Adaptive Flexibility,Cooperation, and Prosocial Motivations: The Emotional Foundations of Becoming Human

ABSTRACT

Humans are highly motivated to cooperate, share, and help others. The evidence for this claim comes from examining prosocial behaviors as they show up very early in development, and by systematic comparisons between young children and mankind’s closest great ape relatives. Highly cooperative and social species that care for kin and nonkin members of their group are rare in nature and call for an evolutionary explanation. Based on the work of Michael Tomasello and others, I offer a possible explanation based on a two-phase model. The first phase of the evolution of cooperation and sociability is induced by climate change taking place during a critical period of human evolution. Climate variability produced shifts from wet, monsoon landscapes to dry and arid landscapes in East Africa, the home of many of humanity’s ancestors. Shifting environmental conditions produced selective pressures favoring adaptive flexibility and forced cooperation and interdependence among our hominin ancestors, who had to search for food (cooperative foraging) and protect each other from predators. Forced interdependence came together with two biosocial adaptations: a cooperative form of raising young children (cooperative breeding) and long-term mating patterns (pair bonding). These biosocial adaptations help explain how the species might have begun to develop emotionally modern intersubjective mind-reading capacities. During a second phase of the evolution of cooperation, the emergence of shared social norms, social reputations, the cumulative effects of cultural knowledge passed on over many generations, and cultural differences produced a new form of evolution: cultural evolution. In turn, cultural evolution produced a new cycle of innovations consisting of symbolic capacities and language. When it comes to psychotherapy, the same conditions that made one human—adaptive flexibility, cooperation, helping others and mutual enjoyment in sharing—are the same conditions that make for a strong therapeutic alliance.     

Post‐traumatic factors and resilience: the role of shelter management and survivours' attitudes after the earthquakes in El Salvador (2001)

A participatory research action was undertaken in the two largest shelters established after the earthquakes in El Salvador (2001). One hundred fifteen semi‐structured interviews were carried out among refugees, which later formed the basis for a self‐managed community plan. Comparisons between the two shelters—which differed primarily in whether the grouping of tents was made to reflect the community of origin of the survivors (shelter Santa Gertrudis) or not (shelter El Cafetalón)—showed that refugees in Santa Gertrudis participated more often in community activities, and had more positive emotional memories, fewer feelings of having been humiliated and less emotional discomfort than refugees in El Cafetalón. The results suggest that forms of organisation and management which consider elements of dignity, participation and respect for the capacity of the victims to control their own lives are relevant factors for effective individual and community coping after a catastrophe. Copyright © 2005 John Wiley & Sons, Ltd.     

Survival of the partial reinforcement extinction effect after contextual shifts

The effects of contextual shifts on the partial reinforcement extinction effect (PREE) were studied in autoshaping with rats. Experiment 1 established that the two contexts used subsequently were easily discriminable and equally salient. In Experiment 2, independent groups of rats received acquisition training under partial reinforcement (PRF) or continuous reinforcement (CRF). Significant PREEs were observed whether extinction occurred in the same or in a different context. In Experiment 3, after PRF or CRF acquisition training, each group received extinction of the same conditioned stimulus in both the same and different contexts. PREEs were observed under both conditions, although extinction was accelerated after a contextual shift. These results were discussed in relation to the role of mediational states in the PREE.     

Minding the Dreamer Within: An Experimental Study on the Effects of Enhanced Dream Recall on Creative Thinking

Several studies have found an association between frequency of dream recall and creativity. We tested the hypothesis that training individuals to increase dream recall by means of a daily dream log would increase scores on the Torrance Test of Creative Thinking (TTCT). One hundred twenty‐five participants completed a baseline measure of creativity (TTCT, figural version) as well as of dream recall, dissociation, thinness of psychological boundaries, mindful‐attention awareness, and well‐being. Participants were randomly allocated to two groups: the experimental group (n = 55) received a daily dream log; while the control group (n = 32) received a similarly phrased log registering memories of a vivid episode from the previous day. After 27 days, all participants completed follow‐up measurements identical to those at baseline. A non‐randomized non‐intervention group (n = 35) was used to test for practice effects on the TTCT. There was significant selective increase for the “creative strengths” component, which was only observed in the experimental group. There were significant correlations between creativity and dissociation as well as between creativity and thinness of psychological boundaries. Enhanced dream recall through daily dream logging fosters aspects of creativity. Associations between creativity, dissociation, and thinness of boundaries, suggest that increased awareness to dreams increases creativity through a “loosening” of stereotyped thinking pattern.     

Successive negative contrast after partial reinforcement in the consummatory behavior of rats

Rats given access to a 32% sucrose solution later reject a 4% solution significantly more than controls that have only received the 4% solution. In Experiment 1, this consummatory successive negative contrast (cSNC) effect was attenuated by previous exposure to 50% partial reinforcement. Furthermore, recovery from cSNC was also facilitated by partial reinforcement. In Experiment 2, the attenuating effects of partial reinforcement on cSNC were eliminated by administration of the benzodiazepine anxiolytic chlordiazepoxide (5 mg/kg) before nonreinforced trials. In Experiment 3, the attenuating effect of partial reinforcement was greater after a shift from 32 to 6% solution, than after a shift from 32 to 2% solution. The parallels between the effects of partial reinforcement on consummatory and instrumental behavior are discussed.     

Non-conscious forms of system justification: Implicit and behavioral preferences for higher status groups

According to system justification theory, people internalize and perpetuate systemic forms of inequality, even though it sometimes means harboring preferences for members of higher status outgroups. In Study 1, students from a high status (but not a low status) university exhibited significant ingroup favoritism on the IAT, an automatic evaluative measure. Furthermore, for students at the high status university, implicit ingroup bias was positively correlated with implicit self-esteem. For students at the low status university, implicit acceptance of consensual stereotypes concerning academic and extracurricular characteristics was associated with implicit outgroup favoritism. In Study 2, Latinos and Asian Americans exhibited significant outgroup favoritism on an unobtrusive behavioral measure by choosing White interaction partners over members of their own groups. In Study 3, parents named newborn children disproportionately after their fathers (compared with their mothers) and published birth announcements for boys slightly more often than for girls. Thus, we observed evidence of system justification on implicit or unobtrusive measures in three different socially disadvantaged groups.     

No man is an island: the need to belong and dismissing avoidant attachment style

The need to belong theory proposes that all human beings need social connections. However, dismissive avoidant individuals claim to be comfortable without close relationships and appear to be indifferent to how other people think of them. The current studies examined the association between dismissing avoidant attachment and the desire to feel accepted by others. In Study 1, high-dismissive participants reported experiencing higher than average levels of positive affect and state self-esteem after learning that other participants accepted them. In Study 2, high-dismissive participants felt better about themselves and experienced higher levels of positive affect after learning that in the future they would be successful in interpersonal relative to independent domains or controls. The results of these studies suggest that dismissive avoidants do not represent a counterexample to the hypothesis that all human beings have a fundamental need and desire to belong.     

When fiends become friends: the need to belong and perceptions of personal and group discrimination

The present article examines the role that the need to belong (NTB) plays in people's judgments of personal and group discrimination and in the attributions people make for potentially discriminatory evaluations. The authors hypothesized that the NTB motivates people to conclude that (a) whereas they rarely experience personal discrimination, (b) their fellow in-group members do experience discrimination. In Study 1, people high in the NTB reported experiencing lower than average levels of personal and higher than average levels of group discrimination. In Study 2, an experimental manipulation of the NTB yielded similar results. In Study 3, women who were motivated to be accepted by a bogus male participant were less likely to attribute his negative evaluations of their work to prejudice.