Perception of sleep in good sleepers and patients with insomnia - part 2

Perception of sleep in good sleepers and patients with insomnia - part 2 - PERSLEEP 2

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00008965

Enrollment

Registered

2015-11-17

Start date

2016-01-04

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Sleepers F51.0

Interventions

Group 1: Patients with Insomnia This study investiigates the perecption of sleep in good sleepers (n=47) and patients with insomnia (n=47) in realtion to obejctive parameters (polysomnography). To thi

Eligibility

Sex/Gender

All

Age

30 Years to 60 Years

Inclusion criteria

Inclusion criteria: • Age 30 to 60 years (a limited age range seems adequate in order to avoid marked age-related confounds) • For the patient group: ID diagnosis (DSM 5, APA, 2013) and a mismatch between subjective and objective total sleep time of at least 60 minutes (i.e. in the direction of a subjective underestimation of TST). Subjective TST will be derived from the 14 day sleep diary and will be contrasted to the PSG derived TST of the baseline night. • Normal hearing (as determined by audiometry) • Signed informed consent

Exclusion criteria

Exclusion criteria: • Psychiatric diseases (acute/ lifetime) in the control group (evaluated with the SCID-I) • Other acute and lifetime psychiatric diseases apart from Insomnia Disorder in the patient group (evaluated with the SCID-I) • Sleep disorders according to the International Classification of Sleep Disorders (ICSD-3; AASM, 2013) in the control group (evaluated by a clinical interview and a polysomnographic investigation in the sleep laboratory of the Department of Psychiatry and Psychotherapy) • Other sleep disorders apart from primary insomnia according to the International Classification of Sleep Disorders (ICSD-3; AASM, 2013) in the patient group (evaluated by a clinical interview and a polysomnographic investigation in the sleep laboratory of the Centre for Mental Disorders - see also description of sleep recordings for details) • Shift work or transmeridian flights within the last 4 weeks and irregular sleep-wake rhythms (frequent shifts of bedtimes > 1 hour) • Regular intake of any psychotropic substance known to affect sleep within the two weeks before the investigation or during the participation in this study; or ongoing psychotherapy • Pregnancy or lactation • Clinically significant, severe or unstable medical diseases that have an impact on sleep

Design outcomes

Primary

Measure	Time frame
P2 amplitude as measured with event related potentials	—

Secondary

Measure	Time frame
N1 amplitude as measured with event-related potentials	—

Countries

Germany

Contacts

Public ContactDieter Riemann

Abteilung für Klinische Psycholgie und PsychophysiologieKlinik für Psychiatrie und PsychotherapieUniversitätsklinik Freiburg

dieter.riemann@uniklinik-freiburg.de076127069190

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 15, 2026