Parent attributions and attention deficit/hyperactivity disorder knowledge as predictors of specific help-seeking interests.

Many children diagnosed with attention deficit/hyperactivity disorder (ADHD) do not receive appropriate services following diagnosis. Although information about ADHD is widely available and abundant, sometimes conflicting information may impede parent help-seeking. The present study examined parent knowledge of ADHD and attributions of child behavior as predictors of interest in formal and informal help seeking at the point of child evaluation for possible ADHD. Participants (89 caregivers of children ages 5-12) completed a measure of ADHD knowledge, rated attributions of child behavior in response to vignettes depicting ADHD symptoms, and indicated their interest in a range of formal and informal services that could be recommended following the child's evaluation. Parents reported strongest interest in academic services followed by medication, child focused therapy, and informal services (e.g., seeking information about ADHD). Family income, ADHD knowledge and attributions that child behavior will persist over time were associated with all types of help-seeking interest except academic services. Perceptions of child control over behavior predicted greater interest in medication. Findings suggest that increasing parent knowledge of ADHD and exploring parent goals and preferences for treatment may increase service utilization for children following assessment/diagnosis of ADHD.

Differential consequences of habitual responding in a mouse model of repetitive behavior.

Restricted, repetitive behavior (RRB) is diagnostic for autism spectrum disorder (ASD) and characteristic of a number of neurodevelopmental, psychiatric, and neurological disorders. RRB seen in ASD includes repetitive motor behavior and behaviors reflecting resistance to change and insistence on sameness. C58 mice provide a robust model of repetitive motor behavior and have shown resistance to change in a reversal learning task. We further characterized resistance to change in this model by inducing habitual responding and testing for differences in the ability to suppress habitual behavior and shift to goal-directed responding. We found no differences between C58 and control (C57BL/6) mice in the acquisition of operant tasks, habit formation, and expression of habitual responding. Habitual responding, however, induced significant reversal learning and contingency reversal performance deficits in C58 mice compared with C57BL/6 mice. Decreased dendritic spine density of the dorsomedial striatum in C58 mice was related to higher repetitive motor behavior, whereas dendritic spine density in the subthalamic nucleus was significantly positively correlated with improved contingency reversal performance in both C58 and C57BL/6 mice. Our results demonstrate that induction of habitual responding markedly impaired the ability of C58 mice to shift to goal-directed behavior. Such impairment may have resulted from the effects of the induction of habitual responding on already compromised basal ganglia circuitry mediating repetitive motor behavior. These findings provide additional evidence for the translational value of the C58 model in modeling RRB in neurodevelopmental disorders. (PsycINFO Database Record (c) 2020 APA, all rights reserved).