Network analysis of sensory processing sensitivity, depression and academic difficulties in middle school students

Area of Science:

• Psychology
• Neuroscience
• Developmental Science

Background:

• Sensory processing sensitivity (SPS) is a trait with distinct subdimensions: ease of excitation (EOE), low sensory threshold (LST), and aesthetic sensitivity (AES).
• Prior research suggests divergent neurophysiological and emotional correlates for SPS subdimensions, impacting behavioral inhibition/activation and emotionality.
• Treating SPS as a unitary construct may obscure its heterogeneous links with adolescent depression and academic difficulties.

Purpose of the Study:

• To investigate the differential associations between SPS subdimensions (EOE, LST, AES), depressive symptoms, and academic functioning in adolescents.
• To address inconsistencies in the literature by examining SPS not as a uniform trait but through its distinct components.
• To identify key nodes within the SPS-depression-academic functioning network for potential intervention.

Main Methods:

• Employed network analysis (EBICglasso) to examine associations and centrality among variables in 575 adolescents (aged 12-17).
• Utilized the Highly Sensitive Child Scale, PHQ-8 for depression assessment, and measures of self-reported academic difficulties.
• Applied NodeIdentifyR (Ising model) for simulating potential intervention effects on symptom activation.

Main Results:

• Low mood and fatigue emerged as central nodes connecting SPS subdimensions with academic problems.
• EOE and LST showed positive correlations with depression; EOE was also linked to academic difficulties.
• AES demonstrated a negative association with academic problems and was not significantly related to depression.

Conclusions:

• The distinct roles of SPS subdimensions in adolescent mental health and academic outcomes are highlighted.
• Depressive symptoms, specifically low mood and fatigue, are identified as crucial intervention targets.
• Findings support tailored psychological and educational interventions for highly sensitive adolescents, moving beyond a unitary view of SPS.