Neuroscience & Biobehavioral Reviews
November 19, 2025
Daniel K. Freeman, Brian Odegaard, Seung-Schik Yoo et al.
Identifying what aspects of brain activity are responsible for conscious perception remains one of the most challenging problems in science. While progress has been made through psychophysical studies employing EEG and fMRI, research would greatly benefit from improved methods for stimulating the brain in healthy human subjects. Traditional techniques for neural stimulation through the skull,...
Clinical Psychology Review
December 17, 2022
Bryony Sheaves, Stephanie Rek, Daniel K. Freeman
Nightmares occur across a wide range of psychiatric disorders, but outside of PTSD presentations are infrequently considered a treatment priority. We aimed to assess evidence for a contributory causal role of nightmares to the occurrence of psychiatric disorders, and vice versa. A systematic review was conducted of longitudinal, experimental, and clinical trial studies. Twenty-four...
PLoS One
February 24, 2021
Emma Černis, Esther Beierl, Andrew Molodynski et al.
Background: Dissociative experiences occur across a range of mental health disorders. However, the term 'dissociation' has long been argued to lack conceptual clarity and may describe several distinct phenomena. We therefore aimed to conceptualise and empirically establish a discrete subset of dissociative experiences and develop a corresponding assessment measure. Methods: First, a systematic...
Scientific Reports
May 24, 2020
Poppy Brown, Felicity Waite, Aitor Rovira et al.
Abstract Paranoia may build on negative beliefs held both about the self and others. Compassionate imagery may be one way of reducing such negative beliefs, and hence paranoia. Two studies tested this idea, one targeting compassion for the self and one targeting compassion for others. Two-hundred individuals from the general population scoring highly for paranoia were recruited. The studies...
PLoS One
February 19, 2020
Emma Černis, Daniel K. Freeman, Anke Ehlers
Background Despite its long history, dissociation remains under-recognised clinically, partly due to difficulties identifying dissociative symptoms. Qualitative research may support its recognition by providing a lived experience perspective. In non-affective psychosis, identification of dissociation may be particularly important given that such experiences have been implicated its development...
Social Psychiatry and Psychiatric Epidemiology
July 15, 2017
Stephanie Rek, Bryony Sheaves, Daniel K. Freeman
54 citations
Nightmares are inherently distressing, prevent restorative sleep, and are associated with a number of psychiatric problems, but have rarely been the subject of empirical study. Negative affect, linked to stressful events, is generally considered the key trigger of nightmares; hence nightmares have most often been considered in the context of post-traumatic stress disorder (PTSD). However, many...