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Latent class analysis on internet and smartphone addiction in college students
- J. Mok, S. Choi, +5 authors Won-Young Song
- MedicineNeuropsychiatric disease and treatment
- 20 May 2014
This study identified three distinct internet and smartphone user groups in each sex based on addiction severity levels and how the classified groups differed in terms of sex and psychosocial traits was examined.
Weight management program for treatment-emergent weight gain in olanzapine-treated patients with schizophrenia or schizoaffective disorder: A 12-week randomized controlled clinical trial.
- J. Kwon, Jung-Seok Choi, +5 authors Chang Geun Oh
- MedicineThe Journal of clinical psychiatry
- 15 April 2006
The weight management program was effective in terms of weight reduction in patients with schizophrenia or schizoaffective disorder taking olanzapine and was also found to be safe in Terms of psychiatric symptoms, vital signs, and laboratory data.
Voxel-Based Morphometry Study of Gray Matter Abnormalities in Obsessive-Compulsive Disorder
Findings indicate that the frontal-subcortical circuitry is dysfunctional in OCD, and suggest that the parietal cortex may play a role in the pathophysiology of this disease.
Similarities and differences among Internet gaming disorder, gambling disorder and alcohol use disorder: A focus on impulsivity and compulsivity
- S. Choi, Hyun Soo Kim, +7 authors D. Kim
- Psychology, MedicineJournal of behavioral addictions
- 1 December 2014
Findings may aid in the understanding of not only the differences in categorical aspects between individuals with IGD and GD but also in impulsivity–compulsivity dimensional domains.
Impulsivity in Internet Addiction: A Comparison with Pathological Gambling
- Haewoo Lee, Jung-Seok Choi, Y. Shin, Jun-Young Lee, Hee-Yeon Jung, J. Kwon
- Medicine, PsychologyCyberpsychology Behav. Soc. Netw.
- 1 July 2012
The results show that those suffering from Internet addiction showed increased levels of trait impulsivity which were comparable to those of patients diagnosed with pathological gambling, and that traits impulsivity is a marker for vulnerability to Internet addiction.
Cortical thickness reduction in individuals at ultra-high-risk for psychosis.
It is suggested that UHR is associated with cortical thinning in regions that correspond to the structural abnormalities found in schizophrenia, which might reflect functional decline at the prodromal stage of schizophrenia, and there may be progressive thinning of GM cortex over time.
Altered resting-state connectivity in subjects at ultra-high risk for psychosis: an fMRI study
- G. Shim, Jungsu S. Oh, +7 authors J. Kwon
- Psychology, MedicineBehavioral and Brain Functions
- 11 October 2010
Findings suggest that abnormal resting-state network activity may be related with the clinical features of UHR subjects, and neurodevelopmental and anatomical alterations of cortical midline structure might underlie altered intrinsic networks in U HR subjects.
Reduced prefrontal functional connectivity in the default mode network is related to greater psychopathology in subjects with high genetic loading for schizophrenia
This study suggests significant abnormalities in the DMN of subjects at GHR of schizophrenia may reflect psychopathologies such as an inability to allocate resources properly between internal thoughts and external stimuli.
Characteristics and Psychiatric Symptoms of Internet Gaming Disorder among Adults Using Self-Reported DSM-5 Criteria
The IGD risk group showed differential psychopathological manifestations according to DSM-5 IGD diagnostic criteria, especially for developing screening instruments.
Phase-specific brain change of spatial working memory processing in genetic and ultra-high risk groups of schizophrenia.
- Jung-Seok Choi, Jiyoung Park, +7 authors J. Kwon
- Psychology, MedicineSchizophrenia bulletin
- 1 November 2012
It is suggested that functional deficits associated with spatial WM processing emerge in the UHR before the onset of schizophrenia and compensatory neural processes exist in the GHR with genetic liability to schizophrenia.