Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

2020

Freeman, D., Waite, F., Rosebrock, L., Petit, A., Causier, C., East, A., Jenner, L., Teale, A., Carr, L., Mulhall, S., Bold, E., & Lambe, S. (2020). Coronavirus conspiracy beliefs, mistrust, and compliance with government guidelines in England. Psychological Medicine https://doi.org/10.1017/S0033291720001890

Freeman, D., Sheaves, B., Waite, F., Harvey, A., & Harrison, P. (2020). Sleep disturbance and psychiatric disorders: the non-specific as essential in understanding and treating mental ill health. The Lancet Psychiatry.

Brown, P., Waite, F., Rovira, A., Nickless, A., & Freeman, D. (in press). Virtual reality clinical-experimental tests of compassion treatment techniques to reduce paranoia. Scientific Reports.

Lambe, S., Knight, I., Kabir, T., West, J., Patel, R., Lister R., Rosebrock, L., Rovira, A., Garnish, B., Freeman, J., Clark, D., Waite, F., & Freeman, D. (in press). Developing an automated VR cognitive treatment for psychosis: gameChange VR therapy. Journal of Behavioural and Cognitive Therapy.

Bird, J., Loe, B., Kirkham, M., Fergusson, E., Shearn, C., Stratford, H., Teale, A., Waite, F., & Freeman D. (2020). The assessment of paranoia in young people: Item and test properties of the Bird Checklist of Adolescent Paranoia. Schizophrenia Research. 2020 Apr 1. doi: 10.1016/j.schres.2020.03.046.

Černis, E., Freeman, D., & Ehlers, A. (2020). Describing the indescribable: A qualitative study of dissociative experiences in psychosis. PLoS One. 2020 Feb 19;15(2):e0229091.

2019

Waite, F., Sheaves, B., Isham, L., Reeve, S., & Freeman D. (2019). Sleep and schizophrenia: From epiphenomenon to treatable causal target. Schizophrenia Research, doi: 10.1016/j.schres.2019.11.014

Freeman, D., Yu, L-M., Kabir, T., Martin, J., Craven, M., Leal, J., Lambe, S., Brown, S., Morrison, A., Chapman, K., Dudley, R., O’Regan, E., Rovira, A., Goodsell, A., Rosebrock, L., Bergin, A., Cryer, T., Robotham, D., Andleeb, H., Geddes, J., Hollis, C., Clark, D., & Waite, F. (2019). Automated virtual reality (VR) cognitive therapy for patients with psychosis: study protocol for a single-blind parallel group randomised controlled trial (gameChange). BMJ Open, 9:e031606. doi: 10.1136/bmjopen-2019-031606

Freeman, D., Taylor, K., Molodynski, A., & Waite, F. (2019). Treatable clinical intervention targets for patients with schizophrenia. Schizophrenia Research, 211:44-50.

Freeman, D., Morrison, A., Bird, J., Chadwick, E., Bold, E., Taylor, K., Diamond, R., Collett, N., Černis, E., Isham, L., Lister, R., Kirkham, M., Teale, A., Twivy, E., & Waite, F. (2019). The weeks before 100 persecutory delusions: the presence of many potential contributory causal factors. BJPsych Open. 2019 Sep 17;5(5):e83.

Freeman, D., Bold, E., Chadwick, E., Taylor, K., Collett, N., Diamond, R., Černis, E., Bird, J., Isham, L., Forkert, A., Carr, L., Causiera, C., & Waite, F. (2019). Suicidal ideation and behaviour in patients with persecutory delusions: Prevalence, symptom associations, and psychological correlates. Comprehensive Psychiatry, 93, 41-47.

Freeman, D., Bird, J., Loe, B., Kingdon, D., Startup, H., Clark, D., Ehlers, A., Černis, E., Wingham, G., Evans, N., Lister, R., Pugh, K., Cordwell, J., & Dunn, G. (2019). The Dunn Worry Questionnaire and the Paranoia Worries Questionnaire: new assessments of worry. Psychological Medicine. doi: 10.1017/S0033291719000588.

Freeman, D., Loe, B.S., Kingdon, D., Startup, H., Molodynski, A., Rosebrock, L., Brown, P., Sheaves, B., Waite, F., & Bird, J.C. (2019). The revised Green et al., Paranoid Thoughts Scale (R-GPTS): psychometric properties, severity ranges, and clinical cut-offs. Psychological Medicine, Nov 20:1-10. doi: 10.1017/S0033291719003155.

Waite, F., Diamond, R., Collett, N., Chadwick, E., Bold, E., Teale, A.L., Taylor, K.M., Kirkham, M., Twivy, E., Causier, C., Carr, L., Bird, J.C., Černis, E., Isham, L., & Freeman, D. (2019). The comments of voices on the appearance of patients with psychosis: 'the voices tell me that I am ugly'. BJPsych Open, 5, e86. doi: 10.1192/bjo.2019.66.

Martens, M., Antley, A., Freeman, D., Slater, M., Harrison, P., Tunbridge, E. (2019). It feels real: physiological responses to a stressful virtual reality environment and its impact on working memory. Journal of Psychopharmacology, 33, 1264-1273.

Marshall, E., Freeman, D., & Waite, F. (2019). The experience of body image concerns in patients with persecutory delusions: 'People don't want to sit next to me'. Psychology & Psychotherapy, Aug 10. doi: 10.1111/papt.12246.

Isham, L., Griffith, L., Boylan, A.M., Hicks, A., Wilson, N., Byrne, R., Sheaves, B., Bentall, R.P., & Freeman, D. (2019). Understanding, treating, and renaming grandiose delusions: A qualitative study. Psychology & Psychotherapy, Nov 29. doi: 10.1111/papt.12260.

Freeman, D., Lister, R., Waite, F., Yu, L.-M., Slater, M., Dunn, G., & Clark, D. (2019). Automated psychological therapy using virtual reality (VR) for patients with persecutory delusions: study protocol for a single-blind parallel-group randomised controlled trial (THRIVE). Trials, 20: 87.

Kuipers, J., Moffa, G., Kuipers, E., Freeman, D. & Bebbington, P. (2019). Links between psychotic and neurotic symptoms in the general population: An analysis of longitudinal British National Survey data using Directed Acyclic Graphs. Psychological Medicine, 49, 388-395.

Reeve, S., Sheaves, B., & Freeman, D. (2019). Sleep Disorders in Early Psychosis: Incidence, Severity, and Association With Clinical Symptoms. Schizophrenia Bulletin, 45, 287-295.

Brown, P., Waite, F. & Freeman, D. (2019). 'Twisting the lion's tail': Manipulationist tests of causation for psychological mechanisms in the occurrence of delusions and hallucinations. Clinical Psychology Review, 68, 25-37.

Sheaves, B., Holmes, E.A., Rek, S., Taylor, K.M., Nickless, A., Waite, F., Germain, A., Espie, C.A., Harrison, P.J., Foster, R., & Freeman, D. (2019). Cognitive Behavioural Therapy for Nightmares for Patients with Persecutory Delusions (Nites): An Assessor-Blind, Pilot Randomized Controlled Trial. Canadian Journal of Psychiatry, 64, 686-696.

Reeve, S., Nickless, A., Sheaves, B., Hodgekins, J., Stewart, S., Gumley, A., Fowler, D., Morrison, A., & Freeman, D. (2019). Sleep duration and psychotic experiences in patients at risk of psychosis: A secondary analysis of the EDIE-2 trial. Schizophrenia Research, 204, 326-333.

Espie, C., Emsley, R., Kyle, S., Gordon, C., Drake, C., Siriwardena, A., Cape, J., Ong, J., Sheaves, B., Foster, R., Freeman, D., Costa-Font, J., Marsden, A., Luik, A. (2019). Effect of Digital Cognitive Behavioral Therapy for Insomnia on Health, Psychological Well-being, and Sleep-Related Quality of Life: A Randomized Clinical Trial. JAMA Psychiatry, 76, 21-30.

Barkhuizen, W., Taylor, M., Freeman, D., & Ronald, A. (2019). A Twin Study on the Association Between Psychotic Experiences and Tobacco Use During Adolescence. Journal of the American Academy of Child and Adolescent Psychiatry, 58, 267-276.

Pyle, M., Broome, M.R., Joyce, E., MacLennan, G., Norrie, J., Freeman, D., Fowler, D., Haddad, P.M., Shiers, D., Hollis, C., Smith, J., Liew, A., Byrne, R.E., French, P., Peters, S., Hudson, J., Davies, L., Emsley, R., Yung, A., Birchwood, M., Longden, E., & Morrison, A.P. (2019). Study protocol for a randomised controlled trial of CBT vs antipsychotics vs both in 14-18-year-olds: Managing Adolescent first episode Psychosis: a feasibility study (MAPS). Trials, 20:395. doi: 10.1186/s13063-019-3506-1.

Bird, J.C., Evans, R., Waite, F., Loe, B.S., & Freeman, D. (2019). Adolescent Paranoia: Prevalence, Structure, and Causal Mechanisms. Schizophrenia Bulletin, 45, 1134-1142.

2018

Freeman, D., Haselton, P., Freeman, J., Spanlang, B., Kishore, S., Albery, E., Denne, M., Brown, P., Slater, M., & Nickless, A. (2018). Automated psychological therapy using immersive virtual reality for the treatment of the fear of heights: a single-blind parallel-group randomised controlled trial. Lancet Psychiatry, 5, 625-632.

Murphy, P., Bentall, R., Freeman, D., O'Rourke, S., & Hutton, P. (2018). The paranoia as defence model of persecutory delusions: a systematic review and meta-analysis. Lancet Psychiatry, 5, 913-929.

Hardy, A., Wojdecka, A., West, J., Matthews, E., Golby, C., Ward, T., Lopez, N.D., Freeman, D., Waller, H., Kuipers, E., Bebbington, P., Fowler, D., Emsley, R., Dunn, G., Garety, P. (2018). How Inclusive, User-Centered Design Research Can Improve Psychological Therapies for Psychosis: Development of SlowMo. JMIR Mental Health, 5:e11222.

Waite, F., Bradley, J., Chadwick, E., Reeve, S., Bird, J., & Freeman, D. (2018). The Experience of Sleep Problems and Their Treatment in Young People at Ultra-High Risk of Psychosis: A Thematic Analysis. Frontiers in Psychiatry. 2018 Aug 24; 9:375. doi: 10.3389/fpsyt.2018.00375.

Isham, L., Grafahrend, H., Nickless, A., Pugh, K., Pleasants, S., Smedley, N., Freeman, D., & Mulligan A.(2018).  Group-Based Worry Intervention for Persecutory Delusions: an Initial Feasibility Study. Behavioural and Cognitive Psychotherapy, 46, 619-625.

Sheaves, B., Freeman, D., Isham, L., McInerney, J., Nickless, A., Yu, L-M., Rek, S., Bradley, J., Reeve, S., Attard, C., Espie, C.A., Foster, R., Wirz-Justice, A., Chadwick, E., & Barrera A. (2018). Stabilising sleep for patients admitted at acute crisis to a psychiatric hospital (OWLS): an assessor-blind pilot randomised controlled trial. Psychological Medicine, 48, 1694-1704.

Reeve, S., Nickless, A., Sheaves, B., & Freeman, D. (2018). Insomnia, negative affect, and psychotic experiences: Modelling pathways over time in a clinical observational study. Psychiatry Research, 269, 673-680.

Sheaves, B., Isham, L., Bradley, J., Espie, C., Barrera, A., Waite, F., Harvey, A., Attard, C. & Freeman, D. (2018). Adapted CBT to Stabilize Sleep on Psychiatric Wards. Behavioural and Cognitive Psychotherapy. 46, 661-675.

Reeve, S., Emsley, R., Sheaves, B., & Freeman, D. (2018). Disrupting sleep: the effects of sleep loss on psychotic experiences tested in an experimental study with mediation analysis. Schizophrenia Bulletin, 44, 662-671.

Tsiachristas, A., Waite, F., Freeman, D., & Luengo-Fernandez, R. (2018). Cost-effectiveness of cognitive–behavioural therapy for sleep disorder added to usual care in patients with schizophrenia: the BEST study. BJPsych Open, 4, 126-135.

Bradley, J., Freeman, D., Chadwick, E., Harvey, A.G., Mullins, B., Johns, L., Sheaves, B., Lennox, B., Broome, M., & Waite, F. (2018). Treating Sleep Problems in Young People at Ultra-High Risk of Psychosis: A Feasibility Case Series. Behavioural and Cognitive Psychotherapy, 46, 276-291.

Pain, O., Dudbridge, F., Cardno, A.G., Freeman, D., Lu, Y., Lundstrom, S., Lichtenstein, P. & Ronald, A. (2018). Genome‐wide analysis of adolescent psychotic‐like experiences shows genetic overlap with psychiatric disorders. American Journal of Medical Genetics Part B, 177, 416-425.

Vorontsova, N., Garety, P., Freeman, D. (2018). Schematic beliefs and problem solving performance predict depression in people experiencing persecutory delusions. Journal of Psychiatric Research, 100, 5-7.

Hundal, H., Lister, R., Evans, N., Antley, A., Englund, A., Murray, R.M., Freeman, D., & Morrison, P.D. (2018). The effects of cannabidiol on persecutory ideation and anxiety in a high trait paranoid group. Journal of Psychopharmacology, 32, 276-282.

Shakoor, S., McGuire, P., Cardno, A.G., Freeman, D., & Ronald, A. (2018). A twin study exploring the association between childhood emotional and behaviour problems and specific psychotic experiences in a community sample of adolescents. Journal of Child Psychology and Psychiatry, 59, 565-573.

2017

Freeman, D., Sheaves, B., Goodwin, G., Yu, L-M., Nickless, A., Harrison, P., Emsley, R., Luik, A., Foster, R., Wadekar, V., Hinds, C., Gumley, A., Jones, R., Lightman, S., Jones, S., Bentall, R., Kinderman, P., Rowse, G., Brugha, T., Blagrove, M., Gregory, A., Fleming, L., Walklet, E., Glazebrook, Davies, E., Hollis, C., Haddock, G., John, B., Coulson, M., Fowler, D., Pugh, K., Cape, J., Mosely, P., Brown, G., Hughes, C., Obonsawin, M., Coker, S., Watkins, E., Schwannauer, M., MacMahon, K., Siriwaardena, A., Espie, C. (2017). The effects of improving sleep on mental health (OASIS): a randomised controlled trial with mediation analysis. Lancet Psychiatry, 4, 749-758.

Freeman, D., Reeve, S., Robinson, A., Ehlers, A., Clark, D., Spanlang, B. & Slater, M. (2017). Virtual reality in the assessment, understanding, and treatment of mental health disorders. Psychological Medicine, 47, 2393-2400.

Freeman, D. & Waite, F. (2017). Persistent persecutory delusions: the spirit, style and content of targeted treatment. World Psychiatry, 16, 208-209.

Freeman, D. & Bentall, R. (2017). The concomitants of conspiracy concerns. Social Psychiatry and Psychiatric Epidemiology, 52, 595-604.

Waite, F. & Freeman, D. (2017). Body image and paranoia. Psychiatry Research, 258, 136-140

Rek, S., Sheaves, B., & Freeman, D. (2017). Nightmares in the general population: identifying potential causal factors. Social Psychiatry and Psychiatric Epidemiology, 52, 1123-1133.

Bird, J.C., Waite, F., Rowsell, E., Fergusson, E.C., & Freeman D. (2017). Cognitive, affective, and social factors maintaining paranoia in adolescents with mental health problems: A longitudinal study. Psychiatry Research, 257, 34-39.

Garety, P.A., Ward, T., Freeman, D., Fowler, D., Emsley, R., Dunn, G., Kuipers, E., Bebbington, P., Waller, H., Greenwood, K., Rus-Calafell, M., McGourty, A., & Hardy A. (2017). SlowMo, a digital therapy targeting reasoning in paranoia, versus treatment as usual in the treatment of people who fear harm from others: study protocol for a randomised controlled trial. Trials, 18:510.

Moffa, G., Catone, G., Kuipers, J., Kuipers, E., Freeman, D., Marwaha, S., Lennox, B.R., Broome, M.R., & Bebbington, P. (2017). Using Directed Acyclic Graphs in Epidemiological Research in Psychosis: An Analysis of the Role of Bullying in Psychosis. Schizophrenia Bulletin, 43, 1273-1279.

Bebbington, P. & Freeman, D. (2017). Transdiagnostic extension of delusions: Schizophrenia and beyond. Schizophrenia Bulletin, 43, 273-282.

Rehman, A., Waite, F., Sheaves, B., Biello, S., Freeman, D. & Gumley, A. (2017). Clinician perceptions of sleep problems and their treatment in patients with non-affective psychosis. Psychosis, 9, 129-139.

Hosang, G.M., Cardno, A.G., Freeman, D., Ronald, A. (2017). Characterization and structure of hypomania in a British nonclinical adolescent sample. Journal of Affective Disorders, 207, 228-235.

2016

Freeman, D. (2016). Persecutory delusions: a cognitive perspective on understanding and treatment. The Lancet Psychiatry, 3, 685-692.

Freeman, D., Bradley, J., Antley, A., Bourke, E., DeWeever, N., Evans, N., Černis, E., Sheaves, B., Waite, F., Dunn, G., Slater, M., & Clark, D. (2016). Virtual reality in the treatment of persecutory delusions. British Journal of Psychiatry, 209, 62-67.

Freeman, D., Waite, F., Emsley, R., Kingdon, D., Davies, L., Fitzpatrick, R., & Dunn, G. (2016). The efficacy of a new translational treatment for persecutory delusions: study protocol for a randomized controlled trial (the Feeling Safe Study). Trials, 17: 134.

Zavos, H., Eley, T., McGuire, P., Plomin, R., Cardno, A., Freeman, D., & Ronald, A. (2016). Shared etiology of psychotic experiences and depressive symptoms in adolescence. Schizophrenia Bulletin, 42, 1197-1206.

Collett, N., Pugh, K., Waite, F., & Freeman, D. (2016). Negative cognitions about the self in patients with persecutory delusions. Psychiatry Research, 239, 79-84.

Geddes, G., Ehlers, A., & Freeman, D. (2016). Hallucinations in the months after a trauma. Psychiatry Research, 246, 601-605.

Atherton, S., Antley, A., Evans, N., Cernis, E., Lister, R., Dunn, G., Slater, M. & Freeman, D. (2016). Self-confidence and paranoia: an experimental study using an immersive virtual reality social situation. Behavioural and Cognitive Psychotherapy, 44, 56-64.

Freeman, D., Bradley, J., Waite, F., Sheaves, B., DeWeever, N., Bourke, E., McInerney, J., Evans, N., Černis, E., Lister, R., Garety, P. & Dunn, G. (2016). Targeting recovery in persistent persecutory delusions: a proof of principle study of a new translational psychological treatment. Behavioural and Cognitive Psychotherapy, 44, 539-552.

Espie, C.A., Luik, A.I., Cape, J., Drake, C.L., Siriwardena, A.N., Ong, J.C., Gordon, C., Bostock, S., Hames, P., Nisbet, M., Sheaves, B., Foster, R., Freeman, D., Costa-Font, J., Emsley, R., Kyle, S.D. (2016). Digital Cognitive Behavioural Therapy for Insomnia versus sleep hygiene education: the impact of improved sleep on functional health, quality of life and psychological well-being. Study protocol for a randomised controlled trial. Trials, 17: 257.

Xin Li, S., Ping Lam, S., Zhanh, J., Wai Man, Y., Wing Yan Chan, J., Sheung Yan Chan, C., Espie, C., Freeman, D., Mason, O., Wing, Y-K. (2016). Sleep disturbances and suicide risk in an 8 year longitudinal study of schizophrenia-spectrum disorders. Sleep, 39, 1275-1282.

Sheaves, B., Bebbington, P., Goodwin, G., Harrison, P., Espie, C., Foster, R. & Freeman, D. (2016). Insomnia and hallucinations in the general population. Psychiatry Research, 241, 141-146.

Taylor, M, Freeman, D., & Ronald, A. (2016). Dimensional psychotic experiences in adolescence. Psychiatry Research, 241, 35-42.

Hardy, A., Emsley, R., Freeman, D., Bebbington, P., Garety, P., Kuipers, E., Dunn, G., & Fowler, D. (2016). Psychological mechanisms mediating effects between trauma and psychotic symptoms. Schizophrenia Bulletin, 42 S1, s34-43.

Sheaves, B., Porcheret, K., Tsanas, A., Espie, C., Foster, R., Freeman, D., Harrison. P., Wulff, K & Goodwin, G. (2016). Insomnia, nightmares and chronotype as markers of risk for severe mental illness. Sleep, 39, 173-181.

Shakoor, S., Zavos, H., Haworth, C., McGuire, P., Cardno, A., Freeman, D., & Ronald, G. (2016). Association between stressful life events and psychotic experiences in adolescence. British Journal of Psychiatry, 208, 532-538.

Waite, F., Evans, N., Myers, E., Startup, H., Lister, R., Harvey, A. G., & Freeman, D. (2016). The patient experience of sleep problems and their treatment in the context of current delusions and hallucinations. Psychology and Psychotherapy: Theory, Research and Practice, 89, 181-193.

Spain, D., Sin, J. & Freeman, D. (2016). Conceptualising paranoia in ASD. Research in Autism Spectrum Disorders, 25, 97-111.

Catone, G., Marwaha, S., Kuipers, E., Lennox, B., Freeman, D., Bebbington, P. & Broome, M. (2015). Bullying victimization and risk of psychotic phenomena: analyses of British national survey data. Lancet Psychiatry, 2, 618-624.

Startup, H., Pugh, K,, Dunn, G., Cordwell, J., Mander, H., Cernis, E., Wingham, G., Shirvell, K., Kingdon, D. & Freeman, D. (2016). Worry processes in patients with persecutory delusions. British Journal of Clinical Psychology, 55, 387-400.

Waite, F., Myers, E., Harvey, A., Espie, C., Startup, H., Sheaves, B., & Freeman, D. (2016). Treating sleep problems in patients with schizophrenia. Behavioural and Cognitive Psychotherapy, 44, 273-287.

Cernis, E., Dunn, G., Startup, H., Kingdon, D., Wingham, G., Evans, N., Lister, R., Pugh, K., Cordwell, J., Mander, H., & Freeman, D. (2016). The Perseverative Thinking Questionnaire in patients with persecutory delusions. Behavioural and Cognitive Psychotherapy, 44, 472-81.

2015

Freeman, D., Waite, F., Startup, H., Myers, E., Lister, E., McInerney, J., Harvey, A., Geddes, J., Zaiwalla, Z., Luengo-Fernandez, R., Foster, R., Clifton, L, & Yu, L-M. (2015). Efficacy of cognitive behavioural therapy for sleep improvement in patients with persistent delusions and hallucinations (BEST): a prospective, assessor-blind, randomised controlled pilot study. The Lancet Psychiatry, 2, 975-983.

Freeman, D., Dunn, G., Startup, H., Pugh, K., Cordwell, J., Mander, H., Cernis, E., Wingham, G., Shirvell, K., & Kingdon, D. (2015) Effects of cognitive behaviour therapy for worry on persecutory delusions in patients with psychosis (WIT): a parallel, single-blind, randomised controlled trial with a mediation analysis. The Lancet Psychiatry, 2, 305-313.

Freeman, D., Sheaves, B., Goodwin, G., Yu, L-M., Harrison, P., Emsley, R., Bostock, S., Foster, R., Wadekar, V., Hinds, C., & Espie, C. (2015). Effects of cognitive behavioural therapy for insomnia on the mental health of university students. Trials, 16, 236.

Freeman, D., Dunn, G., Murray, R., Evans, N., Lister, R., Antley, A., Slater, M., Godlewska, B., Cornish, R., Williams, J., Di Simplicio, M., Igoumenou, A., Brenneisen, R., Tunbridge, E., Harrison, P., Harmer, C., Cowen, P., Morrison, P. (2015). How cannabis causes paranoia: Using the intravenous administration of ∆9-tetrahydrocannabinol (THC) to identify key cognitive mechanisms leading to paranoia. Schizophrenia Bulletin, 41, 391-399.

Freeman, D., Evans, N., Cernis, E., Lister, R., & Dunn, G. (2015). The effect of paranoia on the judging of harmful events. Cognitive Neuropsychiatry, 20, 122-127.

Sieradzka, D., Power, R., Freeman, D., Cardno, A., Dudbridge, F., & Ronald, A. (2015). Heritability of individual psychotic experiences captured by common genetic variants in a community sample of adolescenets. Behavior Genetics, 45, 493-502.

Tunbridge, E., Dunn, G., Murray, R., Evans, N., Lister, R., Stumpenhorst, K., Harrison, P., Morrison, P., & Freeman, D. (2015). Genetic moderation of the effects of cannabis. Journal Psychopharmacology, 29, 1146-1151.

Waller, H., Emsley, R., Freeman, D., Bebbington, P., Dunn, G., Fowler, D., Hardy, A., Kuipers, E., & Garety, P. (2015). Thinking Well: A randomised controlled feasibility study of a new CBT therapy targeting reasoning biases in people with distressing persecutory delusional beliefs. Journal of Behaviour Therapy and Experimental Psychiatry, 48, 82-89.

Taylor, M., Gregory, A., Freeman, D., & Ronald, A. (2015). Do sleep disturbances and psychotic experiences in adolescence share genetic and environmental influences? Journal of Abnormal Psychology, 124, 674-684.

Valmaggia, L., Day, F., Garety, P., Freeman, D., Antley, A., Slater, M., Swapp, D., Myin-Germeys, I., McGuire, P. (2015). Social defeat predicts paranoid appraisals in people at high risk for psychosis. Schizophrenia Research, 168, 16-2.

Reeve, S., Sheaves, B., & Freeman, D., (2015). The role of sleep dysfunction in the occurrence of delusions and hallucinations. Clinical Psychology Review, 42, 96-115.

Taylor, M., Robinson, E, Happé, F., Bolton, P., Freeman, D., & Ronald, A. (2015). A longitudinal twin study of the association between childhood autistic traits and psychotic experiences in adolescence. Molecular Autism, doi 10.1186/s13229-015-0037-9.

Marwaha, S., Thompson, A., Bebbington, P., Singh, S., Freeman, D., Winsper, C., & Broome, M. (2015). Adult attention deficit hyperactivity symptoms and psychosis: epidemiological evidence from a population survey in England. Psychiatry Research, 229, 49-56.

Freeman, D., Emsley, R., Dunn, G., Fowler, D., Bebbington, P., Kuipers, E., Jolley, S, Waller, H., Hardy, A., & Garety, P. (2015). The stress of the street for patients with persecutory delusions. Schizophrenia Bulletin, 41, 971-979.

Garety, P., Waller, H., Emsley, R., Jolley, S., Kuipers, E., Bebbington, P., Dunn, G., Fowler, D., Hardy, A., & Freeman, D. (2015). Cognitive mechanisms of change in delusions. Schizophrenia Bulletin, 41, 400-410.

Freeman, D., Waller, H., Harpur-Lewis, R., Moore, R., Garety, P., Bebbington, P., Kuipers, E., Emsley, R., Dunn, G., Fowler, D., & Jolley, S. (2015). Urbanicity, persecutory delusions, and clinical intervention. Behavioural and Cognitive Psychotherapy, 43, 42-51.

Fornells-Ambrojo, M., Freeman, D., Slater, M., Swapp, D., Antley, A., & Barker, C. (2015). How do people with persecutory delusions evaluate threat in a controlled social environment? A qualitative study using virtual reality. Behavioural Cognitive Psychotherapy, 43, 89-107.

Shakoor, S., McGuire, P., Cardno, A., Freeman, D., Plomin, R., & Ronald, A. (2015). A shared genetic propensity underlies experiences of bullying victimization in late childhood and self-rated paranoid thinking in adolescence. Schizophrenia Bulletin, 41, 754-763.

Shakoor, S., Zavos, H., McGuire, P., Cardno, A., Freeman, D., & Ronald, A. (2015). Psychotic experiences are linked to cannabis use in adolescents in the community because of common underlying environmental risk factors. Psychiatry Research, 227, 144-151.

Startup, H., Pugh, K., Cordwell, J., Kingdon, D., & Freeman, D. (2015). How do individuals with persecutory delusions bring worry to a close? An interpretative phenomenological analysis. Behavioural and Cognitive Psychotherapy, 43, 465-477.

Savulich, G., Freeman, D., Shergill, S. & Yiend, J. (2015). Interpretation biases in paranoia. Behavior Therapy, 46, 110-124.

Freeman, D., Pugh, K., Dunn, G., Evans, N., Sheaves, B., Waite, F., Cernis, E., Lister, R., & Fowler, D. (2014). An early Phase II randomized controlled trial testing the effect on persecutory delusions of using CBT to reduce negative cognitions about the self. Schizophrenia Research, 160, 186-192.

Falcone, A., Murray, R., Wiffen, B., O’Connor, J., Russo, M., Kolliakou, A., Stilo, S., Taylor, H., Gardner-Sood, P., Paparelli, A., Jichi, F., Di Forti, M., David, A., Freeman, D., & Jolley, S. (2015). Jumping to conclusions, neuropsychological functioning, and delusional beliefs in first episode psychosis. Schizophrenia Bulletin, 41, 411-418.

Falcone, A., Murray, R., O’Connor, J., Hockey, L., Gardner-Sood, P, Di Forti, M., Freeman, D., & Jolley, S. (2015). Jumping to conclusions and the persistence of delusional beliefs in first episode psychosis. Schizophrenia Research, 165, 243-246.

2014

Freeman, D., Startup, H., Dunn, G., Wingham, G., Cernis, E., Evans, N., Lister, R., Pugh, K., Cordwell, J., & Kingdon, D. (2014). Persecutory delusions and psychological well-being. Social Psychiatry and Psychiatric Epidemiology, 49, 1045-1050.

Freeman, D., Evans, N., Lister, R., Antley, A., Dunn, G., & Slater, M. (2014). Height, social comparison, and paranoia: an immersive virtual reality experimental study. Psychiatry Research, 30, 348-352.

Freeman, D. & Garety, P. (2014). Advances in understanding and treating persecutory delusions. Social Psychiatry and Psychiatric Epidemiology, 49, 1179-1189.

Freeman, D., Startup, H., Dunn, G., Cernis, E., Wingham, G., Pugh, K., Cordwell, J., Mander, H., & Kingdon, D. (2014). Understanding jumping to conclusions in patients with persecutory delusions: working memory and intolerance of uncertainty. Psychological Medicine, 44, 3017-3024.

Freeman, D., Lister, R., & Evans, N. (2014). The use of intuitive and analytic reasoning styles by patients with persecutory delusions. Journal of Behavior Therapy and Experimental Psychiatry, 45, 454-458.

Freeman, D. & Freeman, J. (2014). The Stressed Sex? The Psychologist, 27, 84-87.

Zavos, H.M.S., Freeman, D., Haworth, C.M.A., McGuire, P., Plomin, R., Cardno, A.G., Ronald, A. (2014). Consistent etiology of severe, frequent psychotic experiences and milder, less frequent manifestations: A twin study of specific psychotic experiences in adolescence. JAMA Psychiatry, 71, 1049-1057.

Wong, K., Freeman, D., & Hughes, C. (2014). Suspicious young minds: A study of two and a half thousand 8-14 year olds in the UK and Hong Kong. British Journal of Psychiatry, 205, 221-229.

Sieradzka, D., Power, R.A., Freeman, D., Cardno, A.D., McGuire, P., Plomin, R, Meaburn, E. L., Dudbridge, F., & Ronald A. (2014). Are genetic risk factors for psychosis also associated with dimension-specific psychotic experiences in adolescence? PlosOne. DOI: 10.1371/journal.pone.0094398

Finnegan, D., Onwumere, J., Green, C., Freeman, D., Garety, P. & Kuipers, E. (2014). Negative communication in psychosis. Journal of Nervous and Mental Disease, 202, 829-832.

Ronald, A., Sieradzka, D., Cardno, A., Haworth, C., McGuire, P. & Freeman, D. (2014). Characterization of psychotic experiences in adolescence using the Specific Psychotic Experiences Questionnaire (SPEQ): Findings from a study of 5000 16 year old twins. Schizophrenia Bulletin, 40, 868-877.

Marwaha, S., Broome, M., Bebbington, P., Kuipers, E., & Freeman, D. (2014). Mood instability and psychosis. Schizophrenia Bulletin, 40, 269-277.

Bell, V. & Freeman, D. (2014). A pilot trial of cognitive behavioural therapy for interpersonal sensitivity in individuals with persecutory delusions. Journal of Behavior Therapy and Experimental Psychiatry, 45, 441-446.

Jolley, S., Thompson, C., Hurley, J., Medin, E., Butler, L, Bebbington, P., Dunn, G., Freeman, D., Fowler, D., Kuipers, E., & Garety, P. (2014). Jumping to the wrong conclusions? An investigation of the mechanisms of reasoning errors in delusions. Psychiatry Research, 219, 275-282.

Jolley, S., Ferner, H., Bebbington, P., Garety, P., Dunn, G., Freeman, D., Fowler, D., & Kuipers, E. (2014). Delusional belief flexibility and informal caregiving relationships in psychosis. Epidemiology and Psychiatric Sciences, 23, 389-397.

Marcus, E., Garety, P., Weinman, J., Emsley, R., Dunn, G., Bebbington, P., Freeman, D. Kuipers, E., Fowler, D., Hardy, A., Waller, H., & Jolley, S. (2014). A pilot validation of a modified Illness Perceptions Questionnaire designed to predict responses to cognitive therapy for psychosis. Journal of Behaviour Therapy and Experimental Psychiatry, 45, 459-466.

Onwumere, J., Grice, S., Garety, P., Bebbington, P., Dunn, G., Freeman, D., Fowler, D., Kuipers, E. (2014). Caregiver reports of patient-initiated violence in psychosis. Canadian Journal of Psychiatry, 59, 376-384.

Černis, E., Dunn, G., Startup, H., Kingdon, D., Wingham, G., Pugh, K., Cordwell, J., Mander, H., Freeman, D. (2014). Depersonalisation in patients with persecutory delusions. Journal of Nervous and Mental Disease, 202, 752-758.

Freeman, D., Antley, A., Ehlers, A., Dunn, G., Thompson, C., Vorontsova, N., Garety, P., Kuipers, E., Glucksman, E., & Slater, M. (2014). The use of immersive virtual reality (VR) to predict the occurrence 6 months later of paranoid thinking and posttraumatic stress symptoms assessed by self-report and interviewer methods. Psychological Assessment, 36, 841-847.

2013

Garety, P. & Freeman, D. (2013). The past and future of delusion research. British Journal of Psychiatry, 203, 327-333.

Vorontsova, N., Garety, P. & Freeman, D. (2013). Cognitive factors maintaining persecutory delusions in psychosis: the contribution of depression. Journal of Abnormal Psychology, 122, 1121-1131.

Bebbington, P., McBride, O., Steel, C., Kuipers, E., Radovanovic, M., Brugha, T., Jenkins, R., Meltzer, H., & Freeman, D. (2013). The structure of paranoia in the general population. British Journal of Psychiatry, 202, 419-427.

Freeman, D., Startup, H., Dunn, G., Cernis, E., Wingham, G., Pugh, K., Cordwell, J., & Kingdon, D. (2013). The interaction of affective with psychotic processes: a test of the effects of worrying on working memory, jumping to conclusions, and anomalies of experience in patients with persecutory delusions. Journal of Psychiatric Research, 47, 1837-1842.

Freeman, D., Morrison, P., Murray, R., Evans, N., Lister, R. & Dunn, G. (2013). Persecutory ideation and a history of cannabis use. Schizophrenia Research, 148, 122-125.

Freeman, D., Thompson, C., Vorontsova, N., Dunn, G., Carter, L-A., Garety, P., Kuipers, E., Slater, M., Antley, A., Glucksman, E., & Ehlers, A. (2013). Paranoia and post-traumatic stress disorder in the months after a physical assault: a longitudinal study examining shared and differential predictors. Psychological Medicine, 43, 2673-2684.

Freeman, D., Startup, H., Myers, E., Harvey, A., Geddes, J., Yu, L-M., Zaiwalla, Z., Luengo-Fernandez, R., Foster, R., & Lister, R. (2013). The effects of using cognitive behavioural therapy to improve sleep for patients with delusions and hallucinations (the BEST study): study protocol. Trials, 14, 214.

Freeman, D., Dunn, G., Garety, P., Weinman, J., Kuipers, E., Fowler, D., Jolley, S. & Bebbington, P. (2013). Patients’ beliefs about the causes, persistence and control of psychotic experiences predict take-up of effective cognitive behaviour therapy for psychosis. Psychological Medicine, 43, 269-277.

Freeman, D., Dunn, G., Fowler, D., Bebbington, P., Kuipers, E., Emsley, R., Jolley, S., & Garety, P. (2013). Current paranoid thinking in patients with delusions. Schizophrenia Bulletin, 39, 1281-1287.

Schulze, K., Freeman, D., Green, C., & Kuipers, E. (2013). Intrusive mental imagery in patients with persecutory delusions. Behaviour Research and Therapy, 51, 7-14.

Garety, P., Gittins, M., Jolley, S., Bebbington, P., Dunn, G., Kuipers, E., Fowler, D. & Freeman, D. (2013). Differences in cognitive and emotional processes between persecutory and grandiose delusions. Schizophrenia Bulletin, 39, 629-639.

Garety, P., Joyce, E., Jolley, S., Emsley, R., Waller, H., Kuipers, E., Bebbington, P., Fowler, D., Dunn, G., & Freeman, D. (2013). Neuropsychological functioning and jumping to conclusions in delusions. Schizophrenia Research, 150, 570-574.

2012

Freeman, D., Stahl, D., McManus, S., Meltzer, H., Brugha, T., Wiles, N., & Bebbington, P. (2012). Insomnia, worry, anxiety and depression as predictors of the occurrence and persistence of paranoid thinking. Social Psychiatry and Psychiatric Epidemiology, 47, 1195-1203.

Freeman, D., Evans, N., & Lister, R. (2012). Gut feelings, deliberative thought, and paranoid ideation: a study of experiential and rational reasoning. Psychiatry Research, 15, 119-122.

Freeman, D., Dunn, G., Startup, H. & Kingdon, D. (2012). The effects of reducing worry in patients with persecutory delusions: study protocol for a randomized controlled trial. Trials.  Vol. 13.

Dunn, G., Fowler, D., Rollinson, R., Freeman, D., Kuipers, E., Smith, B., Steel, C., Onwumere, J., Jolley, S., Garety, P. & Bebbington, P. (2012). Effective elements of CBT for psychosis: results of a novel type of sungroup analysis based on principal stratification. Psychological Medicine, 42, 1057-1068.

So, S., Freeman, D., Dunn, G., Kapur, S., Kuipers, E., Bebbington, P., Fowler, D., & Garety, P. (2012).  Jumping to conclusions, a lack of belief flexibility and delusional conviction in psychosis. Journal of Abnormal Psychology, 121, 129-139.

Jacobson, P., Freeman, D., & Salkovskis, P. (2012). Reasoning bias and belief conviction in obsessive-compulsive disorder and delusions: Jumping to conclusions across disorders? British Journal of Clinical Psychology, 51, 84-99.

Fowler, D., Hodgekins, J., Garety, P., Freeman, D. Kuipers, E., Dunn, G., Smith, B., Bebbington, P. (2012). Negative cognition, depressed mood and paranoia: A longitudinal pathway analysis using structural equation modelling. Schizophrenia Bulletin, 38, 1063-1073.

2011

Freeman, D. (2011). Improving cognitive treatments for delusions. Schizophrenia Research, 132, 135-139.

Freeman, D., McManus, S., Brugha, T., Meltzer, H., Jenkins, R., & Bebbington, P. (2011). Concomitants of paranoia in the general population. Psychological Medicine, 41, 923-936.

Bell, V., Halligan, P., Pugh, K., & Freeman, D. (2011). Correlates of perceptual distortions in clinical and non-clinical populations using the Cardiff Anomalous Perceptions Scale. Psychiatry Research, 189, 451-457.

Myers, E., Startup, H., & Freeman, D. (2011). Cognitive behavioural treatment of insomnia in individuals with persistent persecutory delusions. Journal of Behavior Therapy and Experimental Psychiatry, 42, 330-336.

Waller, H., Freeman, D., Jolley, S., Dunn, G., & Garety, P. (2011). Targeting reasoning biases in delusions. Journal of Behavior Therapy and Experimental Psychiatry, 42, 414-421.

Ross, K., Freeman, D., Dunn, G., & Garety, P. (2011). Can jumping to conclusions be reduced in people with delusions? An experimental investigation of a brief reasoning training module. Schizophrenia Bulletin, 37, 324-333.

Green, C., Freeman, D., Kuipers, E., Bebbington, P., Fowler, D., Dunn, G., & Garety, P. (2011). Paranoid explanations of experience. Behavioural and Cognitive Psychotherapy, 39, 21-34.

Onwumere, J., Kuipers, E., Bebbington, P., Dunn, G., Freeman, D., Fowler, D., & Garety, P. (2011). Coping styles in carers of people with recent and long-term psychosis. Journal of Nervous and Mental Disease, 199, 423-424.