Michael Schredl

Summary

Affiliation: Central Institute of Mental Health
Country: Germany

Publications

  1. ncbi Gender differences in dream recall: a meta-analysis
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    J Sleep Res 17:125-31. 2008
  2. ncbi Factors of home dream recall: a structural equation model
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    J Sleep Res 12:133-41. 2003
  3. ncbi Continuity between waking activities and dream activities
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, P O Box 12 21 20, Mannheim, 68072, Germany
    Conscious Cogn 12:298-308. 2003
  4. ncbi Dreaming and insomnia: dream recall and dream content of patients with insomnia
    M Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    J Sleep Res 7:191-8. 1998
  5. ncbi Typical dreams: stability and gender differences
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    J Psychol 138:485-94. 2004
  6. ncbi The effect of donepezil on sleep in elderly, healthy persons: a double-blind placebo-controlled study
    M Schredl
    Department of Psychiatry and Psychotherapy, Charite University Medicine Berlin, Campus Benjamin Franklin, Berlin, Germany
    Pharmacopsychiatry 39:205-8. 2006
  7. ncbi Effects of state and trait factors on nightmare frequency
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, 68072 Mannheim, Germany
    Eur Arch Psychiatry Clin Neurosci 253:241-7. 2003
  8. ncbi Reliability in dream research: a methodological note
    M Schredl
    Central Institute of Mental Health, Mannheim, 68072, Germany
    Conscious Cogn 10:496-502. 2001
  9. ncbi Dream recall frequency and sleep quality of patients with restless legs syndrome
    M Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    Eur J Neurol 8:185-9. 2001
  10. ncbi Donepezil-induced REM sleep augmentation enhances memory performance in elderly, healthy persons
    M Schredl
    Sleep Laboratory, Central Institute of Mental Health, P O Box 122120, 68072, Mannheim, Germany
    Exp Gerontol 36:353-61. 2001

Detail Information

Publications58

  1. ncbi Gender differences in dream recall: a meta-analysis
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    J Sleep Res 17:125-31. 2008
    ..242 to 0.270. The findings suggest that the age-dependent gender differences in dream recall might be explained by gender-specific 'dream socialization'. Longitudinal studies in this area, however, are still lacking...
  2. ncbi Factors of home dream recall: a structural equation model
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    J Sleep Res 12:133-41. 2003
    ..g. the effect of the measurement technique on DRF itself, have to be clarified) and investigate additional variables which might be associated with DRF (see above)...
  3. ncbi Continuity between waking activities and dream activities
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, P O Box 12 21 20, Mannheim, 68072, Germany
    Conscious Cogn 12:298-308. 2003
    ..Nevertheless, it might be concluded that the continuity hypothesis in its present general form is not valid and should be elaborated and tested in a more specific way...
  4. ncbi Dreaming and insomnia: dream recall and dream content of patients with insomnia
    M Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    J Sleep Res 7:191-8. 1998
    ..It is suggested that future studies should use more dreams per subject in order to reduce error variance of the dream content measures and more detailed measures of waking life stress...
  5. ncbi Typical dreams: stability and gender differences
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    J Psychol 138:485-94. 2004
    ..The question of the meaning of these themes or the relationship between typical dream contents and waking life experiences, however, has not yet been answered and is open to future research...
  6. ncbi The effect of donepezil on sleep in elderly, healthy persons: a double-blind placebo-controlled study
    M Schredl
    Department of Psychiatry and Psychotherapy, Charite University Medicine Berlin, Campus Benjamin Franklin, Berlin, Germany
    Pharmacopsychiatry 39:205-8. 2006
    ..Previous research in younger individuals has shown that acetylcholinesterase inhibitors tend to enhance REM sleep...
  7. ncbi Effects of state and trait factors on nightmare frequency
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, 68072 Mannheim, Germany
    Eur Arch Psychiatry Clin Neurosci 253:241-7. 2003
    ..It will be also very interesting to study the relationship between stress and nightmare frequency in a sample who have undergone cognitive-behavioral treatment for nightmares...
  8. ncbi Reliability in dream research: a methodological note
    M Schredl
    Central Institute of Mental Health, Mannheim, 68072, Germany
    Conscious Cogn 10:496-502. 2001
    ..Further research is needed to extend the present findings to diary dreams and laboratory dreams...
  9. ncbi Dream recall frequency and sleep quality of patients with restless legs syndrome
    M Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    Eur J Neurol 8:185-9. 2001
    ..g. the functional state of the brain, are of importance in explaining dream recall in this patient group...
  10. ncbi Donepezil-induced REM sleep augmentation enhances memory performance in elderly, healthy persons
    M Schredl
    Sleep Laboratory, Central Institute of Mental Health, P O Box 122120, 68072, Mannheim, Germany
    Exp Gerontol 36:353-61. 2001
    ..Based on these findings, we conclude that there is an interrelationship between cognitive performance and amount of REM sleep in elderly humans as has been previously shown in animals and young adults...
  11. ncbi The use of dreams in psychotherapy: a survey of psychotherapists in private practice
    M Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    J Psychother Pract Res 9:81-7. 2000
    ..Because work on dreams was rated as beneficial for the clients, further studies investigating the effectiveness and the process of working on dreams will be of interest...
  12. ncbi Longitudinal study of nightmares in children: stability and effect of emotional symptoms
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    Child Psychiatry Hum Dev 40:439-49. 2009
    ..Children with 'chronic' nightmares showed more psychopathological symptoms. It would be interesting to follow-up these children in order to investigate whether childhood nightmares are also predictive for adult psychopathology...
  13. ncbi The relationship between REM sleep and memory consolidation in old age and effects of cholinergic medication
    Orla P Hornung
    Department of Psychiatry and Psychotherapy, Charite University Medicine Berlin, Campus Benjamin Franklin, Berlin, Germany
    Biol Psychiatry 61:750-7. 2007
    ..Recent findings in young adults suggest that rapid eye movement (REM) sleep plays a role in procedural memory consolidation. The significance of REM sleep for memory consolidation in old age has not yet been investigated...
  14. ncbi Dreams in patients with sleep disorders
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, PO Box 12 21 20, 68072 Mannheim, Germany
    Sleep Med Rev 13:215-21. 2009
    ..The number of studies in this field is still very small, however, and further research is needed to confirm and expand the reviewed findings...
  15. ncbi Sleep in adults with attention deficit hyperactivity disorder (ADHD) before and during treatment with methylphenidate: a controlled polysomnographic study
    Esther Sobanski
    Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Mannheim, Germany
    Sleep 31:375-81. 2008
    ..Thus the objectives of our study were to assess objective and subjective sleep parameters in adults with ADHD and the impact of stimulant medication on sleep...
  16. ncbi Manipulating REM sleep in older adults by selective REM sleep deprivation and physiological as well as pharmacological REM sleep augmentation methods
    Orla P Hornung
    Department of Psychiatry and Psychotherapy, Charite University Medicine Berlin, Campus Benjamin Franklin, Eschenallee 3, 14050 Berlin, Germany
    Exp Neurol 197:486-94. 2006
    ....
  17. ncbi The effect of trimipramine on dream recall and dream emotions in depressive outpatients
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    Psychiatry Res 167:279-86. 2009
    ..Future studies should analyze dream content in order to support the hypothesis that improvement in day-time symptoms is reflected in patients' dreams...
  18. ncbi Dream recall and dream content in obsessive-compulsive patients: is there a change during exposure treatment?
    Anne K Kuelz
    Department of Psychiatry and Psychotherapy, University Hospital Freiburg, Freiburg, Germany
    J Nerv Ment Dis 198:593-6. 2010
    ..The findings support the continuity hypothesis of dreaming by showing a link between day-time symptoms and OC symptoms in dreams. Contrary to expectations, however, exposure treatment does not intensify dreams...
  19. ncbi Dream recall and dream content in children with attention deficit/hyperactivity disorder
    Michael Schredl
    Schlaflabor, Zentralinstitut fur Seelische Gesundheit, Mannheim, Germany
    Child Psychiatry Hum Dev 41:230-8. 2010
    ..From a clinical point of view, it would be very interesting to study whether the negatively toned dreams change during treatment (pharmacological and/or psychotherapeutic) in a way similar to how sleep quality improves...
  20. ncbi Frequency of dream sharing: the effects of gender and personality
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Am J Psychol 123:93-101. 2010
    ..Longitudinal studies are needed to differentiate between state factors and trait factors and to validate the self-reported positive effects of dream sharing on intimacy in romantic relationships and friendships...
  21. ncbi Restless legs syndrome: evidence for nocturnal hypothalamic-pituitary-adrenal system activation
    Claudia Schilling
    Sleep Laboratory, Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Mannheim, Germany
    Mov Disord 25:1047-52. 2010
    ..Nocturnal cortisol release showed weak correlations with some polysomnographic parameters of disturbed sleep, making a potential contribution of RLS-induced sleep disruption to HPA system activation conceivable...
  22. ncbi Dream recall frequency in a representative German sample
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 106:699-702. 2008
    ..There was also a decline in dream-recall frequency with age. The explained variance, however, was small...
  23. ncbi Sharing dreams: sex and other sociodemographic variables
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 109:235-8. 2009
    ..Dream sharing differing by social class and education might point to class-specific attitudes toward dreams which have not yet been studied in detail...
  24. ncbi Information processing during sleep: the effect of olfactory stimuli on dream content and dream emotions
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, 68072 Mannheim, Germany
    J Sleep Res 18:285-90. 2009
    ..It would also be interesting to study the effect of positively toned olfactory stimuli on nightmares...
  25. ncbi Recall frequency of positive and negative dreams in a representative German sample
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 108:677-80. 2009
    ..There was also a decline in dream-recall frequency across age groups. The statistical analysis for the recall frequency of negatively toned dreams which were recalled less often showed less pronounced effects...
  26. ncbi Dream recall frequency by socioeconomic status of Chinese students
    Michael Schredl
    Zentralinstitut fur Seelische Gesundheit, Postfach 12 21 20, 68072 Mannheim, Germany
    Percept Mot Skills 105:636-8. 2007
    ..Researchers could investigate whether "dream socialization," e.g., encouragement of a child to remember his dreams, depends on socioeconomic background, whether these processes are mediated by culture...
  27. ncbi Dream recall and the full moon
    Michael Schredl
    Central Institute of Mental Health, Mannheim
    Percept Mot Skills 102:17-8. 2006
    ..Psychological factors might explain why some persons associate a full moon with increased dream recall...
  28. ncbi Nightmares and oxygen desaturations: is sleep apnea related to heightened nightmare frequency?
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, 68072, Mannheim, Germany
    Sleep Breath 10:203-9. 2006
    ..Some patients reported a correlation between daytime stressors and nightmares, which is in line with modern etiological models of nightmares...
  29. ncbi Snoring, breathing pauses, and nightmares
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 106:690-2. 2008
    ..Whereas the hypothesis that shortage of oxygen directly causes nightmares is not supported by the literature, novel internal stimuli might affect dream content...
  30. ncbi Dream recall and sleep duration: state or trait factor
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 101:613-6. 2005
    ..Sleep inertia might be an explanation for this finding...
  31. ncbi Gender differences in nightmare frequency: a meta-analysis
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Sleep Med Rev 15:115-21. 2011
    ....
  32. ncbi Relation between waking sport activities, reading, and dream content in sport students and psychology students
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    J Psychol 142:267-75. 2008
    ..Future studies using longitudinal designs would shed more light on this relation and would help derive a more precise formulation of the continuity hypothesis...
  33. ncbi Dream recall, dream length, and sleep duration: state or trait factor
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 106:633-6. 2008
    ..The analysis of diaries kept by the 444 participants over 14 days indicated that intra-individual fluctuations and interindividual differences in sleep duration affect dream recall...
  34. ncbi Characteristics and contents of dreams
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    Int Rev Neurobiol 92:135-54. 2010
    ..Dreams also have an effect on subsequent waking life, e.g., on daytime mood and creativity. The question about the functions of dreaming is still unanswered and open to future research...
  35. ncbi Dream recall and nightmare frequency: a family study
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 102:878-80. 2006
    ....
  36. ncbi Self-reported effects of dreams on waking-life creativity: an empirical study
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, PO Box 12 21 20, 68072 Mannheim, Germany
    J Psychol 141:35-46. 2007
    ..Future researchers should use diary techniques to study the effects of dreams on waking life and should develop techniques to increase the frequency of creative dreams that might be valuable as aids for people in creative jobs...
  37. ncbi Frequency of lucid dreaming in a representative German sample
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 112:104-8. 2011
    ....
  38. ncbi Prevalence of flying dreams
    Michael Schredl
    Zentralinstitut fur Seelische Gesundheit, Postfach 12 21 20, 68072 Mannheim, Germany
    Percept Mot Skills 105:657-60. 2007
    ..The increase in percentage of persons who report flying dreams from 1956 to 2000 might reflect the increasing amount of air travel. This would support the continuity hypothesis of dreaming...
  39. ncbi Sex differences in dream aggression
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    Behav Brain Sci 32:287-8; discussion 292-311. 2009
    ..One might argue that studying dream aggression might be even more promising because aggression in dreams is not socially labelled, as being aggressive in waking life is...
  40. ncbi Nightmare frequency and femininity/masculinity
    Michael Schredl
    Central Institute of Mental Health Mannheim, Germany
    Percept Mot Skills 111:60-4. 2010
    ....
  41. ncbi [Treatment of nightmares]
    Michael Schredl
    Zentralinstitut fur Seelische Gesundheit, Schlaflabor, Mannheim
    Prax Kinderpsychol Kinderpsychiatr 55:132-40. 2006
    ..The therapeutic approach consisting of confrontation, coping and training is easily applied--even by non-professionals--and the efficacy has been demonstrated for adult nightmare sufferers...
  42. ncbi Nighttime in dreams
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 114:457-60. 2012
    ..In order to pursue this line of research, it would be fruitful to study the dreams of persons with specific nighttime fears...
  43. ncbi Reliability and stability of a dream recall frequency scale
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 98:1422-6. 2004
    ..In conclusion, the present scale is well suited for measuring interindividual differences in dream recall frequency reliably...
  44. ncbi Association between a serotonin transporter length polymorphism and primary insomnia
    Michael Deuschle
    Central Institute of Mental Health, Department of Psychiatry and Psychotherapy, Mannheim, Germany
    Sleep 33:343-7. 2010
    ..To test the hypothesis that a 44-base-pair insertion/deletion polymorphism in the 5' regulatory region of the serotonin transporter gene (5-HTTLPR) is associated with primary insomnia...
  45. ncbi Frequency of dream recall by children and their mothers
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 103:657-8. 2006
    ..A small but significant positive Pearson correlation of .19 between the frequency of dreams reported by mothers and by their children is consistent with Cohen's 1973 hypothesis of a socialization effect on the frequency of dream recall...
  46. ncbi Sleep quality in adult patients with attention deficit hyperactivity disorder (ADHD)
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    Eur Arch Psychiatry Clin Neurosci 257:164-8. 2007
    ..Since primary sleep disorders are associated with cognitive impairment, one might expect that ADHD symptomatology may improve if comorbid sleep disorders are adequately treated in addition to the specific ADHD treatment...
  47. ncbi Nightmare frequency and nightmare topics in a representative German sample
    Michael Schredl
    Schlaflabor, Zentralinstitut fur Seelische Gesundheit, Postfach 12 21 20, 68072, Mannheim, Germany
    Eur Arch Psychiatry Clin Neurosci 260:565-70. 2010
    ....
  48. ncbi Effect of ambulatory blood pressure measurement on sleep in patients with a major depressive episode
    Florian Lederbogen
    Central Institute of Mental Health, Mannheim, Germany
    Blood Press Monit 8:187-90. 2003
    ..To assess the effects of ambulatory blood pressure measurement (ABPM) upon sleep in mentally depressed patients with near absence of deep (stage 3 and 4) sleep...
  49. ncbi Reading dream literature: frequency, influencing factors, and self-rated benefit
    Michael Schredl
    Sleep Laboratory, School of Management, Central Institute of Mental Health, Mannheim, Germany
    Am J Psychol 124:227-33. 2011
    ....
  50. ncbi Factors affecting nightmares in children: parents' vs. children's ratings
    Michael Schredl
    Sleep Laboratory, Central Institute of Mental Health, Mannheim, Germany
    Eur Child Adolesc Psychiatry 18:20-5. 2009
    ....
  51. ncbi Sleep and dreaming in patients with borderline personality disorder: A polysomnographic study
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany Electronic address
    Psychiatry Res 200:430-6. 2012
    ....
  52. ncbi Dream research in schizophrenia: methodological issues and a dimensional approach
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Conscious Cogn 20:1036-41. 2011
    ....
  53. ncbi Seasons in dreams
    Michael Schredl
    Central Institute of Mental Health, Mannheim, Germany
    Percept Mot Skills 98:1438-40. 2004
    ..Researchers should include the amount of time spent with season-related activities, conversations, and films to test whether in dreams the relation is direct between waking life and dreaming about seasons...
  54. ncbi Dreaming in posttraumatic stress disorder: A critical review of phenomenology, psychophysiology and treatment
    Lutz Wittmann
    Department of Psychiatry, University Hospital, Zurich, Switzerland
    Psychother Psychosom 76:25-39. 2007
    ..A deeper knowledge of posttraumatic dreams is essential for any theory of PTSD as well as for a better understanding of the overall function of dreaming...
  55. ncbi Prevalence and course of sleep problems in childhood
    Leonie Fricke-Oerkermann
    Department of Child and Adolescent Psychiatry and Psychotherapy, University of Cologne, Germany
    Sleep 30:1371-7. 2007
    ..The Cologne Children's Sleep Study intended to provide information on prevalence and course of difficulties of initiating and maintaining sleep in childhood...
  56. ncbi Nightmares: from anxiety symptom to sleep disorder
    Victor I Spoormaker
    Department of Clinical Psychology, Utrecht University, P O Box 80 140, 3508 TC Utrecht, The Netherlands
    Sleep Med Rev 10:19-31. 2006
    ..Nightmares are more than a symptom of a larger (anxiety) syndrome and need to be viewed from a sleep medicine perspective: nightmares are a highly prevalent and separate sleep disorder that can and should receive specific treatment...
  57. ncbi [Learning vocabulary and solving problems. Dreams are not incidental processes (interview by Dr. Thomas Heim)]
    Michael Schredl
    MMW Fortschr Med 146:6, 8. 2004
  58. ncbi Time required for motor activity in lucid dreams
    Daniel Erlacher
    Institute for Sport and Sport Science, University of Heidelberg, 69120 Heidelberg, Germany
    Percept Mot Skills 99:1239-42. 2004
    ..Analysis showed that the time needed for counting in a lucid dream is comparable to the time needed for counting in wakefulness, but motor activities required more time in lucid dreams than in the waking state...