MODELING INFLUENCES ON ALCOHOLICS' RATES OF ALCOHOL CONSUMPTION

Two experiments were designed to examine modeling influences on alcoholics' alcohol consumption. Three male alcoholics were paired with confederates, posing as alcoholics. In Experiment 1, alcoholic-confederate pairs participated in a 1-hour taste-rating task, which involved rating different wines on a list of adjectives. Experiment 2 consisted of 1-hour ad lib access to wine in a naturalistic bar setting. In both experiments, confederates alternated 15-minute periods of heavy and light consumption, drinking fluids resembling wine. The amount of wine consumed by alcoholics in each period was secretly recorded and the data examined on a single subject basis. In Experiment 1, two subjects increased and decreased consumption along with their confederate. The third subject followed the confederate's pattern only after the confederate demonstrated heavy consumption. All three subjects varied consumption with the confederate during Experiment 2, performed later on the same day. These results suggest that alcoholics' alcohol consumption can be modified by the social influences of modeling. The implications of this finding for the loss of control hypothesis and alcoholism treatment maintenance were discussed.     

An ethnographic inquiry of cooperative learning implementation

Qualitative research methods were employed to explore variations in teacher implementation of a research-based model of cooperative learning. Participants included five middle school math and science teachers who were trained in the Johnson, D.W. and Johnson, R.T. [Johnson, D. W., & Johnson, R. T. (1983). The socialization and achievement crisis: Are cooperative learning experiences the answer? Applied Social Psychology, 4, 199-124.] model of cooperative learning. Implementation was examined via interview and observation. Principles from cognitive psychology defined constructs for study, which included teacher concepts, plans, and enactment of cooperative learning in the classroom. Study design included features characteristic of ethnographic inquiry: prolonged engagement, purposeful sampling, persistent observation, multiple source data collection, and recursive interpretation. Triangulation of data sources revealed that relationships between concepts, plans and enactment were mediated by teaching style, teaching context, and degree of teaching expertise. Findings suggest that when attempting to implement cooperative learning lessons, teacher may benefit from attention to teacher and student roles, curricular requirements, instructional time, and classroom management skills. Findings further demonstrate the important contributions of qualitative research to the cooperative learning literature.     

The explanatory potential of artificial societies

It is often claimed that artificial society simulations contribute to the explanation of social phenomena. At the hand of a particular example, this paper argues that artificial societies often cannot provide full explanations, because their models are not or cannot be validated. Despite that, many feel that such simulations somehow contribute to our understanding. This paper tries to clarify this intuition by investigating whether artificial societies provide potential explanations. It is shown that these potential explanations, if they contribute to our understanding, considerably differ from potential causal explanations. Instead of possible causal histories, simulations offer possible functional analyses of the explanandum. The paper discusses how these two kinds explanatory strategies differ, and how potential functional explanations can be appraised.     

Downward causation in fluid convection

Recent developments in nonlinear dynamics have found wide application in many areas of science from physics to neuroscience. Nonlinear phenomena such as feedback loops, inter-level relations, wholes constraining and modifying the behavior of their parts, and memory effects are interesting candidates for emergence and downward causation. Rayleigh–Bénard convection is an example of a nonlinear system that, I suggest, yields important insights for metaphysics and philosophy of science. In this paper I propose convection as a model for downward causation in classical mechanics, far more robust and less speculative than the examples typically provided in the philosophy of mind literature. Although the physics of Rayleigh–Bénard convection is quite complicated, this model provides a much more realistic and concrete example for examining various assumptions and arguments found in emergence and philosophy of mind debates. After reviewing some key concepts of nonlinear dynamics, complex systems and the basic physics of Rayleigh–Bénard convection, I begin that examination here by (1) assessing a recently proposed definition for emergence and downward causation, (2) discussing some typical objections to downward causation and (3) comparing this model with Sperry’s examples. The aim of science is not things themselves, as the dogmatists in their simplicity imagine, but the relations among things; outside these relations there is no reality knowable. – Poincaré     

Solidarity in a Technocratic Age

Do free markets teach us how to construct humane social relations or do they impede us from doing so? We discuss social scientific evidence on the nature of commercialization and its consequences for moral formation. From a virtue ethics perspective, people face a need to learn and practice the good. When interactions transition into the market sphere, we argue commercialization can fundamentally alter the nature of relationships, particularly for those relations formerly based on gift, sacrifice, and obligation. While modern social scientists accurately identify problems resulting from commercialization, we argue for the importance of theological social ethics, which can offer a penetrating analysis of the habits of gift and communal responsibility. Catholic social teaching in particular outlines the set of principles and institutions which foster sacrificial gift‐giving among individuals and organizations within society, providing a bulwark against the threat commercialization poses to many social relations.     

Chaos breeds autonomy: connectionist design between bias and baby-sitting

In connectionism and its offshoots, models acquire functionality through externally controlled learning schedules. This undermines the claim of these models to autonomy. Providing these models with intrinsic biases is not a solution, as it makes their function dependent on design assumptions. Between these two alternatives, there is room for approaches based on spontaneous self-organization. Structural reorganization in adaptation to spontaneous activity is a well-known phenomenon in neural development. It is proposed here as a way to prepare connectionist models for learning and enhance the autonomy of these models.     

青少年的自我意识及其与社会适应行为的关系

运用问卷调查法对439名中学生进行调查,探讨青少年社会适应行为与自我意识之间的关系。结果发现:(1)青少年自我意识的总体发展水平比较好,年级差异显著,性别差异不显著。(2)青少年自我意识对其社会适应行为具有较好的预测性,能够解释良好适应行为13.50%~39.40%的变异,解释适应不良行为5.90%~14.90%的变异;(3)自觉性和品德评价对良好社会适应行为总体和学习适应的正向预测作用具有跨年级和跨性别的稳定性;(4)在不同年级样本中,焦虑感是神经症行为的稳定和强有力的正向预测因素,自制力是社会性不良行为的稳定和强有力的负向预测因素。在不同性别样本中,自制力是独立生活和经济活动的稳定正向预测因素。     

心理学研究方法的系统分析与体系重构

心理学研究方法在心理学的发展中占有特别重要的地位。当前,心理学研究方法已经成为心理学中的一门重要学科,相关论文和教材很多。本文首先对心理学研究方法的发展进行了简要概述,重点指出了心理学研究方法研究中存在的重大问题,在此基础上,我们对心理学研究方法进行了系统分析,并构建了心理学研究方法的新体系。     

Emergent complexity: What uphill analysis or downhill invention cannot do

In these notes we review emergent phenomena in complex systems, emphasizing ways to identify potential underlying universal mechanisms that generate complexity. The discussion focuses on the emergence of collective behavior in dynamical systems when they are poised near a critical point of a phase transition, either by tuning or by self-organization. We then present the rationale for our proposal that the brain is naturally poised near criticality and review recent results as well as the implications of this view of the functioning brain.     

A Dynamical Systems Approach to Manual Tracking Performance

Manual tracking performance was investigated from the perspective of dynamical systems theory. The authors manipulated the type of visual display, the control system dynamics, and the frequency of the sinusoidal input signal to examine couplings with various phases between the visual signal and control movements. Analyses of the system output amplitude ratio and relative phase showed that participants (N = 24) performed poorly with 90° relative phase coupling. All the couplings became less stable as the movement frequency increased. The authors developed an adaptive oscillator model with linear damping to describe the coupled system consisting of the human performer, the visual display, and the control system dynamics. A geometric account of the stability of performance at different relative phases is also presented.