A study on the characteristics of body-searching movements in patients with personal neglect following stroke

Characteristics of body exploration behavior in post-stroke personal neglect: an investigation using the Fluff Test - Body Exploration in Personal Neglect: Fluff Test Study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000061072

Enrollment

Registered

2026-04-01

Start date

2026-04-01

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

Personal Neglect

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Key inclusion criteria Aged 18 years or older First-ever right hemisphere stroke (ischemic or hemorrhagic) Impairment in at least one of the following confirmed by neurological assessment: motor function, language, attention, or praxis Sufficient arousal and attention to perform the task Asymptomatic lacunar infarcts permitted up to 2 lesions with a diameter of <=15 mm each (recorded and considered during analysis) Supplementary note This study primarily targets patients with right hemisphere lesions; however, patients with left hemisphere lesions will also be included in the recording and analysis if personal neglect is confirmed.

Exclusion criteria

Exclusion criteria: Key exclusion criteria Prior clinical stroke, multiple or large lacunar infarcts History of head trauma Difficulty performing the task or maintaining adequate arousal Other severe neurological, psychiatric, or medical conditions Clinically suspected dementia with difficulty following instructions (MMSE <=21 as a guide; however, patients are not uniformly excluded solely due to aphasia or attentional impairment) Severe illness with a prognosis of less than 1 year Contraindications to MRI (e.g., claustrophobia, metallic foreign bodies) Severe visual field deficits (homonymous hemianopia and quadrantanopia are included but recorded)

Design outcomes

Primary

Measure	Time frame
[1] Laterality Index by video analysis (LI-video): asymmetry index based on the number of reaches toward the right vs. left body side, derived from markerless video analysis (MediaPipe + OpenCV) during the Fluff Test. [2] Laterality Index by IMU (LI-IMU): asymmetry index based on the ratio of dwell time in leftward vs. rightward head rotation (Yaw angle), measured by XSens MTw sensor during the Fluff Test.	—

Measure

Time frame

[1] Laterality Index by video analysis (LI-video): asymmetry index based on the number of reaches toward the right vs. left body side, derived from markerless video analysis (MediaPipe + OpenCV) during the Fluff Test. [2] Laterality Index by IMU (LI-IMU): asymmetry index based on the ratio of dwell time in leftward vs. rightward head rotation (Yaw angle), measured by XSens MTw sensor during the Fluff Test.

—

Secondary

Measure	Time frame
1. First-reach latency to the left body side 2. Reciprocation count 3. Centroid slope of exploration trajectory 4. Correlations with clinical assessments: Catherine Bergego Scale (CBS) body subscale, Comb and Razor Test, neuropsychological tests	—

Countries

Japan

Contacts

Public ContactKouku Nishimaki

Kamata Rehabilitation Hospital Department of Rehabilitation

kuukokimashini9771@gmail.com03-5767-7100

Outcome results