Katherine Johnson

Towards understanding neurocognitive mechanisms of parenting: Maternal behaviors and structural brain network organization in late childhood

Sally Richmond, Richard Beare, Katherine A Johnson, Nicholas B Allen, Marc L Seal, Sarah Whittle

Journal article  |  2021  |  Human Brain Mapping

A substantial body of knowledge suggests that exposure to adverse family environments - including violence and neglect - influence..

Exploratory Factor Analysis of Observational Parent-Child Interaction Data

Sally Richmond, Orli Schwartz, Katherine A Johnson, Marc L Seal, Katherine Bray, Camille Deane, Lisa B Sheeber, Nicholas B Allen, Sarah Whittle

Journal article  |  2020  |  Assessment

The majority of studies using observational coding systems for family interaction data derive scales describing family members' be..

Assessing attention orienting in mice: a novel touchscreen adaptation of the Posner-style cueing task

S Li, C May, AJ Hannan, KA Johnson, EL Burrows

Journal article  |  2020  |  Neuropsychopharmacology

Atypical attention orienting has been found to be impaired in many neuropsychological disorders, but the underlying neural mechani..

Longitudinal Trajectories of Sustained Attention Development in Children and Adolescents with ADHD

Phoebe Thomson, Nandita Vijayakumar, Katherine A Johnson, Charles B Malpas, Emma Sciberras, Daryl Efron, Philip Hazell, Timothy J Silk

Journal article  |  2020  |  Journal of Abnormal Child Psychology

The present study characterizes changes in sustained attention ability over ages 9-14, and whether longitudinal trajectories of at..

Head Motion During MRI Predicted by out-of-Scanner Sustained Attention Performance in Attention-Deficit/Hyperactivity Disorder

Phoebe Thomson, Katherine A Johnson, Charles B Malpas, Daryl Efron, Emma Sciberras, Timothy J Silk

Journal article  |  2020  |  Journal of Attention Disorders

Objective: To characterize head movements in children with ADHD using an ex-Gaussian distribution and examine associations with ou..

A child-focused version of the Attention Network Task designed to investigate interactions between the attention networks, including the endogenous orienting network

Katherine A Johnson, Frances C Lewis, Kim M Cornish

Journal article  |  2019  |  Child Neuropsychology

A new variation of the Attention Network Task (ANT) was designed to measure the functioning of and interactions between the alerti..

Structural covariance networks in children and their associations with maternal behaviors

Sally Richmond, Richard Beare, Katherine A Johnson, Nicholas B Allen, Marc L Seal, Sarah Whittle

Journal article  |  2019  |  NeuroImage

There is a substantial body of research documenting the influence of early adverse experience on brain development. In contrast, r..

Integration and Segregation of the Brain Relate to Stability of Performance in Children and Adolescents with Varied Levels of Inattention and Impulsivity

Keitaro Machida, Katherine A Johnson

Journal article  |  2019  |  Brain Connectivity

It is common to find that individuals with attention-deficit/hyperactivity disorder (ADHD) produce more variable responses when pe..

Electrophysiological Correlates of Response Time Variability During a Sustained Attention Task

Keitaro Machida, Michael Murias, Katherine A Johnson

Journal article  |  2019  |  FRONTIERS IN HUMAN NEUROSCIENCE

Measurement of cortisol, dehydroepiandrosterone, and testosterone in the hair of children: Preliminary results and promising indications

Jesse D Smith, Katherine A Johnson, Sarah Whittle, Nicholas B Allen, Julian G Simmons

Journal article  |  2019  |  Developmental Psychobiology

Hormone analysis is a valuable tool for understanding how physiology and behavior interact. Cortisol in hair has recently been exa..