• Title/Summary/Keyword:  executive function

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Comparison of driving cognition on paretic side in drivers following stroke

  • Gang, Na Ri;Shin, Hwa-Kyung
    • Physical Therapy Rehabilitation Science
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    • v.7 no.3
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    • pp.114-118
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    • 2018
  • Objective: The left and right sides of the brain has different roles. This study investigated the differences in cognitive driving ability between stroke survivors with damage to the left brain and right brain. Therefore, the purpose of this study was to compare the driving cognitive ability of left and right hemispheric drivers following stroke. Design: Cross-sectional study. Methods: The Stroke Drivers' Screening Assessment (SDSA) from the UK was translated to the Korean Stroke Drivers' Screening Assessment (K-SDSA) to meet the specific traffic environments of Korea. The SDSA is composed of 4 tasks :1) a dot cancellation task that measures concentration and visuospatial abilities necessary for driving, 2) a directional matrix task to measure spatio-temporal executive function required for driving, 3) a compass matrix task to measure accurate direction determination ability required for driving, and 4) recognition of traffic signs and reasoning ability to understanding traffic situation. The SDSA assessment time is about 30 minutes. The K-SDSA was used to compare the cognitive driving abilities between 15 stroke survivors with left and 15 stroke survivors with right brain damage. Results: There were significant differences between the persons with stroke patients with left brain lesions (right hemiplegia) compared to the persons with stroke with right brain lesions (left hemiplegia) (p<0.05). It was found that the cognitive driving ability of those with right brain damage was lower than that of the group of left brain damage. Conclusions: This research investigated the driving cognitive ability of persons with stroke. The therapists can use this information as basis for the driving test and training purposes. It could also be used as a basis to understanding if the cognitive ability of not only stroke survivors but also those with brain damage is adequate to actually drive.

Development of Computerized Screening Test Items for Mild Cognitive Impairment (경도인지장애 선별을 위한 전산화 평가 항목 개발)

  • Park, Jin-Hyuck;Park, Ji-Hyuk
    • Therapeutic Science for Rehabilitation
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    • v.7 no.4
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    • pp.31-41
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    • 2018
  • Objective: This study was to develop computerized screening test items for mild cognitive impairment. Methods: Through literature reviews, items from computerized tests for screening mild cognitive impairment were extracted. A panel of professional experts validated that the items were important and fit to screen for mild cognitive impairment. Results: A total 37 items were extracted from 12 computerized tests and 11 new items were added through the first panel review. After that, 18 items were removed via the second panel review. Finally, 16 items were selected by analyzing content validity ratio. 16 items consisted of memory, attention, and executive function areas. Conclusions: A total of 16 computerized test items were developed. It is urgent to validate them to screen mild cognitive impairment. Moreover, standardization studies for this test are required in the future.

Effect of Duty Free Shop's Service Quality on Relationship Quality and Loyalty (면세점의 지각된 서비스품질이 관계품질과 고객충성도에 미치는 영향)

  • Li, Liang;Yoo, Kun-Woo;Park, Chan-Wook
    • Journal of Distribution Science
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    • v.15 no.4
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    • pp.41-57
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    • 2017
  • Purpose - With the growth of the duty free shop field and an increase in the executive interest in it, it becomes necessary to examine if PBZ (1988) SERVQUAL could be applied to duty free shop service reflecting on this increased interest and the importance of marketing strategy alternative managing multinational customers. Therefore, the present research focused on the comparison of Korean and Chinese consumers. We examined how service quality would affect relationship quality and customer loyalty. Research design, data, and methodology - Surveys were distributed to 235 Korean and 220 Chinese consumers who have visited a Korean duty free shop. We analyzed frequency analysis, mean difference analysis, and reliability analysis, exploratory factor analysis, confirmatory factor analysis, structural equation model analysis, and multi-group analysis. Results - First, perceived tangibles, responsiveness, empathy, assurance, price benefits, product diversity, and IT convenience of duty free shop service all appeared to be positive effect on customer satisfaction; at the same time, only tangibles, responsiveness, empathy, assurance, and price benefits positively affected customer trust. Secondly, customer satisfaction and trust that are the components of the relationship quality appeared to be positive effect on customer loyalty. Thirdly, customers' satisfaction was found to play a full mediating role effect among all of the service quality factors with customer loyalty; however, customer trust was found to have the mediating effects only with tangibles, empathy, assurance, and price benefits. Fourthly, we found a difference between how service quality influences relationship quality and how service quality influences customer loyalty as a function of different nationality. As a result, it appeared that price benefits and IT convenience affected customer satisfaction more among Koreans than among Chinese. Finally, it appeared that customer satisfaction and trust affected customer loyalty more among Chinese than among Koreans. Conclusions - The results of this study contribute to the theoretical knowledge, but also provide strategic alternatives to enhance differentiation, international competence of enterprises led by duty free shop and service quality improvement and customer loyalty of enterprises are drawn as a foundation for constructing international customer relationship in future global era.

Cognitive-Pragmatic Language Assessment for Normal Aging : Study of Assessment Tools and Content Validity (노년층의 인지-화용언어 능력 평가 : 평가도구 및 내용타당도 연구)

  • Lee, Mi-Sook;Kim, Hyang-Hee
    • The Journal of the Korea Contents Association
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    • v.12 no.5
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    • pp.280-292
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    • 2012
  • Cognitive-pragmatic language ability decreases during the normal aging process. Evaluating the ability might be useful in testing predicting cognitive level and diseases such as dementia. The aim of this study is to analyze various assessment protocols for normal aging, and evaluate the content validity of the currently developing cognitive-pragmatic language test domains and items. Content Validity Index(CVI) was calculated based on ratings judged by 17 experts including speech-language pathologists and clinical psychologists. As a result, it was found that CVIs of all 7 domains including attention, memory, organization, reasoning, problem solving, executive function, pragmatic language were above .75. It was concluded that the test items contained the appropriate content validity to assess cognitive-pragmatic language for normal aging.

The Correlation Study between Interference Test with the Weak Children(虛弱兒) Symptoms (주의력 간섭검사와 허약아 증상에 관한 연구 - 스트룹 아동 색상-단어검사 중심으로-)

  • Gok, Su-Yeong;Lyu, Sun-Ae;Lee, Seung-Yeon
    • The Journal of Pediatrics of Korean Medicine
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    • v.23 no.3
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    • pp.71-88
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    • 2009
  • Objectives The purpose of this study is to find out the correlation between Stroop interference and the symptoms of weak children. Methods Questionnaire and performed Stroop interference test were done by 145 patients in OO Oriental Medical Hospital from May to October 2009. 120 patients who were considered as the weak children were divided into two groups: Stroop Interference T score above average group and below average group, and were surveyed again. Results 1. The study showed that age, the highest marked subject and behavior habits correlate to interference score and subjects characteristics. 2. Weak children groups had the highest tendency of having weak heart followed by weak lung spleen, liver, and kidney. Normally, a patient belonged to more than one of the weak children groups. 3. The study showed that a group of children who has weak heart and lung were related to interference score. The group which earned below average interference score had the highest frequency of being children with weak heart group. The group scored above average, however, had the highest chance of being children with weak lung group. 4. The study showed that interference score was related to four out of fifty questions about the weak children symptoms. Plus, related questions were all about the heart weak children symptoms. Conclusions In conclusion, there were significant correlation between interference score and the group consists of children who were weak: more specifically with children with weak heart.

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Neurobiological Pathophysiology of Attention Deficit Hyperactivity Disorder (주의력결핍 과잉행동장애의 신경생물학적 병태생리)

  • Park, Hyung Bae;Joo, Yeol
    • Journal of Yeungnam Medical Science
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    • v.17 no.2
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    • pp.108-122
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    • 2000
  • Background: Models of attention deficit hyperactivity disorder(ADHD) that have proposed a hypodopaminergic state resulting in hypofunction of the prefrontal circuitry have assumed a unitary dopamine system, which largely ignores the distinct functional differences between mesocortical dopamine system and nigrostriatal dopamine system. Purpose: The author's goal was to develop a pathophysiological model for ADHD with greater explanotory power than dopaminergic hypofunction hypothesis in prefronal circuitry. Material and Methods: Published clinical findings on ADHD were integrated with data from genetic, pharmacological, neuroimaging studies in human and animals. Results: Molecular genetic studies suggest that three genes may increase the susceptibility to ADHD. The three candidate genes associated with ADHD are each involved in dopaminergic function, and this consistent with the neurobiologic studies implicating catecholamines in the etiology of ADHD. Pharmacological data also provide compelling support for dopamine and noradrenergic hypothesis of ADHD. Neuroimaging studies lend substantial support for the hypothesis that right-sided abnormalities of prefrontal-basal ganglia circuit would be found in ADHD. Conclusions: The present hypothesis takes advantage of the major differences between the two pertinent dopamine systems. Mesocortical dopamine system, which largely lacks inhibitory autoreceptors, is ideally positioned to regulate cortical inputs, thus improving the signal-to-noise ratio for biologically valued signals. In this circuit, therapeutic doses of stimulants are hypothesized to increase postsynaptic dopamine effects and enhance executive functions. By contrast, symptoms of hyperactivity/impulsivity in ADHD are hypothesized to be associated with relative overactivity of nigrostriatal circuit. This nigrostriatal circuit is tightly regulated by inhibitory autoreceptoors as well as by long distance feedback from the cortex, and slow diffusion of therapeutic doses of stimulant via oral administration is hypothesized to produce a net inhibition of dopaminergic neurotransmission and improves hyperactivity.

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Cognitive Assessment in Complex Regional Pain Syndrome Patients (복합부위통증증후군 환자의 인지기능 평가)

  • Moon, Jee Youn;Kim, Yong Chul;Park, Mi Jung;Lee, Pyung Bok;Lee, Sang Chul;Kang, Do Hyung;Shin, Min Sup;Kwon, Tae Myung
    • The Korean Journal of Pain
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    • v.22 no.1
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    • pp.28-32
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    • 2009
  • Background: Complex regional pain syndrome (CRPS) is characterized by severe neuropathic pain and disability, which can result in psychological and behavioral dysfunction. The goal of the present study was to evaluate neurocognitive disability, and to assess the relationship between clinical variables and neuropsychological features in CRPS patients. Methods: We investigated the neuropsychological features of 15 CRPS I patients. The neuropsychological tests that we made comprised of a full intelligence quotient, memory quotient, trail-making test A, trail-making test B (TMT-B), and MMPI (Minnesota multiphasic personality inventory). Results: The results showed severe disability in performance on TMT-B. There was no significant correlation between specific cognitive variables and MMPI scales. Conclusions: Decreased performance on TMT-B which shows mental flexibility in the prefrontal lobe exists independently from depressive disorders in CRPS patients.

The opportunities of virtual reality in the rehabilitation of children with attention deficit hyperactivity disorder: a literature review

  • Bashiri, Azadeh;Ghazisaeedi, Marjan;Shahmoradi, Leila
    • Clinical and Experimental Pediatrics
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    • v.60 no.11
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    • pp.337-343
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    • 2017
  • Attention deficit hyperactivity disorder (ADHD) is one of the most common psychiatric disorders in childhood. This disorder, in addition to its main symptoms, creates significant difficulties in education, social performance, and personal relationships. Given the importance of rehabilitation for these patients to combat the above issues, the use of virtual reality (VR) technology is helpful. The aim of this study was to highlight the opportunities for VR in the rehabilitation of children with ADHD. This narrative review was conducted by searching for articles in scientific databases and e-Journals, using keywords including VR, children, and ADHD. Various studies have shown that VR capabilities in the rehabilitation of children with ADHD include providing flexibility in accordance with the patients' requirements; removing distractions and creating an effective and safe environment away from real-life dangers; saving time and money; increasing patients' incentives based on their interests; providing suitable tools to perform different behavioral tests and increase ecological validity; facilitating better understanding of individuals' cognitive deficits and improving them; helping therapists with accurate diagnosis, assessment, and rehabilitation; and improving working memory, executive function, and cognitive processes such as attention in these children. Rehabilitation of children with ADHD is based on behavior and physical patterns and is thus suitable for VR interventions. This technology, by simulating and providing a virtual environment for diagnosis, training, monitoring, assessment and treatment, is effective in providing optimal rehabilitation of children with ADHD.

Human Embryo Research and Tort Liability (배아연구와 불법행위책임)

  • Seo, Jong-Hee
    • The Korean Society of Law and Medicine
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    • v.12 no.1
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    • pp.227-255
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    • 2011
  • Recently, many nations said "yes" to human embryonic stem cell research, signing an executive order to permit funding for the research in the mame of achieving health and life of humankind. Human Embryo Research is permitted by our Bioethics & Biosafety Act. But, illegal research cannot be divorced from civil liability since it requires the destruction of eggs of fertilized eggs and personal rights of embryo-creator. After all, though we allow to do research embryo, we should control the capacity of abuse of embryo research for embryo-creator. If research violate the law(Bioethics & Biosafety Act or Civil Law, etc), it comes to a delict by pecuniary loss and non-pecuniary loss. When it comes to pecuniary loss, Human Embryo is not body but special property. Supreme Court maintained a stance that mental suffering is generally deemed as compensable for damages for the loss of property where a person's property right is invaded by a tort or non-performance of obligation. Thus, where mental suffering occurs, which cannot be compensated by recovery of property losses, the situation must be a special circumstance and the injured could claim consolation money for such losses only if the offender knew or would have known of such special circumstances(Supreme Court Decision 96Da31574 delivered on Nov, 26, 1996, etc.). That is to say, Supreme Court regards mental suffering through person's property right invaded by a tort as damages that have arisen through special circumstances. According to Civil law article 393 (2), the injured could claim consolation money for such losses only if only if the offender had foreseen or could have foreseen such circumstances. Also our court will solve through damages for non-pecuniary loss by complementary function of consolation money in that pecuniary loss could be difficult to valuate.

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A Study on the Performance of the Human Service Organizations : An Analysis from the Perspective of Quality of Output (사회복지서비스 기관의 조직성과에 관한 연구 : 서울시 지역사회복지관의 질 산출(quality output)을 중심으로)

  • Kang, Chul-Hee;Chung, Moo-Sung
    • Korean Journal of Social Welfare
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    • v.49
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    • pp.343-378
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    • 2002
  • This study examines the organizational performance of human service organizations from the quality output perspective. Using the 2001 evaluation data about 89 community welfare centers in Seoul, this study attempts to identify the levels of the performance of human service organizations in Korea. This study also attempts to identify the factors that predict performance of human service organizations measured in terms of client satisfaction and experts' evaluation about the functioning of each center. Results are as follows: (1) when pooling 866 clients' satisfaction level into satisfaction score about each center, the average of client satisfaction about the centers is 3.42 at 4 points scale. (2) 41.6% of the community welfare centers is evaluated as "highly qualified" in its overall operation and functioning by the professional evaluation team, (3) the employee reward system(+), practice based on the program guideline manual(+), the portion of the government support grant in its budget(-), the overall employee salary level(-), the level of acquirement of program grants from external sources (-) are the predictors in explaining clients' satisfaction level, and (4) the level of professional expertise of the executive director(+), the level of professional supervision of middle managers(+), the employee reward system(+), the program need assessment(+), the level of client information system(+), the portion of government support grant(-), the overall employee salary level(-) are the predictors for "being highly qualified" in its overall operation and function of each center. Through the empirical analysis, this study provides valuable knowledge about organizational performance of community welfare centers from the quality output perspective. Finally, this study discusses implications for more effective and efficient organizational performance of community welfare centers in Korea.

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