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The influence of the need for cognitive closure on the delay discounting behavior in schizophrenia and bipolar disorder.

The influence of the need for cognitive closure on the delay discounting behavior in schizophrenia and bipolar disorder.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500115802
Enrollment
Unknown
Registered
2025-12-31
Start date
2025-12-31
Completion date
Unknown
Last updated
2026-01-05

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

Conditions

Bipolar disorder is characterized by the alternating occurrence of manic and depressive moods, accompanied by abnormal elevation and reduction in cognitive, emotional, and volitional activities. It may also be accompanied by psychotic symptoms such as hallucinations, delusions, and cognitive impairment. Schizophrenia is mainly manifested as positive symptoms mainly including hallucinations and del

Interventions

Patient groups (schizophrenia group):None
Patient groups (bipolar disorder group):None
Healthy control group:None

Sponsors

Hangzhou Seventh People's Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 55 Years

Inclusion criteria

Inclusion criteria: 1.Patients with schizophrenia or bipolar disorder The diagnosis is based on the discharge diagnosis of in - patients, which meets the ICD - 10 diagnostic criteria for schizophrenia or bipolar disorder. Age: between 18 and 55 years old. Education level: having completed at least primary school education, being able to understand the content of neuropsychological tests. Ethnicity: Han ethnicity. Voluntarily participating in this study and signing the informed consent form. 2.Healthy controls: Conduct interviews with normal controls to exclude those with any diseases or disorders meeting the ICD - 10 diagnostic criteria. Have good social functioning (able to work or study normally and not retired due to illness), and possess full capacity for action and responsibility. Age: between 18 and 55 years old. Educational level: having completed at least primary school education, and being able to understand the content of neuropsychological tests. Ethnicity: Han ethnicity. Voluntarily participate in this study and sign the informed consent form.

Exclusion criteria

Exclusion criteria: 1.Schizophrenia or Bipolar Disorder: Individuals with severe somatic diseases, organic brain diseases, or nervous system diseases.Those who meet the ICD - 10 criteria for other mental disorders such as depression, obsessive - compulsive disorder, schizoaffective disorder, organic mental disorder, substance - related mental disorder, as well as those with other cognitive disorders such as mental retardation.Individuals with color blindness or color weakness that affects neurocognitive tests, or those with metal objects in their bodies (such as metal dentures, pacemakers, etc.) that affect MRI examinations. 2.Healthy controls: Medical history: Those diagnosed with mental disorders or personality disorders according to ICD - 10. Those with severe somatic diseases, organic brain diseases, or nervous system diseases.Family history: Those with a positive family history of mental illness within the second - degree relatives over three generations.Medication history: Those who have taken antipsychotics or antidepressants. Those who have used benzodiazepines or other drugs that affect the central nervous system within one month before MRI and cognitive examinations.Physical conditions: Those with color blindness or color weakness that affects neurocognitive tests. Those with metal objects in their bodies (such as metal dentures, pacemakers, etc.) that affect MRI examinations.

Design outcomes

Primary

MeasureTime frame
Delay Discount Rate K;Need for Cognitive Closure;

Countries

China

Contacts

Public Contactliujian

Hangzhou Seventh People's Hospital

Lj7037@126.com+86 571 8512 9504

Outcome results

None listed

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