In search of the psychopathic sexuality taxon: indicator size does matter

Recent research has suggested that a qualitatively distinct subtype of psychopathic sex offender can be identified via taxometric analyses (Harris et al., 2007). In this study we attempted to replicate the hypothesized psychopathic sexuality taxon in a group of 503 male sexual offenders using data from the Psychopathy Checklist-Revised (PCL-R:Hare, 2003) and five coercive and precocious sexuality items. Ambiguous to dimensional results were obtained when, in a replication of the Harris et al. (2007) study,dichotomized indicators were analyzed with summed input maximum covariance (MAXCOV). Clearly dimensional results, however, were obtained when higher correlating and more valid quasi-continuous indicators were analyzed with traditional (input variables not summed) MAXCOV, and both dichotomous and quasi-continuous indicators were analyzed with mean above minus below a cut (MAMBAC) and latent-mode factor analysis (L-Mode). These results suggest that Harris et al. (2007) may have mistaken the random fluctuations of weakly correlating and poorly differentiating indicators for a taxon. Consistent with the vast majority of earlier research,our results suggest that psychopathy (with or without coercive and precocious sexuality) is a dimensional construct.     

Time,money, and happiness: How does putting a price on time affect our ability to smell the roses?

In this paper, we investigate how the impatience that results from placing a price on time impairs individuals' ability to derive happiness from pleasurable experiences. Experiment 1 demonstrated that thinking about one's income as an hourly wage reduced the happiness that participants derived from leisure time on the internet. Experiment 2 revealed that a similar manipulation decreased participants' state of happiness after listening to a pleasant song and that this effect was fully mediated by the degree of impatience experienced during the music. Finally, Experiment 3 showed that the deleterious effect on happiness caused by impatience was attenuated by offering participants monetary compensation in exchange for time spent listening to music, suggesting that a sensation of unprofitably wasted time underlay the induced impatience. Together these experiments establish that thinking about time in terms of money can influence how people experience pleasurable events by instigating greater impatience during unpaid time.     

The communication of emotion during conflict in married couples

This study investigated emotion during interpersonal conflicts between mates. It addressed questions about how clearly couples express emotion (encoding), how accurately they recognize each other's emotion (decoding), and how well they distinguish between types of negative emotion. It was theorized that couples express and perceive both: (a) event-specific emotions, which are unique to particular people on particular occasions, and (b) contextual-couple emotions, which reflect the additive effect of emotions across different events and across both partners. Eighty-three married couples engaged in a series of two conflict conversations. Self-report ratings, observer ratings, and partner ratings were used to assess two types of negative emotion: hard emotion (e.g., angry or annoyed) and soft emotion (e.g., sad or hurt). Couples were reasonably accurate in encoding, decoding, and in distinguishing between types of emotion. Emotion expression was strongly associated with general levels of contextual-couple emotion summed across two conversations, whereas emotion perception was more closely tied to specific events. Hard emotion was readily perceived when it was overtly expressed, and soft emotion could sometimes be recognized even when it was not expressed clearly.     

Premature termination: A clinical study

Ten patients who terminated prematurely from 10 different therapy groups were interviewed using a semistructured interview protocol. Half the subjects were patients in private therapy groups; the other half were patients in clinic therapy groups. Among the issues inquired about were subjects' initial attitudes about group treatment; the nature of the preparation process; subjects' experience of the group therapist, other group members, and the group process; their reasons for leaving their groups; and the nature of the termination process. The findings reported focus on patients' perceptions of therapists' motives; the importance of establishing appropriate treatment goals; the handling of negative feelings about the group and/or the group therapist; the issue of narcissistic injury; the experience of the balance between giving and receiving; the difficulties caused by unresolved conflicts within groups; and the problems posed by inadequate preparation for the group experience. Guidelines for practices aimed at minimizing premature terminations are offered.     

Moral education: An act-utilitarian view1

In this essay, I distinguish two significant act-utilitarian theories of moral education: the traditional rule of thumb view and the Harian intuition view. I argue that there are problems with the traditional view and that an act-utilitarian ought to adopt a version of the Harian view. I then explain and respond to a major objection to the intuition view given by Bernard Williams. Williams argues that the system of moral thought which the Harian view advocates we teach is inherently unstable and is certain to undermine itself. I argue that there is reason to expect a great deal of stability in this system.I wish to thank Richard Brandt, William Frankena and R.M. Hare for their conversation on this and other topics and for their comments on earlier drafts of this paper. I would also like to thank the Association for the Philosophy of Education and the Northwest Philosophy conference for the opportunity to read and discuss versions of the essay.     

Pitch of infant crying and caregiver responses in a natural setting

The naturally occurring cries of 13 infants in a day-care center were tape-recorded and spectrum-analyzed for the peak fundamental frequency. Caregivers' responses to higher-pitched cries were rated by observers as more urgent, and they more frequently included additional attempts to soothe the infant. These results provide some of the first ecologically valid evidence that the pitch of infant crying is related to the urgency and nature of caregivers' responses.     

Interaction of concurrent generative and expressive activity in production of typewritten lists

Ten touch-typists type lists of abbreviated month names under four directional instructions (Forward, Backward, Centre-out and End-in). The lists were typed on a teletype unit linked to a laboratory computer, and the duration of Start, Inter-word, Inter-letter, carriage Return, and Quit response times (RTs) were recorded throughout production of each list. The major effects of direction of listing were on the Inter-word RTs. However, there were also consistent effects on Inter-letter RT (an index of keyboard skill) and Return RT (an index of list formatting operations). These results are discussed in relation to the notion of a ‘working memory’ of limited capacity.     

Cry analysis detects subclinical effects of prenatal alcohol exposure in newborn infants

The threshold, latency, and peak fundamental frequency (basic pitch) of crying were sensitive to the subclinical effects of prenatal alcohol exposure through the first month of postnatal life. Whereas infants with prenatal alcohol exposure showed a lower cry pitch and higher cry threshold at 2 days of age, higher pitched cries, typical of nervous system insult, were evident at 14 and 28 days. A longer latency was also evident at 14 days.     

Attentional focusing with quantifiers in production and comprehension

There is a very large number of quantifiers in English, so many that it seems impossible that the only information that they convey is about amounts. Building on the earlier work of Moxey and Sanford (1987), we report three experiments showing that positive and negative quantifiers focus on different subsets of the logical possibilities that quantifiers allow semantically. Experiments 1 and 2 feature a continuation task with quantifiers that span a full range of denotations (from near 0% to near 100%) and show that the effect is not restricted to quantifiers denoting small amounts. This enables a distinction to be made between generalization and complement set focus proper. The focus effects extend to comprehension, as shown by a self-paced reading study (Experiment 3). It is noted that the focus effects obtained are compatible with findings from earlier work by Just and Carpenter (1971), which used a verification paradigm, and in fact these effects constitute a direct test of inferences Just and Carpenter made about mechanisms of encoding negative quantifiers. A related but different explanation is put forward to explain the present data. The experiments show a quantifier function beyond the simple denotation of amount.