Publications by authors named "Colleen Lacey"

Digital health technologies (DHTs) have become progressively more integrated into the healthcare of people with multiple sclerosis (MS). To ensure that DHTs meet end-users' needs, it is essential to assess their usability. The objective of this study was to determine how DHTs targeting people with MS incorporate usability characteristics into their design and/or evaluation.

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Background: The Apolipoprotein E (APOE) gene has been established in the Alzheimer's disease (AD) literature to impact brain structure and function and may also show congruent effects in healthy older adults, although findings in this population are much less consistent. The current study aimed to replicate and expand the multimodal approach employed by Honea et al. Structural magnetic resonance imaging (MRI), diffusion tensor imaging (DTI), and neuropsychological measures were used to investigate the impact of APOE-ε status on grey matter structure, white matter integrity, and cognitive functioning.

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Objective: Exercise interventions have emerged as a promising approach for managing symptoms associated with multiple sclerosis (MS). However, changes in brain function underlying exercise-related improvements in symptoms of MS have not been fully investigated, and in no instances have they been investigated using a graph theory approach. For the first time, the effects of an exercise intervention on functional brain network connectivity were examined using graph theory analyses of resting-state functional MRI (fMRI) data among individuals with relapsing-remitting MS (RRMS).

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Introduction: Depressive symptoms are experienced by up to 50% of individuals diagnosed with Multiple Sclerosis (MS). Furthermore, depressive symptoms are sometimes experienced differently for females and males in the general population, but it is unclear if this is true for people with Relapsing-Remitting MS (RRMS). The current study aimed to investigate whether there are differences between females and males with RRMS in overall depression scores as well as the types of depressive symptoms reported (somatic or cognitive).

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Clarifying the neuropathology of depression as a symptom of Parkinson's disease (PD) has been the goal of recent neuroimaging studies; however, results have been conflicting and lack replication. The purpose of the current study was to replicate recent methods that have used diffusion tensor imaging (DTI) to compare individuals with PD with and without depression and to extend previous findings to allow for a better understanding of the results. Thirty-seven participants with PD were retrieved from the Parkinson's Progression Marker's Initiative (PPMI) and were separated into a depressed PD group (dPD) or a non-depressed PD group (ndPD).

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This study explored the impact of a child's position on the level of fear and perception of pain during an immunization injection. One hundred seven children, ages 4-6, participated in a random-assignment, two-group design study to evaluate the effect of positioning on fear and perceived pain. Group 1 was placed in the supine position and Group 2 in the sitting position prior to immunizations.

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