Sad and happy emotion discrimination in music by children with cochlear implants

Children using cochlear implants (CIs) develop speech perception but have difficulty perceiving complex acoustic signals. Mode and tempo are the two components used to recognize emotion in music. Based on CI limitations, we hypothesized children using CIs would have impaired perception of mode cues relative to their normal hearing peers and would rely more heavily on tempo cues to distinguish happy from sad music. Study participants were children with 13 right CIs and 3 left CIs (M = 12.7, SD = 2.6 years) and 16 normal hearing peers. Participants judged 96 brief piano excerpts from the classical genre as happy or sad in a forced-choice task. Music was randomly presented with alterations of transposed mode, tempo, or both. When music was presented in original form, children using CIs discriminated between happy and sad music with accuracy well above chance levels (87.5%) but significantly below those with normal hearing (98%). The CI group primarily used tempo cues, whereas normal hearing children relied more on mode cues. Transposing both mode and tempo cues in the same musical excerpt obliterated cues to emotion for both groups. Children using CIs showed significantly slower response times across all conditions. Children using CIs use tempo cues to discriminate happy versus sad music reflecting a very different hearing strategy than their normal hearing peers. Slower reaction times by children using CIs indicate that they found the task more difficult and support the possibility that they require different strategies to process emotion in music than normal.     

The Role of BIS Sensitivity in the Relationship Between Family Enmeshment and Child Anxiety

Previous work has demonstrated that three overarching vulnerabilities–genetic, environmental, and temperamental–contribute to the development of child anxiety. The purpose of our study was to assess: (a) the relationship between an environmental vulnerability, family enmeshment, and child anxiety; (b) whether parental anxiety accounts for this relationship; and (c) whether this relationship is mediated by levels of child Behavioral Inhibition System sensitivity, a highly persistent temperamental variable demonstrating positive associations with child anxiety. Our study included 38 Canadian parent–child dyads from an urban area, of which 33 children were Caucasian and 18 were girls. Children were aged 9 or 11 years (M = 10.21, SD = 1.07). Children completed measures of anxiety and sensitivity towards threat and parents completed measures of family enmeshment. The results supported a significant positive relationship between family enmeshment and child anxiety; parental anxiety did not account for this relationship; and the relationship was partially mediated by Behavioral Inhibition System sensitivity. Specifically, when the effect of Behavioral Inhibition System sensitivity was controlled for, the association between family enmeshment and child anxiety became non-significant. The results suggest that family enmeshment is associated with levels of child anxiety largely through the function of children’s sensitivity to threat. Enmeshed families may increase children’s susceptibility to anxiety through their effect on child temperament, specifically sensitivity to threat.     

Tapping into the Potential of Academic Diaspora for Homeland Development: the Case of Nigeria

Academic Diaspora populations are an important resource that can be harnessed by home governments for national growth and development. Nigeria’s academic Diasporas provide an opportunity for Nigeria’s tertiary institutions to connect to the global knowledge community and for the government to utilize their skills and resources toward national innovation and growth. This paper examines the contributions of Nigeria’s academic Diaspora populations by analyzing their various modes of engagement in Nigeria’s development. The paper uses a review of relevant literature and responses from a questionnaire survey of 45 Nigerian international academics. Using the theoretical lens of the Diaspora Option Theory, the paper observes that the academic Diaspora has made significant contributions to Nigeria’s development but that the benefits of these contributions can be enhanced through proper government engagement and coordination.     

When feeling bad leads to feeling good: guilt-proneness and affective organizational commitment

The authors posit that higher levels of guilt-proneness are associated with higher levels of affective organizational commitment. To explain this counterintuitive link, the authors suggest that a dispositional tendency to feel guilt motivates individuals to exert greater effort on their work-related tasks that, in turn, strengthens their affinity for the organization. The authors tested this idea using a laboratory study and field data from 2 samples of working adults. Individuals who are more guilt-prone reported higher levels of organizational attachment compared with less guilt-prone individuals. Furthermore, mediation analyses indicate that the link between guilt-proneness and affective commitment is driven by greater task effort. The authors discuss the implications of these findings for understanding the affective drivers of commitment in organizations.     

Beliefs about surgery: Development and validation of an instrument to assess cognitive representations about surgery,in the context of a chronic illness

Objectives: Within a trial of medical and surgical treatments for gastro-esophageal reflux disease (GORD), involving randomised arms and preference arms, we tested the applicability of the Beliefs about Medicines Questionnaire (BMQ) and developed and tested the validity of a new Beliefs about Surgery Questionnaire (BSQ). Methods: Patients with GORD (N = 43) were interviewed to elicit their beliefs about medical and surgical treatments. These contributed to the development of BSQ items. The BMQ and BSQ were completed by trial participants at baseline (randomised trial: N = 325; preference trial: N = 414). Factor analysis and discriminant function analysis were used to assess validity. Results: Principal components analysis (PCA) largely replicated the four-factor BMQ structure. PCA of the combined BMQ/BSQ yielded six factors explaining 54.5% variance. BSQ items loaded onto distinct factors, demonstrating divergence from BMQ. As predicted, BMQ/BSQ scores enabled correct classification of 78.5% of participants to medication and surgery groups in the preference trial (χ²(6) = 205.9, p < 0.001) but only 54.5% (no better than chance) in the randomised trial (χ²(6) = 9.4, p = 0.154). Conclusions: The BSQ is a valid measure of perceptions about surgical treatments for GORD. With the BMQ, it provides information that may guide patients’ choices about treatment. This measure may be applicable to other conditions.     

Specific language deficiencies in children with early onset hydrocephalus

Specific language abilities of children with early onset hydrocephalus were compared to nonhydrocephalic comparison groups. Ninety children, aged 5 to 7 years, composed six subject groups: three groups having a history of hydrocephalus due to spina bifida, prematurity-intraventricular hemorrhage, or aqueductal stenosis. and three comparison groups of children with spina bifida who had never been shunted, premature children with no hydrocephalus, and normal controls. Group performance scores were compared on measures of phonological awareness, semantics, fluency, and word retrieval. Children with hydrocephalus performed below their peers on all measures. These results indicate that early onset hydrocephalus has a substantial adverse impact on the development of a wide range of specific language abilities.     

Conceptual and non-conceptual repetition priming in category exemplar generation: Evidence from bilinguals

One measure of conceptual implicit memory is repetition priming in the generation of exemplars from a semantic category, but does such priming transfer across languages? That is, do the overlapping conceptual representations for translation equivalents provide a sufficient basis for such priming? In Experiment 1 (N=96) participants carried out a deep encoding task, and priming between languages was statistically reliable, but attenuated, relative to within-language priming. Experiment 2 (N=96) replicated the findings of Experiment 1 and assessed the contributions of conceptual and non-conceptual processes using a levels-of-processing manipulation. Words that underwent shallow encoding exhibited within-language, but not between-language, priming. Priming in shallow conditions cannot therefore be explained by incidental activation of the concept. Instead, part of the within-language priming effect, even under deep-encoding conditions, is due to increased availability of language-specific lemmas or phonological word forms.