Bio-Inspired Design of Soft Robotic Assistive Devices: The Interface of Physics,Biology, and Behavior

Wearable assistive robotic devices are characterized by an interface, a meeting place of living tissue and mechanical forces, at which potential and kinetic energy are converted to one or the other form. Ecological scientists may make important contributions to the design of device interfaces because of a functional perspective on energy and information exchange. For ecological scientists, (a) behavioral forms are an assembly of whole functional systems from available parts, emerging in energy flows, and (b) nature explores for informationally based adaptive solutions to assemble behavioral forms by generating spontaneous patterns containing fluctuations. We present data from ongoing studies with infants that demonstrate how infants may explore for adaptive kicking solutions. Inspired by the ecological perspective and data from developing humans, ecological scientists may design interfaces to assist individuals with medical conditions that result in physical and/or mental impairment. We present one such device, what is called the “second skin,” to illustrate how a soft, prestressed material, worn on the skin surface, may be used synergistically with synthetic and biological muscles for assisting action. Our work on the second skin, thus far, suggests a set of ecologically inspired principles for design of wearable assistive robotic devices.     

Selected Rorschach Response Characteristics of Sex Offenders

The purpose of this study was to determine if there were significant differences in certain response characteristics of sex offenders and a random sample of non-sex offenders to Rorschach cards II, IV, VI, and VII. The Rorschach responses of both samples were compared in terms of rejections, form level, sexual locations, overt sexual responses, and reaction time. There were significant differences between the samples in number of rejections and reaction time. It was concluded that these measures were useful in differentiating between the two groups.     

Commentary on Entangled Empathy by Lori Gruen

This essay explores four aspects of Gruen's theory. The first section considers her analysis of the concepts of sympathy, pity, and emotional contagion. The second section outlines the main features of her conception of empathy and highlights some worries about empathy that her theory addresses. The third section examines empathy's contributions to moral epistemology. The fourth section queries Gruen's contention that empathy is morally motivating.     

Early cessation success or failure among women attempting to quit smoking: trajectories and volatility of urge and negative mood during the first postcessation week

Aversive symptoms of abstinence from nicotine have been posited to lead to smoking relapse and research on temporal patterns of abstinence symptoms confirms this assumption. However, little is known about the association of symptom trajectories early after quitting with postcessation smoking or about the differential effects of tonic (background) versus phasic (temptation-related) symptom trajectories on smoking status. The current study examined trajectories of urge and negative mood among 300 women using the nicotine patch during the first postcessation week. Ecological momentary assessments collected randomly and during temptation episodes were analyzed using hierarchical linear modeling yielding four individual trajectory parameters: intercept (initial symptom level), linear slope (direction and rate of change), quadratic coefficient (curvature), and volatility (scatter). Early lapsers, who lapsed during the first postcessation week, exhibited more severe tonic urge and phasic negative mood immediately after quitting, and more volatile tonic and phasic urge compared to abstainers. Late lapsers, who were abstinent during the first week but lapsed by 1 month, exhibited more severe tonic urge immediately after quitting compared to abstainers. These results demonstrate the importance of early postcessation urge and negative affect and highlight the value of examining both tonic and phasic effects of abstinence from nicotine.     

Assessment Center Practices in South Africa

Despite the popularity of assessment centers (AC) in South Africa, no recent study exists that describes AC practices in that region. Given this research gap, we conducted a survey study that analyzes the development, execution, and evaluation of ACs in N=43 South African organizations. We report findings regarding AC design, job analysis and job requirements assessed, target groups and positions of the participants after the AC, number and kind of exercises used, additional diagnostic methods used, assessors and characteristics considered in constitution of the assessor pool, observational systems and rotation plan, characteristics, contents, and methods of assessor training, types of information provided to participants, data integration process, use of self‐ and peer‐rating, characteristics of the feedback process, and features after the AC. Finally, we compare the results with professional suggestions to identify pros and cons in current South African AC practices and offer suggestions for improvement.     

A Comparison of Assessment Center Practices in Organizations in German‐speaking Regions and the United States

The development, execution, and evaluation of ACs in 281 German, Swiss, and Austrian organizations are examined for compliance with professional guidelines and consideration of moderator variables of validity, and the results are compared with those reported for U.S. companies ( Spychalski et al., 1997 ). The authors show that some recommendations (e.g., systematic testing of reliability and validity) have not received sufficient attention in either the German‐speaking or U.S. sample and that compliance with guidelines (e.g., the application of information policy to assessees) varies across the countries studied. The most important cross‐national differences in the development, execution, and evaluation of ACs are explained as results of ideologically rooted reservations, insufficient professionalization in some aspects of intraorganizational AC use, as well as specific aspects of the Labor‐Management Act and similar legislation in German‐speaking regions. These factors are linked with a cultural difference—institutionalized collectivism, which is greater in German‐speaking regions than in the United Sates.     

The effects of a target–stimulus reminder on performance in a novel object recognition task

The effects of original training-stimulus pre-test reminders were examined in a novel object recognition (NOR) task. NOR is a task that examines memory for complex stimuli, and is driven by the rats’ tendency to spend significantly more time exploring novel objects over those previously experienced. In this task, a delay is imposed between a training experience during which the animal is allowed to investigate a set of identical objects, and a later test exposure where the animal encounters one of the original objects and a novel object with which it has had no previous experience. Experiment 1 demonstrated that performance at 24 h is significantly worse than at an immediate delay (1 min). In the second experiment, it was demonstrated that neither a 10-s nor a 30-s reminder treatment, in the absence of training, resulted in a level of preference for novelty, a measure of memory for the original object, that was significantly greater than chance. Experiment 3 illustrated significant performance effects of a 30-s training stimulus reminder administered 15 min prior to test with a 24-h retention interval. The final experiment illustrated that the additional 30-s of object exposure is effective in enhancing performance only if it occurs shortly prior to test. Animals receiving the additional 30-s immediately following training did not experience such beneficial effects. It was concluded, based upon these results, that pre-test training-stimulus reminders in this task produce effects similar to those seen in more traditional tasks of learning and memory.