Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Post-traumatic Stress Disorder01:27

Post-traumatic Stress Disorder

76
Post-traumatic stress disorder (PTSD) is a psychiatric condition that arises following exposure to traumatic events such as natural disasters, forced displacement, or severe accidents. It significantly impairs individuals' ability to cope with daily activities and disrupts their emotional and psychological equilibrium.
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
76
Brain Imaging01:14

Brain Imaging

265
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
265

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Rebuilding academic psychiatry in the UK: why the Royal College of Psychiatrists' Academic Strategy matters for the future of psychiatry.

The British journal of psychiatry : the journal of mental science·2026
Same author

What is a clinical trial? A proposal for expanding the WHO definition of a clinical trial for use in mental health research.

The British journal of psychiatry : the journal of mental science·2026
Same author

Progress, Advances and Challenges in Bipolar Disorder.

Alpha psychiatry·2026
Same author

Shared and specific associations of amygdala nuclei volumes with PTSD symptom domains and childhood trauma: An ENIGMA-PGC PTSD mega-analysis.

Molecular psychiatry·2026
Same author

Mesenchymal-derived neural progenitors underlie local <i>insulin</i> production and neuronal transdifferentiation during retina regeneration.

bioRxiv : the preprint server for biology·2026
Same author

Mental health of internally displaced persons: a meta-analysis.

BMJ global health·2026

Related Experiment Video

Updated: Jul 27, 2025

Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
10:43

Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity

Published on: July 1, 2014

15.2K

Refugee visa insecurity disrupts the brain's default mode network.

Belinda J Liddell1, Pritha Das2,3,4, Gin S Malhi2,3,4

  • 1School of Psychology, UNSW Sydney, Sydney, Australia.

European Journal of Psychotraumatology
|June 8, 2023
PubMed
Summary

Refugee visa insecurity disrupts brain networks crucial for self-perception and future thinking. This neural impact, observed in the default mode network (DMN), correlates with deportation fears and a sense of living in limbo.

Keywords:
RMf en estado de reposoRefugeeRefugiadodefault mode networkestado temporalincertidumbreinseguridad de visamental simulationred de modo predeterminadoresting state fMRIselfsi mismosimulación mentaltemporary statustraumauncertaintyvisa insecurity不确定性临时状态创伤心理模拟签证不安全自我难民静息态 fMRI默认模式网络

More Related Videos

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy
12:09

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

Published on: August 5, 2014

18.1K
Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network
11:02

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

Published on: December 28, 2010

13.0K

Related Experiment Videos

Last Updated: Jul 27, 2025

Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
10:43

Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity

Published on: July 1, 2014

15.2K
Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy
12:09

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

Published on: August 5, 2014

18.1K
Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network
11:02

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

Published on: December 28, 2010

13.0K

Area of Science:

  • Neuroscience
  • Psychology
  • Sociology

Background:

  • Refugee trauma research often overlooks the psychological impact of visa insecurity.
  • Uncertainty about the future due to visa status affects refugees' psychological functioning and self-determination.

Purpose of the Study:

  • To investigate the effects of refugee visa insecurity on functional brain activity.
  • To identify neural correlates of living with an uncertain future for refugees.

Main Methods:

  • fMRI was used to measure resting-state brain activity in refugees with insecure vs. secure visas.
  • Independent components analysis and dynamic functional causal modelling were employed to analyze network connectivity.

Main Results:

  • Visa insecurity was associated with altered activity in the default mode network (DMN), particularly its anterior and posterior midline hubs.
  • The insecure visa group showed reduced DMN spectral power and activity, with negative coupling between DMN hubs correlating with deportation fears.

Conclusions:

  • Visa insecurity may disrupt the synchrony within the DMN, impacting self-construction and future mental simulations.
  • This disruption could represent a neural signature of the 'limbo' state experienced by refugees with insecure visa status.