Dream research in schizophrenia: methodological issues and a dimensional approach
Abstract
Dreaming in patients with schizophrenia was and is of particular interest to researchers and clinicians due to the phenomenological similarities between the dreaming state and schizophrenic daytime symptomatology such as bizarre thoughts or hallucinations. Extensive literature reviews have shown that dream studies in the field of psychopathology often do not fulfill common scientific criteria. The present paper focuses on the methodological issues like sampling methods, the dream collection method, and dream content analysis that are crucial with regard to the validity of the findings. It is also suggested that the so-called dimensional approach (linking severity of daytime symptoms directly to specific dream characteristics) will be very helpful for identifying which psychopathological symptoms of schizophrenia are most closely linked to dream content.
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Clinical studies have provided evidence on the potential interaction among dream experience, sleep alterations and affective disorders.
“clinical studies have also provided evidence on the potential interaction among DE, sleep alterations and affective disorders”
From The Functional Role of Dreaming in Emotional Processes (2019) · cites this paper as Schredl, 2011
Cites
Principles and Practice of Sleep Medicine
Kryger, M. H., Roth, T. G., & Dement, W. C. (2011) · Elsevier eBooks · doi:10.1016/c2009-0-59875-3 · Cited by 5,118 · see citing works
Principles and practice of sleep medicine
Mazzoti, G. (2001) · Depression and Anxiety · doi:10.1002/da.1030 · Cited by 1,039 · see citing works
The content analysis of dreams
Hall, C., & van de Castle, R. L. (1966) · The American Journal of Psychology · doi:10.2307/1420563 · Cited by 781 · see citing works
Finding Meaning in Dreams: A Quantitative Approach
Pace‐Schott, E. F., & Domhoff, G. W. (1997) · Contemporary Sociology A Journal of Reviews · doi:10.2307/2655132 · Cited by 431 · see citing works
Sleep Disorders. Diagnosis and Treatment
EVANS, J. (1979) · Journal of Neurology Neurosurgery & Psychiatry · doi:10.1136/jnnp.42.10.971-b · Cited by 309 · see citing works
In Search of Dreams: Results of Experimental Dream Research
Strauch, I., & Meier-Schiesser, B. (1996) · Medical Entomology and Zoology · Cited by 184 · see citing works
Schredl, M., & Doll, E. (1998) · Consciousness and Cognition · doi:10.1006/ccog.1998.0356 · Cited by 174 · see citing works
In search of dreams: results of experimental dream research
(1996) · Choice Reviews Online · doi:10.5860/choice.33-5995 · Cited by 172 · see citing works
Internationale Skalen für Psychiatrie
Weyer, G. (2005) · Cited by 169 · see citing works
Questionnaires and diaries as research instruments in dream research: Methodological issues.
Schredl, M. (2002) · Dreaming · doi:10.1023/a:1013890421674 · Cited by 161 · see citing works
Drug induced nightmares—an etiology based review
Pagel, J. F., & Helfter, P. (2003) · Human Psychopharmacology Clinical and Experimental · doi:10.1002/hup.465 · Cited by 152 · see citing works
The Dream as a Model for Psychosis: An Experimental Approach Using Bizarreness as a Cognitive Marker
Scarone, S., Manzone, M. L., Gambini, O., Kantzas, I., Limosani, I., D’Agostino, A., & Hobson, J. A. (2007) · Schizophrenia Bulletin · doi:10.1093/schbul/sbm116 · Cited by 118 · see citing works
HOME AND LABORATORY DREAMS COLLECTED UNDER UNIFORM SAMPLING CONDITIONS
Weisz, R., & Foulkes, D. (1970) · Psychophysiology · doi:10.1111/j.1469-8986.1970.tb02247.x · Cited by 84 · see citing works
Dreaming and psychopathology: Dream recall and dream content of psychiatric inpatients.
Schredl, M., & Engelhardt, H. (2001) · Sleep and Hypnosis · Cited by 66 · see citing works
Dream content in chronically-treated persons with schizophrenia
Lusignan, F., Zadra, A. L., Dubuc, M.-J., Daoust, A.-M., Mottard, J., & Godbout, R. (2009) · Schizophrenia Research · doi:10.1016/j.schres.2009.03.032 · Cited by 55 · see citing works
Dream content analysis: Basic principles
Schredl, M. (2010) · International journal of dream research · doi:10.11588/ijodr.2010.1.474 · Cited by 52 · see citing works
Schredl, M. (2008) · Heidelberg University Library · doi:10.11588/heidok.00008425 · Cited by 50 · see citing works
Which Dream Does the Patient Tell?
Whitman, R. M. (1963) · Archives of General Psychiatry · doi:10.1001/archpsyc.1963.01720090065007 · Cited by 48 · see citing works
Sleep disorders: diagnosis and treatment
Roth, B. (1982) · Electroencephalography and Clinical Neurophysiology · doi:10.1016/0013-4694(82)90186-9 · Cited by 42 · see citing works
Die nächtliche Traumwelt. Eine Einführung in die psychologische Traumforschung
Schredl, M. (1999) · Cited by 39 · see citing works
Alexithymia and impoverished dream recall in asthmatic patients: Evidence from self-report measures
Nielsen, T., Ouellet, L., Warnes, H., Cartier, A., Malo, J., & Montplaisir, J. Y. (1997) · Journal of Psychosomatic Research · doi:10.1016/s0022-3999(96)00230-9 · Cited by 36 · see citing works
Stability and Variability of Dream Content
Schredl, M. (1998) · Perceptual and Motor Skills · doi:10.2466/pms.1998.86.2.733 · Cited by 35 · see citing works
KRAMER, M. L., & Roth, T. (1973) · Comprehensive Psychiatry · doi:10.1016/0010-440x(73)90024-2 · Cited by 33 · see citing works
Dream recall, dream length, and sleep duration: state or trait factor
Schredl, M., & Reinhard, I. (2008) · Perceptual and Motor Skills · doi:10.2466/pms.106.2.633-636 · Cited by 33 · see citing works
Self-citationMethodological issues in the Quantitative Analysis of Dream Content
Urbina, S. P. (1981) · Journal of Personality Assessment · doi:10.1207/s15327752jpa4501_14 · Cited by 33 · see citing works
Heather-Greener, G. Q., Comstock, D., & Joyce, R. P. (2010) · Psychotherapy and Psychosomatics · doi:10.1159/000289078 · Cited by 30 · see citing works
Dreams of singles: effects of waking-life social contacts on dream content
Schredl, M. (2001) · Personality and Individual Differences · doi:10.1016/s0191-8869(00)00135-5 · Cited by 30 · see citing works
The effect of trimipramine on dream recall and dream emotions in depressive outpatients
Schredl, M., Berger, T., & Riemann, D. W. (2009) · Psychiatry Research · doi:10.1016/j.psychres.2008.03.002 · Cited by 29 · see citing works
Medication and dreams: Changes in dream content after drug treatment.
Kirschner, N. T. (1999) · Dreaming · doi:10.1023/a:1021349901234 · Cited by 29 · see citing works
Dreams and dreaming among the elderly: An overview
Funkhouser, A. T., Hirsbrunner, H.-P., Cornu, C. M., & Bahro, M. (1999) · Aging & Mental Health · doi:10.1080/13607869956398 · Cited by 29 · see citing works
Anxiety and Hostility in the Manifest Dreams of Schizophrenic Patients
Stompe, T., Ritter, K. M., Ortwein-Swoboda, G., Schmid-Siegel, B., Zitterl, W., Strobl, R., & Schanda, H. (2003) · The Journal of Nervous and Mental Disease · doi:10.1097/01.nmd.0000100924.73596.b8 · Cited by 28 · see citing works
Dream content of patients with sleep apnea
Schredl, M., Kraft-Schneider, B., Kröger, H., & Heuser, I. (1999) · Somnologie - Schlafforschung und Schlafmedizin · doi:10.1007/s11818-999-0042-3 · Cited by 27 · see citing works
Dream recall frequency and sleep quality of patients with restless legs syndrome
Schredl, M. (2001) · European Journal of Neurology · doi:10.1046/j.1468-1331.2001.00203.x · Cited by 26 · see citing works
The sleep habits and sleep disorders in children with headache.
Żarowski, M., Młodzikowska-Albrecht, J., & Steinborn, B. (2007) · PubMed · Cited by 25 · see citing works
The Relationship Between Disturbed Dreaming and Somatic Distress
Levin, R., Lantz, E., Fireman, G. D., & Spendlove, S. J. (2009) · The Journal of Nervous and Mental Disease · doi:10.1097/nmd.0b013e3181b0bd65 · Cited by 17 · see citing works
Schredl, M., Loßnitzer, T., & Vetter, S. (1998) · Perceptual and Motor Skills · doi:10.2466/pms.1998.87.2.513 · Cited by 15 · see citing works
Ratio of Male and Female Characters in a Dream Series
Schredl, M., & Jacob, S. (1998) · Perceptual and Motor Skills · doi:10.2466/pms.1998.86.1.198 · Cited by 14 · see citing works
Schredl, M., & Keller, K. (2008) · Imagination Cognition and Personality · doi:10.2190/ic.28.1.d · Cited by 11 · see citing works
THE PROBLEM OF DREAM LENGTH IN ANALYSIS OF CONTENT
Schredl, M. (1999) · Perceptual and Motor Skills · doi:10.2466/pms.1999.88.2.434 · Cited by 9 · see citing works
Ph, O., Whitman, R. M., Kramer, M., & Baldridge, B. J. (1969) · PubMed · Cited by 8 · see citing works
EEG sleep in non-affective psychiatric disorders
Kerkhofs, M. (1997) · Sleep Medicine Reviews · doi:10.1016/s1087-0792(97)90013-7 · Cited by 7 · see citing works
The role of mood congruency memory effects in dream recall: A pilot study.
Schredl, M., Hebel, M. E., Kluetsch, R. C., & Liehe, L. J. (2009) · Dreaming · doi:10.1037/a0016295 · Cited by 6 · see citing works
Pl, G., & Spoto, G. (1977) · PubMed · Cited by 4 · see citing works
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4 of the 47 references couldn’t be matched to a known paper.
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The Functional Role of Dreaming in Emotional Processes
Scarpelli, S., Bartolacci, C., D'Atri, A., Gorgoni, M., & De Gennaro, L. (2019) · Frontiers in Psychology · doi:10.3389/fpsyg.2019.00459 · Cited by 190 · see citing works
“Interestingly, clinical studies have also provided evidence on the potential interaction among DE, sleep alterations and affective disorders (Levin and Nielsen, 2007; Nielsen and Levin, 2007; Schredl, 2011).”
BackgroundChildhood sleep disturbance and risk of psychotic experiences at 18: UK birth cohort
Thompson, A., Lereya, S. T., Lewis, G., Zammit, S., Fisher, H. L., & Wolke, D. (2015) · British Journal of Psychiatry · doi:10.1192/bjp.bp.113.144089 · Cited by 61 · see citing works
“45 This is related to the increased interest in dreams 46 or REM sleep 47 as a neurobiological model for schizophrenia or psychotic phenomena.”
Llewellyn, S. (2013) · Behavioral and Brain Sciences · doi:10.1017/s0140525x12003135 · Cited by 95 · see citing works
Psychosis and the Control of Lucid Dreaming
Mota, N. B., Resende, A., Mota-Rolim, S. A., Copelli, M., & Ribeiro, S. T. G. (2016) · Frontiers in Psychology · doi:10.3389/fpsyg.2016.00294 · Cited by 39 · see citing works
“Taken together, both psychometric features reveal impairment of social behavior and thought disorganization among lucid dreamers in the S group, which could be considered a potential disadvantage related to clinical severity.”
BackgroundSkancke, J. F., Holsen, I., & Schredl, M. (2014) · International journal of dream research · doi:10.11588/ijodr.2014.1.12184 · Cited by 23 · see citing works
“The reviews by Kramer (1978; 2000; 2010), Kramer and Nuhic (2007), and the paper by M. Schredl (2011) are recommended for readers eager to learn more in detail of these issues.”
BackgroundThe Dreaming Brain/Mind: A Role in Understanding Complex Mental Disorders?
D’Agostino, A., Limosani, I., & Scarone, S. (2012) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2012.00003 · Cited by 13 · see citing works
“Although interest in the relationship between dreams and psychosis has refluorished in recent research (Scarone et al., 2008; Lusignan et al., 2009; Yu, 2009; Noreika et al., 2010; Schredl, 2011; Zanasi et al., 2011), more experimental data are needed to understand whether or not the abundant findings which have only…”
BackgroundPutois, B., Leslie, W., Asfeld, C., Sierro, C., Higgins, S., & Ruby, P. M. (2020) · Frontiers in Neurology · doi:10.3389/fneur.2020.00724 · Cited by 15 · see citing works
“However, DRF is not modified in these patients (94).”
BackgroundAre delusional contents replayed during dreams?
D’Agostino, A., Aletti, G., Carboni, M. E. G., Cavallotti, S., Limosani, I., Manzone, M. L., & Scarone, S. (2013) · Consciousness and Cognition · doi:10.1016/j.concog.2013.04.006 · Cited by 11 · see citing works
Such stuff as REM and NREM dreams are made on? An elaboration
Llewellyn, S. (2013) · Behavioral and Brain Sciences · doi:10.1017/s0140525x1300160x · Cited by 7 · see citing works
I’m thinking your thoughts while I sleep: Sense of agency and ownership over dream thought.
Rosen, M. G. (2015) · Psychology of Consciousness Theory Research and Practice · doi:10.1037/cns0000064 · Cited by 7 · see citing works
Zadra, A. L., & Domhoff, G. W. (2016) · Elsevier eBooks · doi:10.1016/b978-0-323-24288-2.00049-0 · Cited by 6 · see citing works
Khodarahimi, S., Mirderikvand, F., & Amraei, K. (2021) · Current Psychology · doi:10.1007/s12144-021-01428-w · Cited by 4 · see citing works
“…a bilateral relationship between NA, dreams and sleep quality in anxiety disorders (Alvaro et al., 2013; Bouwmans, Bos, Hoenders, Oldehinkel, & de Jonge, 2017; Kallmeyer & Chang, 1998; Latif et al., 2019; Levin & Nielsen, 2007; Schredl, 2011; Weinstein, Campbell, & Vansteenkiste, 2018).”
BackgroundKhazaie, H., Tahmasian, M., Younesi, G., Schwebel, D. C., Rezaei, M., & Rezaie, L. (2013) · Sleep Medicine · doi:10.1016/j.sleep.2013.11.391 · Cited by 4 · see citing works
“content of patients with schizophrenia versus those without mental illness (4-7).”
BackgroundGallo, F. T., Herrero, N. L., Tommasel, A., Godoy, D. L., Spiousas, I., Rolín, M. G., Ramele, R., Gleiser, P. M., & Forcato, C. (2023) · doi:10.31234/osf.io/qf4z7 · Cited by 3 · see citing works
Dream Patterns in Patients with Acute Myocardial Infarction: Data from the STEP-IN-AMI Trial
Roncella, A., Pasceri, V., Pristipino, C., Michele, L. D., Irini, D., Allan, R., Pelliccia, F., & Speciale, G. (2025) · Journal of Clinical Medicine · doi:10.3390/jcm15010231
“Some studies have been conducted on dreaming in various pathological conditions as schizophrenia [12], pregnant and postpartum mothers [13], and pts suffering from burn pain [14].”
Michels, F., Schilling, C., Rausch, F., Eifler, S., Zink, M., Meyer-Lindenberg, A., & Schredl, M. (2014) · University Library Heidelberg · doi:10.11588/ijodr.2014.1.11819 · Cited by 20 · see citing works
- Authors
- Schredl, M.
- Affiliations
- Central Institute of Mental Health (DE)
- Corresponding author
- Schredl, Michael
- ORCID
- Schredl, Michael
- Venue
- Consciousness and Cognition
- Publisher
- Elsevier BV
- Published
- 2011-12
- Volume
- 20
- Issue
- 4
- Pages
- 1036-1041
- ISSN
- 1053-8100 (ISSN-L)
- OpenAlex
- W2032004631
- Cited by
- 17
- References
- 47
- Citations by year
- 2025: 1 · 2024: 1 · 2023: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2016: 2 · 2015: 2 · 2014: 2 · 2013: 4 · 2012: 1
- FWCI
- 1.07
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Consciousness and Cognition (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
- Social Sciences › Psychology › Clinical Psychology › Psychoanalysis and Psychopathology Research
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Keywords
- schizophrenia, dreams, dream content analysis, sampling methods, dimensional approach, hallucinations, daytime symptoms
- MeSH terms
- Data Interpretation, Statistical, Dreams, Humans, Schizophrenia, Schizophrenic Psychology, Antipsychotic Agents, Case-Control Studies, Biomedical Research
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