Development of a magnetic-resonance-compatible photoplethysmograph amplifier for behavioral and emotional studies

The purpose of the present study was to develop a magnetic resonance (MR) compatible photoplethysmograph (PPG) system that can measure the raw PPG signal during MR image acquisition. The system consists of an optic sensor that measures the optic signal, an optic cable that transmits a near-infrared optic signal, a signal amplifier, and a filter for noise removal. To minimize interactive noise, only the optic cable and the optic sensor module are located inside the MR room; the signal amplifier and filter are located outside the MR room. An experiment verified that a reliable PPG signal can be obtained without causing a deterioration in the MR image.     

Spatial Segregation and the Impact of Linguistic Multicultural Policies Within the USA

In this article, we examine the impact of multicultural linguistic policy on the residential outcomes of Hispanic and Asian groups in the USA. Arguments linking multiculturalism to residential segregation outcomes are a hotly contested political issue. While spatial segregation is one form of social integration for immigrants, scholars are particularly concerned with residential outcomes because it is theorized to strongly facilitate a wide variety of other forms of integration including language acquisition, the convergence of socio-cultural gender and sexual norms, employment, friendship ties, and intermarriage. From data drawn from the 2010 U.S. Census, we calculate the dissimilarity index for these two groups. We find multicultural linguistic policies increase segregation levels between Asians and non-Hispanic whites, but not between Hispanics and non-Hispanic whites. The results are robust to a host of alternative explanations and model specifications. However, the estimated positive effect of linguistic policy is modest at best and run contrary to fears that multiculturalist policies drastically alter residential outcomes. We close by questioning normative accounts that problematize rising levels of segregation within ethnic communities, which are a far cry from the minority ghettos that are politically portrayed.     

The Challenge of Being a Challenger: Social Dominance Orientation Shapes the Impact of “Challenger vs. Leader” Comparisons

The current research investigates when and how comparative advertising effectiveness is shaped by social dominance orientation (SDO), that is, the degree to which one desires to maintain the status quo in social hierarchies. We examine these issues with regard to “challenger vs. leader” comparisons that seek to change the relative standing of competitors in a product category by documenting the superiority of challenger brands over market leaders. Findings demonstrate that the resistance to change characterizing high (vs. low) SDO individuals makes them respond (1) less favorably to “challenger vs. leader” comparisons that seek to alter the existing category hierarchy and (2) more favorably to “leader vs. challenger” comparisons that preserve this status quo in the category hierarchy. The theoretical implications of these findings are discussed, as are avenues for future research.     

Can an organization's philanthropic donations encourage consumers to give? The roles of gratitude and boundary conditions

This study examines whether an organization's charitable donation will prompt consumers who closely identify with the organization to give to the charity as well. We posit that identifying with a benefactor will enhance the perception that consumers are involved in the donation process, which evokes grateful feelings. We also predict that the amount of the organization's donation will positively moderate the influence of organization identification on charity‐evoked feelings of gratitude, while attitude toward the organization's charity will positively moderate the gratitude–donation relationship. In Study 1, we show how gratitude arises in the context of corporate social responsibility by demonstrating the mediating role of perceived donation contribution in the relationship between organization identification and gratitude. In Study 2, we demonstrate that organization identification has a significant indirect effect on donation intention through gratitude. Multigroup analyses show that the identification–gratitude link is more salient when the organization commits to donating a larger amount of money to a charity. Furthermore, the impact of gratitude on donation intent is significantly stronger for individuals who hold a favorable attitude toward the organization's corporate social responsibility activity. Our findings indicate that an organization's charitable giving also encourages consumers to give to the community via vicariously felt gratitude. Copyright © 2016 John Wiley & Sons, Ltd.     

Reviews: Books Photography

RELATIONAL PSYCHOANALYSIS: THE EMERGENCE OF A TRADITION. Edited by Stephen A. Mitchell and Lewis Aron. 514 pp. Hillsdale, NJ: The Analytic Press, 1999. $39.95. D.H. LAWRENCE AND THE PARADOXES OF PSYCHIC LIFE. By Barbara Ann Schapiro. 155 pp. Albany: State University of New York Press, 1999. $17.95. TECHNOLOGY AS MAGIC: THE TRIUMPH OF THE IRRATIONAL. By Richard Stivers. 240 pp. New York: Continuum Press. 1999. $24. REFLECTIONS ON A RAVAGED CENTURY. By Robert Conquest. 317 pp. New York: W. W. Norton & Company, 2000, $27.95. THE MYSTERIES WITHIN A SURGEON REFLECTS ON MEDICAL MYTHS. By Sherwin B. Nuland. 274 pp. New York: Simon & Schuster, 2000, $24.00. DISEASE, PAIN, AND SUICIDAL BEHAVIOR. By Elisabeth Stenager and Egon Stenager. 127 pp. New York: The Haworth Medical Press, 1998. $17.95. TRAUMA ASSESSMENTS: A CLINICIAN'S GUIDE. By E. B. Carlson. 307 pp. New York: The Guilford Press, 1997. $30. ON INFANCY AND TODDLERHOOD: AN ELEMENTARY TEXTBOOK. By David A. Freedman, M.D. 247 pp. Madison: International Universities Press, Inc., 1999. $27.95. TUESDAYS WITH MORRIE. By Mitch Albom. 192 pp. New York: Doubleday, 1997. $21. THE SORROWS OF THE QUAKER JESUS; JAMES NAYLER AND THE PURITAN CRACKDOWN ON THE FREE SPIRIT. By Leo Damrosch. 322 pp. Cambridge, MA: Harvard University Press, 1996, $39.95. THE PASTORAL CARE OF DEPRESSION: A GUIDEBOOK. By Binford W. Gilbert. 127 pp. New York: The Haworth Pastoral Press, 1998. $19.95. LEARNING DISABILITIES AND PSYCHIC CONFLICT: A PSYCHOANALYTIC CASEBOOK. By Arden Aibel Rothstein, Ph.D., and Jules Glenn, M.D. 504 pp. Madison: International Universities Press, Inc., 1999. $78. HAUNTED CHILDREN: RETHINKING MEDICATION OF COMMON PSYCHOLOGICAL DISORDERS. By Arthur F. Roemmelt, MD. 196 pp. New York: State University of New York Press, 1998. $17.95. NAVIGATING THE DEEP RIVER: SPIRITUALITY IN AFRICAN-AMERICAN FAMILIES. By Archie Smith, Jr. 181 pp. Cleveland, Ohio: United Church Press, 1997. $15.95. AL-JUNUN: MENTAL ILLNESS IN THE ISLAMIC WORLD. Edited by Ihsan Al-Issa. 382 pp. Madison: International Universities Press, 2000. $48. Witnessing the Lack of Sanctuary     

Hope and dysphoria: the moderating role of defense mechanisms

It was hypothesized that the adaptive value of hope cognitions would be dependent upon the quality of an individual's defense style. Undergraduate students completed measures of hope, defense mechanisms, and dysphoria in two studies. As predicted, defense mechanisms significantly moderated the relation between hope and dysphoria. In addition, both hope and defense mechanisms predicted dysphoria as main effects. Individuals who had low hope and an immature defense style had particularly high levels of dysphoria. Low hope was not maladaptive for individuals with a mature defense style, suggesting that a subtype of low hope ("defensive hopelessness") may exist that is analogous to defensive pessimism. Individuals with high hope had low levels of dysphoria regardless of defense style. Overall, the present study suggests that an integration of psychodynamic and cognitive perspectives on hope may be productive.     

Differences in Friendship Networks and Experiences of Cyberbullying Among Korean and Australian Adolescents

ABSTRACT

Cyberbullying is one of the negative consequences of online social interaction. The digital environment enables adolescents to engage in online social interaction beyond the traditional physical boundaries of families, neighborhoods, and schools. The authors examined connections to friendship networks in both online and offline settings are related to their experiences as victims, perpetrators, and bystanders of cyberbullying. A comparative face-to-face survey of adolescents (12–15-year-olds) was conducted in Korea (n = 520) and Australia (n = 401). The results reveal that online networks are partially related to cyberbullying in both countries, showing the size of social network sites was significantly correlated with experience cyberbullying among adolescents in both countries. However there were cultural differences in the impact of friendship networks on cyberbullying. The size of the online and offline networks has a stronger impact on the cyberbullying experiences in Korea than it does in Australia. In particular, the number of friends in cliques was positively related to both bullying and victimization in Korea.     

Stimulus-response incompatibility eliminates inhibitory cueing effects with saccadic but not manual responses

There are thought to be two forms of inhibition of return (IOR) depending on whether the oculomotor system is activated or suppressed. When saccades are allowed, output-based IOR is generated, whereas input-based IOR arises when saccades are prohibited. In a series of 4 experiments, we mixed or blocked compatible and incompatible trials with saccadic or manual responses to investigate whether cueing effects would follow the same pattern as those observed with more traditional peripheral onsets and central arrows. In all experiments, an uninformative cue was displayed, followed by a cue-back stimulus that was either red or green, indicating whether a compatible or incompatible response was required. The results showed that IOR was indeed observed for compatible responses in all tasks, whereas IOR was eliminated for incompatible trials—but only with saccadic responses. These findings indicate that the dissociation between input- and output-based forms of IOR depends on more than just oculomotor activation, providing further support for the existence of an inhibitory cueing effect that is distinct to the manual response modality.     

Spatial acuity and summation on the hand: The role of thermal cues in material discrimination

The spatial characteristics of thermal perception were studied in two experiments that examined how thermal stimuli are processed within the hands. A thermal display that simulates cues associated with making contact with different materials was used in these studies. In the first experiment, participants indicated which of two simulated materials that were presented to the index fingertip was cooler. The results indicated that participants were unable to resolve the two areas of thermal stimulation. In the second experiment, the effects of concurrent thermal stimulation on the ability to discriminate between simulated materials were evaluated. Thermal cues were presented to the middle fingers of both hands and to two adjacent fingers on one hand. Thermal spatial summation was evident across the fingers, which enhanced the ability to discriminate between materials when the cooler stimulus was presented to three fingers. When the same stimulus was presented to the two hands, the stimulation of adjacent fingers altered the perceived thermal response.