Group versus individual performance on tasks requiring ideational proficiency (brainstorming): A review

In the experiments reviewed in this article the subjects are asked to produce ideas that are relevant to a given task request (e.g., possible consequences of a hypothetical event). After describing the specific task material and the performance measures used in the relevant research studies, some analytic background is given by outlining the cognitive resources required in this kind of experimental task and by listing the various factors that may come into play when subjects perform in groups (with discussion) instead of individually. We then review the studies comparing individual and group performance. In all of these experiments the subjects were asked to work according to the rules of brainstorming, which prescribe that participants refrain from evaluating their ideas. This procedure purportedly results in superior group, relative to individual, performance. However, the empirical evidence clearly indicates that subjects brainstorming in small groups produce fewer ideas than the same number of subjects brainstorming individually. Less clear evidence is available on measures of quality, uniqueness and variety. The discussion considers factors that may be responsible for this inferiority of groups. The role of social inhibition receives particular attention also in terms of suggestions for research. Apart from the group-individual comparison we review the existing research concerning factors that may influence group performance on idea-generation tasks.     

“Feeling” the pain of those who are different from us: Modulation of EEG in the mu/alpha range

We explored how apparently painful stimuli and the ability to identify with the person on whom the pain is inflicted modulate EEG suppression in the mu/alpha range (8–12 Hz). In a 2 × 2 design, we presented pictures of hands either experiencing needle pricks or being touched by a Q-tip. In the dissimilar-other condition, the hand was assigned to a patient suffering from a neurological disease in which Q-tips inflicted pain, whereas needle pricks did not. In the similar-other condition, the hand was assigned to a patient who responded to stimulation in the same way as the healthy participant. Participants were instructed to imagine the feeling of the person whose hand was shown and to evaluate his or her affective state. Pain conditions elicited greater EEG suppression than did nonpain conditions, particularly over frontocentral regions. Moreover, an interaction between pain and similarity revealed that for similar others, the pain effect was significant, whereas in the dissimilar-other group, suppression was equally large in the pain and no-pain conditions. We conclude that mu/alpha suppression is elicited both automatically, by observing a situation that is potentially painful for the observer, and by empathy for pain, even if the other person is different from oneself.     

Racial attitudes in response to thoughts of white privilege

Thinking about the benefits gained from a privileged group membership can threaten social identity and evoke justification of the existing status difference between the ingroup and a disadvantaged group. For White Americans, racial privilege may be justified by concurring with modern racist attitudes. In Experiment 1, White Americans randomly assigned to think about White privilege expressed greater modern racism compared to those assigned to think about White disadvantage or a race‐irrelevant topic. In Experiment 2, we found that increased racism in response to thoughts of White privilege was limited to those who highly identified with their racial category. In contrast, when White racial identification was sufficiently low, thoughts of White privilege reliably reduced modern racism. We discuss the implications of these findings for the meaning of modern racism and prejudice reduction. Copyright © 2006 John Wiley & Sons, Ltd.     

Inequality as ingroup privilege or outgroup disadvantage: the impact of group focus on collective guilt and interracial attitudes

Among members of privileged groups, social inequality is often thought of in terms of the disadvantages associated with outgroup membership. Yet inequality also can be validly framed in terms of ingroup privilege. These different framings have important psychological and social implications. In Experiment 1 (N = 110), White American participants assessed 24 statements about racial inequality framed as either White privileges or Black disadvantages. In Experiment 2 (N = 122), White participants generated examples of White privileges or Black disadvantages. In both experiments, a White privilege framing resulted in greater collective guilt and lower racism compared to a Black disadvantage framing. Collective guilt mediated the manipulation's effect on racism. In addition, in Experiment 2, a White privilege framing decreased White racial identification compared to a Black disadvantage framing. These findings suggest that representing inequality in terms of outgroup disadvantage allows privileged group members to avoid the negative psychological implications of inequality and supports prejudicial attitudes.     

Contingency experiences of 3-month-old children and their relation to later developmental achievements

In this study, the authors investigated the relation between early social contingency experiences and infants' competencies to detect nonsocial contingencies. In this study of 87 three-month-old infants, the authors operationalized early social contingencies as prompt, contingent maternal responses and coded microanalytically on the basis of video-recorded mother-infant interactions. The authors assessed competence to detect nonsocial contingencies by 2 methods: (a) the mobile conjugate reinforcement paradigm, which focuses on detecting contingencies between the infants' actions (kicking) and nonsocial consequences (mobile moving) and (b) the visual expectation paradigm, which focuses on detecting contingencies between 1 event (a smiley face projected on a screen) that was followed by a 2nd event (a complex picture projected on the other side of the screen). The results showed that early social contingencies are related to the competency to detect nonsocial action-consequence contingencies in the mobile conjugate reinforcement paradigm.     

Right hemisphere superiority in processing new symbols for arithmetic operators

A left ear advantage for solving dichotically-presented arithmetic problems was observed in subjects when nonsense words were substituted for familiar operator names (“plus”, “minus”, etc.). The expected right ear advantage was observed when the same problems were solved by the same subjects when the familiar operator names were presented. Since neither the task nor the nonsense words could produce the left ear advantage by themselves, it is hypothesized that introduction of the nonsense symbols created a novel situation which recruited greater functional participation by the right cerebral hemisphere. Accommodating to new symbols for previously assimilated concepts is a common demand in the learning process of formal systems. Thus, the functions of the left and right hemispheres appear to take interactive roles during learning.     

Physiological arousal and reactions to outgroup members during competitions that implicate an important social identity

Exposure to sports competitions, especially those involving violence, can elevate physiological arousal, potentially setting the stage for transforming hostile inclinations into aggressive behavior. Personality and cognitive factors that influence the interpretation given to such competitions may influence the impact of these events. The effects of exposure to a sporting competition that had high or low importance for subjects' social identity on pre- to post-film blood pressure and evaluations of outgroups were examined. Aggression may be particularly likely when arousal levels are elevated, and such arousal was expected to be determined by the importance of the identity at stake, regardless of the outcome of the competition. Individuals who were either strongly identified with America or were less identified viewed a boxing match where the American athlete lost the competition (and the Russian contestant won), or the Russian athlete lost (and the American won). Both diastolic and systolic blood pressure measures showed an increase pre- to post-film in the highly identified persons while no such change was observed in the low identitied individuals. Cognitive measures assessing evaluations of the Russian boxer, and Russians in general, showed effects parallel to the arousal indexes with high identified persons expressing more derogation of threat-relevant targets than did those low in identification. Arousal increases in only the highly identified viewers predicted derogation of Russians. Discussion centers on the role of identification with a sports team on physiological processes and their implications for spectator aggression.     

A three-factor scale of attitudes toward guns

Guns figure prominently in American culture. There is, however, considerable variability in attitudes toward guns. The beliefs and feelings that comprise attitudes toward guns may well be important moderators of numerous social behaviors. For this reason, a three-dimensional attitudes scale was constructed. The first factor consists of an abstract set of beliefs concerning the right of the American public to own or not own guns. The second and third factors tap more concrete beliefs about the consequences of gun ownership. Specifically, the second factor assesses the degree to which people believe gun ownership affords protection against crime. The third factor measures the degree to which people believe guns stimulate crime. Discriminant validity of the subscales is shown by the pattern of correlations obtained with the three dimensions and various other social and personality measures. Regression analyses indicate that the subscales are uniquely predicted by different social variables. Discussion centers on the usefulness of such a measure for future research on aggression, social policy, and attitude change.     

When do victim group members feel a moral obligation to help suffering others?

In four experiments, we assessed when the salience of ingroup historical victimization will encourage a sense of moral obligation to reduce the suffering of others. Historically victimized groups (Jews and women; Experiments 1 and 3) who considered the lessons of the past for their ingroup felt heightened moral obligation to help other non‐adversary victimized groups. However, when the suffering outgroup was an adversary, Jews (Experiment 2) and women (Experiment 4) who focused on the lesson of historical victimization for their ingroup reported lower moral obligation to reduce others' suffering. The lesson focus effect on moral obligation was mediated by benefit finding as well as perceived similarity to the outgroup. Means to facilitate moral obligation, as well as limiting factors, among victimized group members are discussed. Copyright © 2014 John Wiley & Sons, Ltd.