Language in autism and specific language impairment: where are the links?

It has been suggested that language impairment in autism is behaviorally, neurobiologically, and etiologically related to specific language impairment (SLI). In this article, the authors review evidence at each level and argue that the vast majority of data does not support the view that language impairment in autism can be explained in terms of comorbid SLI. The authors make recommendations for how this debate might be resolved and suggest a shift in research focus. They recommend that researchers concentrate on those aspects of language impairment that predominate in each disorder rather than on those comparatively small areas of potential overlap.     

The paradox of the disrespected: Disrespected group members’ engagement in group-serving efforts

Previous research has demonstrated that intra-group respect can strengthen people’s group identification, and encourage them to exert themselves on behalf of their group. In the present contribution, we focus on the possibility that those who are not respected by other group members (i.e., the disrespected) can also display group beneficial behavior. Experiment 1 (N = 159) confirms this paradoxical premise and reveals that systematically disrespected group members indeed exert themselves on group-serving tasks. These findings were replicated in Experiment 2 (N = 110). Additional indicators in Experiment 2 demonstrate that the effort by systematically disrespected group members cannot be attributed to a desire to improve their acceptance in the group, but should be interpreted as attempts to assert the worth of the self separately from the group. Results are discussed in relation to the group-value model and insights on marginal group membership and social exclusion.     

Internet identification and future internet use.

This paper reports a study investigating the relationship between Internet identification and future Internet use. We predict that Internet identification is stable over time and that it is predictive of future use. The participants were 216 undergraduate students (184 females and 32 males) from five universities in the United Kingdom. They completed a questionnaire concerning their use of the Internet and a measure of Internet identification at the start of the academic year and at the end of the academic year. We found that Internet identification measured at the beginning of the academic year was positively related to Internet identification measured at the end of the academic year. Furthermore, there was a positive relationship between Internet identification and future general Internet use and a positive relationship between Internet identification and future educational Internet use.     

Blood lead (Pb) levels: a potential environmental mechanism explaining the relation between socioeconomic status and cardiovascular reactivity in children.

OBJECTIVE: A number of studies have shown an association between socioeconomic status (SES) and cardiovascular reactivity to acute stress. In addition, the authors recently reported that higher early childhood blood lead (Pb) levels are associated with significantly greater total peripheral (vascular) resistance (TPR) responses to acute stress. It is not known whether the SES-TPR association is mediated by underlying differences in blood lead levels. DESIGN: Participants were 9.5-year-old children (N=122) with established early childhood blood lead levels. MAIN OUTCOME MEASURES: Family SES was measured using the Hollingshead Index, blood lead levels were abstracted from pediatrician and state records, and children's cardiovascular responses to acute stressors were measured in the laboratory with impedance cardiography and an automated blood pressure monitor. RESULTS: Lower family SES was shown to be associated with significantly higher blood lead levels as well as significantly heightened systolic blood pressure, diastolic blood pressure, and TPR responses to acute stress tasks. A mediational analysis confirmed that Pb was a significant mediator of the SES-TPR reactivity association; some evidence also suggested moderation. CONCLUSION: These results suggest the importance of considering the chemical environment as well as social and psychological environment when evaluating cardiovascular effects of low SES.     

Thinking while talking: adults fail nonverbal false-belief reasoning

This experiment tested the ability of 81 adult subjects to make a decision on a simple nonverbal false-belief reasoning task while concurrently either shadowing prerecorded spoken dialogue or tapping along with a rhythmic shadowing track. Our results showed that the verbal task, but not tapping, significantly disrupted false-belief reasoning, suggesting that language plays a key role in working theory of mind in adults, even when the false-belief reasoning is nonverbal.     

Cognitive aspects of nonclinical obsessive-compulsive hoarding

Research on the cognitive variables associated with obsessive-compulsive hoarding is scarce. In this study, we investigated cognitive variables that may contribute to the maintenance and possibly etiology of hoarding. College students who characterized themselves as either "packrats" (nonclinical hoarders; n=21) or not (control participants; n=20) completed questionnaires assessing hoarding behavior and beliefs about hoarding, and completed a task requiring them to categorize diverse objects and trinkets of minimal value into groups. The results revealed that nonclinical hoarders, relative to control participants, rated the categorization task as significantly more stressful and difficult. Relative to control participants, hoarders took longer to complete the task and sorted objects into more categories. These findings suggest that underinclusiveness and indecisiveness, characteristic of clinical hoarders, are evident in nonclinical hoarders as well.     

General and Domain-Specific Self-Esteem Among Regular Education and Special Education Students

We examined the global and domain-specific self-esteem of students who are emotionally disturbed, students who are learning disabled, and students who are in regular education classrooms. Students who were emotionally disturbed or learning disabled had lower global self-esteem than did students in regular education classes. The specific domains in which students in special education felt that they were less competent than students in regular education included social skills, leadership skills, and academics. However, the 2 groups of students in special education did not differ from one another. No differences emerged between the groups on a measure of self-esteem that is less subject to social desirability concerns. Implications of this research for education are discussed.     

Rumination-focused cognitive behaviour therapy for residual depression: a case series

The treatment of chronic and recurrent depression is a priority for the development of new interventions. The maintenance of residual symptoms following acute treatment for depression is a risk factor for both chronic depression and further relapse/recurrence. This open case series provides the first data on a cognitive-behavioural treatment for residual depression that explicitly targets depressive rumination. Rumination has been identified as a key factor in the onset and maintenance of depression, which is found to remain elevated following remission from depression. Fourteen consecutively recruited participants meeting criteria for medication--refractory residual depression [Paykel, E.S., Scott, J., Teasdale, J.D., Johnson, A.L., Garland, A., Moore, R. et al., 1999. Prevention of relapse in residual depression by cognitive therapy--a controlled trial. Archives of General Psychiatry 56, 829-835] were treated individually for up to 12 weekly 60-min sessions. Treatment specifically focused on switching patients from less helpful to more helpful styles of thinking through the use of functional analysis, experiential/imagery exercises and behavioural experiments. Treatment produced significant improvements in depressive symptoms, rumination and co-morbid disorders: 71% responded (50% reduction on Hamilton Depression Rating Scale) and 50% achieved full remission. Treating depressive rumination appears to yield generalised improvement in depression and co-morbidity. This study provides preliminary evidence that rumination-focused CBT may be an efficacious treatment for medication--refractory residual depression.     

The Influence of Affect on Goal Choice and Task Performance

The present study investigated the influence of mood on self-set goals and task performance. Results from 2 studies suggest a restricted view of mood effects in which affective state influences the level of self-set goals or task performance, but not both. Study 2 reveals asymmetrical mood effects on task performance, with positive- and negative-mood participants exceeding the baseline performance of neutral mood participants. Evidence indicates that goal-setting instructions may alter how individuals interpret motivational implications of mood. Although theory implies an inclusive view in which mood has both direct and indirect (through goal-setting) performance effects, the conflicting influences of affect infusion at different points of the goal-striving process may diminish the likelihood of observing inclusive effects.