Cooperative responding in rats: II. Performance on fixed-ratio schedules of mutual reinforcement

Coordinated responses of 5 dyads of rats were investigated under fixed-ratio (FR) schedules of mutual water reinforcement. Coordinated responding was defined as 2 consecutive lever-presses, 1 from each of 2 rats, occurring <.5 s apart. In the FR schedules, each coordinated episode was defined as 1 response in the FR sequence. The size of FR schedules was parametrically manipulated assuming the values of FR 1, 6, 12, 18, 24, 30, 50, and 9, in this order. Each FR remained in effect until responding reached stability. Under all conditions, pairs of rats received access to water simultaneously (mutual reinforcement). Rates and proportions of coordinated responding showed a bitonic inverted U-shaped function of ratio size. Postreinforcement pauses increased systematically as the interreinforcement interval increased. Local rates and proportions increased as a function of response location within ratios. Results of a control condition with relaxed temporal constraints for mutual reinforcement showed decreases in rates and proportion of coordinated responses, suggesting that the coordinated responses were controlled by the mutual reinforcement contingencies. The present experiment showed that coordinated responding is quantitatively affected by 3 properties of FR schedules: response requirement, reinforcement rates, and proximity to reinforcement.     

The utility of the Psychopathy Checklist-Revised (PCL-R) facet and item scores in predicting violent recidivism

There is relatively limited research on psychopathy in non-Caucasian ethnic groups and even less on the utility of the Psychopathy Checklist-Revised (PCL-R) that focuses on PCL-R facet and item scores in predicting violent recidivism. In this study, we assessed the utility of the PCL-R in prospectively predicting violent versus nonviolent recidivism during an 11-year follow-up window. A high-risk sample of 451 incarcerated Korean male offenders was assessed on the PCL-R at baseline. A total of 445 were reconvicted after release (353 violent and 92 nonviolent recidivists). Psychopathy facet scores were higher in violent compared to nonviolent recidivists. Facet 2 (affective) showed the strongest effect size (Cohen's d = 0.53; Percentage change in odds = 22.6%) in predicting violent recidivism. Analyses of the four items constituting the affective facet indicated that callous/lack of empathy (Percentage change in odds = 134.4%) and failure to accept responsibility (Percentage change in odds = 94.5%) were the strongest predictors of violent recidivism. Findings are to our knowledge the first to document the utility of the PCL-R in distinguishing violent from nonviolent recidivism and highlight the role of affective impairment (particularly lack of empathy) in violent recidivism.     

Justice,Virtue, and Power in Democratic Conflict

The question of how to respond to the deep political divides in the United States today has resulted in the emergence of two camps. On one side are those who argue that the cultivation of civic virtues like civility will lead to more respectful interpersonal relationships through which consensus and mutual understanding can be built. On the other are those who argue that our commitment to justice is primary and may require uncivil behavior to disrupt and change unjust structural relationships. In Healthy Conflict in Contemporary American Society, Jason Springs helps to bridge the divide between these two positions. Because he takes a relational approach that centers both interpersonal and structural relationships, Springs makes both mutual respect and just structures central to his conception of healthy conflict. Taking relationality seriously thus helps to overcome this impasse, but it also raises significant questions about the impact of asymmetrical relationships on citizens’ responsibilities to engage in healthy conflict.     

Dismissing-avoidant pattern of attachment and mimicry reactions at different levels of information processing

Individuals with a dismissing-avoidant pattern of attachment are assumed to repress anxiety-related signals, a disposition hypothesized to interfere with facial mimicry and emotional contagion. Further, they are assumed to have one internal working model associated with anxiety, operating out of awareness at early, automatic stages of information processing, and another positive model operating at later, cognitively controlled stages of processing. The main aim of the present investigation was to compare facial mimicry in dismissing-avoidant and non-dismissing subjects at different levels of information processing. Pictures of happy and angry faces were exposed to 61 subjects at three different exposure times (17, 56, and 2,350 ms) in order to elicit facial muscle reactions, first at automatic levels and then at a more controlled levels. Corrugator activity ("frowning muscles") represented negative emotions and zygomaticus activity ("smiling muscles") positive emotions. The dismissing-avoidant subjects scored significantly lower on emotional empathy than the non-dismissing subjects. At the automatic level the dismissing-avoidant subjects showed "normal" corrugator responses (negative emotions) upon exposure to angry faces. At the cognitively controlled level of processing (2,350 ms) a significant interaction effect was shown between Faces x Muscles x Attachment pattern. The dismissing-avoidant subjects showed no corrugator response and an increased zygomaticus response ("smiling reaction") to the angry face, whereas the non-dismissing subjects reacted with a significant mimicking reaction. The dismissing-avoidant subjects' tendency to "smiling" in response to the angry face at the controlled level (2,350 ms) may be interpreted as a repression of their earlier, automatically evoked (56 ms) negative emotional reaction.     

The Moral Contours of Empathy

Morally contoured empathy is a form of reasonable partiality essential to the healthy care of dependents. It is critical as an epistemic aid in determining proper moral responsiveness; it is also, within certain richly normative roles and relationships, itself a crucial constitutive mode of moral connection. Yet the achievement of empathy is no easy feat. Patterns of incuriosity imperil connection, impeding empathic engagement; inappropriate empathic engagement, on the other hand, can result in self-effacement. Impartial moral principles and constraints offer at best meager protection against these perils, and hence serve poorly in securing morally contoured empathy. More nuanced and practical guidance should be sought in normatively substantive conceptions of our roles and relationships and their defining moral stakes. These, joined with more abstract moral tools, can facilitate rich, narratively textured interpretations of moralitys demands. While the content of our normative conceptions must be continually debated, engaging in this debate is vital to the achievement of proper empathy, and thus to effective, respectful, morally healthy care of dependents.This paper was originally presented at the conference on Reasonable Partiality at the Vrije Universiteit, Amsterdam, October 22–24, 2003. I wish to thank all those present for stimulating discussion. Special thanks go to Bert Musschenga, who organized the conference, and who has provided insightful feedback on this paper. Warm thanks as well to Brenda Almond and Bernie Rollin for lively exchanges on the issues addressed here and to Nancy Sherman for sharing with me an ongoing fascination with, and her own fantastic work on, empathy. Comments from an anonymous reviewer for the journal were challenging and helpful. Finally, I wish to express gratitude beyond normal bounds to Maggie Little both for her generosity, keen insight, and artful intervention at key points in this essays evolution and for her ground-breaking work on deontic pluralism that deeply influences the position I frame here.     

The roots of empathy and aggression in analysis

Empathy and interpretation have complementary roles in analysis. Empathy diminishes psychological arousal, ego-defences, and promotes the therapeutic relationship. Interpretation, when adopted in the service of character analysis and the uncovering of unconscious conflict, represents one element of a larger set of interventions termed analytic aggression, whose primary goal is to promote insight. Psychoanalysis has been increasingly influenced by derivative theories that promote the therapeutic relationship. Clinical observations suggest that the application of analytic aggression has diminished and that many modern treatments may have become overly skewed towards empathic approaches. This paper explores ethical humanism, Jamesian typology, and feminine psychology, as factors that have contributed to the diminished emphasis on analytic aggression in practice. Eastern myth and Buddhist psychology are used to explicate the core features of narcissistic mental structuring and to support the continued importance of analytic aggression in its treatment. Case material is examined to elucidate the benefits and limits of analytic aggression.     

The effect of test schedules on the formation of linked perceptual classes

After training conditional discriminations among selected stimuli from two perceptual classes, the emergence of novel relations involving other members of both classes was assessed using cross-class probes. The cross-class probes were presented using one of four different testing schedules. In the 2/9 test, nine different probes were presented in each of two test blocks. In the 6/3 test, three different probes were presented in each of six test blocks. In the 18/1-RND test, each of the 18 cross-class probes was presented in separate test blocks. In the 2/9 and 6/3 tests, the cross-class probes were presented in a randomized order within test block. In the 18/1-RND test, the cross-class probes were presented in a randomized sequence. In the 18/1-PRGM test, however, the cross-class probes were presented in a programmed order (i.e., the values of the stimuli in each cross-class probe were changed systematically in the succession of probe presentations). About 55% of the linked perceptual classes emerged during the 2/9, 6/3, and 18/1-RND tests. Thus the number of different probes in a test block did not influence the emergence of classes as long as the probes were presented in a random order. Virtually all classes emerged during the 18/1-PRGM test. Thus at least one ordered introduction of different cross probes resulted in the reliable emergence of linked perceptual classes. Mechanisms responsible for linked perceptual class formation are discussed along with the relation of these classes to other complex categories.     

Irrationality and egoism in Hegel’s account of right

ABSTRACT

Many interpreters argue that irrational acts of exchange can count as rational and civic-minded for Hegel – even though, admittedly, the persons who are exchanging their property are usually unaware of this fact. While I do not want to deny that property exchange can count as rational in terms of ‘mutual recognition’ as interpreters claim, this proposition raises an important question: What about the irrationality and arbitrariness that individuals as property owners and persons consciously enjoy? Are they mere vestiges of nature in Hegel’s system, or do they constitute a simple yet valid form of freedom that is not only a part of Hegel’s rational system of right, but its necessary starting point? I will argue the latter: The arbitrary, purely egoist self-definition of property owners is the simplest possible type of freedom for Hegel, which he dissects in order to show how the very arbitrary self-definition implicitly relies on an identity between persons, and hence foreshadows the more social forms of freedom Hegel will discuss later in his book. I make this argument by highlighting Hegel’s references to his discussion of atoms and freedom in his Logic of Being.