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Psychology
UK
2026

D-Index & Metrics

Psychology

D-Index
104
Citations
38666
World Ranking
525
National Ranking
72

Research.com Recognitions

  • 2026 - Research.com Psychology in United Kingdom Leader Award

Overview

Daniel Freeman is affiliated with the University of Oxford in the United Kingdom and has contributed extensively to the fields of psychology and medicine. They have a particular focus on psychiatry and mental health, experimental and cognitive psychology, and clinical psychology. Their research also spans philosophy and cognitive neuroscience.

Their work covers various topics including schizophrenia research and treatment, psychosomatic disorders and their treatments, mental health research, mental health and psychiatry, anxiety, depression, psychometrics, treatment, cognitive processes, vaccine coverage and hesitancy, as well as mental health treatment and access.

Freeman's frequent co-authors include Felicity Waite, Bao Sheng Loe, Sinéad Lambe, Laina Rosebrock, and Thomas Kabir, reflecting ongoing collaboration within their research community.

Their publications have appeared predominantly in journals such as Psychological Medicine, PsycTESTS Dataset, Behavioural and Cognitive Psychotherapy, The Lancet Psychiatry, and Scientific Reports.

  • COVID-19 vaccine hesitancy in the UK: the Oxford coronavirus explanations, attitudes, and narratives survey (Oceans) II, 2020, Psychological Medicine
  • Sleep disturbance and psychiatric disorders, 2020, The Lancet Psychiatry
  • Effects of different types of written vaccination information on COVID-19 vaccine hesitancy in the UK (OCEANS-III): a single-blind, parallel-group, randomised controlled trial, 2021, The Lancet Public Health
  • Injection fears and COVID-19 vaccine hesitancy, 2021, Psychological Medicine

Freeman's contributions predominantly address mental health issues, bridging clinical approaches and public health concerns, particularly visible in their work related to vaccine hesitancy and psychiatric disorders.

Best Publications

  • A cognitive model of the positive symptoms of psychosis.

    PA Garety;E Kuipers;DG Fowler;D Freeman

  • Virtual reality in the assessment, understanding, and treatment of mental health disorders.

    D Freeman;S Reeve;A Robinson;A Ehlers

  • Cognitive approaches to delusions: a critical review of theories and evidence.

    Philippa A. Garety;Daniel Freeman

  • A cognitive model of persecutory delusions

    Daniel Freeman;Philippa A. Garety;Elizabeth Kuipers;David Fowler

  • Suspicious minds: The psychology of persecutory delusions

    Daniel Freeman

  • Psychological investigation of the structure of paranoia in a non-clinical population.

    Daniel Freeman;Philippa A. Garety;Paul E. Bebbington;Benjamin Smith

  • COVID-19 Vaccine Hesitancy in the UK: The Oxford Coronavirus Explanations, Attitudes, and Narratives Survey (OCEANS) II.

    Daniel Freeman;Daniel Freeman;Bao S. Loe;Andrew Chadwick;Cristian Vaccari

  • Sleep disturbance and psychiatric disorders.

    Daniel Freeman;Daniel Freeman;Bryony Sheaves;Bryony Sheaves;Felicity Waite;Felicity Waite;Allison G Harvey

  • The effects of improving sleep on mental health (OASIS): a randomised controlled trial with mediation analysis

    Daniel Freeman;Daniel Freeman;Bryony Sheaves;Bryony Sheaves;Guy M Goodwin;Guy M Goodwin;Ly-Mee Yu

  • Connecting neurosis and psychosis: the direct influence of emotion on delusions and hallucinations.

    Daniel Freeman;Philippa A. Garety;Philippa A. Garety

  • The Brief Core Schema Scales (BCSS): psychometric properties and associations with paranoia and grandiosity in non-clinical and psychosis samples

    David Fowler;Daniel Freeman;Ben Smith;Elizabeth Kuipers

  • London-East Anglia randomised controlled trial of cognitive-behavioural therapy for psychosis. I: effects of the treatment phase.

    Elizabeth Kuipers;Philippa Garety;David Fowler;Graham Dunn

  • Reasoning, emotions, and delusional conviction in psychosis.

    Philippa A. Garety;Daniel Freeman;Suzanne Jolley;Graham Dunn

  • Lack of Social Participation or Religious Strength and Comfort as Risk Factors for Death After Cardiac Surgery in the Elderly

    Unknown

  • Social support and depressive symptoms in the elderly.

    Thomas E. Oxman;Lisa F. Berkman;Stanislav Kasl;Daniel H. Freeman

  • Emotion and psychosis: Links between depression, self-esteem, negative schematic beliefs and delusions and hallucinations

    Ben Smith;David G. Fowler;Daniel Freeman;Paul Bebbington

  • Coronavirus conspiracy beliefs, mistrust, and compliance with government guidelines in England.

    Daniel Freeman;Daniel Freeman;Felicity Waite;Felicity Waite;Laina Rosebrock;Laina Rosebrock;Ariane Petit;Ariane Petit

  • Measuring ideas of persecution and social reference: the Green et al. Paranoid Thought Scales (GPTS)

    Cel Green;D Freeman;E Kuipers;PE Bebbington

  • Effect of digital cognitive behavioral therapy for insomnia on health, psychological well-being, and sleep-related quality of life: a randomized clinical trial

    Colin A. Espie;Richard Emsley;Simon D. Kyle;Christopher Gordon

  • Persecutory delusions: developing the understanding of belief maintenance and emotional distress.

    Daniel Freeman;Philippa Garety;Elizabeth Kuipers

  • Implications for neurobiological research of cognitive models of psychosis: a theoretical paper.

    Philippa A. Garety;Paul Bebbington;David Fowler;Daniel Freeman

  • Advances in understanding and treating persecutory delusions: a review

    Daniel Freeman;Philippa Garety

  • Comments on the content of persecutory delusions: Does the definition need clarification?

    Daniel Freeman;Philippa A. Garety

  • The past and future of delusions research: from the inexplicable to the treatable.

    Philippa Garety;Daniel Freeman

Frequent Co-Authors

Philippa Garety
Philippa Garety King's College London
Elizabeth Kuipers
Elizabeth Kuipers King's College London
Helen Startup
Helen Startup Sussex Partnership NHS Foundation Trust
Richard Emsley
Richard Emsley King's College London
Angelica Ronald
Angelica Ronald Birkbeck, University of London
Philip McGuire
Philip McGuire University of Oxford
David Kingdon
David Kingdon University of Southampton
Anke Ehlers
Anke Ehlers University of Oxford
Juliana Onwumere
Juliana Onwumere King's College London
Louise Johns
Louise Johns University of Oxford

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