TY  - JOUR
AU  - Chan, Kai Tai
AU  - Hui, Christy LM
AU  - Cheung, Charlton
AU  - Suen, Yi Nam
AU  - Wong, Stephanie Ming Yin
AU  - Wong, Corine SM
AU  - Kam, Bosco PH
AU  - Chen, Eric Yu Hai
PY  - 2025
DA  - 2025/1/31
TI  - Exploring the Differentiation of Self-Concepts in the Physical and Virtual Worlds Using Euclidean Distance Analysis and Its Relationship With Digitalization and Mental Health Among Young People: Cross-Sectional Study
JO  - JMIR Ment Health
SP  - e60747
VL  - 12
KW  - digitalization
KW  - self
KW  - identity
KW  - psychiatric symptomatology
KW  - youth mental health
KW  - Euclidean distance analysis
KW  - self-differentiation
KW  - smartphone addiction
KW  - personal attributes
AB  - Background: Increasing observation and evidence suggest that the process of digitalization could have profound impact to the development of human mind and self, with potential mental health consequences. Self-differentiation is important in human identity and self-concept formation, which is believed to be involved in the process of digitalization. Objective: This study aimed to investigate the relationship between digitalization and personal attributes in the actual selves in the physical and virtual worlds. Methods: A community cohort of 397 participants aged 15 to 24 years old was recruited consecutively over about 3 months. Assessment was conducted upon the indicators of digitalization (smartphone use time, leisure online time, and age of first smartphone ownership), smartphone addiction, 14 selected personal attributes in the actual selves in the physical and virtual worlds, psychiatric symptomatology and personality traits. Euclidean distance analysis between the personal attributes in the actual selves in the physical and virtual worlds for the similarities of the 2 selves was performed in the analysis. Results: The current primary findings are the negative correlations between the similarity of the personal attributes in the physical actual self and virtual actual self, and smartphone use time, smartphone addiction as well as anxiety symptomatology respectively (P<.05 to P<.01). Conclusions: The current findings provide empirical evidence for the importance of maintaining a congruent self across the physical and virtual worlds, regulating smartphone use time, preventing smartphone addiction, and safeguarding mental health. 
SN  - 2368-7959
UR  - https://mental.jmir.org/2025/1/e60747
UR  - https://doi.org/10.2196/60747
DO  - 10.2196/60747
ID  - info:doi/10.2196/60747
ER  -