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JAPANESE
JRCT ID: jRCT1060250094

Registered date:20/02/2026

A Study on Differences in Emotional Expression Between Video Call and Face-to-Face Nursing Interviews in People with Schizophrenia

Basic Information

Recruitment status Pending
Health condition(s) or Problem(s) studiedSchizophrenia, Schizoaffective Disorder
Date of first enrollment20/02/2026
Target sample size10
Countries of recruitment
Study typeOther
Intervention(s)It observes and compares facial expression data during identical nursing interviews conducted under two communication conditions: video-mediated and face-to-face.

Outcome(s)

Primary OutcomeDifferences in dimensional indicators (valence and arousal) measured by facial expression analysis software (FaceReader) between VMC and FTF conditions (VMC effect). For each indicator, the overall intensity mean throughout the interview and the event-based intensity mean (defined as FaceReader score 0.26 or above) are estimated using Bayesian analysis, with 95% credible intervals calculated at both individual and group levels.
Secondary Outcome(1) VMC effect on categorical indicators (six basic emotion scores: happiness, sadness, fear, anger, disgust, and surprise) measured by FaceReader, estimated using Bayesian analysis with 95% credible intervals. (2) Frequency and duration of emotional expression events per condition, reported as descriptive statistics (median, interquartile range). (3) Participants' subjective experiences related to differences in emotional expression between VMC and FTF conditions, explored through semi-structured interviews and analyzed using thematic analysis.

Key inclusion & exclusion criteria

Age minimum>= 18age old
Age maximumNot applicable
GenderBoth
Include criteria- Individuals who have been diagnosed with schizophrenia or schizoaffective disorder according to DSM-5 or ICD-11 diagnostic criteria and have been informed of their diagnosis. - Individuals who are currently using visiting nursing services or are considered likely to use such services in the future for the above diagnosis. - Individuals who are 18 years of age or older at the time of consent. - Individuals who have been determined by the facility manager and the responsible public health nurse or nurse to be eligible to participate in this study. - Individuals who have understood and agreed to the research questions and objectives of this study.
Exclude criteria-Individuals with a history of substance abuse. -Individuals who have been diagnosed with intellectual disability or dementia.

Related Information

Contact

Public contact
Name Daisuke Komatsubara
Address 2751-1 Ike, Kochi-shi, Kochi, Japan Kouchi Japan 781-0111
Telephone +81-88-847-8700
E-mail komatsubara_daisuke@cc.u-kochi.ac.jp
Affiliation University of Kochi
Scientific contact
Name Daisuke Komatsubara
Address 2751-1 Ike, Kochi-shi, Kochi, Japan Kouchi Japan 781-0111
Telephone +81-88-847-8700
E-mail komatsubara_daisuke@cc.u-kochi.ac.jp
Affiliation University of Kochi