Altered Functional Connectivity of the Salience Network in Problematic Smartphone Users

Area of Science:

• Neuroscience
• Neuroimaging
• Psychiatry

Background:

• Smartphones offer daily convenience but can lead to adverse effects with excessive use.
• Problematic smartphone use (PSU) is a growing concern with potential neurobiological underpinnings.
• Understanding these alterations is crucial for addressing behavioral issues related to technology addiction.

Purpose of the Study:

• To investigate the neurobiological alterations associated with problematic smartphone use.
• To examine functional connectivity (FC) patterns in key brain networks among individuals with PSU.
• To identify specific network changes linked to excessive smartphone engagement.

Main Methods:

• Resting-state seed-based functional connectivity (FC) analysis was employed.
• Participants included 44 individuals with problematic smartphone use and 54 healthy controls.
• FC was assessed across the salience network, central executive network, default mode network, and affective network.

Main Results:

• Problematic smartphone users exhibited enhanced FC within the salience network compared to controls.
• Increased FC was observed between the salience and default mode networks in the PSU group.
• Decreased FC was found between the salience and central executive networks in individuals with PSU.

Conclusions:

• Problematic smartphone use is associated with aberrant functional connectivity in critical brain networks.
• Altered FC patterns, particularly within and between the salience, default mode, and central executive networks, may underlie PSU.
• These findings highlight the salience network as a potential key player in the neurobiology of problematic smartphone use.