Previous studies have shown that multiple reference frames are available and compete for selection during the use of spatial terms such as “above.” However, the mechanisms that underlie the selection process are poorly understood. In the current paper we present two experiments and a comparison of three computational models of selection to shed further light on the nature of reference frame selection. The three models are drawn from different areas of human cognition, and we assess whether they may be applied (...) to a reference frame selection by examining their ability to account for both existing and new empirical data comprising acceptance rates, response times, and response time distributions. These three models are the competitive shunting model, the leaky competing accumulator model, and a lexical selection model. Model simulations show that only the LCA model satisfactorily accounts for the empirical observations. The key properties of this model that seem to drive its success are its bounded linear activation function, its number and type of processing stages, and its use of decay. Uncovering these critical properties has important implications for our understanding not only of spatial term use, in particular, but also of conflict and selection in human cognition more generally. (shrink)

This contribution presents a corpus of spatial descriptions and describes the development of a human-driven spatial language robot system for their comprehension. The domain of application is an eldercare setting in which an assistive robot is asked to “fetch” an object for an elderly resident based on a natural language spatial description given by the resident. In Part One, we describe a corpus of naturally occurring descriptions elicited from a group of older adults within a virtual 3D home that simulates (...) the eldercare setting. We contrast descriptions elicited when participants offered descriptions to a human versus robot avatar, and under instructions to tell the addressee how to find the target versus where the target is. We summarize the key features of the spatial descriptions, including their dynamic versus static nature and the perspective adopted by the speaker. In Part Two, we discuss critical cognitive and perceptual processing capabilities necessary for the robot to establish a common ground with the human user and perform the “fetch” task. Based on the collected corpus, we focus here on resolving the perspective ambiguity and recognizing furniture items used as landmarks in the descriptions. Taken together, the work presented here offers the key building blocks of a robust system that takes as input natural spatial language descriptions and produces commands that drive the robot to successfully fetch objects within our eldercare scenario. (shrink)

: Although "brain death" and the dead donor rule—i.e., patients must not be killed by organ retrieval—have been clinically and legally accepted in the U.S. as prerequisites to organ removal, there is little data about public attitudes and beliefs concerning these matters. To examine the public attitudes and beliefs about the determination of death and its relationship to organ transplantation, 1351 Ohio residents ≥18 years were randomly selected and surveyed using random digit dialing (RDD) sample frames. The RDD telephone survey (...) was conducted using computer-assisted telephone interviews. The survey instrument was developed from information provided by 12 focus groups and a pilot study of the questionnaire. Three scenarios based on hypothetical patients were presented: "brain dead," in a coma, or in a persistent vegetative state (PVS). Respondents provided personal assessments of whether the patient in each scenario was dead and their willingness to donate that patient's organs in these circumstances. More than 98 percent of respondents had heard of the term "brain death," but only one-third (33.7%) believed that someone who was "brain dead" was legally dead. The majority of respondents (86.2%) identified the "brain-dead" patient in the first scenario as dead, 57.2 percent identified the patient in a coma as dead (Scenario 2), and 34.1 percent identified the patient in a PVS as dead (Scenario 3). Nearly one-third (33.5%) were willing to donate the organs of patients they classified as alive for at least one scenario, in seeming violation of the dead donor rule. Most respondents were not willing to violate the dead donor rule, although a substantial minority was. However, the majority of respondents were unaware, misinformed, or held beliefs that were not congruent with current definitions of "brain death." This study highlights the need for more public dialogue and education about "brain death" and organ donation. (shrink)

Through examination of a case study of Liberian refugee participation in the Truth and Reconciliation Commission of Liberia, this article highlights concerns about the lack of opportunity for refugee participation in peacebuilding generally. The experience of the authors working with refugees in the Buduburam Settlement near Accra, Ghana, demonstrates the overwhelming desire of refugees to participate in the processes that directly impact their lives, as well as the future of their home and host countries. The article concludes with the suggestion (...) that the Liberian Truth and Reconciliation Commission’s work with refugees can serve as a model of how refugee participation can be enhanced in similar processes in the future. (shrink)

Two central assumptions of current models of language acquisition were addressed in this study: (1) knowledge of linguistic structure is "mapped onto" earlier forms of non-linguistic knowledge; and (2) acquiring a language involves a continuous learning sequence from early gestural communication to linguistic expression. The acquisition of the first and second person pronouns ME and YOU was investigated in a longitudinal study of two deaf children of deaf parents learning American Sign Language (ASL) as a first language. Personal pronouns in (...) ASL are formed by pointing directly to the addressee (YOU) or self (I or ME), rather than by arbitrary symbols. Thus, personal pronouns in ASL resemble paralinguistic gestures that commonly accompany speech and are used prelinguistically by both hearing and deaf children beginning around 9 months. This provides a means for investigating the transition from prelinguistic gestural to linguistic expression when both gesture and language reside in the same modality.\nThe results indicate that deaf children acquired knowledge of personal pronouns over a period of time, displaying errors similar to those of hearing children despite the transparency of the pointing gestures. The children initially (ages 10 and 12 months) pointed to persons, objects, and locations. Both children then exhibited a long avoidance period, during which one function of the pointing gesture (pointing to self and others) dropped out completely. During this period their language and cognitive development were otherwise entirely normal, and they continued to use other types of pointing (e.g., to objects). When pointing to self and others returned, it was marked with errors typical of hearing children; one child exhibited consistent pronoun reversal errors, thinking the YOU point referred to herself, while the other child exhibited reversal errors inconsistently. Evidence from experimental tasks conducted with the first child revealed that pronoun errors occurred in comprehension as well. Full control of the ME and YOU pronouns was not achieved until 25-27 months, around the same time when hearing children master these forms. Thus, the study provides evidence for a discontinuity in the child's transition from prelinguistic to linguistic communication. It is argued that aspects of linguistic structure and its acquisition appear to involve distinct, language-specific knowledge. (shrink)

This paper defends a direct reference view of names including empty names. The theory says that empty names literally have no meaning and cannot be used to express truths. Names, including empty names, are associated with accompanying descriptions that are implicated in pragmati‐cally imparted truths when empty names are used. This view is defended against several important objections having to do with differences in names, descriptions associated with the names, and considerations of modality. The view is shown to be superior (...) to an alternative theory treating empty names as the “descriptive names” of Kripke and Evans. (shrink)

This paper defends a direct reference view of names including empty names. The theory says that empty names literally have no meaning and cannot be used to express truths. Names, including empty names, are associated with accompanying descriptions that are implicated in pragmati‐cally imparted truths when empty names are used. This view is defended against several important objections having to do with differences in names, descriptions associated with the names, and considerations of modality. The view is shown to be superior (...) to an alternative theory treating empty names as the “descriptive names” of Kripke and Evans. (shrink)

In the dominant metaphor for organ transplantation, the organ is the ultimate gift, the dying donor's life‐giving bequest, conveyed and made possible by a heroic transplant team. The metaphor encourages donation and enforces recipients’ compliance with post‐transplant treatment. It is also inaccurate and sometimes deeply damaging for the recipient.

The fifth edition of this classic introduction to Christian ethics via the case method approach, utilizing case studies of contemporary ethical issues.

Transplantation experiments have shown that developing metazoan organs carry intrinsic information about their size and shape. Organ and body size are also sensitive to extrinsic cues provided by the environment, such as the availability of nutrients. The genetic and molecular pathways that contribute to animal size and shape are numerous, yet how they cooperate to control growth is mysterious. The recent identification and characterization of several mutations affecting growth in Drosophila melanogaster promises to provide insights. Many of these mutations affect (...) the extrinsic control of animal size; others affect the organ‐intrinsic control of pattern and size. In this review, we summarize the characteristics of some of these mutations and their roles in growth and size control. In addition, we speculate about possible connections between the extrinsic and intrinsic pathways controlling growth and pattern. BioEssays 24:54–64, 2002. © 2002 John Wiley & Sons, Inc. (shrink)

There are both externalist and internalist theories of the phenomenal content of conscious experiences. Externalists like Dretske and Tye treat the phenomenal content of conscious states as representations of external properties. Internalists think that phenomenal conscious states are reducible to electrochemical states of the brain in the style of the type-type identity theory. In this paper, we side with the representationalists and visit a dispute between them over the test case of Swampman. Does Swampman have conscious phenomenal states or not? (...) Dretske and Tye disagree on this issue. We try to settle the dispute in favor of Dretske's theory. (shrink)

The relationship between construal and redundancy has not been previously explored empirically. Russian aspect allows speakers to construe situations as either Perfective or Imperfective, but it is not clear to what extent aspect is determined by context and therefore redundant. We investigate the relationship between redundancy and open construal by surveying 501 native Russian speakers who rated the acceptability of both Perfective and Imperfective verb forms in complete extensive authentic contexts. We find that aspect is largely redundant in 81% of (...) uses, and in 17% of contexts aspect is relatively open to construal. We contend that anchoring in redundant contexts likely facilitates the independence of construal in contexts with less redundancy. However further research is needed to discover what makes contexts redundant since known cues for aspect are absent in the majority of such contexts. Native speakers are fairly consistent in giving the original aspect high ratings, but less consistent in rating the non-original aspect, indicating potential problems in testing the reactions of speakers to non-authentic data. (shrink)

Journal Name: Cognitive Linguistics Issue: Ahead of print.

Medical advances in transplantation techniques have driven an exponential increase in the demand for transplantable organs. Unfortunately, policy efforts to bolster the organ supply have been less than effective, failing to provide a stopgap for ever-increasing numbers of patients who await organ transplantation. The number of registrations on waiting lists exceeded 65,245 in early 1999, a 325% increase over the 20,000 that existed 11 years earlier in 1988. Regrettably, more than 4,000 patients die each year while awaiting transplantation.

I propose that human experience of matter provides the source domain for the metaphor that motivates the grammatical category of aspect in Russian. This model is a version of the universal TIME IS SPACE metaphor, according to which SITUATIONS ARE MATERIAL ENTITIES, and, more specifically, PERFECTIVE IS A DISCRETE SOLID OBJECT versus IMPERFECTIVE IS A FLUID SUBSTANCE. The contrast of discrete solid objects with fluid substances reveals a rich array of over a dozen properties; the isomorphism observed between those properties (...) and the complex uses of aspect in Russian is compelling. This model presents a more finely articulated account of Russian aspect than feature analysis can achieve. Although some of these properties overlap significantly with the count versus mass distinction often associated with aspect, the properties provide more detail and ground the metaphor to concrete experience. Properties of matter can be divided into three groups: inherent properties such as edges, shape, and integrity (which correspond to inherent situation aspect); interactional properties such as juxtaposition, dynamism, and salience (which correspond to discourse phenomena of aspect); and human interactional properties such as graspability and impact (which correspond to pragmatic phenomena of aspect). The interactional and human interactional properties can be used to motivate subjective construal, whereas the inherent properties serve as default motivators. The model will be demonstrated in detail using Russian data, followed by a survey comparing Russian with the other Slavic languages, which will show that deviations consist of either non-implementation of a given property, or the implementation of an inherent (default) property in place of an interactional or human interactional property. This model will be contrasted with a brief discussion of a selection of non-Slavic languages. The specific metaphor in this model does not apply beyond Slavic, but perhaps it will encourage investigation into the source domain of aspect in other languages. There appears to be a correlation between the relatively heavy morphological investment Slavic languages make in nominal individuation and the individuation of situations presented in this metaphorical model. (shrink)

A foundational goal of cognitive linguistics is to explain linguistic phenomena in terms of general cognitive strategies rather than postulating an autonomous language module (Langacker 1987: 12–13). Metonymy is identified among the imaginative capacities of cognition (Langacker 1993: 30, 2009: 46–47). Whereas the majority of scholarship on metonymy has focused on lexical metonymy, this study explores the systematic presence of metonymy in word-formation. I argue that in many cases, the semantic relationships between stems, affixes, and the words they form can (...) be analyzed in terms of metonymy, and that this analysis yields a better, more insightful classification than traditional descriptions of word-formation. I present a metonymic classification of suffixal word-formation in three languages: Russian, Czech, and Norwegian. The system of classification is designed to maximize comparison between lexical and word-formational metonymy. This comparison supports another central claim of cognitive linguistics, namely that grammar (in this case word-formation) and lexicon form a continuum (Langacker 1987: 18–19), since I show that metonymic relationships in the two domains can be described in nearly identical terms. While many metonymic relationships are shared across the lexical and grammatical domains, some are specific to only one domain, and the two domains show different preferences for source and target concepts. Furthermore, I find that the range of metonymic relationships expressed in word-formation is more diverse than what has been found in lexical metonymy. There is remarkable similarity in word-formational metonymy across the three languages, despite their typological differences, though they all show some degree of language-specific behavior as well. Although this study is limited to three Indo-European languages, the goal is to create a classification system that could be implemented (perhaps with modifications) across a wider spectrum of languages. (shrink)

Strategies for Successful Animal Shelters is the first book to assess the relationship between shelter traits, activities and critical outcome variables, such as live release or save rates. This book provides a data-based evaluation of shelter processes and practices with explicit recommendations for improved shelter activities. Using a survey of licensed animal shelters, case studies, and data on state inspections, complaints, and save rates, this book provides an assessment of the activities, processes, and procedures that are most likely to lead (...) to positive outcomes for a variety of animal shelters. The book also contributes to community debate around animal sheltering and provides best practices, methods and means to assess local shelters to ensure the highest level of animal welfare. It is a valuable resource for animal shelter professionals and rescue groups, as well as students in disciplines such as animal science, animal welfare and shelter medicine."--Back cover. (shrink)

Gendered barriers to women’s advancement in STEM disciplines are subtle, often the result of gender practices, gender stereotypes, and gendered occupational cultures. Professional socialization into scientific cultures encourages and rewards gender practices that help to maintain gendered barriers. This article focuses more specifically on how individual women scientists’ gender practices potentially sustain gender barriers. Findings based on interview data from thirty women in academic STEM fields reveal that women draw on gendered expectations and norms within their disciplines to discursively distance (...) themselves from other women they perceive as having deviated from such norms and expectations. The types of distancing in which these respondents engage reflect and support gendered structures, cultures, and practices that ultimately disadvantage women and obscure gender inequality. I conclude by discussing the implications of women scientists’ distancing practices for efforts to change the gendered cultures of STEM disciplines. (shrink)

: This paper reviews current and suggested policies designed to increase organ donation in the United States and indicates the problems inherent to these approaches for increasing organ donation by African Americans. Data from a population-based study assessing attitudes and beliefs about organ donation among white and African-American respondents are presented and discussed. We pose the question of whether it is reasonable to maintain the existing system or whether we should institute a system that uses policies based on the attitudes (...) and beliefs of a minority group that is in greater need than the majority. In light of the discussion, we suggest that the current policies guiding the organ procurement system are not adequate to address existing concerns within the African-American community and that a different set of assumptions may be needed to drive organ procurement policy. (shrink)

We propose the “grammatical profile” as a means of probing the aspectual behavior of verbs. A grammatical profile is the relative frequency distribution of the inflected forms of a word in a corpus. The grammatical profiles of Russian verbs provide data on two crucial issues: a) the overall relationship between perfective and imperfective verbs and b) the identification of verbs that characterize various intersections of aspect, tense and mood (TAM) with lexical classes. There is a long-standing debate over whether Russian (...) aspectual “pairs” are formed only via suffixation (the Isacenko hypothesis) or whether they are formed via both suffixation and prefixation (the traditional view). We test the Isacenko hypothesis using data on the corpus frequency of inflected forms of verbs. We find that the behavior of perfective and imperfective verbs is the same regardless of whether the aspectual relationship is marked by prefixes or suffixes; our finding thus supports the traditional view. Introspective descriptions of Russian aspect have often connected the use of particular inflectional forms with certain uses of aspect; for example, the use of imperative forms with the imperfective aspect to produce expressions that are very polite. Grammatical profiles make it possible to identify verbs that behave as outliers, presenting unusually large proportions of usage in parts of the paradigm. This analysis both gives substance to and extends previous introspective descriptions by identifying the verbs most involved in certain TAM-category interactions. On a methodological level, this study contributes to current discussions on the use of inflected forms vs. lemmas in corpus studies. Newman (Aiming low in linguistics: Low-level generalizations in corpus-based research: National Chiao Tung University, 2008) finds valuable information at the level of the inflectional form, and Gries (forthcoming) argues that inflectional forms do not necessarily provide a better basis for analysis than lemmas. We agree with them that the appropriate level of granularity is determined by both the language and the linguistic phenomenon under analysis. (shrink)