Examining factors which cause impaired verb production in agrammatism and its relationship to agrammatism.

Examining factors which cause impaired verb production in agrammatism and its relationship to agrammatism. - Examining factors which cause impaired verb production in agrammatism and its relationship to agrammatism.

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000052164

Enrollment

Registered

2023-09-20

Start date

2023-10-03

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

aphasia caused by stroke

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Aphasia group 1. Broca's area is damaged due to stroke 2. More than 1 month has passed since the stroke 3. AQ of 50-90 on the WAB aphasia test 4. Verbal Production is impaired in comparison to comprehension, and with grammatical impairment. Non aphasia group 5. Patients without the left cerebral hemisphere damage due to cerebrovascular disease 6. Patients do not have aphasia.

Exclusion criteria

Exclusion criteria: 1. Has a history of other strokes in the past 2. Clearly impaired intellectual function 3. Difficulty in recognizing pictures due to agnosia or poor vision 4. Difficulty in understanding auditory instruction due to severe hearing loss 5. Minors 6. Persons presenting depression, head injury, degenerative disease, or brain tumor 7. Persons who are deemed unsuitable by the doctor

Design outcomes

Primary

Measure	Time frame
verb expression and accuracy of grammaticality judgment	—

Countries

Japan

Contacts

Public ContactNobuhiro Takatsu

Tokyo Bay Rehabilitation Hospital Department of rehabilitation

lang-nobu@gmail.com047-453-9000

Outcome results