Is auditory discrimination mature by middle childhood? A study using time‐frequency analysis of mismatch responses from 7 years to adulthood

Behavioural and electrophysiological studies give differing impressions of when auditory discrimination is mature. Ability to discriminate frequency and speech contrasts reaches adult levels only around 12 years of age, yet an electrophysiological index of auditory discrimination, the mismatch negativity (MMN), is reported to be as large in children as in adults. Auditory ERPs were measured in 30 children (7 to 12 years), 23 teenagers (13 to 16 years) and 32 adults (35 to 56 years) in an oddball paradigm with tone or syllable stimuli. For each stimulus type, a standard stimulus (1000 Hz tone or syllable [ba]) occurred on 70% of trials, and one of two deviants (1030 or 1200 Hz tone, or syllables [da] or [bi]) equiprobably on the remaining trials. For the traditional MMN interval of 100–250 ms post-onset, size of mismatch responses increased with age, whereas the opposite trend was seen for an interval from 300 to 550 ms post-onset, corresponding to the late discriminative negativity (LDN). Time-frequency analysis of single trials revealed that the MMN resulted from phase-synchronization of oscillations in the theta (4–7 Hz) range, with greater synchronization in adults than children. Furthermore, the amount of synchronization was significantly correlated with frequency discrimination threshold. These results show that neurophysiological processes underlying auditory discrimination continue to develop through childhood and adolescence. Previous reports of adult-like MMN amplitudes in children may be artefactual results of using peak measurements when comparing groups that differ in variance.     

Brooding Rumination and Risk for Depressive Disorders in Children of Depressed Mothers

The goal of the current study was to examine the role of brooding rumination in children at risk for depression. We found that children of mothers with a history of major depression exhibited higher levels of brooding rumination than did children of mothers with no depression history. Examining potential mechanisms of this risk, we found no evidence for shared genetic influences (BDNF or 5-HTTLPR) or modeling of mothers’ rumination. However, we did find that children with a history of prior depressive disorders exhibited higher current levels of brooding rumination than children with no depression history. Importantly, children’s brooding predicted prospective onsets of new depressive episodes over a 20-month follow-up even when we statistically controlled for depressive symptom levels at the initial assessment, suggesting that the predictive effect of brooding rumination in children was not due simply to co-occurring depressive symptoms.     

Family Impact Analysis of Section?6 (Sexual Transmission) of the Kenya HIV and AIDS Prevention and Control Act No. 14 of 2006

We have analyzed the impact of Section 6 of The Kenya HIV and AIDS Prevention Act on Kenyan families and especially within marriage. In 2006 Kenya passed two bills into law: The Kenya HIV and AIDS Prevention Act and The Sexual Offences Act. The latter addresses sexual offenses including rape, incest and other acts of sexual violence and relates to the Prevention Act in that HIV infection may be transmitted during a sexual offense. Section 6 of the Prevention Act focuses on the sensitive issue of secondary and tertiary transmission of HIV. Although protection is accorded to individuals living with HIV, this section of the law places responsibility on this group to reduce infections among positive individuals as well as the spread of infection between spouses {when only one partner is positive} by criminalizing recklessness leading to HIV infection. By asking questions proposed in the family impact analysis such as, does the law enhance family stability, and commitment or does it acknowledge diverse family forms, interdependence and target vulnerable groups, the framework allows us to examine the impact of Section 6 of the law on families. Under the FIA framework, the ability of The Prevention Act to enhance family functions, promote wellbeing, marital stability, commitment and responsibility is considered while taking into account the contextual realities in Kenya.     

Norine G. Johnson (1935-2011)

On November 19, 2011, Norine G. Johnson, the ninth woman to serve as president of the American Psychological Association (APA), lost a valiant battle with cancer. Norine's curiosity about her grandmother's strength led to much of her later work on the development of strength and resiliency in adolescent girls and in women. She received her doctorate in 1972, with a minor in child development, and she became one of the first to be considered a pediatric psychologist, a newly emerging specialty. Norine became involved in organized psychology as her children got older. When she learned there had not been a woman president of the Massachusetts Psychological Association (MPA) for almost 50 years, she was appalled. An ardent feminist, who had served on MPA's Board of Directors, she could not let the situation remain that way. She ran for president and won, serving from 1981 to 1983, and then mentored many women colleagues into the role. MPA sent her to the Council of the APA as one of their representatives, and she immediately ran for a seat on the Finance Committee, later serving as chair of the committee. During her tenure on the Finance Committee, she helped create financial policy that changed APA from an organization whose assets were threatened and shrinking to a financially solid association. Norine considered Division 35 (Psychology of Women) to be her home in APA, a place filled with warmth, collegiality, and shared values. She and Judith Worell spearheaded the extremely important and successful 1993 National Conference on Education and Training in Feminist Practice. Norine was elected to the APA Board of Directors in 1997, where she served with distinction, continuing to focus on the financial well-being of the Association. Not surprisingly, she went from that role to being elected APA president. Her focus as president was on the changes in the health care delivery system in the United States. She was a staunch champion of the biopsychosocial model of health. Under her presidential leadership, the APA Mission Statement was amended to add the word "health," confirming the importance of health to the psychological community. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

A review of research on bullying and peer victimization in school: An ecological system analysis

Bullying and peer victimization in school are serious concerns for students, parents, teachers, and school officials in the U.S. and around the world. This article reviews risk factors associated with bullying and peer victimization in school within the context of Bronfenbrenner's ecological framework. This review integrates empirical findings on the risk factors associated with bullying and peer victimization within the context of micro- (parent–youth relationships, inter-parental violence, relations with peers, school connectedness, and school environment), meso- (teacher involvement), exo- (exposure to media violence, neighborhood environment), macro- (cultural norms and beliefs, religious affiliation), and chronosystem (changes in family structure) levels. Theories that explain the relationships between the risk factors and bullying behavior are also included. We then discuss the efficacy of the current bullying prevention and intervention programs, which is followed by directions for future research.     

What limits tool use in nonhuman primates? Insights from tufted capuchin monkeys (Sapajus spp.) and chimpanzees (Pan troglodytes) aligning three-dimensional objects to a surface

Perceptuomotor functions that support using hand tools can be examined in other manipulation tasks, such as alignment of objects to surfaces. We examined tufted capuchin monkeys’ and chimpanzees’ performance at aligning objects to surfaces while managing one or two spatial relations to do so. We presented six subjects of each species with a single stick to place into a groove, two sticks of equal length to place into two grooves, or two sticks joined as a T to place into a T-shaped groove. Tufted capuchins and chimpanzees performed equivalently on these tasks, aligning the straight stick to within 22.5° of parallel to the groove in approximately half of their attempts to place it, and taking more attempts to place the T stick than two straight sticks. The findings provide strong evidence that tufted capuchins and chimpanzees do not reliably align even one prominent axial feature of an object to a surface, and that managing two concurrent allocentric spatial relations in an alignment problem is significantly more challenging to them than managing two sequential relations. In contrast, humans from 2 years of age display very different perceptuomotor abilities in a similar task: they align sticks to a groove reliably on each attempt, and they readily manage two allocentric spatial relations concurrently. Limitations in aligning objects and in managing two or more relations at a time significantly constrain how nonhuman primates can use hand tools.     

Effects of posture on tactile localization by 4 years of age are modulated by sight of the hands: evidence for an early acquired external spatial frame of reference for touch

Adults show a deficit in their ability to localize tactile stimuli to their hands when their arms are in the less familiar, crossed posture. It is thought that this ‘crossed‐hands deficit’ arises due to a conflict between the anatomical and external spatial frames of reference within which touches can be encoded. The ability to localize a single tactile stimulus applied to one of the two hands across uncrossed‐hands and crossed‐hands postures was investigated in typically developing children (aged 4 to 6 years). The effect of posture was also compared across conditions in which children did, or did not, have visual information about current hand posture. All children, including the 4‐year‐olds, demonstrated the crossed‐hands deficit when they did not have sight of hand posture, suggesting that touch is located in an external reference frame by this age. In this youngest age group, when visual information about current hand posture was available, tactile localization performance was impaired specifically when the children's hands were uncrossed. We propose that this may be due to an early difficulty with integrating visual representations of the hand within the body schema.     

Processing speed in normal aging: Effects of white matter hyperintensities and hippocampal volume loss

Changes in cognitive functioning are said to be part of normal aging. Quantitative MRI has made it possible to measure structural brain changes during aging which may underlie these decrements which include slowed information processing and memory loss. Much has been written on white matter hyperintensities (WMH), which are associated with cognitive deficits on tasks requiring processing speed and executive functioning, and hippocampal volume loss, which is associated with memory decline. Here we examine volumetric MRI measures of WMH and hippocampal volume loss together in relation to neuropsychological tests considered to be measures of executive functioning and processing speed in 81 non-demented elderly individuals, aged 75–90. Correlational analysis showed that when controlling for age, both greater WMH volume and smaller hippocampal volume were correlated with slower performances on most tests with the exception of a battery of continuous performance tests in which only WMH was correlated with slower reaction time (RT). We then performed a series of hierarchical multiple regression analyses to examine the independent contributions of greater WMH volume and reduced hippocampal volume to executive functioning and processing speed. The results showed that for the four measures requiring executive functioning and speed of processing, WMH volume and hippocampal volume combined predicted between 21.4% and 37% of the explained variance. These results suggest that WM integrity and hippocampal volume influence cognitive decline independently on tasks involving processing speed and executive function independent of age.     

Early adolescents' willingness to intervene: What roles do attributions,affect, coping,and self-reported victimization play?

Limited research has sought to understand early adolescents' willingness to intervene in peer victimization as a function of their own responding to being victimized. The present study examined whether early adolescents' attributions, affect, and coping responses to a victimization vignette were related to their willingness to intervene, and whether self-reported victimization moderated the aforementioned associations. Participants were 653 5th- to 8th-grade students (50.4% girls, 58.5% Caucasian, 34.5% Hispanic) who completed a self-report survey that included a vignette asking students to imagine that they were victimized in school. Hierarchical regression analyses were conducted separately for boys and girls. Although attributions and affect showed no significant associations with students' willingness to intervene, seeking social support coping was associated with greater willingness to intervene for both boys and girls, and problem-focused coping was associated with willingness to intervene for girls only. Unexpectedly, self-reported victimization was associated positively with both boys' and girls' willingness to intervene. Findings also revealed two unexpected two-way interactions between peer victimization and boys' characterological self-blame and girls' wishful thinking coping. Overall, study findings highlight the need for future research and anti-bullying programs to address how victimization could either motivate or discourage a student's willingness to intervene.     

A Study of the Psychometric Properties of the Social Support Scale for Children

The Social Support Scale for Children (SSSC; Harter, 1985a) is one of the most commonly used measures of perceived social support and positive regard from others in children and young adolescents. Research on the validity of the SSSC, however, is limited. The current study examined the test-retest reliability, internal validity intersubscale correlations, and convergent validity of the SSSC. A confirmatory factor analysis was performed using structural equation modeling. The participants included 279 youth between the ages of 6 to 15 from three metropolitan areas in the Midwest. The results supported the reliability and validity of the SSSC. The results supported the four factor solution reported by Harter (1985a). Rewording or removal of two items is suggested.