When head is tempered by heart: Heart rate variability modulates perception of other-blame reducing anger

This study examined the relationship between heart rate variability (HRV), as an index of individual differences in emotion regulation, and perception of other-blame, as a mechanism of anger induction. The physiological responses were recorded while subjects read a story from a computer screen. The story narrated a negative event in self-referred way -dismissal from a job as the result of a colleague’s action- under conditions of intentionality versus non-intentionality. Cognitive and emotional variables were assessed by questionnaire immediately after the physiological test. The resulting structural model supports the conclusion that HRV exerts its regulatory influence directly on perception of other-blame rather than on emotion. In situations of intentionality, individuals with higher HRV make less extreme evaluation of the offender’s blame, versus those with lower HRV, thus leading to a reduction in anger reaction. These results suggest that HRV is a direct index of cognitive rather than emotional regulation.     

The Relationship Between Adolescents’ Attitudes Toward Their Fathers and Loneliness: A Cross-Cultural Study

Loneliness can be regarded as an epidemic of modern society that is becoming increasingly problematic for millions of people. Adolescents are particularly susceptible to the development of this kind of emotional distress. Although many causes of loneliness can be identified, some researchers are of the opinion that it can also be attributed to unpleasant childhood experiences that result in unfulfilled needs relating to intimacy. In this research study, the relationship between loneliness and adolescents’ attitudes towards their fathers was investigated. In order to achieve this goal, information was gathered from 1068 South African respondents. Biographical questionnaires were administered and a Loneliness Scale was applied. In addition, adolescents’ attitudes towards their fathers were measured by means of a Fathers Questionnaire. Steps were taken to determine which of the independent variables, namely gender, age, race, language and socio-economic status, contributed significantly to the prediction of loneliness. In order to process the acquired information, a stepwise multiple regression analysis was conducted. The most important finding of this study is that adolescents’ attitudes towards their fathers comprise the most prominent predictor of loneliness during adolescence. The results also indicated that all of the independent variables had a statistically significant influence on loneliness.     

无关声音效应研究述评

无关声音效应是在对注意与记忆进行研究时所发现的一个现象,有益于探讨噪音等无关声音刺激对个体认知过程、工作绩效及身心健康的影响作用。在简要回顾ISE现象的界定与理论解释争论的基础上,重点从对刺激强度不同的ISE现象之理论分析、应用价值及一些相关的近期研究方面作了介绍,从对ISE现象的理论解释、无关声音刺激的选取、研究方法的综合使用、ISE现象中的个体差异等方面做了展望。     

Scheduled running wheel activity indexes the specificity of pharmacological anorexia.

Nondeprived male Sprague-Dawley rats that were given scheduled access to running wheels for 60 min daily ran immediately and energetically. Intraperitoneal injections of 400 micrograms/kg pancreatic glucagon and 0.15 microgram/kg cholecystokinin octapeptide had no effect on scheduled running, but significantly inhibited feeding when the rats were offered condensed milk instead of access to the running wheels. This is consistent with the hypothesized function of these peptides as postprandial satiety signals. In contrast, 0.5 mg/kg amphetamine and 75 microM/kg LiCl, which produced similar degrees of anorexia, inhibited running by about 50%. Amphetamine, but neither peptide, also inhibited water drinking and disrupted the behavioral sequence of postprandial satiety. The distance run during scheduled running tests was inversely related to body weight, but the patterns of the drugs' effects were not altered by baseline running differences. Scheduled wheel running is a robust consummatory behavior that appears to provide a relatively valid, simple, and sensitive test of the behavioral specificity of pharmacological anorexia.     

Effects of post-trial administration of naloxone and beta-endorphin on shock-induced fighting in rats

To study the involvement of endogenous opioid peptides in the development of shock-induced fighting, naloxone (2 mg/kg) or beta-endorphin (10 micrograms/kg) was administered subcutaneously immediately after the session and during nine consecutive daily sessions to rats repeatedly exposed to electric shocks. beta-Endorphin blocked the development of shock-induced fighting while naloxone facilitated it but only when shock-induced fighting occurred at a low rate. The effects of beta-endorphin were time dependent since when beta-endorphin was injected 90 min after the shock session instead of immediately after, its impairing effect disappeared. In addition, naloxone blocked the impairment produced by beta-endorphin. Differential postsession treatment of each member of pairs of rats with naloxone and beta-endorphin resulted in a higher probability of rats treated with naloxone to be dominant over rats treated with beta-endorphin in the test situation. These results are discussed in relation with the possible involvement of endogenous opioids in the modulation of the physiological consequences of defensive behavioral responses to shock.     

A Multitrait-multimethod examination of Minnesota Multiphasic Personality Inventory (MMPI) and Millon Clinical Multiaxial Inventory (MCMI)

Recently, certain Minnesota Multiphasic Personality Inventory (MMPI) and Millon Clinical Multiaxial Inventory (MCMI) scales have seen increasing usage for the measurement of DSM-III personality disorders. The current study sought to identify the convergent and discriminant validity of these two sets of scales for this purpose. In general, the results indicated significant convergence across the two instruments. However, better convergent validity was found for scales representing those DSM-III disorders which are most consistent with the typology upon which the MCMI was based. In particular, convergent and discriminant validity results were poorest for Compulsive, Antisocial, and Passive-Aggressive personality scales.     

The aggression test as a possible taxonomic tool in the Formica rufa group

The intra- and interspecific aggressive behavior of Formica polyctena, a species of the Formica rufa group, was analyzed and quantified both in the laboratory and in the field. This behavior was used as a potential taxonomic tool for gaining a better understanding of the phyletic relationships among the species within the group. No overt aggression was recorded toward members of the same species. To examine interspecific relationships, F. polyctena was first confronted with F. cunicularia, to ascertain its aggressiveness toward a distantly related species. All such encounters led immediately to overt and prolonged attacks with virtually no initial mutual inspection. This suggests that recognition of strangeness of the unrelated species is almost immediate in F. polyctena, as previously observed in F. lugubris and F. rufa toward the same antagonist. Subsequently, F. polyctena was contrasted with F. lugubris and F. rufa (also belonging to the F. rufa group) in order to compare these related species. Fierce attacks accompanied by all the elements of conflict behavior were observed in all encounters. Moreover, the degree of aggression in the field was higher than in laboratory-paired ants, possibly because of a territorial effect. These data and our previous and similar research indicate that the relationships between F. lugubris and F. rufa are closer than between these two species and F. polyctena. In considering different viewpoints on this problem, the validity of the aggression test is discussed and the opportunity to compare levels of aggressiveness among strictly sympatric samples of red wood ant species gathered from the same ecological environment are considered.     

Effects of Communication Expectancies,Actual Communication,and Expectancy Disconfirmation on Evaluations of Communicators and Their Communication Behavior

The current investigation addressed (a) the perseverance of preinteraction expectancies in the face of actual communication behavior, (b) the separate effects of personal attribute and communication expectancies, and (c) the role of expectancy confirmation or disconfirmation on postinteraction evaluations. Participant perceivers were induced to hold positive or negative expectancies regarding a target partner's general personal attributes and specific communication behavior prior to a problem-solving discussion. They then interacted with a confederate target who communicated in a pleasant, involved fashion or its opposite, after which perceivers evaluated target personal attributes and communication behavior. All three hypotheses received at least partial support. Preinteractional expectancies, especially personal attribute ones, caused perceivers to evaluate targets and their communication behavior differently, with negatively valenced expectancies serving as negative violations. Relative to a pleasant, involved communication style, unpleasant, uninvolved communication was less expected and evaluated negatively, thus functioning as a negative violation; it also reduced credibility, attraction, and perceived rewardingness of the target. Finally, disconfirmatory communication altered target evaluations relative to confirmatory communication, especially for high-valence targets. These results lend support to the premises and predictions of expectancy violations theory.     

Two Contrasting Explanations of Involvement Violations:

Among the theories that address the impact of variations in immediacy behaviors during ongoing interactions are expectancy violations (EV) and discrepancy arousal (DA) theories. This study of the effects of violations of expectations on arousal, reciprocity, and compensation in the medical practitioner-patient relationship contrasts EV predictions with DA predictions. EV theory predicts that given a communicator with high reward valence, high and very high involvement (including touch and close proximity) should be met with reciprocation (increased involvement), and low and very low involvement should be met with compensation (increased involvement). DA theory predicts compensating very high involvement with decreased involvement, reciprocating high involvement with increased involvement, compensating low involvement with increased involvement, and reciprocating very low involvement, with decreased involvement. Results supported neither theory as all involvement changes were met with reciprocity. Additionally, although all violations/discrepancies were followed by changes in arousal, size of arousal change was not monotonically related to size of involvement change, as predicted by DA theory. Finally, although positive versus negative emotional experiences were not related to physiological indicators of arousal change, size of involvement change was directly related to the experience of positive and negative emotions. Thus, it appears that involvement change size directly predicts emotional experience and is not mediated by arousal change.