Some problems for representations of brain organization based on activation in functional imaging

Functional brain imaging has overshadowed traditional lesion studies in becoming the dominant approach to the study of brain-behavior relationships. The proponents of functional imaging studies frequently argue that this approach provides an advantage over lesion studies by observing normal brain activity in vivo without the disruptive effects of brain damage. However, the enthusiastic onslaught of brain images, frequently presented as veridical representations of mental function, has sometimes overwhelmed some basic facts about brain organization repeatedly observed over more than a century. In particular, the lateralization of speech and language to the left cerebral hemisphere in over 90% of the right-handed population does not appear to have been taken as a serious constraint in the interpretation of imaging results in studies of these functions. This paper reviews a number of areas in which standard activation assumptions yield results that are at odds with clinical experience. The activation approach will be contrasted with a performance-based analysis of functional image data, which, at least in the case of speech production, yields results in better agreement with lesion data. Functional imaging represents enormous opportunities for understanding brain-behavior relationships, but at the present level of understanding of what is being represented in such images, it is premature to adhere to a single approach based on the strong but questionable assumptions inherent in most activation studies.     

Ethical considerations for neuropsychologists as functional magnetic imagers

This discussion highlights ethical and practical issues potential neuropsychologist-imagers should consider in conducting functional magnetic resonance imaging (fMRI). While fMRI is not currently approved for clinical use, research is ongoing which has implications for clinical practice, from refining brain-behavior relationships, to assisting with diagnosis and treatment decisions. To protect the welfare of cognitively impaired populations requires special care with respect to MR risks and informed consent. Competent functional imaging requires an understanding of the strengths, limitations, and appropriate domain of applications of the measure.     

Do young boys and girls have distinct and different approaches and needs in relation to spiritual development?

Difficulties are outlined in how to consider whether boys and girls have distinctive approaches and needs in relation to spiritual development, especially the lack of any agreed definition of spiritual development and the nature of the research literature relating to gender. I explore this without presupposing, or excluding, any particular definition, arguing that, whatever one's assumptions and beliefs about spirituality, these influence, and are influenced by, assumptions and beliefs about gender, and vice versa. I present empirical evidence on aspects associated with personal well‐being indicating outcomes strongly differentiated by gender. I examine research evidence in relation to gender within a range of areas commonly associated with spirituality and highlight some gaps. I argue that considering spiritual development through the lens of gender and gender through that of spiritual development can illuminate one's understanding of both concepts. I suggest some possible implications for future research and for teachers of young children.     

Clinical judgment in forensic neuropsychology: A comment on the risks of claiming more than can be delivered

There is a vast and growing literature in psychology demonstrating the general limits of human judgment and clinical inference. These findings clearly apply in the new specialty of clinical neuropsychology, and there is little empirical research to support the widespread belief that judgmental accuracy correlates substantially with experience, professional stature, or reputation as a neuropsychologist. However, the demand characteristics of expert testimony in the forensic arena may encourage individual neuropsychologists to state or intimate that they have unique or special expertise in understanding brain-behavior relationships, or in predicting outcomes following cerebral insult or injury. These claims will be increasingly difficult to substantiate as attorneys become more conversant with the literature on human judgment.     

A strong test of the dual-mode hypothesis

One account of facial cognition, the dual-mode hypothesis, maintains that there are two sources of information in a human face, featural and configural, and that these sources are processed simultaneously and independently of one another. According to the hypothesis, the processing and identification of upright faces relies primarily on configural information, and this information is disrupted to such an extent upon inversion as to result in a reliance on featural information for identifying inverted faces (e.g., Searcy & Bartlett, 1996). When considered in terms of the general characteristics of human information processing, the foundational assumptions of the dual-mode hypothesis are as follows: Facial information processing is accomplished by a parallel self-terminating architecture with unlimited capacity to supercapacity and a preservation of independence between the rates of processing of featural and configural information. Although a number of studies have provided evidence consistent with the dual-mode hypothesis, until now there have been no direct tests of the foundational assumptions of the hypothesis. The present study provides that direct test, providing strong support for three of the assumptions (parallel self-terminating processing with unlimited capacity to supercapacity) while contradicting a fourth (independence in rates).     

Conceptions of identity: the challenge of sexual fluidity to Christian notions of marriage

ABSTRACT

In this paper, I consider the concept of identity as foundational to the heteronormative constructions of marriage manifesting in Christian interpretations of the institution. In an attempt to destabilize what I consider the congealing function of identity, I examine current research on sexuality fluidity emerging from Lisa Diamond’s work. I argue that the evidence of sexual fluidity in women challenges stable identity markers characteristic of marriage conceived of within the male–female binary. Sexual fluidity, thus, ultimately disrupts heteronormative claims of Christian marriage.     

Sunken costs and desired plans: examining different types of investments in close relationships

Although the concept of investments in romantic relationships has featured prominently in close relationships research, there have been no empirical analyses of different types of investments and their possible differential predictive power regarding relationship state or fate. With data from five independent samples, the authors offer and examine investments that differ in terms of their timing (past vs. planned) and materiality (tangible vs. intangible). Cross-sectional and longitudinal tests of hypotheses regarding these investment types provide evidence for the utility of considering specific types of investments in predicting a variety of important relationship factors, including commitment, stability, and the impact of breakup on relationship partners. Intangible investments and planned investments were found to be particularly robust predictors of key relational states and outcomes.     

Personality characteristics that are valued in teams: Not always “more is better”?

This study investigates the relationships between personality traits and contributions to teamwork that are often assumed to be linear. We use a theory‐driven approach to propose that extraversion, agreeableness and conscientiousness have inverted U‐shaped relationships with contributions to teamwork. In a sample of 220 participants asked to perform a creative task in teams, we found that extraversion, agreeableness and conscientiousness were curvilinearly associated with peer‐rated contributions to teamwork in such a way that the associations were positive, with a decreasing slope, up to a peak, and then they became negative as personality scores further increased. We replicated the results concerning the non‐linear association between extraversion, conscientiousness and peer‐rated contributions to teamwork in a sample of 314 participants engaged in a collaborative learning exercise. Our results support recent claims and empirical evidence that explorations of personality–work‐related behaviours relationships should move beyond the linearity assumptions. We conclude by discussing the implications of our research for personnel selection.     

The good, the bad, and the aggregate

To evaluate progress and focus goals, scientific disciplines need to identify relations that are robust across many situations. One approach is the literature review, which characterizes generality across studies. Some writers (e.g., Baron & Derenne, 2000) claim that quantitative literature reviews, but not narrative reviews, violate the methodological precepts of behavior analysis by pooling data from nonidentical studies. We argue that it is impossible to assess generality without varying the context in which relationships are studied. Properly chosen data-aggregation strategies can reveal which behavior-environment relations are general and which are procedure dependent. Within behavior analysis, reluctance to conduct quantitative reviews may reflect unsupported assumptions about the consequences of aggregating data across studies. Whether specific data-aggregation techniques help or harm a research program is an empirical issue that cannot be resolved by unstructured discussion. Some examples of how aggregation has been used in identifying behavior-environment relations are examined.     

Empirical evidence claims are a priori

This paper responds to Achinstein’s criticism of the thesis that the only empirical fact that can affect the truth of an objective evidence claim such as ‘e is evidence for h’ (or ‘e confirms h to degree r’) is the truth of e. It shows that cases involving evidential flaws, which form the basis for Achinstein’s objections to the thesis, can satisfactorily be accounted for by appeal to changes in background information and working assumptions. The paper also argues that the a priori and empirical accounts of evidence are on a par when we consider scientific practice, but that a study of artificial intelligence might serve to differentiate them.     

Theory of mind in nonhuman primates

Since the BBS article in which Premack and Woodruff (1978) asked "Does the chimpanzee have a theory of mind?," it has been repeatedly claimed that there is observational and experimental evidence that apes have mental state concepts, such as "want" and "know." Unlike research on the development of theory of mind in childhood, however, no substantial progress has been made through this work with nonhuman primates. A survey of empirical studies of imitation, self-recognition, social relationships, deception, role-taking, and perspective-taking suggests that in every case where nonhuman primate behavior has been interpreted as a sign of theory of mind, it could instead have occurred by chance or as a product of nonmentalistic processes such as associative learning or inferences based on nonmental categories. Arguments to the effect that, in spite of this, the theory of mind hypothesis should be accepted because it is more parsimonious than alternatives or because it is supported by convergent evidence are not compelling. Such arguments are based on unsupportable assumptions about the role of parsimony in science and either ignore the requirement that convergent evidence proceed from independent assumptions, or fail to show that it supports the theory of mind hypothesis over nonmentalist alternatives. Progress in research on theory of mind requires experimental procedures that can distinguish the theory of mind hypothesis from nonmentalist alternatives. A procedure that may have this potential is proposed. It uses conditional discrimination training and transfer tests to determine whether chimpanzees have the concept "see." Commentators are invited to identify flaws in the procedure and to suggest alternatives.     

Intuitional Disagreement

Some think that recent empirical research has shown that peoples' moral intuitions vary in a way that is hard to reconcile with the supposition that they are even modestly reliable. This is in turn supposed to generate skeptical conclusions regarding the claims and theories advanced by ethicists because of the crucial role intuitions have in the arguments offered in support of those claims. I begin by trying to articulate the most compelling version of this challenge. On that version, the main problem is the absence of a believable positive account of the reliability of the intuitions (rather than the bits of negative evidence that have so far been gathered). I then consider the response to this challenge that, in my view, holds most promise. It differs from others by invoking substantive moral assumptions. Such a strategy may appear problematically circular, in that the justification of those assumptions seems to presuppose the very thesis that is challenged (the thesis that our intuitions deserve being treated as evidence). However, although I think that objection can be met, I argue that there are other problems with the strategy. On the basis of a set of conditions that a successful defense of the pertinent kind plausibly must satisfy, I argue that the prospects of developing such an account are bleak.     

An editorial overview

Now is an excellent time to be doing research at the intersection of psychology and law. In the last few years, both the legal system and the legal academic community have taken more and more interest in the empirical findings of cognitive and social psychologists. Much of this interest has been provoked by the large number of convicted people who have been exonerated by DNA evidence. Examination of their cases reveals that most are associated with one (or more) of the following problems: bad eyewitness testimony, a false confession, or flawed forensic evidence. These issues are ones that psychologists have been investigating for years. For those of you new to this area, we recommend Elizabeth Loftus’s foundational work on so many areas of memory, Gary Wells’s work on eyewitness identification, Saul Kassin’s work on false confessions, and Reid Hastie’s work on jury decision making. All have written for both psychological and legal audiences.     

On the overlap between victimization and offending: A review of the literature

Theoretical and empirical research investigating victimization and offending has largely been either ‘victim-focused’ or ‘offender-focused.’ This approach ignores the potential theoretical and empirical overlap that may exist among victims and offenders, otherwise referred to as ‘victim-offenders.’ This paper provides a comprehensive review of the research that has examined the relationship between victimization and offending. The review identified 37 studies, spanning over five decades (1958-2011), that have assessed the victim-offender overlap. The empirical evidence gleaned from these studies with regard to the victim-offender overlap is robust as 31 studies found considerable support for the overlap and six additional studies found mixed/limited support. The evidence is also remarkably consistent across a diversity of analytical and statistical techniques and across historical, contemporary, cross-cultural, and international assessments of the victim-offender overlap. In addition, this overlap is identifiable among dating/intimate partners and mental health populations. Conclusions and directions for future research are also discussed.     

Situationism and Confucian Virtue Ethics

Situationist research in social psychology focuses on the situational factors that influence behavior. Doris and Harman argue that this research has powerful implications for ethics, and virtue ethics in particular. First, they claim that situationist research presents an empirical challenge to the moral psychology presumed within virtue ethics. Second, they argue that situationist research supports a theoretical challenge to virtue ethics as a foundation for ethical behavior and moral development. I offer a response from moral psychology using an interpretation of Xunzi—a Confucian virtue ethicist from the Classical period. This Confucian account serves as a foil to the situationist critique in that it uncovers many problematic ontological and normative assumptions at work in this debate regarding the prediction and explanation of behavior, psychological posits, moral development, and moral education. Xunzi’s account of virtue ethics not only responds to the situationist empirical challenge by uncovering problematic assumptions about moral psychology, but also demonstrates that it is not a separate empirical hypothesis. Further, Xunzi’s virtue ethic responds to the theoretical challenge by offering a new account of moral development and a ground for ethical norms that fully attends to situational features while upholding robust character traits.     

The neuropsychology of visual image generation: data, method, and theory

This paper presents a review of the empirical evidence bearing on the localization of the image-generation process in cerebral structures and examines several issues related to the study of functional hemispheric asymmetry. In spite of recent claims that the left hemisphere is specialized for the generation of mental visual images, an examination of the relevant data and experimental procedures provides little support for this view and suggests that both hemispheres simultaneously and conjointly contribute to this process. Methodological and theoretical issues related to the localization of functions in the brain, some assumptions guiding laterality research, and computational models of cerebral lateralization are briefly discussed.     

Juvenile curfews: are they an effective and constitutional means of combating juvenile violence?*

Curfew ordinances have become a popular way to attempt to combat juvenile crime and victimization. Although the Supreme Court has yet to hear a curfew case, several constitutional challenges have been brought in lower federal courts. The cases are replete with psychological assumptions for which there is limited empirical evidence. In applying the "strict scrutiny" standard, several courts have also questioned whether juvenile curfews are narrowly tailored to further the State's interest in reducing juvenile crime and victimization. While public opinion and reports from several police jurisdictions support the utility of juvenile curfews, recent empirical studies indicate that curfews are not effective at reducing juvenile offending or victimization. This paper argues that the emerging evidence does not support the use of juvenile curfews and urges policy makers and the courts to examine the efficacy of curfew legislation. Directions for future research that could be helpful to the courts in applying the Bellotti factors to curfew cases are also suggested.     

Examining the Empirical and Linguistic Bases of Current Theories of Agrammatism

This paper, which is organized into five sections, critically examines the empirical support and linguistic assumptions underlying several current accounts of language disturbances in Broca′s aphasia. In the first section, following a discussion of the use of signal detection methodologies in investigating grammatical sensitivity, the reliability of results from two studies that suggest that Broca′s aphasic patients are differentially sensitive to grammatical constraints is examined. It is concluded that in some cases, claims of intact sensitivity are not supported. The second section examines the empirical support for the hypothesis that agrammatic patients are unable to compute syntactic dependency relationships because of slowed lexical processing. It is argued that the statistical treatment of the data and interpretive problems associated with the lexical decision paradigm undermine this hypothesis. In the third section, some of the linguistic assumptions underlying criticisms of chain-disruption hypotheses are examined. It is concluded that these criticisms are based on arguable linguistic assumptions. In the fourth section, it is argued that the linguistic and empirical support for both earlier and revised versions of Grodzinsky′s default interpretive strategy is lacking. Methodological and conceptual shortcomings arising from this proposal are also discussed. In the final section, potential relationships between disordered language and currently developing models of normal language processing are discussed.     

Assumptions and beliefs about the role of AD dolls in child sexual abuse validation interviews: are they supported empirically?

The use of anatomically detailed dolls in child sexual abuse validation interviews is based on a number of underlying assumptions and beliefs. However, only over the last 12 years have researchers begun to evaluate the validity of these assumptions and beliefs systematically. This consideration of the existing AD doll empirical literature reveals that the support for some of the assumptions underlying the use of the dolls, as well as the surrounding beliefs, is available. However, for other assumptions and beliefs support is less firm, frequently contradictory, and sometimes absent. The evidence of support for these assumptions and beliefs is discussed and future research needs are identified.