did not possess differential expertise or reward power, visual behavior was related to sex. Men displayed visual behavior similar to their patterns in the high expertise and high reward power conditions, whereas women exhibited visual behavior similar to their patterns in the low expertise and low reward power conditions. The results demonstrate how social expectations are reflected in nonverbal power displays. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Social comparison, self-stereotyping, and gender differences in self-construals.

Four studies examined gender differences in self-construals and the role of social comparison in generating these differences. Consistent with previous research, Study 1 (N=461) showed that women define themselves as higher in relational interdependence than men, and men define themselves as higher in independence/agency than women. Study 2 (N=301) showed that within-gender social comparison decreases gender differences in self-construals relative to a control condition, whereas between-genders comparison increases gender differences on both relational interdependence and independence/agency. Studies 3 (N=169) and 4 (N=278) confirmed these findings and showed that changing self-construal changes gender differences in social dominance orientation. Across the 4 studies, strong evidence for the role of in-group stereotyping as mediator of the effect of gender on self-construal was observed on the relational dimension but not on the agentic dimension. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Pavlovian conditioning of aggressive behavior in blue gourami fish (Trichogaster trichopterus): Winners become winners and losers stay losers.

Previous research has shown that Pavlovian conditioning of aggressive behavior enhances the ability of male blue gourami fish (Trichogaster trichopterus) to defend their territories in signaled contests. The authors show that this competitive advantage has both short-term and long-term consequences for territorial males. Following an encounter that was signaled for some males but not for their opponents, each winner and loser was forced to defend its territory against a novel male in an unsignaled encounter 3 days later. Males for which the first contest was signaled not only were more likely to defeat their rivals than control males but, having won that encounter, they also were more likely to win a second contest than fish that had lost their first encounter. All losers lost their second contest. These results are discussed in light of well-documented neuroendocrinological changes associated with winning and losing aggressive contests in territorial males. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Competitive behavior in male, female, and pseudohermaphroditic female dogs.

Tested 36 male, spayed female, and pseudohermaphroditic female dogs in pairs for competition over a large bone. Pseudohermaphrodites had been exposed to testosterone propionate before and immediately after birth. In equal opportunity (EO) tests, both members of a pair had equal chance to seize the bone. Each EO test was followed by an established possession (EP) test. During an EP test, the loser of the preceding EO test was given possession of the bone before the former winner was returned to the test arena. Every S was tested against all other members of its own and the other groups. Males won 78 of 100 EO tests against normal females but only 61 of 100 against pseudohermaphrodites. Pseudohermaphrodites won 70 of 100 EO tests against normal females. When either normal or pseudohermaphroditic females were given possession of the bone in EP tests they were equally ineffective in defense against male challengers, losing 75 and 71% of their tests, respectively. Both types of females were more successful in defending possession during EP tests against each other. When normal and pseudohermaphroditic females were treated with testosterone, their performance in competition tests was not altered. Androgenic stimulation before and immediately after birth permanently modified the social behavior of pseudohermaphrodites as well as the behavior of males and normal females toward experimental Ss. (6 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Held in contempt: The psychological, interpersonal, and performance consequences of contempt in a work context.

Guided by a social function of emotions perspective, the authors examined a model of the psychological, interpersonal, and performance consequences of contempt in a series of 3 experiments that tested the outcomes of being a recipient of contempt in the work domain. In these experiments, participants engaged in a business strategy simulation with a virtual partner—a computer programmed to give contemptuous and other types of feedback. In Study 1, which examined the task performance and interpersonal outcomes of contempt, recipients of contempt had significantly better task performance but also significantly more interpersonal aggressiveness toward their virtual partners compared with recipients of failure, angry, or neutral feedback. Study 2 examined 3 psychological outcomes mediating the contempt–task performance/aggression relationship: self-esteem, returned feelings of contempt, and activation levels. Lowered levels of implicit self-esteem and greater levels of activation significantly mediated the relationship between receiving contempt and task performance, whereas the contempt–aggression relationship was mediated by lowered implicit self-esteem and increased feelings of returned contempt. Study 3 examined status as a moderator of these relationships. Low-status recipients had significantly better task performance than did equal-status recipients, who performed significantly better than did the high-status recipients of contempt. In addition, low-status recipients displayed significantly lower levels of aggression in response to contempt than did equal-status and high-status recipients. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Neuroendocrine reactivity, internalizing behavior problems, and control-related cognitions in clinic-referred children and adolescents.

Literature on neuroendocrine-behavior relations suggests that cortisol reactivity to social challenge may be associated with children's internalizing problem behavior. To explore this possibility, and the role of control-related beliefs, 102 7–17 yr-old clinic-referred children were studied. Measures of problem behavior, depression and anxiety, and control-related beliefs were collected, and Ss' saliva was sampled before and after a parent–child conflict task. Neuroendocrine activation (i.e., cortisol increase) in response to the interaction task was associated with Ss' (1) social withdrawal, social anxiety, and social problems; (2) socially inhibited behavior during the task; and (3) low levels of perceived social contingency and high levels of external attributions for personal successes and failures. Our findings are among the first to link children's behavioral response to social challenge, neuroendocrine activation, cognitions, and psychopathology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Hormonal and behavioural correlates of male dominance and reproductive status in captive colonies of the naked mole-rat, Heterocephalus glaber

Naked mole-rat colonies are societies with a high reproductive skew, breeding being restricted to one dominant female (the 'queen') and 1-3 males. Other colony members of both sexes are reproductively suppressed. Experimental removal of breeding males allowed us to investigate the relationship between urinary testosterone and cortisol, dominance rank, and male reproductive status. Dominance rank was strongly correlated with body weight, age, and urinary testosterone titres in males. No relationship between urinary cortisol levels and male reproductive status or dominance was found. Breeding males were among the highest-ranking, heaviest and oldest males in their respective colonies, and were succeeded by other high-ranking, large, old colony males. In contrast to females, no evidence of competition over breeding status was observed among males. Male-male agonism was low both before and after removal of breeders and mate guarding was not observed. The lower reproductive skew for males compared with female skew or queen control over male reproduction may explain why males compete less strongly than females over breeding status after removal of same-sexed breeders.     

Referent cognitions and task decision autonomy: Beyond equity theory.

A laboratory experiment was conducted to test referent cognitions theory, which integrates distributive and procedural justice. Undergraduates worked on two tasks knowing that performance scores from only one of these would count toward their chances for earning a reward. In the subject-decision conditions, the students selected (prior to knowledge about their performance) which task would count. The experimenter selected the crucial task in the experimenter-decision conditions. Feedback from the task that did not count indicated to subjects in high-referent conditions that they would have won the reward if these scores had counted, whereas subjects in low-referent conditions learned they would have lost no matter which set of scores counted. All subjects "lost" on the task that counted. Only subjects in the high-referent, experimenter-decision condition subsequently expressed feelings of unfair treatment. The results are discussed in terms of limitations to equity theory. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The participation of the brain dopamine D1 and D2 receptors in the process of the development of depression induced by social confrontations in mice

Brain D1 and D2 receptors were studied in male mice with repeated experience of social defeats in daily intermale aggressive confrontations inducing development of experimental depression. Groups of animals were studied after 10 (T10 losers) and 20 (T20 losers) days of agonistic confrontations. Mice after 5 days of individual housing were used as a control group. In the experimental groups D1/D2 antagonist cisfluphentixol (0.2 mg/kg) did not affect the communicative behavior in the partition test that estimated behavioral reactivity of a male to another one. Selective D2 antagonist sulpiride (20 mg/kg), however, decreased these reactions in the control group and, in particular, in T10 losers but was ineffective in T20 losers. Both antagonists changed behavior in Porsolt's test of the control mice and, to a greater extent, of T10 losers but failed to change it in T20 losers. Decrease in Bmax in nucleus accumbens and increase in Kd in amygdala were revealed in T20 losers with [3H]-SCH 23390 binding assay. The obtained evidence shows that development of DISC is accompanied by D1 and D2 receptor sensitivity changes. Analysis of data suggests the specific participation of D1 receptors of the mesolimbic dopaminergic system at the stage of developed DISC.     

Marital satisfaction, recovery from work, and diurnal cortisol among men and women.

Design: Multilevel modeling was used to model relationships between salivary cortisol, daily diary ratings of work experiences, and Marital Adjustment Test scores (Locke & Wallace, 1959), in a sample of 60 adults who sampled saliva 4 times per day over 3 days. Results: Among women but not men, marital satisfaction was significantly associated with a stronger basal cortisol cycle, with higher morning values and a steeper decline across the day. For women but not men, marital satisfaction moderated the within-subjects association between afternoon and evening cortisol level, such that marital quality appeared to bolster women's physiological recovery from work. For both men and women, evening cortisol was lower than usual on higher-workload days, and marital satisfaction augmented this association among women. Men showed higher evening cortisol after more distressing social experiences at work, an association that was strongest among men with higher marital satisfaction. Conclusion: This work has implications for the study of physiological recovery from work, and also suggests a pathway by which marital satisfaction influences allostatic load and physical health. (PsycINFO Database Record (c) 2010 APA, all rights reserved)