Evolution and Process Thought

Five topics arising from evolutionary biology open new possibilities for fruitful dialogue between scientists and proponents of the process philosophy of Alfred North Whitehead. These topics (with the main authors whose views are discussed) are: (1) Contingency and Teleology, Stephen Jay Gould, Simon Conway Morris; (2) The Baldwin Effect and Interiority, Bruce Weber and David DePew, Daniel Dennett, Terrence Deacon, Susan Oyama; (3) Complexity and Design, Michael Behe, David Griffin; (4) Hierarchical Levels and Downward Causation, Theo Meyering, Charles Hartshorne; and (5) Self-organization and Emergence, Terrence Deacon, Philip Clayton. In the final section, I look at the relation of science and metaphysics and ask whether the subjectivity postulated by process philosophy is accessible to scientific investigation.     

A New David Preparing for a New Goliath: A Question of Corporate Competence

Like the biblical David practicing his skill in defense of his flock, small companies are now gearing up their resident competencies in redesigning their organization in order to be flexible with changing needs. Like David, the day of facing Goliath may come without warning. This article tells the story of a small company engaged in rapid growth. The participative redesign of the organizational structure is presented as a narrative against the background of a simplified model of organizational design and the method of implementation. Key success factors are illustrated not only through anecdotes but also through measurements of results at the end of the first year.     

The Evolutionary Challenge for Technology

The evolutionary challenge for technology in the third millennium is one of designing the vehicles for sustainable human and societal development in partnership with earth. The challenge calls for the conscious creation of evolutionary systems-not through the "hard technologies" that shape and mold the physical infrastructure of our planet, but through "soft technologies" that augment creative and constructive processes of human interaction. Through them, humanity has the opportunity to create the conditions for the emergence of a true learning society at both regional and global levels. The meaning of key terms such as evolution, technology, and development must be explored if we are to create a shared understanding of the contemporary survival challenges faced by humanity. This paper explores both the promise and the threat faced by a techno-civilization such as is emerging on our planet in the early twenty-first century.     

Incidental regulation of attraction: The neural basis of the derogation of attractive alternatives in romantic relationships

Although a great deal of research addresses the neural basis of deliberate and intentional emotion-regulation strategies, less attention has been paid to the neural mechanisms involved in implicit forms of emotion regulation. Behavioural research suggests that romantically involved participants implicitly derogate the attractiveness of alternative partners, and the present study sought to examine the neural basis of this effect. Romantically committed participants in the present study were scanned with functional magnetic resonance imaging (fMRI) while indicating whether they would consider each of a series of attractive (or unattractive) opposite-sex others as a hypothetical dating partner both while under cognitive load and no cognitive load. Successful derogation of attractive others during the no cognitive load compared to the cognitive load trials corresponded with increased activation in the ventrolateral prefrontal cortex (VLPFC) and posterior dorsomedial prefrontal cortex (pDMPFC), and decreased activation in the ventral striatum, a pattern similar to those reported in deliberate emotion-regulation studies. Activation in the VLPFC and pDMPFC was not significant in the cognitive load condition, indicating that while the derogation effect may be implicit, it nonetheless requires cognitive resources. Additionally, activation in the right VLPFC correlated with participants' level of relationship investment. These findings suggest that the RVLPFC may play a particularly important role in implicitly regulating the emotions that threaten the stability of a romantic relationship.     

Sketches from a design process: creative cognition inferred from intermediate products

Novice designers produced a sequence of sketches while inventing a logo for a novel brand of soft drink. The sketches were scored for the presence of specific objects, their local features and global composition. Self-assessment scores for each sketch and art critics' scores for the end products were collected. It was investigated whether the design evolves in an essentially random fashion or according to an overall heuristic. The results indicated a macrostructure in the evolution of the design, characterized by two stages. For the majority of participants, the first stage is marked by the introduction and modification of novel objects and their local and global aspects; the second stage is characterized by changes in their global composition. The minority that showed the better designs has a different strategy, in which most global changes were made in the beginning. Although participants did not consciously apply these strategies, their self-assessment scores reflect the stages of the process.     

Effects of the discriminability of alternatives in three-alternative concurrent-schedule performance

Six pigeons were trained on two- and three-alternative concurrent schedules in which the alternatives were signaled by different wavelengths of light on the main pecking key. The schedules were arranged according to a switching-key procedure in which pecks on a white side key produced a 3-s blackout and, intermittently, a change in the variable-interval schedule of food programmed on the main (center) key after the blackout. In Part 1, a two-alternative concurrent variable-interval schedule was arranged in which the alternatives were signaled by 560 nm and 630 nm. Parts 2 and 3 arranged three-alternative concurrent variable-interval schedules with the alternatives signaled by 560 nm, 600 nm, and 630 nm (Part 2) and 560 nm, 623 nm, and 630 nm (Part 3). Within each part, the relative rate of food reinforcers available on the alternatives was varied across a wide range. In all parts of the experiment, the ratios of responses emitted between pairs of alternatives were more extreme than the ratios of reinforcers obtained on the pairs of alternatives, a result termed overmatching. In Parts 2 and 3, generalized matching sensitivities between pairs of alternatives were found to be higher when the reinforcer rate on the third alternative was low than when it was high—an apparent failure of the constant-ratio rule. The data were well described by an extension of the Davison and Jenkins (1985) model, which assumes differing discriminabilities between concurrent-schedule alternatives in combination with a punishing effect of blackout following changeovers.     

Explaining and Explaining Away in Cosmology and Theology

Modern cosmology raises two significant questions that potentially relate to theology: does the universe have a beginning, and why is the universe so apparently fine tuned for life? In a significant paper, Mark McCartney and David Glass ask whether science can explain away, or at least explain away in part, such features of the universe in cosmology and other sciences that may alternatively invite a theological explanation. In this paper I argue that two proposals made by cosmologists fail to explain away the universe's beginning, and that science is powerless to explain away the more fundamental question as to why there is a universe at all. I argue similarly that scientific, or quasi-scientific, proposals such as the multiverse fail to explain away the fine tuning.     

Higher-order approximations to the distributions of fit indexes under fixed alternatives in structural equation models

Higher-order approximations to the distributions of fit indexes for structural equation models under fixed alternative hypotheses are obtained in nonnormal samples as well as normal ones. The fit indexes include the normal-theory likelihood ratio chi-square statistic for a posited model, the corresponding statistic for the baseline model of uncorrelated observed variables, and various fit indexes as functions of these two statistics. The approximations are given by the Edgeworth expansions for the distributions of the fit indexes under arbitrary distributions. Numerical examples in normal and nonnormal samples with the asymptotic and simulated distributions of the fit indexes show the relative inappropriateness of the normal-theory approximation using noncentral chi-square distributions. A simulation for the confidence intervals of the fit indexes based on the normal-theory Studentized estimators under normality with a small sample size indicates an advantage for the approximation by the Cornish–Fisher expansion over those by the noncentral chi-square distribution and the asymptotic normality. The author is indebted to the reviewers for their comments and suggestions, which have led to the improvement of the previous versions of this paper. This work was partially supported by Grant-in-Aid for Scientific Research from the Japanese Ministry of Education, Culture, Sports, Science, and Technology.     

A developmental dissociation between category and function judgments about novel artifacts

Two studies investigated the relative importance of information about intended design and current use on judgments about the function (Experiment 1) or category (Experiment 2) of novel artifacts in preschool children and adults. Adults assigned function and name on the basis of information about design across all conditions, while children’s decisions about function dissociated from decisions about category. Function judgments (in both 4 and 6-year-olds) were neutral between design and current use, both when the current use was idiosyncratic (e.g. performed by just one agent) and conventional (performed by many people; Experiment 1). By contrast, where category judgments were required for the very same objects (Experiment 2), children named according to design intentions - but only if the alternate function was idiosyncratic. Judging function and assigning category are thus cognitive tasks that draw on different information across development, a fact that should be captured by theories of developing artifact concept structure.