| Title:
|
EEG oscillations in recent suicide attempters: Assessing responses to positive and negative future imagination tasks
|
| Author(s):
|
1
|
| Subject:
|
Clinical Applications of Brain Mappin
|
|
|
|
Presenter Author:
|
|
| Name:
|
Masoumeh Bayat
|
|
|
|
Author:
|
|
| Name 1:
|
Masoumeh Bayat - Corresponding - Presenter
|
| Affiliation 1:
|
Mental Health Research Center, Iran University of Medical Sciences, Tehran, Iran
|
|
|
| Name 2:
|
|
| Affiliation 2:
|
|
|
|
| Name 3:
|
|
| Affiliation 3:
|
|
|
|
| Name 4:
|
|
| Affiliation 4:
|
|
|
|
| Name 5:
|
|
| Affiliation 5:
|
|
|
|
| Name 6:
|
|
| Affiliation 6:
|
|
|
|
| Name 7:
|
|
| Affiliation 7:
|
|
|
|
| Name 8:
|
|
| Affiliation 8:
|
|
|
|
| Name 9:
|
|
| Affiliation 9:
|
|
|
|
| Name 10:
|
|
| Affiliation 10:
|
|
|
|
Abstract
|
Original Research
|
|
introduction :
|
Our goal is to uncover Electroencephalography (EEG) power spectrum patterns during imagination
tasks in individuals who attempted suicide within the past 1–4 weeks, addressing gaps in understanding the
neural correlates of future imagination in suicidal behavior.
|
|
Methods:
|
This case-control study comprised a total of 60 participants, consisting of 47 females and 13 males. The
sample comprised three groups: Attempted Suicide + Major Depressive Disorder (SA+MDD), Major Depressive
Disorder (MDD), and Healthy Controls (HC). To assess participants’ future imagination, a unique approach called
the Positive and Negative Future Imagination Task was designed, which involved scenario visualization concurrent
with EEG recording. Statistical analyses included ANOVA with post-hoc pairwise comparisons to
compare EEG power spectrum between three groups.
|
|
Results:
|
It was observed that the SA+MDD group experienced significantly increased theta frequency band in the
right frontocentral regions when compared to the MDD group during both positive and negative imagination
tasks (P-value < 0.05). Furthermore, increased gamma activity was observed in the SA+MDD group compared to
the HC group, predominantly in the right frontocentral areas during both imagination tasks.
|
|
Conclusion:
|
The results of this study indicate that individuals who have recently attempted suicide exhibit
heightened neural activity in the frontocentral regions of the right hemisphere of the brain, specifically in theta
and gamma band frequencies, when contemplating both positive and negative aspects of the future. These
findings, in the context of behavioral tasks may indicate a decrease in the ability to envision a positive future and
an increase in visualizing a negative future.
|
| Attachment:
|
|
| Keywords:
|
Suicide attempt Electroencephalographic (EEG) Future thinking Hopelessness Major depressive disorder
|
| Key message:
|
|
| Do you want your abstract to be indexed, if this is selected as one of the top 100
articles?
|
