Intrinsic Motivation and Cognition in Schizophrenia

Intrinsic Motivation and Cognition in Schizophrenia - Intrinsic Motivation and Cognition in Schizophrenia

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON40471

Enrollment

Registered

2014-06-02

Start date

2014-04-25

Completion date

Unknown

Last updated

2024-04-29

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

Conditions

Schizophrenia vulnerabilty for psychosis

Interventions

None listed

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: - Diagnosis of schizophrenia according to DSM-IV-TR (early onset en late onset) - Age between 18 and 65 years. Exclusion of patients older than 65 years considering the influence of aging processes on cognition.

Exclusion criteria

Exclusion criteria: - Substance dependence according to the DSM-IV-TR. - Personality in A or B cluster according to the DSM-IV-TR. - Moderate to severe depressive disorder according to the DSM-IV-TR. - Total IQ score below 70 on the Wechsler Adult Intelligence Scale IV (WAIS-IV). - Patient wholly or partially deaf or blind. - Patient doesn't suffiently understand explanations and instructions prior to the study or insufficient (eg insufficient mastery of Dutch). - Congenital and non-congenital hersenletslel. - Amnestic syndromes according to the DSM-IV-TR. - Suicidality - GAF

Design outcomes

Primary

Measure	Time frame
Primary hypothesis The researchers will translate the IMI-SR into Dutch. Then a native speaker will translate it back into English, and both the back-translated English version of the IMI-SR and the original English version will be compared. Reliability and validity of the N-IMI-SR: Internal (item-)consistency, test-retest reliability, convergent and divergent validity. Convergent validity: Performance Motivation Test (PMT). Divergent validity: Symptom Checklist 90 Revised (SCL-90-R). Secondary hypothesis The correlation between motivation and cognition is determined Motivation measures - N-IMI-SR Cognition measures: - Wechsler Adult Intelligence Scale IV (WAIS-IV), measuring intelligence. - Winsconsin Card Sorting Test (WCST), measuring executive functioning, planning and organizing abilities. - Trail Making Test (TMT), measuring attention.	—

Measure

Time frame

Primary hypothesis The researchers will translate the IMI-SR into Dutch. Then a native speaker will translate it back into English, and both the back-translated English version of the IMI-SR and the original English version will be compared. Reliability and validity of the N-IMI-SR: Internal (item-)consistency, test-retest reliability, convergent and divergent validity. Convergent validity: Performance Motivation Test (PMT). Divergent validity: Symptom Checklist 90 Revised (SCL-90-R). Secondary hypothesis The correlation between motivation and cognition is determined Motivation measures - N-IMI-SR Cognition measures: - Wechsler Adult Intelligence Scale IV (WAIS-IV), measuring intelligence. - Winsconsin Card Sorting Test (WCST), measuring executive functioning, planning and organizing abilities. - Trail Making Test (TMT), measuring attention.

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Countries

Netherlands

Outcome results