Burg, J.M. and Michalak, J. (2011). The healthy quality of mindful breathing: associations with rumination and depression. Cognitive Therapy and Research, 35, 179–185.
Ehring, T. and Watkins, E.R. (2008). Repetitive negative thinking as a transdiagnostic process. International Journal of Cognitive Psychotherapy, 1, 192–205.
Ehring, T., Zetsche, U., Weidacker, K., Wahl, K., Schönfeld, S. and Ehlers, A. (2011). The Perseverative Thinking Questionnaire (PTQ): validation of a content-independent measure of repetitive negative thinking. Journal of Behavioral Therapy and Experimental Psychiatry, 42, 225–232.
Freeman, D., Dunn, G., Murray, R.M., Evans, N., Lister, R., Antley, A., et al. (2014). How cannabis causes paranoia: using the intravenous administration of Δ9-tetrahydrocannabinol (THC) to identify key cognitive mechanisms leading to paranoia. Schizophrenia Bulletin. Published online before print 15 July 2014, doi: 10.1093/schbul/sbu098
Freeman, D., Dunn, G., Startup, H. and Kingdon, D. (2012). The effects of reducing worry in patients with persecutory delusions: study protocol for a randomized controlled trial. Trials, 13, 223.
Freeman, D., Dunn, G., Startup, H., Pugh, K., Cordwell, J., Mander, H., et al. (2015) Effect 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. and Garety, P.A. (2000). Comments on the content of persecutory delusions: does the definition need clarification?
British Journal of Clinical Psychology, 39, 407–414.
Freeman, D., Garety, P.A., Kuipers, E., Fowler, D. and Bebbington, P.E. (2002). A cognitive model of persecutory delusions. British Journal of Clinical Psychology, 41, 331–347.
Freeman, D., Pugh, K., Antley, A., Slater, M., Bebbington, P., Gittins, M., et al. (2008). Virtual reality study of paranoid thinking in the general population. British Journal of Psychiatry, 192, 258–263.
Freeman, D., Pugh, K., Vorontsova, N., Antley, A. and Slater, M. (2010). Testing the continuum of delusional beliefs: an experimental study using virtual reality. Journal of Abnormal Psychology, 119, 83–92.
Green, C., Freeman, D., Kuipers, E., Bebbington, P., Fowler, D., Dunn, G., et al. (2008). Measuring ideas of persecution and reference: the Green et al. Paranoid Thought Scales (G-PTS). Psychological Medicine, 38, 101–111.
Haddock, G., McCarron, J., Tarrier, N. and Faragher, F. B. (1999). Scales to measure dimensions of hallucinations and delusions: the psychotic symptom rating scales (PSYRATS). Psychological Medicine, 29, 879–889.
Hepworth, C., Startup, H. and Freeman, D. (2011). Developing treatments of persistent persecutory delusions: the impact of an emotional processing and metacognitive awareness intervention. The Journal of Nervous and Mental Disease, 199, 653–658.
IBM (2011). SPSS Statistics Version 20. Release 20.0.0. IBM Corporation.
Martinelli, C., Cavanagh, K. and Dudley, R.E.J. (2013). The impact of rumination on state paranoid ideation in a nonclinical sample. Behavior Therapy, 44, 385–394.
Meyer, T.J., Miller, M.L., Metzger, R.L. and Borkovec, T.D. (1990). Development and validation of the Penn State Worry Questionnaire. Behaviour Research and Therapy, 28, 487–495.
Müller, D., Teismann, T., Havemann, B., Michalak, J. and Seehagen, S. (2013). Ruminative thinking as a predictor of perceived postpartum mother-infant bonding. Cognitive Therapy and Research, 37, 89–96.
Muthén, L.K. and Muthén, B.O. (1998–2012). MPlus User's Guide (7th edn.)
Los Angeles, CA: Muthén and Muthén.
Nolen-Hoeksema, S. and Morrow, J. (1991). A prospective study of depression and posttraumatic stress symptoms after a natural disaster: the 1989 Loma Prieta earthquake. Journal of Personality and Social Psychology, 61, 115–121.
Raes, F. (2012). Repetitive negative thinking predicts depressed mood at 3-year follow-up in students. Journal of Psychopathology and Behavioral Assessment, 34, 497–501.
Simpson, J., MacGregor, B., Cavanagh, K. and Dudley, R.E.J. (2012). Safety behaviours, rumination and trait paranoia in a non-clinical sample. Journal of Experimental Psychopathology, 3, 612–623.
Spasojević, J. and Alloy, L.B. (2001). Rumination as a common mechanism relating depressive risk factors to depression. Emotion, 1, 25–37.
Startup, H.M. and Erickson, T.M. (2006). The Penn State Worry Questionnaire (PSWQ). In Davey, G.C.L. and Wells, A. (Eds), Worry and its Psychological Disorders (pp 101–120). Chichester: Wiley.
Teismann, T., Het, S., Grillenberger, M., Willutzki, U. and Wolf, O.T. (2013). Writing about life goals: effects on rumination, mood and the cortisol awakening response. Journal of Health Psychology. Published online before print July 1 2013, doi:10.1177/1359105313490774
Teismann, T., von Brachel, R., Hanning, S., Grillenberger, M., Hebermehl, L., Hornstein, I., et al. (2014). A randomized controlled trial on the effectiveness of a rumination-focused group treatment for residual depression. Psychotherapy Research, 24, 80–90.
Topper, M., Molenaar, D., Emmelkamp, P. and Ehring, T. (2014). Are rumination and worry two sides of the same coin? A structural equation modelling approach. Journal of Experimental Psychopathology, 5, 363–381.
Vossbeck-Elsebusch, A.N., Freisfeld, C. and Ehring, T. (2014). Predictors of posttraumatic stress symptoms following childbirth. BMC Psychiatry, 14, 200.