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Tree drawing test and drawing process

Tree drawing test and drawing process

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1030210661
Enrollment
230
Registered
2022-03-11
Start date
2022-03-11
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

schizophrenia (including schizophrenia-type disorders and delusional disorders)

Interventions

1. Puzzle task 2. Baum Test 3. Figure division Task 4. Comments on tasks 1 to 3 5. Brief Assessment of Cognition in Schizophrenia (BACS) Japanese version 6.Schizotypal Personality Scale 7. Self-R

Sponsors

Yumi Iwamitsu
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Patients 1. Schizophrenic patients (including schizophrenia-type disorder and delusional disorder) were diagnosed according to DSM5 (APA, 2013) at Tsuruga hospital. 2. The physicians determine that they are able to participate in this study. 3. All participants provided written consent to participate in this study. 4. The patients must be at least 20 years old. 5. The study will be conducted until the number of patients reaches 30 or more. (2) Healthy subjects Graduate students and staff from Kitasato University Graduate School of Medical Sciences who applied to participate in the research through poster postings and other means. Undergraduate and graduate students from the School of Letters, Arts and Sciences at Waseda University applied to participate through lectures taught by research collaborators and through emails sent on campus seeking research subjects. There were 200 healthy subjects, including 30 healthy adults needed to match the patient group in age.

Exclusion criteria

Exclusion criteria: the physicians determine that schizophrenic patients cannot participate in this study

Design outcomes

Primary

MeasureTime frame
1. Puzzle task 2. Baum Test 3. Figure division Task 5. Brief Assessment of Cognition in Schizophrenia (BACS) Japanese version 6.Schizotypal Personality Scale (healthy Group) 7. Self-Rating Depression Scale (healthy Group)

Secondary

MeasureTime frame
4. Comments on tasks 1 to 3 (required time: about 5 minutes) 8. Other questions such as demographic data

Contacts

Public ContactKawasugi Keita

Tokaigakuen University

kawasugi-k@tokaigakuen-u.ac.jp+81-561-36-9708

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026