Alan Teo

Associate Professor

  • 1172 Citations
  • 19 h-Index
20072020

Research output per year

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Research Output

2020

Defining pathological social withdrawal: proposed diagnostic criteria for hikikomori

Kato, T. A., Kanba, S. & Teo, A. R., Feb 1 2020, In : World Psychiatry. 19, 1, p. 116-117 2 p.

Research output: Contribution to journalLetter

Open Access
1 Scopus citations

Family Features of Social Withdrawal Syndrome (Hikikomori)

Malagón-Amor, Á., Martín-López, L. M., Córcoles, D., González, A., Bellsolà, M., Teo, A. R., Bulbena, A., Pérez, V. & Bergé, D., Mar 2 2020, In : Frontiers in Psychiatry. 11, 138.

Research output: Contribution to journalArticle

Open Access

The Importance of “Being There”: a Qualitative Study of What Veterans with Depression Want in Social Support

Teo, A. R., Marsh, H. E., Ono, S. S., Nicolaidis, C., Saha, S. & Dobscha, S. K., Jan 1 2020, (Accepted/In press) In : Journal of general internal medicine.

Research output: Contribution to journalArticle

1 Scopus citations
2019

Development and validation of the 22-item Tarumi's Modern-Type Depression Trait Scale: Avoidance of Social Roles, Complaint, and Low Self-Esteem (TACS-22)

Kato, T. A., Katsuki, R., Kubo, H., Shimokawa, N., Sato-Kasai, M., Hayakawa, K., Kuwano, N., Umene-Nakano, W., Tateno, M., Setoyama, D., Kang, D., Watabe, M., Sakamoto, S., Teo, A. & Kanba, S., Jan 1 2019, In : Psychiatry and Clinical Neurosciences.

Research output: Contribution to journalArticle

Open Access
4 Scopus citations

Evaluation of the Safety and Design of Community Internet Resources for Veteran Suicide Prevention

Chen, J. I., Mastarone, G. L., Ambrosino, S. A., Anzalone, N., Carlson, K. F., Dobscha, S. K. & Teo, A. R., Jan 1 2019, In : Crisis. 40, 5, p. 347-354 8 p.

Research output: Contribution to journalArticle

1 Scopus citations

Exploring the extent of the hikikomori phenomenon on twitter: Mixed methods study of western language tweets

Pereira-Sanchez, V., Alvarez-Mon, M. A., Del Barco, A. A., Alvarez-Mon, M. & Teo, A., May 2019, In : Journal of medical Internet research. 21, 5, e14167.

Research output: Contribution to journalArticle

Open Access
3 Scopus citations

Frequency of social contact in-person vs. on Facebook: An examination of associations with psychiatric symptoms in military veterans

Teo, A. R., Chan, B. K., Saha, S. & Nicolaidis, C., Jan 15 2019, In : Journal of Affective Disorders. 243, p. 375-380 6 p.

Research output: Contribution to journalArticle

3 Scopus citations

Hikikomori : Multidimensional understanding, assessment, and future international perspectives

Kato, T. A., Kanba, S. & Teo, A. R., Jan 1 2019, In : Psychiatry and Clinical Neurosciences. 73, 8, p. 427-440 14 p.

Research output: Contribution to journalReview article

Open Access
8 Scopus citations

Internet addiction, smartphone addiction, and hikikomori trait in Japanese young adult: Social isolation and social network

Tateno, M., Teo, A. R., Ukai, W., Kanazawa, J., Katsuki, R., Kubo, H. & Kato, T. A., Jan 1 2019, In : Frontiers in Psychiatry. 10, JULY, 455.

Research output: Contribution to journalArticle

Open Access
7 Scopus citations

Smartphone addiction in Japanese college students: Usefulness of the japanese version of the smartphone addiction scale as a screening tool for a new form of internet addiction

Tateno, M., Kim, D. J., Teo, A. R., Skokauskas, N., Guerrero, A. P. S. & Kato, T. A., Feb 2019, In : Psychiatry Investigation. 16, 2, p. 115-120 6 p.

Research output: Contribution to journalArticle

Open Access
2 Scopus citations

Using facebook for qualitative research: A brief primer

Franz, D., Marsh, H. E., Chen, J. I. & Teo, A. R., Jan 1 2019, In : Journal of medical Internet research. 21, 8, e13544.

Research output: Contribution to journalArticle

Open Access

Using Skype to Beat the Blues: Longitudinal Data from a National Representative Sample

Teo, A. R., Markwardt, S. & Hinton, L., Mar 2019, In : American Journal of Geriatric Psychiatry. 27, 3, p. 254-262 9 p.

Research output: Contribution to journalArticle

5 Scopus citations
2018

A 12-month study of the hikikomori syndrome of social withdrawal: Clinical characterization and different subtypes proposal

Malagón-Amor, Á., Martín-López, L. M., Córcoles, D., González, A., Bellsolà, M., Teo, A. R., Pérez, V., Bulbena, A. & Bergé, D., Dec 2018, In : Psychiatry Research. 270, p. 1039-1046 8 p.

Research output: Contribution to journalArticle

6 Scopus citations

Blood biomarkers of Hikikomori, a severe social withdrawal syndrome

Hayakawa, K., Kato, T. A., Watabe, M., Teo, A., Horikawa, H., Kuwano, N., Shimokawa, N., Sato-Kasai, M., Kubo, H., Ohgidani, M., Sagata, N., Toda, H., Tateno, M., Shinfuku, N., Kishimoto, J. & Kanba, S., Dec 1 2018, In : Scientific Reports. 8, 1, 2884.

Research output: Contribution to journalArticle

Open Access
12 Scopus citations

Development and validation of the 25-item Hikikomori Questionnaire (HQ-25)

Teo, A. R., Chen, J. I., Kubo, H., Katsuki, R., Sato-Kasai, M., Shimokawa, N., Hayakawa, K., Umene-Nakano, W., Aikens, J. E., Kanba, S. & Kato, T. A., Oct 2018, In : Psychiatry and Clinical Neurosciences. 72, 10, p. 780-788 9 p.

Research output: Contribution to journalArticle

Open Access
9 Scopus citations

Does LINE addiction exist? Potential concerns about Japan's most popular form of social media on smartphones

Tateno, M., Teo, A. & Kato, T. A., Jul 1 2018, In : Psychiatry and Clinical Neurosciences. 72, 7, p. 540-541 2 p.

Research output: Contribution to journalLetter

1 Scopus citations

Harnessing social media to explore youth social withdrawal in three major cities in China: Cross-sectional web survey

Liu, L. L., Li, T. M. H., Teo, A. R., Kato, T. A. & Wong, P. W. C., May 2018, In : Journal of medical Internet research. 20, 5, e34.

Research output: Contribution to journalReview article

Open Access
4 Scopus citations

Help-seeking on facebook versus more traditional sources of help: Cross-sectional survey of military veterans

Teo, A. R., Marsh, H. E., Liebow, S. B. L., Chen, J. I., Forsberg, C. W., Nicolaidis, C., Saha, S. & Dobscha, S. K., Jan 1 2018, In : Journal of medical Internet research. 20, 2, e62.

Research output: Contribution to journalReview article

Open Access
1 Scopus citations

Hikikomori: experience in Japan and international relevance

Kato, T. A., Kanba, S. & Teo, A., Feb 1 2018, In : World Psychiatry. 17, 1, p. 105-106 2 p.

Research output: Contribution to journalComment/debate

Open Access
25 Scopus citations

Loneliness is closely associated with depression outcomes and suicidal ideation among military veterans in primary care

Teo, A. R., Marsh, H. E., Forsberg, C. W., Nicolaidis, C., Chen, J. I., Newsom, J., Saha, S. & Dobscha, S. K., Apr 1 2018, In : Journal of Affective Disorders. 230, p. 42-49 8 p.

Research output: Contribution to journalArticle

23 Scopus citations

Prevalence rate of Internet addiction among Japanese college students: Two cross-sectional studies and reconsideration of cut-off points of Young's Internet Addiction Test in Japan

Tateno, M., Teo, A., Shiraishi, M., Tayama, M., Kawanishi, C. & Kato, T. A., Sep 1 2018, In : Psychiatry and Clinical Neurosciences. 72, 9, p. 723-730 8 p.

Research output: Contribution to journalArticle

12 Scopus citations

Reaching those at risk for psychiatric disorders and suicidal ideation: Facebook advertisements to recruit military veterans

Teo, A. R., Liebow, S. B. L., Chan, B., Dobscha, S. K. & Graham, A. L., Jul 2018, In : Journal of medical Internet research. 20, 7, e10078.

Research output: Contribution to journalArticle

4 Scopus citations

Urban mental health in the twenty-first century

Sartorius, N., Shinfuku, N., Kua, H. E., Kato, T. A., Teo, A., Tateno, M., Choi, T. Y., Balhara, Y. P. S. & Kanba, S., Aug 7 2018, Advances in Psychiatry. Springer International Publishing, p. 657-678 22 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations
2017

Can Pokémon GO rescue shut-ins (hikikomori) from their isolated world?

Kato, T. A., Teo, A., Tateno, M., Watabe, M., Kubo, H. & Kanba, S., Jan 1 2017, In : Psychiatry and Clinical Neurosciences. 71, 1, p. 75-76 2 p.

Research output: Contribution to journalLetter

Open Access
13 Scopus citations

Does hikikomori (severe social withdrawal) exist among young people in urban areas of China?

Wong, P. W. C., Liu, L. L., Li, T. M. H., Kato, T. A. & Teo, A. R., Dec 2017, In : Asian Journal of Psychiatry. 30, p. 175-176 2 p.

Research output: Contribution to journalLetter

10 Scopus citations

No-show rates when phone appointment reminders are not directly delivered

Teo, A., Forsberg, C. W., Marsh, H. E., Saha, S. S. & Dobscha, S., Nov 1 2017, In : Psychiatric Services. 68, 11, p. 1098-1100 3 p.

Research output: Contribution to journalArticle

2 Scopus citations

Suicide risk assessment and prevention: A systematic review focusing on veterans

Nelson, H., Denneson, L. M., Low, A. R., Bauer, B. W., O'Neil, M., Kansagara, D. & Teo, A., Oct 1 2017, In : Psychiatric Services. 68, 10, p. 1003-1015 13 p.

Research output: Contribution to journalReview article

12 Scopus citations
2016

A 39-year-old "adultolescent": Understanding social withdrawal in Japan

Kato, T. A., Kanba, S. & Teo, A. R., Feb 1 2016, In : American Journal of Psychiatry. 173, 2, p. 112-114 3 p.

Research output: Contribution to journalShort survey

Open Access
14 Scopus citations

Brief gatekeeper training for suicide prevention in an ethnic minority population: A controlled intervention

Teo, A. R., Andrea, S. B., Sakakibara, R., Motohara, S., Matthieu, M. M. & Fetters, M. D., Jul 7 2016, In : BMC Psychiatry. 16, 1, 211.

Research output: Contribution to journalArticle

Open Access
9 Scopus citations

Internet addiction and self-evaluated attention-deficit hyperactivity disorder traits among Japanese college students

Tateno, M., Teo, A. R., Shirasaka, T., Tayama, M., Watabe, M. & Kato, T. A., Dec 1 2016, In : Psychiatry and Clinical Neurosciences. 70, 12, p. 567-572 6 p.

Research output: Contribution to journalArticle

Open Access
29 Scopus citations

Multidimensional anatomy of 'modern type depression' in Japan: A proposal for a different diagnostic approach to depression beyond the DSM-5

Kato, T. A., Hashimoto, R., Hayakawa, K., Kubo, H., Watabe, M., Teo, A. R. & Kanba, S., Jan 1 2016, In : Psychiatry and Clinical Neurosciences. 70, 1, p. 7-23 17 p.

Research output: Contribution to journalReview article

Open Access
29 Scopus citations

New game software (Pokémon Go) may help youth with severe social withdrawal, hikikomori

Tateno, M., Skokauskas, N., Kato, T. A., Teo, A. R. & Guerrero, A. P. S., Jan 1 2016, (Accepted/In press) In : Psychiatry Research.

Research output: Contribution to journalArticle

New game software (Pokémon Go) may help youth with severe social withdrawal, hikikomori

Tateno, M., Skokauskas, N., Kato, T. A., Teo, A. R. & Guerrero, A. P. S., Dec 30 2016, In : Psychiatry Research. 246, p. 848-849 2 p.

Research output: Contribution to journalLetter

45 Scopus citations

Social Support and Health Service Use in Depressed Adults: Findings From the National Health and Nutrition Examination Survey

Andrea, S. B., Siegel, S. A. R. & Teo, A. R., Mar 1 2016, In : General Hospital Psychiatry. 39, p. 73-79 7 p.

Research output: Contribution to journalArticle

9 Scopus citations
2015

Does mode of contact with different types of social relationships predict depression in older adults? Evidence from a nationally representative survey

Teo, A. R., Choi, H., Andrea, S. B., Valenstein, M., Newsom, J. T., Dobscha, S. K. & Zivin, K., Oct 2015, In : Journal of the American Geriatrics Society. 63, 10, p. 2014-2022 9 p.

Research output: Contribution to journalReview article

42 Scopus citations

Eleven-year follow up of boy with Asperger's syndrome and comorbid gender identity disorder of childhood

Tateno, M., Teo, A. R. & Tateno, Y., Oct 2015, In : Psychiatry and Clinical Neurosciences. 69, 10, 1 p.

Research output: Contribution to journalLetter

5 Scopus citations

Generalized social anxiety disorder: A still-neglected anxiety disorder 3 decades since Liebowitz's review

Nagata, T., Suzuki, F. & Teo, A. R., Dec 1 2015, In : Psychiatry and Clinical Neurosciences. 69, 12, p. 724-740 17 p.

Research output: Contribution to journalReview article

9 Scopus citations

Identification of the hikikomori syndrome of social withdrawal: Psychosocial features and treatment preferences in four countries

Teo, A. R., Fetters, M. D., Stufflebam, K., Tateno, M., Balhara, Y., Choi, T. Y., Kanba, S., Mathews, C. A. & Kato, T. A., Mar 3 2015, In : International Journal of Social Psychiatry. 61, 1, p. 64-72 9 p.

Research output: Contribution to journalArticle

60 Scopus citations

Military Veterans' Experiences with Suicidal Ideation: Implications for Intervention and Prevention

Denneson, L. M., Teo, A. R., Ganzini, L., Helmer, D. A., Bair, M. J. & Dobscha, S. K., Aug 1 2015, In : Suicide and Life-Threatening Behavior. 45, 4, p. 399-414 16 p.

Research output: Contribution to journalArticle

11 Scopus citations

Psychopathology associated with social withdrawal: Idiopathic and comorbid presentations

Teo, A. R., Stufflebam, K., Saha, S., Fetters, M. D., Tateno, M., Kanba, S. & Kato, T. A., Jul 30 2015, In : Psychiatry Research. 228, 1, p. 182-183 2 p.

Research output: Contribution to journalLetter

16 Scopus citations

Relationship between trusting behaviors and psychometrics associated with social network and depression among young generation: A pilot study

Watabe, M., Kato, T. A., Teo, A. R., Horikawa, H., Tateno, M., Hayakawa, K., Shimokawa, N. & Kanba, S., Apr 2 2015, In : PloS one. 10, 4, e0120183.

Research output: Contribution to journalArticle

Open Access
6 Scopus citations

Social networks, mental health problems, and mental health service utilization in OEF/OIF National Guard veterans

Sripada, R. K., Bohnert, A. S. B., Teo, A. R., Levine, D. S., Pfeiffer, P. N., Bowersox, N. W., Mizruchi, M. S., Chermack, S. T., Ganoczy, D., Walters, H. & Valenstein, M., Sep 30 2015, In : Social Psychiatry and Psychiatric Epidemiology. 50, 9, p. 1367-1378 12 p.

Research output: Contribution to journalArticle

11 Scopus citations

The prevalence and correlates of severe social withdrawal in Hong Kong

Teo, A. R. & Kato, T. A., Mar 3 2015, In : International Journal of Social Psychiatry. 61, 1, 1 p.

Research output: Contribution to journalLetter

4 Scopus citations

Use of a public film event to promote understanding and help seeking for social withdrawal

Teo, A. R., Stufflebam, K. W., Lu, F. & Fetters, M. D., Jun 1 2015, In : Asia-Pacific Psychiatry. 7, 2, p. 157-163 7 p.

Research output: Contribution to journalArticle

4 Scopus citations
2014

Correlates of Suicide Among Veterans Treated in Primary Care: Case–Control Study of a Nationally Representative Sample

Dobscha, S. K., Denneson, L. M., Kovas, A. E., Teo, A., Forsberg, C. W., Kaplan, M. S., Bossarte, R. & McFarland, B. H., Nov 21 2014, In : Journal of general internal medicine. 29, 4, p. 853-860 8 p.

Research output: Contribution to journalArticle

25 Scopus citations

Phobias

Teo, A., Jan 1 2014, Encyclopedia of the Neurological Sciences. Elsevier Inc., p. 890-891 2 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

2013

Comorbid social withdrawal (hikikomori) in outpatients with social anxiety disorder: Clinical characteristics and treatment response in a case series

Nagata, T., Yamada, H., Teo, A. R., Yoshimura, C., Nakajima, T. & Van Vliet, I., Feb 1 2013, In : International Journal of Social Psychiatry. 59, 1, p. 73-78 6 p.

Research output: Contribution to journalArticle

24 Scopus citations

How can we better manage difficult patient encounters?

Teo, A. R., Du, Y. B. & Escobar, J. I., Aug 1 2013, In : Journal of Family Practice. 62, 8, p. 414-418+421

Research output: Contribution to journalArticle

8 Scopus citations