Psychology

Criterion validity of the general factor of psychopathology in a prospective study of girls
The best-fitting model of the structure of common psychopathology often includes a general factor on which all dimensions of psychopathology load. Such a general factor would be important if it reflects etiologies and mechanisms shared by all dimensions of psychopathology. Nonetheless, a viable alternative explanation is that the general factor is partly or wholly a result of common method vari...


The relationship between self-Image and social anxiety in adolescence
Self-image is the subjective perception about one's own self, body, mental functioning, social attitudes, and adjustment in different aspects of life. Research has linked negative self-image with a number of problem behaviors and psychiatric symptoms in adolescence; however, studies of the relationship between self-image and anxiety disorders are still scarce. MethodThis study involved a commun...
Cognitive benefits of last night's sleep: daily variations in children's sleep behavior are related to working memory fluctuations
Recent studies have suggested substantial fluctuations of cognitive performance in adults both across and within days, but very little is known about such fluctuations in children. Children's sleep behavior might have an important influence on their daily cognitive resources, but so far this has not been investigated in terms of naturally occurring within-person variations in children's everyda...


Hypospadias and increased risk for neurodevelopmental disorders
Hypospadias (aberrant opening of the urethra on the underside of the penis) occurs in 1 per 300 newborn boys. It has been previously unknown whether this common malformation is associated with increased psychiatric morbidity later in life. Studies of individuals with hypospadias also provide an opportunity to examine whether difference in androgen signaling is related to neurodevelopmental diso...
The Self-Ambivalence Measure: A psychometric investigation
The purpose of this study was to assess the psychometric properties of the Self-Ambivalence Measure and its subscales developed by Bhar and Kyrios. The factor structure, reliability, and validity of the measure were examined utilising a non-clinical sample of 415 participants who completed self-report measures of aspects of the self. indicated that the Self-Ambivalence Measure exhibited levels ...


Perfectionism and its relationship with anticipatory processing in social anxiety
Cognitive-behavioural models suggest that perfectionistic beliefs and anticipatory processing are key maintaining factors of social anxiety. The present study examined the moderating and mediating role that anticipatory processing has on the relationship between perfectionism and social anxiety. The sample consisted of 245 individuals from the general community who completed an online questionn...
Examining Disproportionality in School Discipline for Aboriginal Students in Schools Implementing PBIS
The purpose of this exploratory study was to investigate the extent to which students with Aboriginal status receive disproportionate rates of office discipline referrals (ODRs) and more severe administrative consequences relative to students without Aboriginal status. The participants were 1,750 students in five rural British Columbia and Alberta elementary and middle schools implementing Posi...

Implementing School-Wide Positive Behavioural Interventions and Supports to Better Meet the Needs of Indigenous Students
This article examines the need for and importance of culturally responsive behaviour support for Indigenous students. Many of the educational challenges currently faced by Indigenous students can be explained by cultural disconnect and a mismatch between school expectations and cultural values. Principles of Indigenous approaches to behaviour support are described and compared with school-wide ...
ERP adaptation provides direct evidence for early mirror neuron activation in the inferior parietal lobule
Mirror neuron systems are frequently investigated by assessing overlapping brain activity during observation and execution of actions; however, distinct neuronal subpopulations may be activated that fall below the spatial resolution of magnetic resonance techniques. This shortfall can be resolved using repetition suppression paradigms that identify physiological adaptation processes caused by r...

Stimulus-to-matching-stimulus interval influences N1, P2, and P3b in an equiprobable Go/NoGo task
Previous research has shown that as the stimulus-to-matching-stimulus interval (including the target-to-target interval, I, and nontarget-to-nontarget interval, NNI) increases, the amplitude of the P300 ERP component increases systematically. Here, we extended previous P300 research and explored I and NNI effects on the various ERP components elicited in an auditory equiprobable Go/NoGo task. W...
Preferred EEG brain states at stimulus onset in a fixed interstimulus interval equiprobable auditory Go/NoGo task: A definitive study
This study examined the occurrence of preferred EEG phase states at stimulus onset in an equiprobable auditory Go/NoGo task with a fixed interstimulus interval, and their effects on the resultant event-related potentials (ERPs). We used a sliding short-time FFT decomposition of the EEG at Cz for each trial to assess prestimulus EEG activity in the delta, theta, alpha and beta bands. We determin...

The auditory N1 amplitude for task-irrelevant probes reflects visual interest
The present study examined the relationship between the amplitude of N1 component of event-related potentials (ERPs) elicited by task-irrelevant auditory probes and the observer’s level of interest in co-occurring visual stimuli. Participants watched short animated video clips (about 400s) played either forward (interesting) or backward (boring) accompanied by task-irrelevant sequence of audi...
Viewing relational aggression through multiple lenses: Temperament, personality, and personality pathology
Dispositional trait frameworks offer great potential to elucidate the nature and development of psychopathology, including the construct of relational aggression. The present study sought to explore the dispositional context of relational aggression across three dispositional frameworks: temperament, personality, and personality pathology. Participants comprised a large community sample of yout...
Testing an equifinality model of nonsuicidal self-injury among early adolescent girls
Nonsuicidal self-injury (NSSI) is a common behavior among females that has been shown to confer risk for continued self-injury and suicidal attempts. NSSI can be viewed conceptually as behavior that is pathognomonic with aggression and/or depression. Empirical research on concurrent correlates supports this concept: numerous and diverse factors are shown to be significantly associated with self...
Moderation of maltreatment effects on childhood borderline personality symptoms by gender and oxytocin receptor and FK506 binding protein 5 genes
In this investigation, gene–environment–gender interaction effects in predicting child borderline personality disorder symptomatology among maltreated and nonmaltreated low-income children (N = 1,051) were examined. In the context of a summer research camp, adult-, peer-, and self-report assessments of borderline precursor indicators were obtained, as well as child self-report on th...