Ethical Attitude and Behaviors Regarding Computer Use

This study explores the ethical attitudes, behaviors, and perceptions of a sampling of political science students in Taiwan. It investigates their intentions toward observing ethics in the area of digital rights, on topics such as the freedom of expression, freedom of association, equal access to information, confidentiality, security, and protection of intellectual property while using computers. Based on preliminary studies, a questionnaire was designed and distributed to 660 political science and public administration students throughout colleges in Taiwan. Data collected from 440 valid samples have been analyzed using structural equation modeling to test the three sets of hypotheses made by the researchers in the framework of the theory of planned behavior. Findings show attitude, subjective norm, and perceived behavior control of the respondents all have positive impacts on the personal observation of information ethics. In this regard, altruism, the secondary group, and the sense of security have greater influence than egoism, the primary group, and the consideration of self-efficacy. Implications of these findings and recommendations for cultivating computer ethics in Taiwan and elsewhere are discussed.     

Emergence of spontaneous anticipatory hand movements in a probabilistic environment

In this article, we present a novel experimental approach to the study of anticipation in probabilistic cuing. We implemented a modified spatial cuing task in which participants made an anticipatory hand movement toward one of two probabilistic targets while the (x, y)-computer mouse coordinates of their hand movements were sampled. This approach allowed us to tap into anticipatory processes as they occurred, rather than just measuring their behavioral outcome through reaction time to the target. In different conditions, we varied the participants’ degree of certainty of the upcoming target position with probabilistic pre-cues. We found that participants initiated spontaneous anticipatory hand movements in all conditions, even when they had no information on the position of the upcoming target. However, participants’ hand position immediately before the target was affected by the degree of certainty concerning the target’s position. This modulation of anticipatory hand movements emerged rapidly in most participants as they encountered a constant probabilistic relation between a cue and an upcoming target position over the course of the experiment. Finally, we found individual differences in the way anticipatory behavior was modulated with an uncertain/neutral cue. Implications of these findings for probabilistic spatial cuing are discussed.     

Computer‐Based Intervention with Coaching: An Example Using the Incredible Years Program

Increases in personal computer ownership and Internet use patterns provide a potential avenue for dissemination of evidence‐based prevention and treatment interventions. The authors describe the implementation of a psychoeducational intervention (the Incredible Years parenting program, which is designed to promote behavioral change in parents and children) using a hybrid model combining computer‐ and web‐based delivery with professional intervention via phone calls, electronic messages, and home visits. The model attempted to simulate many of the parent training methods shown to be successful in the original program. The intervention was implemented with 90 Head Start families who reported elevated levels of child behavior problems. Of the 45 families offered the intervention in the final year of the project, 37 (82%) completed at least half the program and 34 (76%) completed the entire intervention using procedures refined in light of the initial year's experience. These participants reported high achievement of their self‐determined goals and were highly satisfied with the intervention. The combination of technology with professional coaching represents a potential model for adapting and disseminating evidence‐based interventions.     

心理信息学:网络信息时代下的心理学新发展

在见证了社会计算与计算社会科学的勃兴之后,心理学和信息科学在网络信息时代相遇,催生出心理信息学这门新兴交叉学科。该学科旨在利用计算机与信息科学技术,通过开展网络调查和实验、开发和利用移动设备、建立数据库和分类体系、使用开源软件和数据挖掘技术等,获取、整理和分析心理学研究资料。其对大规模复杂数据的掌控能力,使心理学家可以从新的高度和视野,针对现实和虚拟网络中的个体与群体心理现象展开研究,重新检视已有理论假设并探索新发现。但是,心理信息学在展现巨大潜力的同时,也在技术和研究设计、伦理和研究规范、研究重心与人才培养等诸多方面面临挑战。     

Optimized many body potential for fcc metals

A formalism for optimized many body (OMB) potentials to describe the interatomic interactions in fcc metals is described. The OMB approach is based on the Tersoff potential, widely used to describe covalently bonded materials, and is closely related to the charge optimized many body (COMB) potential formalism for oxides. OMB extends to first nearest neighbors only, and employs a third-order Legendre polynomial to distinguish fcc and hcp structures, the strength of which can be adjusted to match the intrinsic stacking fault energy to arbitrary precision. The potential also predicts generalized stacking fault energy curves that are in very close agreement to the values determined from electronic-structure calculations. This potential is thus well-suited to investigating mechanical properties such as plastic deformation at the atomic scale.