Time course of attentional bias for fear-relevant pictures in spider-fearful individuals

The time course of attentional biases for spider stimuli was assessed in two groups of individuals with high or low levels of spider fear. Pairs of photographs of spiders and cats were presented in a visual probe task with three exposure durations: 200, 500 and 2000 ms. Results indicated greater attentional bias for spider stimuli in high fear, than in low fear, individuals in the 200 ms condition. The attentional bias in the high fear group significantly reduced as stimulus exposure duration increased, with no significant biases found in the longer exposure conditions. Results support the view that high fear is associated with an enhanced initial attentional bias for fear-relevant stimuli, but that this attentional bias is not maintained over time.     

Why aren't identical twins linguistically identical? Genetic, prenatal and postnatal factors

Results of twin studies clearly demonstrate that genetic factors play an important role in the rate of language acquisition and linguistic proficiency attained by normal and impaired children and adults [see Stromswold, K. (2001). The heritability of language: A review and meta-analysis of twin, adoption and linkage studies. Language, 77, 647-723.]. That said, twin-based heritability estimates for language rarely exceed .6 and monozygotic (MZ) twins (who are usually assumed to have identical genetic and environmental endowments) sometimes have very different linguistic profiles. In addition, twins are more likely to suffer linguistic delays and impairments than singletons. Postnatal factors, such as differences in linguistic input twins receive, are usually assumed to be the major reason for these findings. This paper discusses how genetic, epigenetic, and perinatal environmental factors can lower heritability estimates for language, cause MZ twins to be linguistically discordant, and increase the risk of language impairments in twins. We present results from our ongoing Perinatal Environment and Genetic Interaction (PEGI) study that suggest that perinatal environmental factors affect linguistic development more than postnatal factors, and that postnatal factors affect cognitive development more than perinatal factors. Because perinatal factors are overwhelming biological, whereas postnatal factors tend to be psychosocial (e.g., how and how much parents speak to their children), these results support nativist/biological theories of language and language development and call into question empiricist/emergentist theories. These results are also consistent with modularist theories of language. We end by suggesting new methods that can be used to tease apart the effects of prenatal and postnatal environment and to investigate how these factors interact with genetic factors.     

Motor initiation and execution in patients with conversion paralysis

Motor initiation and motor execution in four patients with conversion paralysis were investigated in a non-affected motor modality (speech). In line with the hypothesis of dissociated control in conversion disorder [Cognit. Neuropsychiatry 8 (1) (2001) 21] motor initiation, but not response duration, was expected to be impaired. The motor initiation times (reaction time: RT) and motor execution times (response duration: RD) were compared on four RT-tasks that required the production of a verbal response: a simple choice RT-task, a mental letter rotation task, and an implicit and an explicit mental hand rotation task. Because conversion disorder is expected to primarily involve an impairment in the initiation of movement, we expected the following task characteristics to uniquely affect RT and not RD: type of instruction (implicit versus explicit instructed imagery), angle of rotation, and target arm (affected versus non-affected arm). The results indeed showed the task characteristics to significantly affect the participants' RT and not their RD. It was concluded that conversion paralysis is associated with a specific impairment in the explicit initiation of processes with a spatial and motor component.     

Novel figurative phrases and idioms: phrase characteristics over multiple presentations

In a series of three studies, characteristics of novel figurative phrases were compared with those of established idioms. Studies 1 and 2 found that certain correlations were found to be strong and in one direction for familiar idioms and comparably strong but in the opposite direction for novel figurative phrases, with the correlations for less familiar idioms usually falling partway between these extremes. Study 2 also noted that written or auditory presentation had minimal effects on characteristic ratings. In Study 3 the correlations among characteristics stayed relatively constant for familiar idioms after one, three, or six presentations, but for the novel figurative phrases, after multiple presentations the correlations changed in the direction of the established idioms.     

Tell me where you come from and I know what makes you tick: Managing the consumer personality–satisfaction link in diverse cultures

Marketing programs that evoke high satisfaction and marketing success in one culture often fail in others, but the understanding of those cultural differences is insufficient. The question of how culture is linked to consumer satisfaction is still not answered satisfactorily. One promising paradigm for exploring such questions comes from progress in cross-cultural personality psychology. Thus, we examine the influence of individual-level cultural orientations on personality, and the role of personality and affect in satisfaction formation across cultures. Based on experimental data, we show that a high individualism orientation triggers higher levels of extraversion; a high uncertainty-avoidance orientation triggers higher levels of neuroticism. Based on field data from Japan, Spain, and the United States, we identify equivalent relationships amongst personality-related antecedent processes shaping satisfaction indicating universality across these cultures. The findings demonstrate the usefulness of cross-cultural personality psychology theory and methods for understanding and predicting consumer responses to marketing actions across cultures.     

Suppression of reflexive saccades in younger and older adults: Age comparisons on an antisaccade task

Inhibitory control of prepotent responses has been examined by using the antisaccade task, during which a reflexive saccade toward a peripheral onset must be suppressed before an eye movement in the opposite direction from the onset can be executed. In the present experiments, we sought to determine whether older and younger adults would perform similarly on this task. Older adults had a harder time suppressing their reflexive responses, as measured by an increase in the proportion of saccade direction errors. Despite an age-related decline in saccade direction accuracy, the increase in saccade latency associated with the antisaccade condition was the same for both younger and older adults. These results support the view that the effectiveness of inhibitory control declines with age (Hasher & Zacks, 1988; Hasher, Zacks, & May, 1999).     

The internal environment of knowledge claims: One aspect of the knowledge-society connection

In the sociology of knowledge, the relationship between society and knowledge —or rather what separates them — remains an unsolved problem. A critical analysis of various solutions that we must look for to this problem suggests the plausibility of a passage between social groups, styles of argumentation and objects of knowledge. An empirical model of decision displacements is proposed on the basis of a corpus of texts and of observations derived from concrete analysis of a laboratory situation.     

Response styles to sadness are related to sex and sex-role orientation

Nolen-Hoeksema's (1987) response style theory states that women ruminate on sadness more than men, and that men distract themselves from sadness more than women. These response styles are assumed to develop through the socialization of sex-appropriate behavior. The present study extended this argument by examining the relation of sex-role orientation to response styles in an adult sample. It was hypothesized that greater femininity is associated with more rumination and less distraction in response to sadness, and that greater masculinity is associated with less rumination and more distraction in response to sadness. Male and female undergraduates completed the short form of the BSRI and a coping measure. Consistent with expectations, subjects' sex-role scores were significant predictors of coping responses. Higher femininity was associated with more rumination, whereas higher masculinity was associated with more distraction. As in previous research, sex differences emerged. Female subjects relative to male subjects reported more rumination and less distraction in response to sadness. The sex-role findings are discussed in relation to current conceptualizations of femininity and masculinity measures, and in relation to sex-role differences in depression.     

Struggles over access to the Muslim public sphere: Multiple publics and discourses on agency,belonging and citizenship (Introduction to the Themed Section)

This introductory essay provides the context for the articles in this Themed Section. Despite the diversity in locations, historical backgrounds and contemporary processes of change, all contributors to this Themed Section focus on the struggle of Muslim groups over access to an emergent Muslim public sphere. They highlight the contestations of and shifts in the notions of agency, belonging, and citizenship in nation-states with Muslim communities within its borders. The introduction consists of two parts. The first part reviews the notion of the public sphere as conceptualized by Habermas and critiqued by scholars of a diversity of backgrounds. In relation to the concept of the Muslim public sphere, three aspects of critique are given closer consideration in this first part: the value of thinking in terms of multiple publics, the loss of legitimacy of traditional religious authorities, and the importance of agency and identity that allow individuals to engage in a diversity of publics. The second part introduces the various contributions in the Themed Section.