Lifetime prevalence, psychiatric comorbidity and demographic correlates of “hikikomori” in a community population in Japan

Asuka Koyama, Yuko Miyake, Norito Kawakami, +3

Psychiatry Research

Lifetime PrevalenceEpidemiologyCommunity PopulationPsychiatric DisordersPsychiatry +10

Polypharmacy and excessive dosing: Psychiatrists' perceptions of antipsychotic drug prescription

Hiroto Ito, Asuka Koyama, Teruhiko Higuchi

The British Journal of Psychiatry

Living alone is associated with depression among the elderly in a rural community in Japan

Ryuta Fukunaga, Yasuhisa Abe, Yoichi Nakagawa, +3

Psychogeriatrics

Mental health among younger and older caregivers of dementia patients

Asuka Koyama, Masateru Matsushita, Mamoru Hashimoto, +7

Psychogeriatrics

The relationship between post-stroke depression and physical recovery

Shiho Matsuzaki, Mamoru Hashimoto, Seiji Yuki, +3

Journal of Affective Disorders

Stroke RehabilitationPsychiatryMedicineSubcortical Ischemic DepressionFunctional Recovery +6

Malnutrition in Alzheimer’s Disease, Dementia with Lewy Bodies, and Frontotemporal Lobar Degeneration: Comparison Using Serum Albumin, Total Protein, and Hemoglobin Level

Asuka Koyama, Mamoru Hashimoto, Hibiki Tanaka, +10

PLoS ONE

NutritionAgingAlzheimer's DiseaseNeurologyAging-associated Disease +18

Mental health literacy of autism spectrum disorders in the Japanese general population

Tomonori Koyama, Hisateru Tachimori, Kanae Sawamura, +4

Social Psychiatry and Psychiatric Epidemiology

PsychiatryAutism Spectrum DisordersPsychologyAutismSocial Sciences +7

Age-Related Changes in Instrumental and Basic Activities of Daily Living Impairment in Older Adults with Very Mild Alzheimer’s Disease

Takayuki Tabira, Maki Hotta, Miki Murata, +11

Dementia and Geriatric Cognitive Disorders Extra

Is sense of coherence helpful in coping with caregiver burden for dementia?

Masateru Matsushita, Tomohisa Ishikawa, Asuka Koyama, +6

Psychogeriatrics

Family functioning perceived by patients and their family members in three Diagnostic and Statistical Manual‐IV diagnostic groups

Asuka Koyama, Tsuyoshi Akiyama, Yuko Miyake, +1

Psychiatry and Clinical Neurosciences