Emotions in cognitive conflicts are not aversive but are task specific

It has been suggested that cognitive conflicts require effortful processing and, therefore, are aversive (Botvinick, 2007). In the present study, we compared conflicts emerging from the inhibition of a predominant response tendency in a go/no-go task with those between incompatible response activations in a Simon task in a within-subjects design, using the same type of stimuli. Whereas no-go trials elicited reduced skin conductance and pupillometric responses, but prolonged corrugator muscle activity, as compared with go trials, incompatible and compatible Simon trials were indistinguishable with respect to these parameters. Furthermore, the conflictsensitive N2 components of the event-related brain potential were similar in amplitude, but showed significantly different scalp distributions, indicating dissociable neural generator systems. The present findings suggest the involvement of different emotional and cognitive processes in both types of cognitive conflicts—none being aversive, however. In addition, the N2 findings call into question claims of common monitoring systems for all kinds of cognitive conflicts.     

Standing out from the crowd: personalization of graduation attire

During 1982 and 1983 college commencement ceremonies, a tally was made of students who displayed personal adornment in addition to their traditional academic garb. Degree conferred, sex of recipient, and year of graduation were related to the frequency and forms (political and nonpolitical) of adornment. Bachelor of Arts candidates were more likely to be adorned than were Bachelor of Science candidates, women were more likely to be adorned than were men, and 1982 graduates were more likely to be adorned than were 1983 graduates. The wearing of antinuclear protest ribbons varied as a function of degree but not as a function of sex, and the wearing of nonpolitical forms of adornment varied as a function of sex but not as a function of degree. Results indicate that personalization of graduation attire follows patterns reported in studies of secular dress and adornment. This correspondence between everyday and ritual clothing expressions suggests that the graduation ceremony may be a useful microcosm for future field studies of adolescents' attitudes and social differentiation.     

The Personality of Vegetables: Botanical Metaphors for Human Characteristics

ABSTRACT A dictionary search indicated that fruit and vegetable metaphors for human characteristics were relatively infrequent When used, they were more likely to describe physical than personality attributes, often with euphemistic overtones, and fruit metaphors reflected more favorable characteristics than did vegetable metaphors These findings were confirmed in a semantic analysis of fruit, vegetable, and animal terms     

The resident researcher: An alternative career model centered on community

Considers the potential benefits and costs of an alternative career model for community researchers, one in which professionals specialize in the community where they live. By virtue of their local familiarity, resident researchers can make more informed judgments about research problems and methods. They can employ longitudinal designs to assess change and be available to assist in interpretation and implementation of research. Potential costs include the possibility of provincialism, unintended researcher effects, ethical dilemmas, the need to cultivate community relations, and role conflicts. Interdisciplinary training programs and research field stations can contribute to the development of the resident researcher role. Researchers in the community can help generate grass roots support for social science research. We acknowledge Louise Shedd Barker's helpful comments and suggestions on an earlier version of this article.     

Consciousness of attention and expectancy as reflected in event-related potentials and reaction times

The effects of conscious expectancies and attention on event-related potentials (ERP) and choice reaction times (RT) and their modulation by stimulus sequence were studied. Subjects retrospectively reported their expectancy of, and attention to, the terminal tones of short series. ERPs and RTs showed the usual sequential effects that were modulated by practice. As ratings were affected by only a few of the stimulus sequence, conscious access to sequence-based expectancy or attention appears to be fragmentary. Increased P300 amplitude with attention indicates conscious access to processing capacity. RTs and P300 latencies suggest stimulus processing time to decrease with sequence-based and consciously accessible expectancy. Differential effects of stimulus sequences and conscious expectancies on P300 amplitude indicate influences of two varieties of expectancy.     

In Defence of Conceptual Integration

According to the ‘integration approach’, interpretations of political concepts should (1) explain that they stand for rights we ought to respect and (2) be both compatible and mutually supporting. I start by clarifying what this means, and proceed to an examination of Ronald Dworkin’s latest argument for value holism. I argue that his argument fails to provide a convincing case for the integration approach. I go on to argue that we nonetheless should accept that interpretations of political concepts should be compatible, because denying it would be inconsistent with (1), and the fact that ‘ought implies can’. I then provide reasons for thinking that we also cannot really satisfy (1) for any particular concept without giving reasons in term of what fall under other concepts—that is, interpreting the concepts as mutually supporting. We thus have reasons to accept both parts of (2). Finally, I defend the integration approach from three important objections: First, that it conflates different values; secondly, that it is inconsistent with ordinary language-usage; and thirdly, that it overlooks important telic values. I conclude that none of these compels us to abandon the integration approach.     

Are event-related potentials to dynamic facial expressions of emotion related to individual differences in the accuracy of processing facial expressions and identity?

Despite a wealth of knowledge about the neural mechanisms behind emotional facial expression processing, little is known about how they relate to individual differences in social cognition abilities. We studied individual differences in the event-related potentials (ERPs) elicited by dynamic facial expressions. First, we assessed the latent structure of the ERPs, reflecting structural face processing in the N170, and the allocation of processing resources and reflexive attention to emotionally salient stimuli, in the early posterior negativity (EPN) and the late positive complex (LPC). Then we estimated brain–behavior relationships between the ERP factors and behavioral indicators of facial identity and emotion-processing abilities. Structural models revealed that the participants who formed faster structural representations of neutral faces (i.e., shorter N170 latencies) performed better at face perception (r = –.51) and memory (r = –.42). The N170 amplitude was not related to individual differences in face cognition or emotion processing. The latent EPN factor correlated with emotion perception (r = .47) and memory (r = .32), and also with face perception abilities (r = .41). Interestingly, the latent factor representing the difference in EPN amplitudes between the two neutral control conditions (chewing and blinking movements) also correlated with emotion perception (r = .51), highlighting the importance of tracking facial changes in the perception of emotional facial expressions. The LPC factor for negative expressions correlated with the memory for emotional facial expressions. The links revealed between the latency and strength of activations of brain systems and individual differences in processing socio-emotional information provide new insights into the brain mechanisms involved in social communication.     

Information transmission for one-dimensional stimuli: The role of strategies

Important evidence about the information flow between perceptual and motor processes has been obtained from the lateralized readiness potential (LRP) recorded in two-choice go/nogo tasks. Here, we investigated the effect of time pressure on information transmission for one-dimensional stimuli (four squares differing in size). In between- and within-subject designs, respectively, Experiments 1 and 2 showed that under time pressure partial information initiates hand decision and response preparation before complete size information is available. These findings appear to be at odds with the asynchronous discrete coding model. Experiment 3 assessed the mechanisms behind these effects by manipulating the relative difficulty of extracting hand- and go/nogo-specific information from the size of the stimuli. Consistent with asynchronous coding, our results suggest that serial-consecutive processes in extracting partial and full size information may occur also for one-dimensional stimuli. Our data are inconclusive as to the question of discreteness or continuity of information transmission. On a more general level, our data support the notion of flexibility in the coding of perceptual dimensions to adapt performance to environmental conditions.