Mindless decision making and environmental issues: gestalt/feature-intensive processing and contextual reasoning in environmental decisions

In the absence of relevant information in working memory during decision consideration, respondents tend to rely on a style of cognitive processing that may result in premature or inaccurate decision making (M. J. Sharps, 2003). M. J. Sharps and S. S. Martin (2002) demonstrated this effect in executive decision making. In the present study, the authors extended these methods to decisions about environmental issues. Respondents rated decisions about issues such as overpopulation, energy policy, and food production in the presence or absence of simple pertinent information. The presence of such information in the immediate context of environmental decisions, and therefore in working memory, significantly improved respondents' ability to understand negative decision consequences. These results demonstrate the importance of contextual information in environmental decision making.     

Mindfulness-based stress reduction effects on moral reasoning and decision making

Previous research has demonstrated that mindfulness-based stress reduction (MBSR) improves psychological functioning in multiple domains. However, to date, no studies have examined the effects of MBSR on moral reasoning and decision making. This single group design study examined the effect of MBSR on moral reasoning and ethical decision making, mindfulness, emotion, and well-being. Additionally, we investigated whether there was an association between the amount of meditation practice during MBSR and changes in moral reasoning and ethical decision making, emotions, mindfulness, and well-being. Results indicated that MBSR was associated with improvements in mindful attention, emotion and well-being. Further, amount of meditation practice was associated with greater improvement in mindful attention. Two-month follow-up results showed that, MBSR resulted in improvements in moral reasoning and ethical decision making, mindful attention, emotion, and well-being. This study provides preliminary evidence that MBSR may potentially facilitate moral reasoning and decision making in adults.     

Freedom in responsibility: on the relevance of "sin" as a hermeneutic guiding principle in bioethical decision making.

This essay deals with questions of responsibility concerning technology, in particular, gene technology and the special problem of research on embryos. I raise issues concerning the extent of humans' authority to act and the limits of human freedom. In what way is that freedom given, and what kind of responsibility results from it? By discussing various concepts of human freedom in the tradition of European philosophy, as juxtaposed to the Protestant understanding of freedom, this essay discusses the restricting limits, and the obligation to take responsibility. It will turn out that the question concerning freedom cannot be answered without understanding what being human involves. From a Christian perspective, this implies that the foundational relationship between human freedom and sin will be central to an assessment of the human ability to take responsibility. By obliterating the limits of human freedom, sin jeopardizes the very essence of that freedom. The project of taking into account the sinful state of the human condition thus aims at developing a realistic picture of the authority of humans in action, even in view of the human tasks of promoting science and research.     

Group decision making in hidden profile situations: dissent as a facilitator for decision quality

The effect of diversity in individual prediscussion preferences on group decision quality was examined in an experiment in which 135 three-person groups worked on a personnel selection case with 4 alternatives. The information distribution among group members constituted a hidden profile (i.e., the correct solution was not identifiable on the basis of the members' individual information and could be detected only by pooling and integrating the members' unique information). Whereas groups with homogeneous suboptimal prediscussion preferences (no dissent) hardly ever solved the hidden profile, solution rates were significantly higher in groups with prediscussion dissent, even if none of these individual prediscussion preferences were correct. If dissent came from a proponent of the correct solution, solution rates were even higher than in dissent groups without such a proponent. The magnitude of dissent (i.e., minority dissent or full diversity of individual preferences) did not affect decision quality. The beneficial effect of dissent on group decision quality was mediated primarily by greater discussion intensity and to some extent also by less discussion bias in dissent groups.     

Peer referencing in adolescent decision making as a function of perceived parenting style

This study examined the relationship between parenting style and adolescent decision making. Two hundred sixty-two college students completed a decision-making scale as well as a parenting scale in an effort to determine if the child-rearing style of their parents was related to the tendency of these late adolescents to reference peers rather than parents or other adults in decision making. The results indicated that adolescents raised by authoritative parents tended to refer to their parents for moral and informational decisions, while adolescents raised by authoritarian, permissive, or neglecting-rejecting parents more often referenced their peers for moral and informational decisions. Adolescents referred to their peers for social decisions regardless of how they were raised. Parental responsiveness was a significant factor in determining the source of adolescent decision-making assistance, but parental demandingness was not. It was concluded that less orientation toward peers during late adolescence seems to be another advantage of authoritative parenting.     

Robust decision making in a nonlinear world

The authors propose a general modeling framework called the general monotone model (GeMM), which allows one to model psychological phenomena that manifest as nonlinear relations in behavior data without the need for making (overly) precise assumptions about functional form. Using both simulated and real data, the authors illustrate that GeMM performs as well as or better than standard statistical approaches (including ordinary least squares, robust, and Bayesian regression) in terms of power and predictive accuracy when the functional relations are strictly linear but outperforms these approaches under conditions in which the functional relations are monotone but nonlinear. Finally, the authors recast their framework within the context of contemporary models of behavioral decision making, including the lens model and the take-the-best heuristic, and use GeMM to highlight several important issues within the judgment and decision-making literature.     

Commentary on "Consensus, clinical decision making, and unsettled cases"

Ethics consultation, while often a process of negotiation between diverse opinions, sometimes requires deeper moral inquiry. The form of such inquiry is suggested by classical casuistry and its attendant doctrine of probabilism.     

Dynamic decision making: a comparison of approaches

This paper is concerned with a specific type of problem, namely dynamic decisions, for which most techniques fail to provide adequate solutions. Here, we present two of the most promising optimization techniques, partially observable Markov decision processes (POMDP) and dynamic decision networks (DDN), while arguing which is the most suitable for this problem domain. Copyright © 2000 John Wiley & Sons, Ltd.     

Multialternative decision field theory: a dynamic connectionist model of decision making

The authors interpret decision field theory (J. R. Busemeyer & J. T. Townsend, 1993) as a connectionist network and extend it to accommodate multialternative preferential choice situations. This article shows that the classic weighted additive utility model (see R. L. Keeney & H. Raiffa, 1976) and the classic Thurstone preferential choice model (see L. L. Thurstone, 1959) are special cases of this new multialternative decision field theory (MDFT), which also can emulate the search process of the popular elimination by aspects (EBA) model (see A. Tversky, 1969). The new theory is unique in its ability to explain several central empirical results found in the multialternative preference literature with a common set of principles. These empirical results include the similarity effect, the attraction effect, and the compromise effect, and the complex interactions among these three effects. The dynamic nature of the model also implies strong testable predictions concerning the moderating effect of time pressure on these three effects.     

Goal-directed decision making as probabilistic inference: a computational framework and potential neural correlates

Recent work has given rise to the view that reward-based decision making is governed by two key controllers: a habit system, which stores stimulus-response associations shaped by past reward, and a goal-oriented system that selects actions based on their anticipated outcomes. The current literature provides a rich body of computational theory addressing habit formation, centering on temporal-difference learning mechanisms. Less progress has been made toward formalizing the processes involved in goal-directed decision making. We draw on recent work in cognitive neuroscience, animal conditioning, cognitive and developmental psychology, and machine learning to outline a new theory of goal-directed decision making. Our basic proposal is that the brain, within an identifiable network of cortical and subcortical structures, implements a probabilistic generative model of reward, and that goal-directed decision making is effected through Bayesian inversion of this model. We present a set of simulations implementing the account, which address benchmark behavioral and neuroscientific findings, and give rise to a set of testable predictions. We also discuss the relationship between the proposed framework and other models of decision making, including recent models of perceptual choice, to which our theory bears a direct connection.     

Conditional mechanisms of decision making

Decision making is an important link in the central part of a reflex—the “mental element” according to Sechenov. The reflex nature of this mental process is revealed in experiments where a voluntary motor reaction is chosen unconsciously as a response to subliminal conditional visual stimuli. Thus, learning which is reflected by “advance” or prior decision making can be performed unconsciously through a conditional reflex. But, once elaborated, temporary connections are preserved only in shortterm memory. They are not transferred to long-term memory, as in the case of recognition of signals. Decision making, being the central mental part of the reflex, like any activity of the brain, is performed in time by a certain cortical structure. Analysis of P₃₀₀ amplitudes shows that decision making is related to local activation of the frontal parts of the cerebral hemispheres. We suggest that the local activation of these areas is induced by conditional excitation of the neuronal mechanisms of focused attention. It provides a “command” to perform a voluntary motor reaction adequate to the conditions at hand. A large part of latency of voluntary motor response of man is spent on decision making, especially in discrimination of signals and in choice of reactions.     

Personality components of decision making

Summary Relationships between proneness to behavioral stereotypy (Ster) measured in a problem-solving task (electromaze) and decision-making behavior (under conditions of risk and certainty, chance and skill) were investigated using 64 subjects. Subjects more stereotyped in the electromaze (Ster ⁺) tended to also be more stereotyped in their decision-making behavior. Ster was not related to extraversion, neuroticism, rigidity or overall electromaze performance, but Ster ^– more often required an excessive number of trials for task solution. The decision making of males tended to be more stereotyped. The results were discussed in terms of the construct validity and theoretical interpretation of Ster.

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Zusammenfassung Es wurden Beziehungen zwischen der Neigung zur Verhaltensstereotypie (Ster), die bei einer Problemlösungsaufgabe gemessen wurde, und dem Entscheidungsverhalten (mit und ohne Risiko, wobei der Erfolg sowohl durch den Zufall wie auch durch das Können der Vp bestimmt wurde) untersucht. Vpn, die sich im Electromaze stereotyp verhielten (Ster ⁺), verhielten sich auch bei ihren Entscheidungen stereotyp. Es wurden keine Beziehungen zwischen Ster und den Variablen Extraversion, Neurotizismus, Rigidität und Gesamtleistung im Electromaze gefunden, jedoch benötigten Ster ^– häufiger eine extrem lange Serie von Versuchen zur Aufgabenlösung. Die männliche Vpn neigten stärker dazu, in Entscheidungssituationen stereotyp zu reagieren. Die Ergebnisse wurden vom Standpunkt der Konstruktvalidität und der theoretischen Grundlage der Ster aus diskutiert.

     

Developmental changes in decision making under risk: The role of executive functions and reasoning abilities in 8- to 19-year-old decision makers

Previous studies have shown that children and adolescents often tend toward risky decisions despite explicit knowledge about the potential negative consequences. This phenomenon has been suggested to be associated with the immaturity of brain areas involved in cognitive control functions. Particularly, “frontal lobe functions,” such as executive functions and reasoning, mature until young adulthood and are thought to be involved in age-related changes in decision making under explicit risk conditions. We investigated 112 participants, aged 8–19 years, with a frequently used task assessing decisions under risk, the Game of Dice Task (GDT). Additionally, we administered the Modified Card Sorting Test assessing executive functioning (categorization, cognitive flexibility, and strategy maintenance) as well as the Ravens Progressive Matrices assessing reasoning. The results showed that risk taking in the GDT decreased with increasing age and this effect was not moderated by reasoning but by executive functions: Particularly, young persons with weak executive functioning showed very risky decision making. Thus, the individual maturation of executive functions, associated with areas in the prefrontal cortex, seems to be an important factor in young peoples’ behavior in risky decision-making situations.