Publications by authors named "R I McDonald"

Background: Adolescents who have been sexually abused commonly experience trauma symptoms, and many spend considerable time waiting for treatment.

Objective: This study examines the extent to which adolescent perceptions of divine spiritual support, divine spiritual struggles, and self-blame collected during a screening assessment predict trauma symptoms at the beginning of treatment.

Participants And Setting: Participants were 224 adolescents (92.

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Article Synopsis
  • The study investigates the role of the hippocampus (HPC) and amygdala in memory formation, particularly focusing on retrograde amnesia that occurs after HPC disruption.
  • Findings reveal that damage to the HPC does not affect conditioned place preference (CPP) tasks, which rely on the basolateral amygdala, suggesting that not all learning tasks require HPC involvement.
  • Additional experiments using the Morris water task indicate that while HPC damage impairs performance, other memory networks can't fully compensate when certain training methods are used, highlighting the complexity of memory processing.
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Background: Various studies have reported on the impact of human papillomavirus (HPV) vaccines. Here we present the largest population-based investigation of genotype-specific distributions over the decade following implementation of the 4-valent HPV vaccine (HPV6/11/16/18) in the United States.

Methods: Liquid-based cervical cytology samples from individuals aged 15-30 years undergoing cervical screening throughout New Mexico were tested by broad-spectrum HPV genotyping.

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Background: Evidence suggests that prehabilitation interventions, which optimise physical and mental health prior to treatment, can improve outcomes for surgical cancer patients and save costs to the health system through faster recovery and fewer complications. However, robust, theory-based evaluations of these programmes are needed. Using a theory of change (ToC) approach can guide evaluation plans by describing how and why a programme is expected to work.

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Evidence from neurophysiological and genetic studies demonstrates that activity sparsity-the proportion of neurons that are active at a given time in a population-systematically varies across the canonical trisynaptic circuit of the hippocampus. Recent work has also shown that sparsity varies across the hippocampal dorsoventral (long) axis, wherein activity is sparser in ventral than dorsal regions. While the hippocampus has a critical role in long-term memory (LTM), whether sparsity across the trisynaptic circuit and hippocampal long axis is task-dependent or invariant remains unknown.

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