Reviews

Lois Raynor: The Adopted Child Comes of Age. National Institute of Social Services Library No. 36, 1980. George Allen and Unwin. Paperback, [euro]5.50.

W.R. Bion: The Long Weekend. Fleetwood Press, 1982 [euro]9.00.     

Major memory for microblogs

Online social networking is vastly popular and permits its members to post their thoughts as microblogs, an opportunity that people exploit, on Facebook alone, over 30 million times an hour. Such trivial ephemera, one might think, should vanish quickly from memory; conversely, they may comprise the sort of information that our memories are tuned to recognize, if that which we readily generate, we also readily store. In the first two experiments, participants’ memory for Facebook posts was found to be strikingly stronger than their memory for human faces or sentences from books—a magnitude comparable to the difference in memory strength between amnesics and healthy controls. The second experiment suggested that this difference is not due to Facebook posts spontaneously generating social elaboration, because memory for posts is enhanced as much by adding social elaboration as is memory for book sentences. Our final experiment, using headlines, sentences, and reader comments from articles, suggested that the remarkable memory for microblogs is also not due to their completeness or simply their topic, but may be a more general phenomenon of their being the largely spontaneous and natural emanations of the human mind.     

When we like what we know – A parametric fMRI analysis of beauty and familiarity

This paper presents a neuroscientific study of aesthetic judgments on written texts. In an fMRI experiment participants read a number of proverbs without explicitly evaluating them. In a post-scan rating they rated each item for familiarity and beauty. These individual ratings were correlated with the functional data to investigate the neural correlates of implicit aesthetic judgments. We identified clusters in which BOLD activity was correlated with individual post-scan beauty ratings. This indicates that some spontaneous aesthetic evaluation takes place during reading, even if not required by the task. Positive correlations were found in the ventral striatum and in medial prefrontal cortex, likely reflecting the rewarding nature of sentences that are aesthetically pleasing. On the contrary, negative correlations were observed in the classic left frontotemporal reading network. Midline structures and bilateral temporo-parietal regions correlated positively with familiarity, suggesting a shift from the task-network towards the default network with increasing familiarity.     

Magnitude and determinants of behavioral risk reduction: Longitudinal analysis of a cohort at risk for AIDS

The magnitude and predictors of longitudinal behavioral change are reported in a cohort of homosexual men at risk for AIDS. Self-reports of sexual behavior were obtained at two points in time separated by an interval of approximately six months. These self-reports were used to construct both dichotomous and continuous measures of changes in behavior consistent with reduction in the transmission of the AIDS virus (HIV). Although there was considerable variability in behavior. mean changes were consistently in the desired direction. Avoidance of anonymous sexual partners, monogamy, and modification of receptive anal sex to reduce exposure to semen by condom use or withdrawal prior to ejaculation appeared to be especially important in this cohort. Both multiple linear regression and multiple logistic regression were used to examine the relationship between a model of health behavior and these outcomes. Variables examined included knowledge of AIDS. perceived risk of AIDS. the perceived efficacy of behavior in reducing AIDS risk, difficulties with sexual impulse control, belief in biomedical technology to provide a prevention or cure, social norms supportive of behavioral change, and gay network affiliation. Of all these factors, only the availability of supportive peer norms was consistently, significantly and positively related to multiple measures of outcome. Differences between these analyses and longitudinal analyses reported elsewhere are discussed. These results suggest the policies regarding HIV antibody testing should be developed cautiously. taking account of the failure of a sense of risk to predict subsequent behavioral change. They also emphasize the important role of gay organizations in developing social norms supportive of behavioral risk reduction.     

Development of decisional balance and self-efficacy measures for adolescent sedentary behaviors

Writing about traumatic events can produce health benefits, yet emotionally non-expressive or cognitively avoidant individuals may be unwilling or unable to express their emotions. This study examined non-expression, cognitive avoidance, response to writing, and subsequent health. As part of a larger study, participants ( N = 71) with asthma or rheumatoid arthritis (RA) wrote about traumatic experiences for 20 min on three consecutive days. Alexithymia, denial, behavioral disengagement, mental disengagement, focus on/venting of emotions, avoidant thoughts, and health status were assessed at baseline, health status again 4 months after writing. Essays were coded for how personal and how emotional they were, and for narrative structure. Non-expression and cognitive avoidance were neither related to how personal or emotional essays were, nor to affective response to writing. High levels of denial or avoidant thoughts predicted less narrative structure. Avoidant thinking marginally predicted health improvements in RA patients. Results suggest that non-expression and cognitive avoidance do not interfere with writing in terms of emotional engagement, but may influence narrative use.     

Relationship between the number of life events and memory capacity in children

Stressful life events can result into declined memory performance at later age. One hypothesis suggests that stress affects the hippocampus, a brain area important for memory functioning. This study explored a potential relationship between the number of negative stressful life events and hippocampus-dependent declarative but not hippocampus-independent procedural memory performance in a community sample of 255 children, aged 6–12 years. The findings revealed that negative stressful life events were negatively related to verbal declarative memory, but not to nonverbal declarative and procedural memory. The memory impairments could not be accounted for by attention and sleep disturbances, and parenting characteristics as perceived by the child did not influence the vulnerability for the stress-related memory impairments. These findings provide further insight into the deleterious effects of negative stressful life events on learning in school-aged children.     

The World Wide Wait: Exploring Physiological and Behavioral Effects of Download Speed

ABSTRACT

When people use humorous media content, their behavior and assessments of the content may depend on the emotional expressions (e.g., laughter) of those around them. In a laboratory experiment in which 80 participants watched a movie clip with a confederate who either laughed or remained silent, we identified two parallel processes. The confederate’s laughter induced behavioral responses in our participants (laughing or smiling). Through those responses, a corresponding appraisal of the media content was generated: The content was rated funnier in comparison to situations in which the confederate did not laugh. This effect corresponds to emotional contagion processes and was especially pronounced in introverts. Additionally, participants who were low in conscientiousness directly elevated their funniness ratings (more than their own emotional expressions would suggest) when the confederate laughed. Those who were high in conscientiousness, however, lowered their ratings of the content’s funniness in the presence of a laughing confederate. This finding suggests the existence of an additional cognitive process that links confederate’s laughter and participant’s content ratings beyond automatic contagion. Participants with low conscientiousness use the confederate’s laughter as a heuristic cue for the content’s funniness, while highly conscientious participants discount the confederate’s laughter as a cue for content funniness.     

Women Experiencing Psychological Abuse: Are They a Homogenous Group?

Dichotomizing women as “abused” versus “not abused” assumes that any psychological maltreatment results in similar outcomes. A national sample of women in conflictual relationships completed an online survey. Women with no incidence (N = 33), the lowest quartile (N = 86), and the top quartile (N = 81) of psychological maltreatment demonstrated significant differences in reactions to the maltreatment, mental health indicators, personality variables, perceived harm, problematic relationship schemas, and response styles. Women with no psychological abuse and women in the lowest quartile produced similar scores that were typically distinct from the top-quartile women. Effective treatment of women with lower amounts of psychological abuse might not require a unique intervention likely necessary for women experiencing much psychological abuse.     

Testing Posttraumatic Stress as a Mediator of Childhood Trauma and Adult Intimate Partner Violence Victimization

This study examined whether potential posttraumatic stress disorder (PTSD) mediated the relationships between different forms of childhood trauma (sexual abuse, physical abuse, violence between caregivers) and intimate partner violence (IPV) victimization (psychological, physical, sexual). Participants were 1,150 female nurses and nursing personnel. Path analytic findings revealed potential PTSD partially mediated the relationships between childhood sexual abuse and psychological IPV and childhood sexual abuse and sexual IPV. Potential PTSD did not mediate the relationship between other types of childhood trauma and IPV. This study adds to the literature indicating PTSD as a risk factor for revictimization in the form of adult IPV among women. Screening for and treatment of PTSD among female child sexual abuse survivors could prevent future IPV victimization.     

Gender Differences in Reporting Psychological Abuse in a National Sample

Understanding the nature and impact of psychological abuse for males and females is crucial because it might be the precursor of other forms of violence. This study examines reported gender differences in psychologically abusive acts using a national sample of U.S. citizens. The data were collected anonymously from an online administration of the Measure of Psychological Abuse (MPAB). Other measures were included to assess outcomes that might occur due to psychological abuse. Results indicate that there are more similarities than differences in the gender reports of psychological abuse. Compared to males' reports, differences include female reports of certain behaviors leading to more negative emotional and behavioral impact and more negative outcomes due to being in a psychologically abusive relationship.