Taking a hands-on approach: apparent grasping ability scales the perception of object size

We examined whether the apparent size of an object is scaled to the morphology of the relevant body part with which one intends to act on it. To be specific, we tested if the visually perceived size of graspable objects is scaled to the extent of apparent grasping ability for the individual. Previous research has shown that right-handed individuals perceive their right hand as larger and capable of grasping larger objects than their left. In the first 2 experiments, we found that objects looked smaller when placed in or judged relative to their right hand compared to their left. In the third experiment, we directly manipulated apparent hand size by magnifying the participants' hands. Participants perceived objects to be smaller when their hand was magnified than when their hand was unmagnified. We interpret these results as demonstrating that perceivers use the extent of their hands' grasping abilities as "perceptual rulers" to scale the apparent size of graspable objects. Furthermore, hand size manipulations did not affect the perceived size of objects too big to be grasped, which suggests that hand size is only used as a scaling mechanism when the object affords the relevant action, in this case, grasping.     

A social‐contextual understanding of concordance and discordance between maternal prenatal representations of the infant and infant–mother attachment

This prospective study examined the relationship between maternal prenatal representations of the infant and later infant–mother attachment, including contextual factors related to concordance and discordance among dyads over time. Participants were 173 pregnant women between the ages of 18 and 40 who were interviewed during their last trimester of pregnancy and 2 and 13 months after birth. Maternal representations were assessed by the Working Model of the Child Interview during pregnancy (WMCI; C.H. Zeanah, D. Benoit, L. Hirshberg, M.L. Barton, & C. Regan, 1994), and infant–mother attachment was assessed through the Strange Situation procedure (M.D.S. Ainsworth, M. Blehar, E. Waters, & S. Wall, 1978) when infants were 13 months old. There was substantial discordance between maternal and infant classifications, although a significant concordance rate was found when classifications were collapsed into balanced/secure and nonbalanced/insecure groups based on prenatal representations and postnatal infant attachment groups (60%; χ² = 6.90, p < .01; κ .20). As expected, discordance between maternal representations and infant–mother attachment was meaningfully related to contextual risk factors, maternal depression, and infant behaviors.     

Profiles of Women Survivors: The Development of Agency in Abusive Relationships

Systematic analysis of interview data for 6 African American and 4 European American women who were survivors of battering and who are marginalized in society indicated that the women used active strategies (e.g., social support resources) to preserve their sense of self and agency within the conditions of violence. Previous experiences of abuse and early entry into relationships made the women more vulnerable to abuse, and limited economic resources, high levels of stress, social norms, and lack of support resources contributed to the women's feeling of entrapment in their relationships.     

Commentary on “Trauma to the Psyche and Soma”

This case report addresses assessment and treatment considerations for a patient suffering from posttraumatic stress disorder (PTSD) in the context of mild traumatic brain injury and ongoing pain. Management of this case is based on the application of evidence-based therapy, and of cognitive behaviour therapy, for PTSD reduction. Assessment and treatment approaches recognize that delivery of treatment requires modification to allow exposure therapy for individuals who are partially amnesic of their traumatic experience. Further, administering exposure and cognitive therapy for patients with cognitive impairment requires specific means of treatment delivery to allow adequate compliance with therapy tasks. This case highlights that evidence-based approaches can be usefully applied to complex presentations but they may require modifications that recognize obstacles associated with comorbid conditions.     

Reason-Giving and the Natural Normativity of Argumentation

Topoi - Argument is a pervasive feature of human interaction, and in its natural contexts of occurrence, it is organized around the management of disagreement. Since disagreement can occur around...     

THE COLLAPSE OF OLIGARCHIC CAPITALISM AND THE RISE OF REGENERATIVE LEARNING: HOW THE SCIENCE OF ENERGY SYSTEMS CLARIFIES WHAT’S HAPPENING TODAY AND WHAT COMES NEXT

We live in a head-spinning, gut-wrenching time of multiplying crises. At home we face outsourced jobs, crumbling cities, underpaid teachers, unaffordable healthcare, endless wars, political corruption, a co-opted corporate media, skyrocketing inequality, and public “austerity” measures whose main purpose is to make tax-breaks for the rich more affordable. Working-class stagnation is producing widespread anxiety, mounting debt, and “despair deaths” from opioid abuse. Fear is fueling populist outrage, along with extremism, authoritarianism, and the conditions for a fascist takeover. Meanwhile, climate change poses an existential threat to humanity itself. All of these calamities spring from the same root cause: an oligarchic capitalism that puts short-term profit for owners over people and planet. While this system seems immutable, upheavals from Occupy Wall Street to the rise of right-wing populism signal a backlash to a political–economic establishment that treats people and planet as resources to be pillaged and expenses to be minimized. Its failures have also been driving the development of new possibilities in the form of more systemic approaches. Still, while systems thinking has improved approaches in fields from agriculture to medicine, so far none of these reforms have been able to channel public frustration into true transformation because none addresses the root problem: oligarchy. The science of systemic vitality we need is also being born, but so far, its findings are diffuse. This article shows how the science of energy systems can galvanize today’s economic reformation by articulating the common sense rules and rigorous measures of systemic vitality, while anchoring them in an evidence-based vision of humanity as a collaborative learning species. The result is a practical path to building systemic socioeconomic vitality by revitalizing human networks, energizing collective learning, and clarifying why oligarchic capitalism is a distortion of our original democratic free-enterprise dream, which is now careening toward collapse.     

A sex difference in the specificity of sexual arousal

Sexual arousal is category-specific in men; heterosexual men are more aroused by female than by male sexual stimuli, whereas homosexual men show the opposite pattern. There is reason to believe that female sexual arousal is organized differently. We assessed genital and subjective sexual arousal to male and female sexual stimuli in women, men, and postoperative male-to-female transsexuals. In contrast to men, women showed little category specificity on either the genital or the subjective measure. Both heterosexual and homosexual women experienced strong genital arousal to both male and female sexual stimuli. Transsexuals showed a category-specific pattern, demonstrating that category specificity can be detected in the neovagina using a photoplethysmographic measure of female genital sexual arousal. In a second study, we showed that our results for females are unlikely to be explained by ascertainment biases. These findings suggest that sexual arousal patterns play fundamentally different roles in male and female sexuality.     

Acute stressors and cortisol responses: a theoretical integration and synthesis of laboratory research

This meta-analysis reviews 208 laboratory studies of acute psychological stressors and tests a theoretical model delineating conditions capable of eliciting cortisol responses. Psychological stressors increased cortisol levels; however, effects varied widely across tasks. Consistent with the theoretical model, motivated performance tasks elicited cortisol responses if they were uncontrollable or characterized by social-evaluative threat (task performance could be negatively judged by others), when methodological factors and other stressor characteristics were controlled for. Tasks containing both uncontrollable and social-evaluative elements were associated with the largest cortisol and adrenocorticotropin hormone changes and the longest times to recovery. These findings are consistent with the animal literature on the physiological effects of uncontrollable social threat and contradict the belief that cortisol is responsive to all types of stressors.     

Nouns and Verbs: A Comparison of Definitional Style

The present investigation is a study of the definitional style of nouns and verbs in typically developing school-age children. A total of 30 children in upper-elementary grades provided verbal definitions for 10 common high-frequency nouns (e.g., apple, boat, baby) and 10 common high-frequency verbs (e.g., climb, sing, throw). All definitions were coded and scored for semantic content (meaning) and grammatical form (syntax). Results revealed no significant difference between noun and verb definitions for content scores. For form, however, noun definition scores were significantly higher than verb definition scores. A supplementary analysis was conducted to explore development of noun and verb definitions in upper-elementary grades. Input factors, word frequency, as well as theory of the organization of the mental lexicon are discussed in relation to definitional skill.