What limits tool use in nonhuman primates? Insights from tufted capuchin monkeys (Sapajus spp.) and chimpanzees (Pan troglodytes) aligning three-dimensional objects to a surface

Perceptuomotor functions that support using hand tools can be examined in other manipulation tasks, such as alignment of objects to surfaces. We examined tufted capuchin monkeys’ and chimpanzees’ performance at aligning objects to surfaces while managing one or two spatial relations to do so. We presented six subjects of each species with a single stick to place into a groove, two sticks of equal length to place into two grooves, or two sticks joined as a T to place into a T-shaped groove. Tufted capuchins and chimpanzees performed equivalently on these tasks, aligning the straight stick to within 22.5° of parallel to the groove in approximately half of their attempts to place it, and taking more attempts to place the T stick than two straight sticks. The findings provide strong evidence that tufted capuchins and chimpanzees do not reliably align even one prominent axial feature of an object to a surface, and that managing two concurrent allocentric spatial relations in an alignment problem is significantly more challenging to them than managing two sequential relations. In contrast, humans from 2 years of age display very different perceptuomotor abilities in a similar task: they align sticks to a groove reliably on each attempt, and they readily manage two allocentric spatial relations concurrently. Limitations in aligning objects and in managing two or more relations at a time significantly constrain how nonhuman primates can use hand tools.     

Establishing the Validity of the Spirituality in Clinical Training Scale: Measuring the Level of Integration of Spirituality and Religion in Family Therapy Training

The existing literature suggests that family therapy training programs are not adequately preparing students to address spiritual and/or religious beliefs as a resource for change in therapy. Therefore, this study sought to validate the Spirituality in Clinical Training Scale (SCTS) as a measure of the level of integration of spirituality and/or religion in family therapy training. Additionally, this study examined the latent associations among the subscales of the SCTS and measures of personal importance of spirituality, spiritual clinical competence, and spiritual self-exploration. Finally, given that the type of educational institution (i.e., religious compared to non-religious schools) may influence the extent to which spirituality is addressed in training, this study examined whether attending a religious or non-religious institution moderated the associations among the SCTS and constructs used to assess validity. A sample of 341 master’s and doctoral family therapy students completed an on-line survey for this study. The results suggest that the SCTS is a reliable and valid measure for assessing integration of spirituality into family therapy training. The establishment of this measure is important given that no previous scale measuring the integration of spirituality into therapy training exists. The results also suggest that spiritual self-exploration is associated with increased use of interventions that integrate spirituality into therapy. Implications for clinical training are discussed.     

Vague Quantifiers Demonstrate Little Susceptibility to Frame of Reference Effects

Applied Research in Quality of Life - Comparison standards that people use when responding to survey questions, also called Frames of Reference (FoRs), can influence the validity of self-report...     

Remembering Public,Political Events: A Cross‐Cultural and ‐Sectional Examination of Australian and Japanese Public Memories

We examined and compared the initiating conditions of flashbulb memory (FBM) confidence and event memory accuracy across two different, yet similar public, political events occurring in two different countries: Australia and Japan. To do so, we seized upon the occurrence of two politically important events: the resignation of the Japanese and Australian Prime Ministers in June 2010. In a series of mean and correlation analyses, we concluded that different factors may determine event memory accuracy and FBM confidence across cultures. In particular, the way different cultures emotionally appraise and rehearse the event, their attitude toward the political parties/their political involvement and self‐construal may have important implications for how individuals accurately remember the event and the confidence they hold for their memories of the context when learning of the event. We discuss avenues of future research to better understand the extent to which cultural differences drove these results. Copyright © 2015 John Wiley & Sons, Ltd.     

A moral vision for the presidential election

The essay celebrates the “Mirror of Princes” writing of political philosophy that appeared in Augustine's City of God, the history of Western political philosophy and in the political thought of ancient China. It upholds the tradition of the good ruler while noting the ambiguities of morality in politics. It notes the political power of the American president in the current global context. While emphasizing the need for the good ruler to love the people he serves it focuses on the need for reform in health care, education, and race relations.     

Negative incremental bulk modulus in foams

Negative incremental stiffness is known to occur in structures such as post-buckled flexible tubes and single-cell models. A single foam cell under uniaxial loading buckles and exhibits a non-monotonic S-shaped deformation curve, which is indicative of negative incremental stiffness. Negative stiffness is not observed in bulk materials. For example, individual foam cells display negative stiffness but foams tested in uniaxial compression exhibit a plateau in the stress–strain curve because the buckled cells localize in bands. This behaviour is consistent with the continuum view in which strong ellipticity and, hence, a positive shear modulus G and positive C ₁₁ modulus are required for stability, even for a constrained object. It is hypothesized that a solid with negative bulk modulus can be stabilized by control of the surface displacement. Experimentally, foams were hydrostatically compressed by controlled injections of small volumes of water into a plastic chamber, causing volumetric deformation. A negative incremental bulk modulus was observed in a foam with 0.4-mm cell size beyond about 20% volumetric strain. A foam with large cells, 2.5–4?mm in size, was anisotropic and did not exhibit the cell buckling required for negative modulus.