Developmental pathways from preschool temper tantrums to later psychopathology

Joint developmental trajectories of internalizing and externalizing problems from mid-childhood to late adolescence and childhood risk factors: Findings from a prospective pre-birth cohort

There is limited evidence on heterogenous co-developmental trajectories of internalizing (INT) and externalizing (EXT) problems from childhood to adolescence and predictors of these joint trajectories. We utilized longitudinal data from Raine Study participants (n = 2393) to identify these joint trajectories from 5 to 17 years using parallel-process latent class growth analysis and analyze childhood individual and family risk factors predicting these joint trajectories using multinomial logistic regression. Five trajectory classes were identified: Low-problems (Low-INT/Low-EXT, 29%), Moderate Externalizing (Moderate-EXT/Low-INT, 26.5%), Primary Internalizing (Moderate High-INT/Low-EXT, 17.5%), Co-occurring (High-INT/High-EXT, 17%), High Co-occurring (Very High-EXT/High-INT, 10%). Children classified in Co-occurring and High Co-occurring trajectories (27% of the sample) exhibited clinically meaningful co-occurring problem behaviors and experienced more adverse childhood risk-factors than other three trajectories. Compared with Low-problems: parental marital problems, low family income, and absent father predicted Co-occurring and High Co-occurring trajectories; maternal mental health problems commonly predicted Primary Internalizing, Co-occurring, and High Co-occurring trajectories; male sex and parental tobacco-smoking uniquely predicted High Co-occurring membership; other substance smoking uniquely predicted Co-occurring membership; speech difficulty uniquely predicted Primary Internalizing membership; child's temper-tantrums predicted all four trajectories, with increased odds ratios for High Co-occurring (OR = 8.95) and Co-occurring (OR = 6.07). Finding two co-occurring trajectories emphasizes the importance of early childhood interventions addressing comorbidity.

Associations of Child Amygdala Development with Borderline Personality Symptoms in Adolescence

BACKGROUND

The understanding of the neural correlates of borderline personality disorder (BPD) is limited, but suggests alterations in limbic structures play a role in adult BPD. The developmental course of structural neural differences in BPD is unknown. Whether there is specificity for structural alterations in BPD compared with other psychiatric presentations, such as major depressive disorder (MDD), remains unexplored. The current study examined childhood trajectories of two limbic regions implicated in BPD, hippocampal and amygdala volume, as they relate to adolescent BPD symptoms as compared with MDD symptoms.

METHODS

Participants (N =175; 85 [48.6%] female) were from a 17-year longitudinal study of preschool depression. Participants completed up to 5 MRI scans from late childhood through adolescence. General linear models assessed the relationship between gray matter volume intercepts/slopes and BPD symptoms to understand the influence of the developmental trajectory of brain regions on BPD. Separate models assessed the relationship between MDD symptoms and volume intercepts to assess diagnostic specificity.

RESULTS

Lower childhood amygdala volume (intercept; age 13 centered) across scans was associated with higher adolescent BPD symptoms (β=-0.25, adj. p=.015). There was no relationship between the slope of amygdala volume and BPD symptoms. There was no relationship between hippocampal volume and BPD, nor any relationship between amygdala or hippocampal volume and MDD symptoms in adolescence.

CONCLUSIONS

Our findings add evidence for the role of alterations in amygdala structure in BPD development. Decreased amygdala volume as early as age 13 may be an early indicator for the development of BPD in adolescence.

Optimizing parenting and child outcomes following parent-child interaction therapy - toddler: a randomized controlled trial

BACKGROUND

Parent-Child Interaction Therapy-Toddler (PCIT-T) is an attachment-informed intervention model designed to meet the specific developmental needs of toddlers aged 12-24 months presenting with challenging behaviors.

METHODS

This study used a randomized controlled design to evaluate outcomes of PCIT-T for children aged 14-24 months with disruptive behaviors. Ninety toddlers with parent-reported disruptive behavior were randomly allocated to PCIT-T (intervention), an active control condition (Circle of Security- Parenting™; COS-P), or a non-treatment control condition (wait-list; WL). Outcomes were assessed at baseline (Time 1), post treatment/post waitlist (Time 2) and 4-month follow-up (Time 3).

RESULTS

At follow-up, the PCIT-T group displayed the highest levels of parenting sensitivity and positive parental verbalizations, and the lowest levels of negative child-directed verbalizations and non-attuned mind-minded statements. Of the three groups, the PCIT-T group showed the greatest degree of change on these variables, followed by the COS-P group and then the non-treated controls. The PCIT-T group were also the only group to show significant within-group improvements in sensitivity, self-reported parental reflectiveness, empathy and emotional understanding, parent-reported child social competence, child internalizing problems, and general behavior issues. Significant reductions in parental stress, child externalizing behaviors and parenting behaviors were seen for both the PCIT-T and COS-P groups.

CONCLUSIONS

Delivered in the early intervention period of toddlerhood, Parent-Child Interaction Therapy-Toddler has the potential to bring about significant changes for children presenting with early onset behavioral issues.

TRIAL REGISTRATION

Australian New Zealand Clinical Trials Registry (ANZCTR), 12,618,001,554,257. Registered 24 September 2018 - retrospectively registered, https://anzctr.org.au/Trial/Registration/TrialReview.aspx?ACTRN=12618001554257 .

The role of torso stiffness and prediction in the biomechanics of anxiety: a narrative review

Although anxiety is a common psychological condition, its symptoms are related to a cardiopulmonary strain which can cause palpitation, dyspnea, dizziness, and syncope. Severe anxiety can be disabling and lead to cardiac events such as those seen in Takotsubo cardiomyopathy. Since torso stiffness is a stress response to unpredictable situations or unexpected outcomes, studying the biomechanics behind it may provide a better understanding of the pathophysiology of anxiety on circulation, especially on venous impedance. Any degree of torso stiffness related to anxiety would limit venous return, which in turn drops cardiac output because the heart can pump only what it receives. Various methods and habits used to relieve stress seem to reduce torso stiffness. Humans are large obligatory bipedal upright primates and thus need to use the torso carefully for smooth upright activities with an accurate prediction. The upright nature of human activity itself seems to contribute to anxiety due to the needed torso stiffness using the very unstable spine. Proper planning of actions with an accurate prediction of outcomes of self and non-self would be critical to achieving motor control and ventilation in bipedal activities. Many conditions linked to prediction errors are likely to cause various degrees of torso stiffness due to incomplete learning and unsatisfactory execution of actions, which will ultimately contribute to anxiety. Modifying environmental factors to improve predictability seems to be an important step in treating anxiety. The benefit of playful aerobic activity and proper breathing on anxiety may be from the modulation of torso stiffness and enhancement of central circulation resulting in prevention of the negative effect on the cardiopulmonary system.