Development of predictive responses in theory of mind brain regions

When we watch movies, we consider the characters’ mental states in order to understand and predict the narrative. Recent work in functional magnetic resonance imaging (fMRI) uses movie‐viewing paradigms to measure functional responses in brain regions recruited for such mental state reasoning (the theory of mind [“ToM”] network). Here, two groups of young children (n = 30 3–4 years old, n = 26 6–7 years old) viewed a short animated movie twice while undergoing fMRI. As children get older, ToM brain regions were recruited earlier in time during the second presentation of the movie. This “narrative anticipation” effect is specific: there was no such effect in a control network of brain regions that responds just as robustly to the movie (the “Pain Matrix”). These results complement prior studies in adults that suggest that ToM brain regions play a role not just in inferring, but in actively predicting, other people's thoughts and feelings, and provide novel evidence that as children get older, their ToM brain regions increasingly make such predictions.     

Intruding male red swamp crayfish,Procambarus clarkii,immediately dominate members of established communities of smaller,mixed-sex conspecifics

The effects of competing asymmetries (intruder size advantage vs. prior residence) on dominance relationships were investigated in a laboratory setting. Sexually mature (Form I) male red swamp crayfish, 25%-27% larger than the average member of several mixedsex communities of 20-25 sexually mature conspecifics, individually intruded upon these communities on successive days. Each community was invaded once a day, with each of these large intruders invading every community once during the experiment. Five days after the last large intruder invasion, novel intruder group males, approximately the same size as the average community member, individually invaded the same communities, all communities being invaded once during a single day of testing. These novel intruders were used to differentiate the effects of intruder size from those effects of being put into a novel environment. During each intrusion, the frequencies of dominance, submission, aggressive standoffs, and nonaggressive interactions between the intruder and members of the community were recorded. The large intruders on each day immediately and virtually completely dominated all encountered community members, and the large intruders were significantly more dominant than the novel, smaller-sized intruders. The size advantage of the large intruders overwhelmed prior residence in influencing dominance outcomes, even in these well established communities. © 1995 Wiley-Liss, Inc.     

The 2 × 2 Model of Goal Orientation and Burnout: The Role of Approach–Avoidance Dimensions in Predicting Burnout

Burnout is typically viewed as resulting from situational factors (e.g., workload). However, as burnout is partly a reaction to frustrated goal striving, dispositional goal orientation may also be important. We used Hobfoll's ( 1989 ) conservation of resources model to develop hypotheses for relationships between goal orientation and 3 dimensions of burnout. Self‐report questionnaire measures of the 2 × 2 model of goal orientation (Elliot & McGregor, 2001 ) and burnout were administered to undergraduate students. Structural equation modeling revealed that all 4 dimensions of goal orientation were related to burnout. Avoidance‐related dimensions were positively associated and approach‐related dimensions were negatively associated with burnout. The findings suggest the importance of considering the role of motivational dispositions in development, prediction, and prevention of burnout.     

Canada’s Same-Sex Marriage Law: Exception to or Exemplar of Canada’s Family Policy?

Family policy in Canada is primarily concerned with assisting parents raise their children. This fairly singular approach to family policy is ironic given that Canada does not have a nationally-coordinated family policy. The development of a national family policy has been hampered by Canada’s decentralized governmental structure (i.e., federal and provincial, as well as territorial, governments) and other factors such as diverse geography and different traditions (e.g., a tradition of common law in English Canada, and civil law in Quebec). A recent addition to Canada’s family policy is Bill C-38, The Civil Marriage Act (2005), the law legalizing same-sex marriage. To put Canada’s same-sex marriage law into context, this article presents some preliminary statistics about same-sex marriage in Canada, and considers whether same-sex marriage legislation is a good example of Canadian family policy, or an exception to the rule that Canadian family policy focuses primarily on helping parents socialize their children.     

Book Reviews

Distorted interpretations and abusive uses of the Ham–Noah curse tale abound. This essay explores five common interpretations. Cohen's overly‐imaginative interpretation links wine, genitalia, and reproduction to accent Noah's potency and Ham's presumed designs on that potency. Nineteenth‐century slave owners used the text to undergird dangerous fantasies of white superiority. Fundamentalists, thinking Ham sodomised his father, inappropriately use the text to condemn modern homoeroticism. Some see Ham as uncontrolled libido. Intra‐biblical connections may suggest that Ham's act was maternal incest. The danger of getting stuck in ancient mythostories calls for a creative critique. Perryman puts Ham on trial in an effort to dismantle racist uses of the text, suggesting that a carnivalesque biblical hermeneutic that mocks the injustices perpetuated by this text may be the most effective way to counter textual abuse.