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Claire O'Callaghan

3 papers in the library · 143 citations · publishing 2022-2026

Papers

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Feasibility of Internet-Based Mind-Body Training for Adults With Subjective Cognitive Decline: Protocol for a Randomized Controlled Trial

JMIR Research Protocols April 20, 2026 Ruchika S Prakash, Madhura Phansikar, Megan E Fisher et al.

Abstract BackgroundIn the United States, the prevalence of Alzheimer disease (AD) is projected to double over the next 30 years, with associated familial and societal costs estimated at US $1 trillion annually if current trends continue. Although pharmacological treatments of AD are showing promise, the adoption of healthy lifestyle behaviors, particularly during the preclinical phase of AD,...

Understanding visual hallucinations: A new synthesis.

Neuroscience and Biobehavioral Reviews July 1, 2023 Daniel Collerton, James Barnes, Nico J Diederich et al. 80 citations

Despite decades of research, we do not definitively know how people sometimes see things that are not there. Eight models of complex visual hallucinations have been published since 2000, including Deafferentation, Reality Monitoring, Perception and Attention Deficit, Activation, Input, and Modulation, Hodological, Attentional Networks, Active Inference, and Thalamocortical Dysrhythmia Default...

Understanding the effects of serotonin in the brain through its role in the gastrointestinal tract.

Brain : a journal of neurology September 14, 2022 James M Shine, Claire O'Callaghan, Ishan C Walpola et al. 63 citations

The neuromodulatory arousal system imbues the nervous system with the flexibility and robustness required to facilitate adaptive behaviour. While there are well understood mechanisms linking dopamine, noradrenaline and acetylcholine to distinct behavioural states, similar conclusions have not been as readily available for serotonin. Fascinatingly, despite clear links between serotonergic...