Related Experiment Video
Updated: Jun 17, 2026

Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network
Published on: December 28, 2010
Story, Daydreams, and the Default Mode Network
1Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, New York, New York.
Abstract:
When Freud invented/discovered psychoanalysis, he devised not just a theory of mind but also a tool that enabled him to observe the "mind." And with the tool of psychoanalysis, he was able to observe the workings of the default mode network (DMN) some hundred years before anyone knew of its existence. Since then, various operations of the DMN have been identified. One is the integration of perception into memory through the process of functional connectivity. In posttraumatic stress disorder (PTSD) there is significant pathology in functional connectivity involving multiple brain networks-especially the DMN and the intrinsic alarm system. This article addresses the causes and consequences of this pathophysiology as it relates to the sense of time, safety, and story in PTSD.
More Related Videos
12:09Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy
Published on: August 5, 2014
10:43Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
Published on: July 1, 2014
Related Concept Videos
Dreaming
Lucid Dreaming
Studies have shown...
High-Level and Low-Level Awareness
Nightmares and Night Terrors
Nightmares often...
Sleep-Wake Cycles
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Sleepwalking and Sleep Talking
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...