Types of body representation and the sense of embodiment

The sense of embodiment is vital for self recognition. An examination of anosognosia for hemiplegia—the inability to recognise that one is paralysed down one side of one’s body—suggests the existence of ‘online’ and ‘offline’ representations of the body. Online representations of the body are representations of the body as it is currently, are newly constructed moment by moment and are directly “plugged into” current perception of the body. In contrast, offline representations of the body are representations of what the body is usually like, are relatively stable and are constructed from online representations. This distinction is supported by an analysis of phantom limb—the feeling that an amputated limb is still present—phenomena. Initially it seems that the sense of embodiment may arise from either of these types of representation; however, an integrated representation of the body seems to be required. It is suggested information from vision and emotions is involved in generating these representations. A lack of access to online representations of the body does not necessarily lead to a loss in the sense of embodiment. An integrated offline representation of the body could account for the sense of embodiment and perform the functions attributed to this sense.     

Integrating family therapy in adolescent depression: an ethical stance

Adolescent depression, particularly where suicidal behaviour is involved, is a complex and pressing mental health problem and demanding for families, therapists and services alike. This article reviews the evidence-based literature for adolescent depression including family therapy approaches. It suggests an integrative treatment approach that includes individual psychological treatment like CBT, medication where required and a family therapy intervention is supported by the literature. The focus of the latter is psychoeducation, building resilience and hope, enhancing communication, reducing relational conflict between parents and adolescents and addressing attachment and relationship issues. A systemic framework for integrating family therapy in the evidence- based treatment of adolescent depression is described. This is based on an ethic of hospitality towards different languages of therapy, which is illustrated by a detailed example from family therapy practice.     

Sleep deprivation and sustained attention performance: integrating mathematical and cognitive modeling

A long history of research has revealed many neurophysiological changes and concomitant behavioral impacts of sleep deprivation, sleep restriction, and circadian rhythms. Little research, however, has been conducted in the area of computational cognitive modeling to understand the information processing mechanisms through which neurobehavioral factors operate to produce degradations in human performance. Our approach to understanding this relationship is to link predictions of overall cognitive functioning, or alertness, from existing biomathematical models to information processing parameters in a cognitive architecture, leveraging the strengths from each to develop a more comprehensive explanation. The integration of these methodologies is used to account for changes in human performance on a sustained attention task across 88 h of total sleep deprivation. The integrated model captures changes due to time awake and circadian rhythms, and it also provides an account for underlying changes in the cognitive processes that give rise to those effects. The results show the potential for developing mechanistic accounts of how fatigue impacts cognition, and they illustrate the increased explanatory power that is possible by combining theoretical insights from multiple methodologies.     

“Hooking Up” at College: Does Religion Make a Difference?

Recent attention from media, scholars, and religious leadership has focused on the dating activities of college students, particularly in relation to casual physical encounters or what some have termed "hooking up." In this article, we examine the impact of both individual and institutional religious involvement on "hooking up" in a national sample of college women ( N = 1,000). The results of our analysis reveal several important patterns. First, Catholic college women are more likely to have "hooked up" while at school than college women with no religious affiliation. Second, conservative Protestant college women are less likely to have "hooked up" while at school than college women with no religious affiliation; however, this difference is mediated or explained by church attendance, which is protective against "hooking up." Finally, women who attend colleges and universities with a Catholic affiliation are more likely to have hooked up while at school than women who attend academic institutions with no religious affiliation, net of individual-level religious involvement.     

Essentializing race: implications for bicultural individuals' cognition and physiological reactivity

It is a widely held belief that racial groups have underlying essences. We hypothesized that bicultural individuals who hold this essentialist belief about race are oriented to perceive rigid interracial boundaries and experience difficulty passing between their ethnic culture and the host culture. As predicted, we found that the more strongly Chinese American participants endorsed an essentialist belief about race, the less effective they were in switching rapidly between Chinese and American cultural frames in a reaction time task (Study 1), and the greater emotional reactivity they exhibited (reflected in heightened skin conductance) while they talked about their Chinese and American cultural experiences (Study 2). Taken together, these findings suggest that essentialist beliefs about race set up a mind-set that influences how bicultural individuals navigate between their ethnic and host cultures.     

Is body checking in the eating disorders more closely related to diagnosis or to symptom presentation?

Body checking behaviours and cognitions are seen as underlying the core pathology of eating disorders-the over-evaluation of eating, shape and weight. While it has been demonstrated that levels of behaviours and cognitions differentiate eating-disordered women from non-eating-disordered women, little is known with regard to how these findings relate to diagnostic group. This study aimed to determine whether body checking cognitions and behaviours are best understood with regard to diagnostic category or symptom presentation. Eighty-four eating-disordered women (with diagnoses of anorexia nervosa, bulimia nervosa, binge eating disorder or other Eating Disorders Not Otherwise Specified) completed measures of body checking behaviours and cognitions and eating psychopathology. Results showed that different aspects of body checking were more closely associated with diagnosis and with symptom presentation. Anorexia nervosa and binge-eating-disorder patients had particularly low levels of body checking behaviours and some related cognitions. However, the belief that body checking allows one to be accurate in knowing one's weight was associated with binging and vomiting behaviours, rather than diagnosis. Future directions for research include understanding the links between body checking phenomena and neurological features. Clinical implications are discussed.     

Early temperamental and psychophysiological precursors of adult psychopathic personality

Emerging research on psychopathy in children and adolescents raises the question of whether indicators, such as temperament or psychophysiology, exist very early in life in those with a psychopathic-like personality in adulthood. This study tests the hypothesis that individuals who are more psychopathic in adulthood would be less fearful and inhibited and more stimulation seeking/sociable at age 3 and that they would also show reduced age 3 skin-conductance (SC) responsivity. In a community sample of 335 3-year-olds, behavioral measures of temperament were taken and electrodermal activity was recorded in response to both orienting and aversive tones. R. D. Hare's (1985) Self-Report Psychopathy scale (SRP-II) was administered at follow-up at age 28. Individuals scoring higher on the measure were significantly less fearful and inhibited, were more sociable, and displayed longer SC half-recovery times to aversive stimuli compared with controls at age 3. Contrary to predictions, they also showed increased autonomic arousal and SC orienting. Findings appear to be the first to suggest that a prospective link may exist between temperament and psychophysiology in very young children and psychopathic personality in adulthood.     

Working memory for language is not special: Evidence for an articulatory loop for novel stimuli

The “articulatory loop” for rehearsal of verbal materials in working memory has been shown not to be a unique hard-wired structure associated with spoken language. Specifically, a parallel rehearsal process for sign language occurs in fluent signers. Here we show that the same rehearsal process can occur for unfamiliar, nonmeaningful body movements. We conclude that working memory maintenance does not rely on a dedicated architecture, but instead involves the strategic recruitment of resources as needed for the task demands.