1.Investigating Disembodiment-related Brain Activation by Interaction between Perspective-shifting and the Experience of Agency in Autism Spectrum Disorder: A Possible Relationship with Interoceptive Abilities
Ahjeong HUR ; Seungwon CHUNG ; Huiyeong JEON ; Hoyeon LEE ; Yong-Wook SHIN ; Jung-Woo SON
Clinical Psychopharmacology and Neuroscience 2025;23(1):86-99
Objective:
Many studies have explored sense of self in individuals with autism spectrum disorder (ASD); however, few have reported on their experience of “disembodiment.” This study aimed to investigate the differences in brain activity between patients with ASD and neurotypicals (NTs) under conditions causing disembodiment and to examine the correlation between their interoceptive abilities and disembodiment-related brain activity.
Methods:
18 Participants with ASD and 21 NTs completed psychological evaluations, interoceptive abilities measurement, and functional magnetic resonance imaging (fMRI). The fMRI images were taken while the participants performed tasks involving ball-throwing animations. The task focused on either self-agency related to ball-throwing (Agency Task) or the spatial location of a ball (Location Task). The animations were presented from constantly changing perspective (Changing View) or fixed perspective (Fixed View). The disembodiment-related condition was the interaction between the Agency Task and Changing View.
Results:
Participants with ASD exhibited higher activation than NTs in regions near the left parieto-temporo-occipital junction, left precuneus, left hippocampus, and other brain areas. Furthermore, interoceptive accuracy was negatively correlated with the activity of the left superior parietal and posterior midcingulate areas, whereas interoceptive trait prediction error was positively correlated with the activity of the left hippocampus, mid-temporal area, and left posterior cingulate area in participants with ASD.
Conclusion
These results suggest that disembodiment-related brain activation might be easily manifested by the interaction between perspective-shifting and the experience of agency, and that interoceptive abilities might be related to disembodiment-related brain activation in individuals with ASD.
2.Environmental Protective and Risk Factors for Gastric Cancer:An Umbrella Review and Reanalysis of Meta-Analyses
Seungwon KIM ; Min Seo KIM ; Yeongkeun KWON ; Jae-Seok MIN ; Ahmad ALROMI ; Jong Yeob KIM ; Jueon KIM ; Jae Il SHIN ; Dong Keon YON ; Yuhyeon CHU ; Sungsoo PARK
Journal of Gastric Cancer 2025;25(2):285-302
Purpose:
Despite extensive research on gastric cancer (GC), efforts to consolidate the numerous associations between possible factors and GC risk remain lacking. This systematic review aimed to provide an overview of potential GC-associated pairs.
Materials and Methods:
We systematically searched PubMed, Embase, and Cochrane databases, from their inception to April 23, 2022, for eligible systematic reviews and metaanalyses to investigate the association between any possible factors and GC risk. After the inclusion of 75 systematic reviews and meta-analyses, 117 association pairs were examined. We reanalyzed the included meta-analyses and produced effect estimates using uniform analytical models. The certainty of the evidence for each association pair was evaluated using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) criteria.
Results:
Iatrogenic factors, including antibacterial drugs, were associated with an increased risk of GC. Epstein-Barr virus and Helicobacter pylori infections were also associated with an increased risk of GC, while human T-lymphotropic virus type 1 (HTLV-1) infections were associated with a reduced risk. Dietary habit was a major factor influencing moderate to high GRADE associations. Positive associations were observed for heavy alcohol consumption (relative risk [RR], 1.13; 95% confidence interval [CI], 1.06–1.12), refined grain consumption (RR, 1.36; 95% CI, 1.21–1.53), and habitual salt intake (RR, 1.41; 95% CI, 1.04–1.91).
Conclusions
The associations between GC risk and dietary and nutritional factors were considerably heterogeneous, whereas other factors, such as lifestyle and iatrogenic and environmental exposures, were consistent across regions. Therefore, dietary interventions for GC prevention should be tailored specific to regions.
3.Investigating Disembodiment-related Brain Activation by Interaction between Perspective-shifting and the Experience of Agency in Autism Spectrum Disorder: A Possible Relationship with Interoceptive Abilities
Ahjeong HUR ; Seungwon CHUNG ; Huiyeong JEON ; Hoyeon LEE ; Yong-Wook SHIN ; Jung-Woo SON
Clinical Psychopharmacology and Neuroscience 2025;23(1):86-99
Objective:
Many studies have explored sense of self in individuals with autism spectrum disorder (ASD); however, few have reported on their experience of “disembodiment.” This study aimed to investigate the differences in brain activity between patients with ASD and neurotypicals (NTs) under conditions causing disembodiment and to examine the correlation between their interoceptive abilities and disembodiment-related brain activity.
Methods:
18 Participants with ASD and 21 NTs completed psychological evaluations, interoceptive abilities measurement, and functional magnetic resonance imaging (fMRI). The fMRI images were taken while the participants performed tasks involving ball-throwing animations. The task focused on either self-agency related to ball-throwing (Agency Task) or the spatial location of a ball (Location Task). The animations were presented from constantly changing perspective (Changing View) or fixed perspective (Fixed View). The disembodiment-related condition was the interaction between the Agency Task and Changing View.
Results:
Participants with ASD exhibited higher activation than NTs in regions near the left parieto-temporo-occipital junction, left precuneus, left hippocampus, and other brain areas. Furthermore, interoceptive accuracy was negatively correlated with the activity of the left superior parietal and posterior midcingulate areas, whereas interoceptive trait prediction error was positively correlated with the activity of the left hippocampus, mid-temporal area, and left posterior cingulate area in participants with ASD.
Conclusion
These results suggest that disembodiment-related brain activation might be easily manifested by the interaction between perspective-shifting and the experience of agency, and that interoceptive abilities might be related to disembodiment-related brain activation in individuals with ASD.
4.Investigating Disembodiment-related Brain Activation by Interaction between Perspective-shifting and the Experience of Agency in Autism Spectrum Disorder: A Possible Relationship with Interoceptive Abilities
Ahjeong HUR ; Seungwon CHUNG ; Huiyeong JEON ; Hoyeon LEE ; Yong-Wook SHIN ; Jung-Woo SON
Clinical Psychopharmacology and Neuroscience 2025;23(1):86-99
Objective:
Many studies have explored sense of self in individuals with autism spectrum disorder (ASD); however, few have reported on their experience of “disembodiment.” This study aimed to investigate the differences in brain activity between patients with ASD and neurotypicals (NTs) under conditions causing disembodiment and to examine the correlation between their interoceptive abilities and disembodiment-related brain activity.
Methods:
18 Participants with ASD and 21 NTs completed psychological evaluations, interoceptive abilities measurement, and functional magnetic resonance imaging (fMRI). The fMRI images were taken while the participants performed tasks involving ball-throwing animations. The task focused on either self-agency related to ball-throwing (Agency Task) or the spatial location of a ball (Location Task). The animations were presented from constantly changing perspective (Changing View) or fixed perspective (Fixed View). The disembodiment-related condition was the interaction between the Agency Task and Changing View.
Results:
Participants with ASD exhibited higher activation than NTs in regions near the left parieto-temporo-occipital junction, left precuneus, left hippocampus, and other brain areas. Furthermore, interoceptive accuracy was negatively correlated with the activity of the left superior parietal and posterior midcingulate areas, whereas interoceptive trait prediction error was positively correlated with the activity of the left hippocampus, mid-temporal area, and left posterior cingulate area in participants with ASD.
Conclusion
These results suggest that disembodiment-related brain activation might be easily manifested by the interaction between perspective-shifting and the experience of agency, and that interoceptive abilities might be related to disembodiment-related brain activation in individuals with ASD.
5.Environmental Protective and Risk Factors for Gastric Cancer:An Umbrella Review and Reanalysis of Meta-Analyses
Seungwon KIM ; Min Seo KIM ; Yeongkeun KWON ; Jae-Seok MIN ; Ahmad ALROMI ; Jong Yeob KIM ; Jueon KIM ; Jae Il SHIN ; Dong Keon YON ; Yuhyeon CHU ; Sungsoo PARK
Journal of Gastric Cancer 2025;25(2):285-302
Purpose:
Despite extensive research on gastric cancer (GC), efforts to consolidate the numerous associations between possible factors and GC risk remain lacking. This systematic review aimed to provide an overview of potential GC-associated pairs.
Materials and Methods:
We systematically searched PubMed, Embase, and Cochrane databases, from their inception to April 23, 2022, for eligible systematic reviews and metaanalyses to investigate the association between any possible factors and GC risk. After the inclusion of 75 systematic reviews and meta-analyses, 117 association pairs were examined. We reanalyzed the included meta-analyses and produced effect estimates using uniform analytical models. The certainty of the evidence for each association pair was evaluated using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) criteria.
Results:
Iatrogenic factors, including antibacterial drugs, were associated with an increased risk of GC. Epstein-Barr virus and Helicobacter pylori infections were also associated with an increased risk of GC, while human T-lymphotropic virus type 1 (HTLV-1) infections were associated with a reduced risk. Dietary habit was a major factor influencing moderate to high GRADE associations. Positive associations were observed for heavy alcohol consumption (relative risk [RR], 1.13; 95% confidence interval [CI], 1.06–1.12), refined grain consumption (RR, 1.36; 95% CI, 1.21–1.53), and habitual salt intake (RR, 1.41; 95% CI, 1.04–1.91).
Conclusions
The associations between GC risk and dietary and nutritional factors were considerably heterogeneous, whereas other factors, such as lifestyle and iatrogenic and environmental exposures, were consistent across regions. Therefore, dietary interventions for GC prevention should be tailored specific to regions.
6.Investigating Disembodiment-related Brain Activation by Interaction between Perspective-shifting and the Experience of Agency in Autism Spectrum Disorder: A Possible Relationship with Interoceptive Abilities
Ahjeong HUR ; Seungwon CHUNG ; Huiyeong JEON ; Hoyeon LEE ; Yong-Wook SHIN ; Jung-Woo SON
Clinical Psychopharmacology and Neuroscience 2025;23(1):86-99
Objective:
Many studies have explored sense of self in individuals with autism spectrum disorder (ASD); however, few have reported on their experience of “disembodiment.” This study aimed to investigate the differences in brain activity between patients with ASD and neurotypicals (NTs) under conditions causing disembodiment and to examine the correlation between their interoceptive abilities and disembodiment-related brain activity.
Methods:
18 Participants with ASD and 21 NTs completed psychological evaluations, interoceptive abilities measurement, and functional magnetic resonance imaging (fMRI). The fMRI images were taken while the participants performed tasks involving ball-throwing animations. The task focused on either self-agency related to ball-throwing (Agency Task) or the spatial location of a ball (Location Task). The animations were presented from constantly changing perspective (Changing View) or fixed perspective (Fixed View). The disembodiment-related condition was the interaction between the Agency Task and Changing View.
Results:
Participants with ASD exhibited higher activation than NTs in regions near the left parieto-temporo-occipital junction, left precuneus, left hippocampus, and other brain areas. Furthermore, interoceptive accuracy was negatively correlated with the activity of the left superior parietal and posterior midcingulate areas, whereas interoceptive trait prediction error was positively correlated with the activity of the left hippocampus, mid-temporal area, and left posterior cingulate area in participants with ASD.
Conclusion
These results suggest that disembodiment-related brain activation might be easily manifested by the interaction between perspective-shifting and the experience of agency, and that interoceptive abilities might be related to disembodiment-related brain activation in individuals with ASD.
7.Environmental Protective and Risk Factors for Gastric Cancer:An Umbrella Review and Reanalysis of Meta-Analyses
Seungwon KIM ; Min Seo KIM ; Yeongkeun KWON ; Jae-Seok MIN ; Ahmad ALROMI ; Jong Yeob KIM ; Jueon KIM ; Jae Il SHIN ; Dong Keon YON ; Yuhyeon CHU ; Sungsoo PARK
Journal of Gastric Cancer 2025;25(2):285-302
Purpose:
Despite extensive research on gastric cancer (GC), efforts to consolidate the numerous associations between possible factors and GC risk remain lacking. This systematic review aimed to provide an overview of potential GC-associated pairs.
Materials and Methods:
We systematically searched PubMed, Embase, and Cochrane databases, from their inception to April 23, 2022, for eligible systematic reviews and metaanalyses to investigate the association between any possible factors and GC risk. After the inclusion of 75 systematic reviews and meta-analyses, 117 association pairs were examined. We reanalyzed the included meta-analyses and produced effect estimates using uniform analytical models. The certainty of the evidence for each association pair was evaluated using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) criteria.
Results:
Iatrogenic factors, including antibacterial drugs, were associated with an increased risk of GC. Epstein-Barr virus and Helicobacter pylori infections were also associated with an increased risk of GC, while human T-lymphotropic virus type 1 (HTLV-1) infections were associated with a reduced risk. Dietary habit was a major factor influencing moderate to high GRADE associations. Positive associations were observed for heavy alcohol consumption (relative risk [RR], 1.13; 95% confidence interval [CI], 1.06–1.12), refined grain consumption (RR, 1.36; 95% CI, 1.21–1.53), and habitual salt intake (RR, 1.41; 95% CI, 1.04–1.91).
Conclusions
The associations between GC risk and dietary and nutritional factors were considerably heterogeneous, whereas other factors, such as lifestyle and iatrogenic and environmental exposures, were consistent across regions. Therefore, dietary interventions for GC prevention should be tailored specific to regions.
8.Localized Upper Back Pain: A Rare Variant of Restless Legs Syndrome
Seungwon SONG ; Namoh KIM ; Yong Woo SHIN ; Ki-Young JUNG
Journal of Sleep Medicine 2024;21(2):123-125
Restless legs syndrome (RLS) is a chronic sensory-motor neuron disorder characterized by an urge to move the legs, accompanied by abnormal sensations and pain that occur during sitting and resting periods but are relieved by movement. Although RLS typically affects the lower limbs, cases of localized sensation in the chest, lower back, abdomen, arm, and perineum have also been reported. To date, only one documented case of RLS localized to the upper back has been reported. In this report, we present a rare variant of RLS that manifests as symptoms localized in the upper back.
9.Effectiveness Analysis of School-Based Self-Harm Prevention Program for Children and Adolescent Using Brief Dialectical Behavior Therapy Skills Training: Based on Age, Sex, Self-Harm History and Program Implementation Methods
Je Jung LEE ; Cheolgyu SHIN ; Hyunjeong KIM ; Sunkyu PARK ; Inyoung NOH ; Jonggook LEE ; Keun OH ; Heeyoung SEO ; Seungwon CHUNG
Korean Journal of Psychosomatic Medicine 2024;32(2):87-97
Objectives:
:This study aims to confirm the effectiveness of a school-based very-short-term dialectical be-havior therapy-skills training (DBT-ST) program for preventing self-harm among children and adolescents, considering factors such as age, sex, self-harm history, and methods of program implementation.
Methods:
:The study was conducted from September 2021 to December 2023, targeting 1,012 elementary and middle school students in the Chungcheong region. Changes in responses to the Depressed Mood Questionnaire(RDQ), the Difficulties in Emotion Regulation Scale-16 (DERS-16), ‘future self-harm possibility’ scores wereanalyzed and compared before and after the program, based on age, sex, self-harm history, and methods of program implementation.
Results:
:Overall, participants showed a decrease in the ‘rumination(RDQ) scale’ (t=10.49, p<0.001), ‘reversescored distraction (RDQ)’ (t=10.67, p<0.001) and the total DERS-16 (t=5.56, p<0.001) as well as a decrease in ‘future self-harm possibility’ score (t=4.26, p<0.001). Both elementary and middle school students showed decrease in ’rumination (RDQ)’ and distraction (RDQ), but only middle school students showed a decrease in theDERS-16 and most sub-scales. Regardless of sex, self-harm history, or methods of program implementation, adecrease in ’rumination (RDQ)’, distraction (RDQ) and the total DERS-16 scale and most sub-scales decreased.
Conclusions
:Our program appears to be effective as a primary prevention program for preventing self-harm among children and adolescents in a school setting.
10.Effectiveness Analysis of School-Based Self-Harm Prevention Program for Children and Adolescent Using Brief Dialectical Behavior Therapy Skills Training: Based on Age, Sex, Self-Harm History and Program Implementation Methods
Je Jung LEE ; Cheolgyu SHIN ; Hyunjeong KIM ; Sunkyu PARK ; Inyoung NOH ; Jonggook LEE ; Keun OH ; Heeyoung SEO ; Seungwon CHUNG
Korean Journal of Psychosomatic Medicine 2024;32(2):87-97
Objectives:
:This study aims to confirm the effectiveness of a school-based very-short-term dialectical be-havior therapy-skills training (DBT-ST) program for preventing self-harm among children and adolescents, considering factors such as age, sex, self-harm history, and methods of program implementation.
Methods:
:The study was conducted from September 2021 to December 2023, targeting 1,012 elementary and middle school students in the Chungcheong region. Changes in responses to the Depressed Mood Questionnaire(RDQ), the Difficulties in Emotion Regulation Scale-16 (DERS-16), ‘future self-harm possibility’ scores wereanalyzed and compared before and after the program, based on age, sex, self-harm history, and methods of program implementation.
Results:
:Overall, participants showed a decrease in the ‘rumination(RDQ) scale’ (t=10.49, p<0.001), ‘reversescored distraction (RDQ)’ (t=10.67, p<0.001) and the total DERS-16 (t=5.56, p<0.001) as well as a decrease in ‘future self-harm possibility’ score (t=4.26, p<0.001). Both elementary and middle school students showed decrease in ’rumination (RDQ)’ and distraction (RDQ), but only middle school students showed a decrease in theDERS-16 and most sub-scales. Regardless of sex, self-harm history, or methods of program implementation, adecrease in ’rumination (RDQ)’, distraction (RDQ) and the total DERS-16 scale and most sub-scales decreased.
Conclusions
:Our program appears to be effective as a primary prevention program for preventing self-harm among children and adolescents in a school setting.

Result Analysis
Print
Save
E-mail