Abstract:
BACKGROUND:Irregular circadian rhythm and cognitive impairment are frequently observed in patients with chronic schizophrenia. However, their effects in different living environments or with aging remain unclear. The aim of this study was to clarify the characteristics of circadian rhythm and cognition function in the patients with chronic schizophrenia. METHODS:This report described data collected using continuous wrist-active monitoring in real-life settings for seven days and the Brief Assessment of Cognition in Schizophrenia Japanese Version (BACS-J) from 10 inpatients with chronic schizophrenia, 10 outpatients with chronic schizophrenia, and 15 healthy elderly people. The Global Assessment of Functioning (GAF) Scale was used to measure the social functioning in the patients with chronic schizophrenia. RESULTS:The outpatients with chronic schizophrenia exhibited highly interrupted circadian patterns in terms of stability and the fragmentation of activity (p < 0.05) as indexed according to Interdaily Stability (IS) and Intradaily Variability (IV). The inpatients with chronic schizophrenia indicated the most stable rhythm (p < 0.05) and inactive state (p = 0.001) among the groups. Also, the inpatients with chronic schizophrenia showed poorer cognitive functioning with Z-scores of subtests except digit sequencing (p < 0.01). According to stepwise linear regression analysis, the motor speed of BACS-J and IS of circadian parameters were the most powerful variables to predict the GAF in patients with chronic schizophrenia. CONCLUSIONS:The characteristics of circadian rhythm and cognition function in the inpatients with chronic schizophrenia appear distinct from those in the outpatients and the healthy elderly people. Circadian rhythm and cognition function in the patients with chronic schizophrenia may, in part, be affected by different living environments.
journal_name
Int Psychogeriatrjournal_title
International psychogeriatricsauthors
Kume Y,Sugita T,Oga K,Kagami K,Igarashi Hdoi
10.1017/S1041610214001604subject
Has Abstractpub_date
2015-01-01 00:00:00pages
135-43issue
1eissn
1041-6102issn
1741-203Xpii
S1041610214001604journal_volume
27pub_type
杂志文章abstract::There was a five-year delay between the two waves of the Canadian Study of Health and Aging during which 2,982 participants died. Their cognitive status before death should be taken into account in estimating the incidence of dementia in the cohort. Information concerning antemortem cognitive status was available from...
journal_title:International psychogeriatrics
pub_type: 杂志文章,多中心研究
doi:10.1017/s1041610202008037
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abstract::Loss of brain tissue becomes notable to cerebral magnetic resonance imaging (MRI) at age 30 years, and progresses more rapidly from mid 60s. The incidence of dementia increases exponentially with age, and is all too frequent in the oldest old (≥ 90 years of age), the fastest growing age group in many countries. Howeve...
journal_title:International psychogeriatrics
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journal_title:International psychogeriatrics
pub_type: 杂志文章
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journal_title:International psychogeriatrics
pub_type: 杂志文章,评审
doi:10.1017/s1041610296002578
更新日期:1996-07-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
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journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/S104161021200107X
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journal_title:International psychogeriatrics
pub_type: 杂志文章
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journal_title:International psychogeriatrics
pub_type: 杂志文章,评审
doi:10.1017/S1041610209008746
更新日期:2009-04-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
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journal_title:International psychogeriatrics
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journal_title:International psychogeriatrics
pub_type: 杂志文章
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更新日期:2016-10-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章,评审
doi:10.1017/S1041610210000736
更新日期:2010-11-01 00:00:00
abstract:BACKGROUND:Earlier research showed that multi-component dyadic interventions - including a combination of intervention strategies and addressing both the person with dementia and caregiver - have a beneficial impact on the mental and physical health of people with dementia and their family caregivers. A randomized cont...
journal_title:International psychogeriatrics
pub_type: 杂志文章,随机对照试验
doi:10.1017/S104161021500071X
更新日期:2015-12-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 社论
doi:10.1017/S1041610217002150
更新日期:2017-12-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
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更新日期:2019-05-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/S1041610210002012
更新日期:2011-05-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/s1041610205001481
更新日期:2005-06-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/S1041610217001235
更新日期:2017-12-01 00:00:00
abstract::ABSTRACTBackground:Dementia is a neurodegenerative syndrome that interferes with multiple aspects of life, including cognition, daily functioning, and behavior. Despite the large heterogeneity in symptom development, these three domains are seldom studied simultaneously. This study investigates how trajectories of the...
journal_title:International psychogeriatrics
pub_type: 杂志文章,多中心研究
doi:10.1017/S1041610217000321
更新日期:2018-06-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/S1041610211001803
更新日期:2012-02-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/S1041610218000546
更新日期:2019-01-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/S1041610210001109
更新日期:2011-04-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/s1041610200006554
更新日期:2000-12-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/S1041610213000574
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:While dementia is more common in older people and suicide rates in many countries are higher among the elderly, there is some doubt about the association between these two phenomena. METHODS:A search of the major relevant databases was carried out to examine the evidence for this possible association. RESU...
journal_title:International psychogeriatrics
pub_type: 杂志文章,评审
doi:10.1017/S1041610209009065
更新日期:2009-06-01 00:00:00
abstract::Although individuals aged 65 and over accounted for 12% of the total population of Japan in 1990, suicides in this age group consisted of 29% of all suicides. The elderly population of Japan is expected to grow rapidly to 24% of the total population by the year 2020, and suicide prevention for the elderly is an urgent...
journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/s1041610295002006
更新日期:1995-07-01 00:00:00
abstract:BACKGROUND:Capgras syndrome is characterized by the recurrent, transient belief that a person has been replaced by an identical imposter. We reviewed clinical characteristics of Dementia with Lewy Bodies (DLB) patients with Capgras syndrome compared to those without Capgras. METHODS:We identified 55 consecutive DLB pa...
journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/S1041610212002189
更新日期:2013-05-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 社论
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更新日期:2017-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:2012-04-01 00:00:00
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journal_title:International psychogeriatrics
pub_type: 杂志文章
doi:10.1017/S1041610214000581
更新日期:2014-04-09 00:00:00