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PFC-HC coupling in schizophrenia and related polymorphisms in working memory

PFC-HC coupling in schizophrenia and related polymorphisms in working memory

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00004290
Enrollment
220
Registered
2012-11-07
Start date
2012-01-17
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

F20.0

Interventions

Group 1: Patients All subjects are screened for possible exclusion criteria. Subjects that gave their informed consent will undergo neuropsychological testing. The investigated domains include attenti

Sponsors

Zentralinstitut für Seelische Gesundheit
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: All subjects: • Adequate proficiency in German language • Ability to understand the study protocol and give informed consent For patients: • Subjects have to meet DSM-IV criteria for schizophrenia • Stable monotherapy or unmedicated patients, infrequent use of benzodiazepines is allowed (last use >24 hours before study to avoid influence on cognitive functions)

Exclusion criteria

Exclusion criteria: • subjects with a psychiatric condition (healthy controls), acute worsening of symptoms or additional psychiatric condition (patients) • presentation with a severe neurological disorder • major medical conditions e.g. renal failure, hepatic cirrhosis • pregnancy • metal implants • tatoos covering head or neck • claustrophobia • substance abuse (excluding nicotine and caffeine) • arterial hypertension • diabetes

Design outcomes

Primary

MeasureTime frame
•Characterization of task-related BOLD activation in healthy subjects and patients using both univariate (statistical parametric mapping) and multivariate methods („machine learning“). •Evaluation of prefrontal-hippocampal connectivity during working memory processes. •Modulation of both activity and connectivity patterns by psychiatric risk polymorphisms.

Secondary

MeasureTime frame
• Comparison of imaging data with biophysical models (cooperation with Prof. Dr. Daniel Durstewitz) to gain a better mechanistic understanding of underlying (patho)physiological processes • Development of multivariate statistical methods that can be used with functional imaging data • Correlation of neuropsychological and imaging data

Countries

Germany

Contacts

Public ContactPeter Kirsch

Zentralinstitut für Seelische Gesundheit

peter.kirsch at zi-mannheim.de0621 1703 6501

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026