Recent debates over adults' theory of mind use have been fueled by surprising failures of perspective-taking in communication, suggesting that perspective-taking may be relatively effortful. Yet adults routinely engage in effortful processes when needed. How, then, should speakers and listeners allocate their resources to achieve successful communication? We begin with the observation that the shared goal of communication induces a natural division of labor: The resources one agent chooses to allocate toward perspective-taking should depend on their expectations about the other's (...) allocation. We formalize this idea in a resource-rational model augmenting recent probabilistic weighting accounts with a mechanism for (costly) control over the degree of perspective-taking. In a series of simulations, we first derive an intermediate degree of perspective weighting as an optimal trade-off between expected costs and benefits of perspective-taking. We then present two behavioral experiments testing novel predictions of our model. In Experiment 1, we manipulated the presence or absence of occlusions in a director–matcher task. We found that speakers spontaneously modulated the informativeness of their descriptions to account for “known unknowns” in their partner's private view, reflecting a higher degree of speaker perspective-taking than previously acknowledged. In Experiment 2, we then compared the scripted utterances used by confederates in prior work with those produced in interactions with unscripted directors. We found that confederates were systematically less informative than listeners would initially expect given the presence of occlusions, but listeners used violations to adaptively make fewer errors over time. Taken together, our work suggests that people are not simply “mindblind”; they use contextually appropriate expectations to navigate the division of labor with their partner. We discuss how a resource-rational framework may provide a more deeply explanatory foundation for understanding flexible perspective-taking under processing constraints. (shrink)

The language we use over the course of conversation changes as we establish common ground and learn what our partner finds meaningful. Here we draw upon recent advances in natural language processing to provide a finer‐grained characterization of the dynamics of this learning process. We release an open corpus (>15,000 utterances) of extended dyadic interactions in a classic repeated reference game task where pairs of participants had to coordinate on how to refer to initially difficult‐to‐describe tangram stimuli. We find that (...) different pairs discover a wide variety of idiosyncratic but efficient and stable solutions to the problem of reference. Furthermore, these conventions are shaped by the communicative context: words that are more discriminative in the initial context (i.e., that are used for one target more than others) are more likely to persist through the final repetition. Finally, we find systematic structure in how a speaker's referring expressions become more efficient over time: Syntactic units drop out in clusters following positive feedback from the listener, eventually leaving short labels containing open‐class parts of speech. These findings provide a higher resolution look at the quantitative dynamics of ad hoc convention formation and support further development of computational models of learning in communication. (shrink)

The dualistic structures permeating western culture emphasize radical discontinuity between humans and nonhumans, but receptive attention to nonhuman others discloses both continuity and difference prevailing between other forms of life and our own. Recognizing that agency and subjectivity abound within nature alerts us to our potential for dominating and oppressing nonhuman others, as individuals and as groups. Reciprocally, seeing ourselves as biological beings may facilitate reconstructing our social reality to undo such destructive relationships.

Abstract:In her 2002 essay, "Anthropocentrism, Artificial Intelligence, and Moral Network Theory: An Ecofeminist Perspective," Victoria Davion points out, utilizing Val Plumwood's ecofeminist analysis, the faulty anthropocentric, logocentric assumptions made both within the artificial intelligence (AI) community, generating serious problems in the effort to build "intelligent" machines, and in moral philosophy, its "rule-based picture of moral reasoning" (169) coming under fire from the emerging field of neural net research. Davion demonstrates prescience regarding the direction in which both disciplines eventually move, as (...) they learn important "lessons from nature": that intelligence and moral reasoning are widely distributed throughout the Biosphere and are not based upon what has been taken as paradigmatic—the reductive, linear logic, abstracted from all context, characteristic of only one possible way of approaching the world. I present updates regarding artificial intelligence, neuropsychology, and the philosophical analysis of anthropocentrism, affirming that directing open, respectful attention toward the Other in the real, living world will eventually provide us with the ontological foundation for a nonanthropocentric ethics capable of sustaining truly intelligent and moral ways of living. (shrink)

Whaling is back on the international stage as pro-whaling interests push to reopen commercial whaling by overturning the moratorium imposed in 1986. Proponents of ending the ban are using two strategies: (1) appealing to public sentiment that supports indigenous subsistence whaling by attempting to cloak commercial whaling in the same guise and (2) maintaining that reopening commercial whaling is the “scientific” option. I reject both ploys, and instead shift the focus for global debate to scrutinizing the industrial economic model that (...) Western culture is currently imposing on the rest of the world, a model which ultimately reduces all life forms to mere commodities for the marketplace. (shrink)

Biological systems are highly complex, and for this reason there is a considerable degree of uncertainty as to the consequences of making significant interventions into their workings. Since a number of new technologies are already impinging on living systems, including our bodies, many of us have become participants in large-scale “social experiments”. I will discuss biological complexity and its relevance to the technologies that brought us BSE/vCJD and the controversy over GM foods. Then I will consider some of the complexities (...) of our social dynamics, and argue for making a shift from using the precautionary principle to employing the approach of evaluating the introduction of new technologies by conceiving of them as social experiments. (shrink)

The ecofeminist critique of dualism is applied to a consideration of two alternative paths that we might take in transplantation medicine: the utilization of organs and tissues taken from nonhuman animals, and/or further development of techniques for employing human organs and tissues, including human fetal tissue. It is concluded that from an evolutionary perspective, the assumption of a vast value disparity between human and nonhuman life is untenable, and from a moral point of view the establishment of yet another institution (...) based on a dualistic opposition between human life, postulated to be of ultimate value, versus devalued, disposable "other" life is unacceptable. We are urged to forego xenotransplantation and instead take responsibility for whatever manipulations we choose, respectfully, to make with life that is already valued as "self" rather than "other.". (shrink)

Val Plumwood's criticism of the ecologically irrational p-centric logic of rationalism, which neglects or denies its dependence on all that is not-p, undercutting its own biological base while denying the illness of the culture it has spawned, is juxtaposed with the clinical picture of the linguistic left hemisphere acting without benefit of input from the more real-time-and-space-centered right. Exploring the metaphor suggests that visual gestalts depicting actual relationships might be effective in drawing our industrial culture's collective attention away from its (...) fascination with endless lines of alphabetic characters and abstract numbers multiplying their way toward infinity, bringing it back to reality and ecological rationality. In illustration, ongoing habitat destruction wrought on the ground as humans follow the detached logic of economic rationalism is seen to reflect, rather than the illusion of eternal "growth" conveyed by Cartesian axes, the relentless finitude of fractal geometry's Sierpinski gasket. (shrink)

The way in which the theory of “group selection” was treated as a heresy in evolutionary biology during the latter part of the twentieth century is considered as itself being an emergent group phenomenon, and some possible reasons why this particular theory had to be repudiated by the dominant group are explored. Then the process of “heresy-hammering” in general is examined as a behavior that can block important feedback, allowing the group to engage in a form of collective selfdeception, and (...) is therefore judged to be epistemically irresponsible and potentially maladaptive in terms of the group’s long-term survival. Some possible methods of foiling this process—which seems to operate largely below the level of full conscious awareness—are proposed. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Introduction:Beyond Nature/Culture Dualism: Let's Try Co-Evolution Instead of "Control"Ronnie Hawkins (bio)In the original call for papers for this special issue, nature/culture dualism was characterized as a way of thinking that holds human culture and nonhuman nature to be radically different ontological spheres, hyperseparated and oppositional, or, as Val Plumwood maintains in her essay, an orientation that assumes "separate casts of characters in separate dramas." In the human sphere, individuals (...) are unique and their lives are precious (at least theoretically), with concerns understood "from the inside," in terms of experience, intention and agency. In the sphere of nature, on the other hand, nonhuman beings are seen "from the outside," at best as replaceable members of species or populations needed for ecosystem functioning and, at worst, as unagentive, thinglike objects open for unbridled human exploitation. With our vast information and communication systems now largely in place, however, our human "noösphere" is rapidly enlarging to place us firmly within the biosphere (which, of course, in the imagery of Venn diagrams, must make up the larger circle on the screen), illuminating "both casts in both dramas," or perhaps joining all actors on the stage in a many-act, multidimensional play, the denoument of which, whether or not the extant lifeforms on this [End Page 1] planet will continue to evolve, remains as yet unwritten. The five essays in this collection speak to these points, and together they develop an alternative vision to our present dualistic impasse, seeing multiple natural agencies engaged with humanity in ongoing co-evolution and, as Freya Mathews suggests, raising the hope for a synergistic restructuring of lifeways that may yet save us from anthropogenic catastrophe.In "The Culture of Nature As Seen Through Mississippian Geographies," Jeff Baldwin shows us the broad scope of interacting agents, human and nonhuman, biological and geological, in what he terms "the nature-culture of the Mississippi River," as highlighted by the recent devastation of human habitation along the Gulf Coast of the United States wrought by Hurricanes Katrina and Rita. By enacting a role in which we "believe [our]selves to rule over a mechanistic world," we humans have, over the last century or so, stemmed the natural flooding of the Mississippi, rerouting the sediments that maintained and extended the delta, funneling them into the sea and thereby bringing about the subsidence and erosion of hundreds of square miles of coastal land. Concomitantly, we have let agricultural runoff from the huge Mississippi drainage basin eject excess nutrients into the Gulf of Mexico, stimulating algal blooms and die-offs, depleting the water of oxygen so as to create a hypoxic "dead zone" that is now the size of Massachusetts, and (though Baldwin does not discuss this aspect of the problem) we have released enough petrochemical pollution in the area to have earned the lower reaches of the River the name "Cancer Alley" decades ago. A failure to grasp the import of these large anthropogenic effects is, sadly, evident in calls for rebuilding the New Orleans area according to the same mechanistic model that has already proven so inadequate. Baldwin observes that the earth changes wrought through human cultural innovation often occur so rapidly, or have their negative feedbacks technologically so displaced through time and space, that their eventual impacts on the larger system may initially go unappreciated. His vision of "the culture of nature," however, is ultimately an optimistic one, since his functional understanding of culture is that it ultimately works toward mutualism, promoting increasingly appropriate relationships among all interacting components, and he finds evidence of a growing effort to establish an "intentional co-evolution," a conscious alignment of human projects with the ongoing projects of a living nature that encompasses them. [End Page 2]If Baldwin's essay helps us see our human activities "from the outside"—not just "from within" prevailing human culture, where they seem taken-for-granted necessities given a certain form of social construction, but as they alternatively appear inside biospherical space, often as inappropriate, exploitative interferences and intrusions—Stacey Sowards' essay, "Identification Through Orangutans: Destabilizing the Nature/Culture Dualism," explores the potential for our connecting with nonhuman life "from the inside," relating... (shrink)

The hypothesis that there is a 1:1 correspondence between LTP and learning is simplistic, and the correlation approach to testing it is therefore too limited. The alternative hypothesis that LTP plays a role in arousal is consistent with activity-dependent neuromodulation, but ignores the Hebbian properties of LTP. LTP may involve both types of mechanisms, suggesting a possible synthesis of the two hypotheses.

This ground-breaking textbook focuses on the use of play techniques and games to facilitate the positive behavioral, social, and emotional development of children with and without special needs. The chapters in this book center on the use of games and play to facilitate emotional expression, develop friendships and encourage appropriate behaviors in community contexts, such as schools, that are critical to children's adaptation in the world. For example, there are chapters explaining the importance of playground interactions for children, role play (...) to develop social skills and learn to express emotions, games to facilitate appropriate behavior and prosocial development in the classroom, and play as an outlet for the expression of emotion and development of children with special needs, including medical and mental health conditions. Readers will learn skills for coaching positive behaviors in individual and group settings, and will learn strategies to enhance social skills and help children develop emotionally in a variety of contexts (e.g., classrooms) and circumstances (e.g., having chronic illnesses or coping with mental health issues that make social engagement more challenging). Important "take-home" messages and critical techniques for fostering children's skills will be presented, and the engaging material presented in the chapters will facilitate knowledge of what to do and how to improve children's social and emotional development through play techniques and games. -- Back cover. (shrink)

This paper queries why we are more reluctant to perform stem cell research on human than on nonhuman embryos, given their remarkable similarities together with the former's greater promise for addressing human illnesses. I begin by examining two leading arguments for prohibiting stem cell research on human embryos. The first type of argument suggests that we should not interfere with the potential for human life. This argument, advanced in different ways by both utilitarians and religious believers, inadequately grapples with the (...) moral complexities raised by current technologies, such as IVF and cloning. Moreover, it fails to address the significant adverse effects of human overpopulation to both human and nonhuman well-being. The second line of argument addressed here suggests that we are morally prohibited from "playing God." This argument overlooks the various ways in which we do—indeed, we must—make life and death decisions. Further, the argument rests on an undefended assumption that we are only prohibited from making such decisions with regard to human life, while remaining free to make such decisions with regard to animals without apparent moral qualms. On the contrary, I argue that, from a fully ethical Darwinian standpoint, we must treat both human and nonhuman life with respect. Far from requiring us to abstain from difficult moral decision making, an attitude of respect toward all life requires human willingness to take responsibility for making difficult—indeed, sometimes excruciating—moral decisions. (shrink)

: There has been a marked expansion in our human knowledge in recent decades, and much of this new information about ourselves and our world has yet to be integrated into our human self-image. I maintain that understanding how we fit within the spectrum of lifeforms as the primates that we are will enable us to take a more active role in choosing ecologically responsible behavior and will allow us to address more effectively our major problems of overpopulation, overconsumption, and (...) militarism. (shrink)

With increasing appreciation that the Y2K problem may turn out to have unpredictable and potentially far-reaching effects, we are faced with what in some ways resembles the looming global ecological crisis, only this time what is at stake are not vital ecosystem services but rather the vital structures of our highly complex socially constructed reality—and this time we have a date-certain deadline for the onset of the crisis. Regardless of what actually happens when the calendar turns from 1999 to 2000, (...) this period of waiting for the millennium bug can be a productive one if it induces some of us to contemplate what things we actually depend upon to sustain our lives and, utilizing John Searle's analysis, in what ways we might reconstruct our social reality if faced with the opportunity—and why we haven't begun to do so sooner. (shrink)

With increasing appreciation that the Y2K problem may turn out to have unpredictable and potentially far-reaching effects, we are faced with what in some ways resembles the looming global ecological crisis, only this time what is at stake are not vital ecosystem services but rather the vital structures of our highly complex socially constructed reality—and this time we have a date-certain deadline for the onset of the crisis. Regardless of what actually happens when the calendar turns from 1999 to 2000, (...) this period of waiting for the millennium bug can be a productive one if it induces some of us to contemplate what things we actually depend upon to sustain our lives and, utilizing John Searle's analysis, in what ways we might reconstruct our social reality if faced with the opportunity—and why we haven't begun to do so sooner. (shrink)