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Related Experiment Video

Updated: Feb 14, 2026

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

Published on: August 5, 2014

Sleep quality and adolescent default mode network connectivity.

Sarah M Tashjian¹, Diane Goldenberg¹, Martin M Monti^1,2

¹Department of Psychology, University of California, Los Angeles, Los Angeles, CA 90095, USA.

Social Cognitive and Affective Neuroscience

|February 13, 2018

Summary

Adolescent sleep quality, not duration, impacts brain connectivity. Poorer sleep quality in teens is linked to weaker intrinsic connectivity within the default mode network (DMN), affecting cognitive and emotional development.

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Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network

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Published on: December 28, 2010

Area of Science:

Neuroscience
Developmental Psychology
Sleep Science

Background:

Adolescence is a critical period of brain development, marked by significant changes in sleep patterns.
Sleep disturbances during adolescence are associated with academic, emotional, and social challenges.
The default mode network (DMN), crucial for cognition and socioemotional processing, undergoes substantial maturation during adolescence.

Purpose of the Study:

To investigate the relationship between naturalistic variations in adolescent sleep duration and quality with the intrinsic functional connectivity of the default mode network (DMN).
To explore how individual differences in sleep impact brain network development during the crucial adolescent period.

Main Methods:

Utilized resting-state functional connectivity (rs-FC) MRI to assess DMN activity.
Employed actigraphy over 14 days to objectively measure sleep duration and quality in adolescents.
Analyzed data from 45 human participants aged 14-18 years.

Main Results:

Sleep quality, rather than sleep duration, showed a significant association with DMN intrinsic connectivity.
Adolescents reporting poorer sleep quality exhibited weaker intra-network connectivity within the DMN at rest.
These findings highlight sleep quality as a key factor influencing adolescent brain function.

Conclusions:

Sleep quality is a critical, yet understudied, correlate of adolescent brain function, specifically impacting the developing DMN.
Weaker DMN connectivity associated with poor sleep quality may underlie some of the behavioral and emotional difficulties observed in adolescents.
Future research should focus on sleep quality interventions to support healthy adolescent brain development and behavioral maturation.