21 results on '"M. Steinisch"'
Search Results
2. A comprehensive assessment of community needs as an initial step in the One Good Year Added study
- Author
-
K Hoffmann, M Steinisch, L Schilling, Catherin Bosle, C Schluefter, Joachim E. Fischer, J Hilger, Claudia Ganter, and M Albrecht
- Subjects
Public Health, Environmental and Occupational Health - Published
- 2017
- Full Text
- View/download PDF
Catalog
3. Versorgungszugang und Bedarfe von Kindern mit rumänisch/bulgarischem Migrationshintergrund: Ergebnisse aus Schuleingangsuntersuchungen
- Author
-
P Schäfer, M Steinisch, and F De Bock
- Published
- 2017
- Full Text
- View/download PDF
4. Early detection of coronary artery disease in patients studied with magnetocardiography: An automatic classification system based on signal entropy
- Author
-
Dietrich Grönemeyer, M. Steinisch, Jens Haueisen, Silvia Comani, Birgit Hailer, Paul R. Torke, and Peter Van Leeuwen
- Subjects
Adult ,Male ,medicine.medical_specialty ,Entropy ,Health Informatics ,Coronary Artery Disease ,Sensitivity and Specificity ,Surrogate data ,Coronary artery disease ,Internal medicine ,Positive predicative value ,medicine ,Humans ,Entropy (information theory) ,Aged ,Magnetocardiography ,Artificial neural network ,business.industry ,Discriminant Analysis ,Reproducibility of Results ,Signal Processing, Computer-Assisted ,Middle Aged ,Linear discriminant analysis ,medicine.disease ,Computer Science Applications ,Early Diagnosis ,Multilayer perceptron ,Cardiology ,Female ,business - Abstract
We propose an automatic system for the classification of coronary artery disease (CAD) based on entropy measures of MCG recordings. Ten patients with coronary artery narrowing>[email protected]?50% were categorized by a multilayer perceptron (MLP) neural network based on Linear Discriminant Analysis (LDA). Best results were obtained with MCG at rest: 99% sensitivity, 97% specificity, 98% accuracy, 96% and 99% positive and negative predictive values for single heartbeats. At patient level, these results correspond to a correct classification of all patients. The classifier's suitability to detect CAD-induced changes on the MCG at rest was validated with surrogate data. more...
- Published
- 2013
- Full Text
- View/download PDF
5. Embodied and disembodied allocentric simulation in high schizotypal subjects
- Author
-
M. Steinisch, Giorgia Committeri, Roberta Vastano, Silvia Comani, Valentina Sulpizio, Vastano R, SULPIZIO, VALENTINA, STEINISCH, MARTIN, COMANI, Silvia, and COMMITTERI, Giorgia
- Subjects
Male ,Questionnaires ,Schizotypy ,very elderly ,personal experience ,Virtual reality ,Developmental psychology ,human experiment ,Surveys and Questionnaires ,neurologic examination ,80 and over ,Big Five personality traits ,Personality traits ,media_common ,magic ,Aged, 80 and over ,General Neuroscience ,Medicine (all) ,Mental transformations ,Perspective taking ,Self-rotation ,Adolescent ,Adult ,Aged ,Female ,Humans ,Middle Aged ,Personality ,Reaction Time ,Schizotypal Personality Disorder ,Virtual Reality Exposure Therapy ,Young Adult ,Neuroscience (all) ,Object (philosophy) ,task performance ,personality test ,Psychology ,allocentric simulation deficit ,disembodied perspective taking ,Cognitive psychology ,experimental design ,media_common.quotation_subject ,Article ,medicine ,human ,normal human ,Cued speech ,correlation analysi ,questionnaire ,medicine.disease ,Schizotypal personality disorder ,schizophrenia ,Embodied cognition ,embodied perspective taking - Abstract
It is known that non-clinical subjects with high levels of schizotypal personality traits (High-S), as well as schizophrenic patients, have difficulties to judge how a scene would appear (so-called Appearance questions) from a point of view other than their own after having performed a disembodied perspective taking (D-PT, a mental self-rotation cued by an object like a chair). This inability has been defined allocentric simulation deficit. However, it is still unclear whether this inability might also regard an embodied transformation (E-PT), which is a self-rotation cued by another individual in the scene, and whether the observed deficit regards the pure mental transformation phase. In the present study, we took advantage of a virtual reality environment to explore both embodied and disembodied allocentric simulation in healthy volunteers with low and high levels of schizotypal personality traits, as assessed by the Schizotypal Personality Questionnaire. All subjects performed a pure self-rotation cued by a chair (D-PT) or by an avatar (E-PT), or a control array rotation. Each rotation was followed by classical Appearance and Item questions. Results revealed no between-groups differences in the mental transformation phase, while High-S subjects were significantly slower than Low-S subjects in the Appearance task after D-PT, but not after E-PT. Accordingly, higher schizotypy levels (cognitive-perceptual subscale) were positively correlated with slower reaction times in the Appearance task after D-PT. These data suggest the existence of a disembodied allocentric simulation deficit in non-clinical High-S, paving the way to future studies on clinical populations. more...
- Published
- 2014
6. A post-stroke rehabilitation system integrating robotics, VR and high-resolution EEG imaging
- Author
-
Silvia Comani, M. Steinisch, and M.G. Tana
- Subjects
Male ,Engineering ,medicine.medical_treatment ,Biomedical Engineering ,Kinematics ,Electroencephalography ,Virtual reality ,Upper Extremity ,EEGLAB ,User-Computer Interface ,Young Adult ,Data acquisition ,Internal Medicine ,medicine ,Humans ,Simulation ,Monitoring, Physiologic ,Brain Mapping ,Rehabilitation ,medicine.diagnostic_test ,business.industry ,General Neuroscience ,Process (computing) ,Stroke Rehabilitation ,Brain ,Robotics ,Middle Aged ,Biomechanical Phenomena ,Stroke ,Data Interpretation, Statistical ,Female ,Artificial intelligence ,business ,Algorithms ,Psychomotor Performance ,Gravitation - Abstract
We propose a system for the neuro-motor rehabilitation of upper limbs in stroke survivors. The system is composed of a passive robotic device (Trackhold) for kinematic tracking and gravity compensation, five dedicated virtual reality (VR) applications for training of distinct movement patterns, and high-resolution EEG for synchronous monitoring of cortical activity. In contrast to active devices, the Trackhold omits actuators for increased patient safety and acceptance levels, and for reduced complexity and costs. VR applications present all relevant information for task execution as easy-to-understand graphics that do not need any written or verbal instructions. High-resolution electroencephalography (HR-EEG) is synchronized with kinematic data acquisition, allowing for the epoching of EEG signals on the basis of movement-related temporal events. Two healthy volunteers participated in a feasibility study and performed a protocol suggested for the rehabilitation of post-stroke patients. Kinematic data were analyzed by means of in-house code. Open source packages (EEGLAB, SPM, and GMAC) and in-house code were used to process the neurological data. Results from kinematic and EEG data analysis are in line with knowledge from currently available literature and theoretical predictions, and demonstrate the feasibility and potential usefulness of the proposed rehabilitation system to monitor neuro-motor recovery. more...
- Published
- 2013
7. A passive robotic device for VR-augmented upper limb rehabilitation in stroke patients
- Author
-
M.G. Tana, M. Steinisch, and Silvia Comani
- Subjects
Engineering ,Motor area ,medicine.diagnostic_test ,Stroke patient ,business.industry ,Biomedical Engineering ,Kinematics ,Virtual reality ,Electroencephalography ,Activation pattern ,Task (project management) ,medicine ,Upper limb rehabilitation ,business ,Simulation - Abstract
We present a feasibility study for the combined use of a passive robotic device, virtual reality and high resolution encephalography (HR-EEG) in the upper limb rehabilitation in stroke patients'. Five virtual environments (VEs) simulating activities of daily living or abstract visuo-motor coordination tasks were developed. They require a series of short, comparable limb movements in two- or three-dimensional space. HR-EEG and kinematic data from the robotic device were recorded synchronously, allowing to epoch EEG signals on the basis of the movement onset and therefore to monitor activation of cortical motor areas during task execution. The analysis of the kinematic parameters confirmed theoretical assumptions, and the movement-related cortical maps showed the expected spatial activation pattern. more...
- Published
- 2012
- Full Text
- View/download PDF
8. A virtual environment for egocentric and allocentric mental transformations: a study on a non clinical population of adults with distinct levels of schizotypy
- Author
-
Angelo Andrea Iorio, Giorgia Committeri, Alessandra Di Naccio, M. Steinisch, Jens Haueisen, Silvia Comani, Valentina Sulpizio, Steinisch Martin, Sulpizio Valentina, Iorio Angelo Andrea, Di Naccio Alessandra, Haueisen Jen, Committeri Giorgia, and Comani Silvia more...
- Subjects
Adult ,Male ,Dissociation (neuropsychology) ,Schizotypy ,mental rotations ,perspective taking ,schizotypal disorder ,virtual reality ,Female ,Humans ,Psychological Tests ,Schizotypal Personality Disorder ,Environment ,Imagination ,Pattern Recognition, Visual ,Space Perception ,User-Computer Interface ,Biomedical Engineering ,Medicine (all) ,Population ,Virtual reality ,Pattern Recognition ,Psychological testing ,education ,Virtual actor ,Cued speech ,education.field_of_study ,Novelty ,Psychology ,Visual ,Cognitive psychology ,mental rotation - Abstract
We benefited from the flexibility provided by virtual reality to enhance a classical paradigm on array and self mental rotations and related questions on a set of items. We used this paradigm to investigate how the Level of Schizotypy in nonclinical subjects might influence their behavior in egocentric and allocentric mental transformations. Three elements of novelty were introduced: (i) we separated the phases of mental transformation (Imagined Rotation Phase) and task performance (Task Phase), (ii) we measured the time required for Imagined Rotation Phase and Task Phase separately, and (iii) we cued self-rotations with a virtual human being (self-avatar) or an inanimate object (self-chair). Twenty-four nonclinical participants were categorized in low- and high-schizotypal subjects (Low-S, High-S). A mixed-design analysis of variance showed that High-S were significantly faster than Low-S during the Imagined Rotation Phase (array and self-chair rotations) and during the Task Phase (self-chair). High-S were also faster in the self-chair than in the self-avatar rotation, supporting the existence of a dissociation between perspective changing and perspective taking in High-S. In line with the literature, we found that participant performances decreased with increasing angular difference between the initial and the imagined perspective. more...
- Published
- 2011
9. Virtual Reality and Robotics for Neuro-Motor Rehabilitation of Ischemic Stroke Patients
- Author
-
A. Serio, M. Steinisch, B. M. Guarnieri, Jens Haueisen, and Silvia Comani
- Subjects
medicine.medical_specialty ,Rehabilitation ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,Electromyography ,Electroencephalography ,Neurophysiology ,computer.software_genre ,medicine.disease ,Physical medicine and rehabilitation ,Virtual machine ,medicine ,Physical therapy ,Manual therapy ,Functional magnetic resonance imaging ,business ,computer ,Stroke - Abstract
It is well known that patients undergoing a cerebrovascular attack often experience a partial recovery of the motor function of the upper limbs, despite the application of manual motor therapy. Therefore, several research studies have recently focused on improving the rehabilitation process by using robotic devices and virtual reality. Robot-aided therapy may be capable of overcoming some of the limitations of manual therapy, such as the lack of exact repeatability of the movements and the objective measurement of training progresses. On the other hand, embedding the patient in a virtual environment, which might be personalized not only to his spared abilities but also to his interests, could be more motivating and could provide online bio-feedback about his performance, hence reinforcing the effect of the therapy. Although the preliminary results of those studies are encouraging, they have been limited to small groups of chronic patients. In this project, robot-aided rehabilitation in combination with virtual environments will be used on sub-acute and chronic stroke patients for the first time. This allows not only the evaluation of effectiveness of the advanced treatment and comparison to traditional motor therapy, but will also supply information about the retention of benefits over time. In order to explore the temporal evolution of cortical activity in relation to the degree of functional recovery, functional Magnetic Resonance Imaging (fMRI) will be conducted before, during and after the new rehabilitation therapy. Combined with Electroencephalography (EEG) and Electromyography (EMG) studies, which will be recorded online during treatment, the collected data will provide a basis for a better understanding of the neurobiological and neurophysiological mechanisms that underlie the changes in brain pattern activation after stroke. more...
- Published
- 2009
- Full Text
- View/download PDF
10. Combining a passive robotic device, virtual reality and high-resolution EEG for post-stroke neuro-motor rehabilitation
- Author
-
M.G. Tana, S. Buzzelli, M. Steinisch, G. Cerroni, B. M. Guarnieri, A. Serio, and Silvia Comani
- Subjects
medicine.medical_specialty ,Neurology ,Computer science ,Physiology (medical) ,High resolution eeg ,Post stroke ,Physical therapy ,medicine ,Neurology (clinical) ,General Medicine ,Virtual reality ,Motor rehabilitation - Published
- 2013
- Full Text
- View/download PDF
11. Virtual reality and perspective taking in adults with schizophrenia
- Author
-
Giorgia Committeri, M. Steinisch, Silvia Comani, and M.G. Tana
- Subjects
Psychotherapist ,Neurology ,Physiology (medical) ,Perspective-taking ,Schizophrenia (object-oriented programming) ,Neurology (clinical) ,General Medicine ,Virtual reality ,Psychology - Published
- 2012
- Full Text
- View/download PDF
12. Assessing adverse childhood experiences in young refugees: a systematic review of available questionnaires.
- Author
-
Abdelhamid S, Kraaijenvanger E, Fischer J, and Steinisch M
- Subjects
- Humans, Child, Surveys and Questionnaires, Psychometrics, Adolescent, Refugees psychology, Adverse Childhood Experiences
- Abstract
Today, various questionnaires are available to assess Adverse Childhood Experiences (ACEs) in children; however, it is uncertain if these questionnaires are comprehensive in addressing adversities of vulnerable subgroups, specifically refugee children. This review's objectives are to (1) identify current ACE questionnaires and determine if they are suitable in assessing refugee children's adversities, and (2) identify those previously used within a refugee population. A systematic literature search was conducted across five databases for articles published since 2010, including studies using an ACE-questionnaire that recognized multiple adversities in healthy children and were published in English. A total of 103 ACE questionnaires were identified in 506 studies. Only 14 of the 103 questionnaires addressed a refugee-specific adversity. Their ability to capture refugee children's experiences was limited: available questionnaires used a maximum of three items to assess refugee-specific adversities, covering only a fraction of forms of adversities relevant to refugee children. Psychometric characteristics were rarely reported. In addition, only two ACE questionnaires were used within a refugee population. With the tools currently available, it is not possible to comprehensively assess the exposure to and severity of the adversities faced by refugee children. The perpetuation of ongoing crises necessitates assessing refugee children's adversities to understand how their wellbeing is affected and to identify children at risk., Competing Interests: Declarations. Conflict of interest: The authors declare no conflict of interest. Ethical approval: This is a systematic review; thus, no ethical approval is required., (© 2024. The Author(s).) more...
- Published
- 2024
- Full Text
- View/download PDF
13. [Guidelines Within And For Public Health Services: Results Of An Online Survey On Current Practical Needs].
- Author
-
Arnold L, Steinisch M, Kuehne A, Schwabe A, Jakubowski E, Scholten A, and Stratil JM
- Abstract
Evidence-based guidelines are recognized and well-established in everyday medical practice. However, in the Public Health Service (PHS), evidence-based guidelines are not yet widely available. To promote the development of guidelines within and for the ÖGD, the Federal Joint Committee (GBA) issued a funding directive in June 2024. This study presents the results of an online survey on the prioritization of guideline topics in the ÖGD, conducted by the German Society for Public Health Services (DGÖG). The survey focused on 17 guideline topics proposed by the GBA, which were divided into six task areas. Out of over 900 participants, comprehensive responses from nearly 500 respondents were analyzed, 85% of whom work in local health departments. The results showed that all 17 guideline topics were assigned high or very high priority. Particularly frequently prioritized were the areas of infection hygiene monitoring, medical expert assessment, and psychosocial emergency care. Additionally, experts highlighted dental screening, health literacy on oral health, and monitoring of drinking and bathing water. The qualitative analysis further identified additional relevant topics, including health reporting and planning, health promotion and prevention, child welfare, as well as crisis management and communication. The survey provides insights into the priority topics for guidelines as perceived by practitioners and ÖGD researchers. The results underscore the significant need for evidence-based guidelines in and for the ÖGD and provide valuable insights for further development and prioritization., Competing Interests: Es liegen keine finanziellen oder wirtschaftlichen Interessenkonflikte vor. Aus Gründen der Transparenz möchten wir darauf hinweisen, dass alle AutorInnen Mitglieder der Arbeitsgruppe Evidenz der Deutschen Gesellschaft für Öffentliches Gesundheitswesen e.V. (DGÖG) sind. Diese Zugehörigkeit hatte keinen Einfluss auf das Studiendesign, die Datenerhebung, die Analyse oder die Interpretation der Ergebnisse.The authors declare no financial or economic conflicts of interest related to the content of this manuscript. For transparency, we would like to disclose that all authors are members of the Working Group on Evidence of the German Society of Public Health Services (DGÖG). This affiliation has not influenced the study design, data collection, analysis, or interpretation of the results., (Thieme. All rights reserved.) more...
- Published
- 2024
- Full Text
- View/download PDF
14. Negative and protective experiences influencing the well-being of refugee children resettling in Germany: a qualitative study.
- Author
-
Abdelhamid S, Lindert J, Fischer J, and Steinisch M
- Subjects
- Adolescent, Child, Humans, Qualitative Research, Syria, Iraq, Parents, Parenting
- Abstract
Objective: Conflict, forced migration and searching for safety in a foreign land are all experiences common to refugee children. They experience potentially traumatic events that are distinct from the general population, yet current adverse childhood experience (ACE) studies do not cover these events. Studies that do examine refugee children's experiences typically focus on a single stage of migration or adversities from the community, offering insight into only a fraction of their realities. This study aimed to identify potentially traumatising and protective experiences subjectively perceived as influencing refugee children's well-being from all stages of migration and all socio-ecological levels., Design: Qualitative study with thematic analysis of semi-structured individual and group interviews. Themes were organised within a socio-ecological model., Setting: Non-profit organisations, youth welfare facilities and societies that organise civic engagement for refugee families in the Rhine-Neckar region in Germany provided rooms where interviews could be conducted., Participants: Refugee parents and children who spoke one of the four most common languages of those seeking asylum in Germany in 2018 were included. This study excluded refugees who were not fleeing a conflict area. Forty-seven refugee parents and 11 children (aged 8-17 years) from Syria, Iraq, Palestine, Afghanistan and Eritrea participated., Results: Eight major themes emerged from interviews including six reflecting potentially negative experiences and two potentially protective themes. These themes evolved from experiences such as family dispersion, displacement, rigorous immigration and national policies, as well as constructive parenting and community support., Conclusion: It is increasingly important to identify these diverse experiences as the refugee population continues to grow, and the increased prevalence of poor health outcomes in refugee children continues to be widely documented. Identifying ACEs specifically relevant to refugee children could contribute to understanding potential pathways and could further serve as a starting point for tailored interventions., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.) more...
- Published
- 2023
- Full Text
- View/download PDF
15. Identification of starting points to promote health and wellbeing at the community level - a qualitative study.
- Author
-
Hilger-Kolb J, Ganter C, Albrecht M, Bosle C, Fischer JE, Schilling L, Schlüfter C, Steinisch M, and Hoffmann K
- Subjects
- Adult, Aged, Community-Based Participatory Research, Female, Humans, Male, Middle Aged, Qualitative Research, Health Promotion organization & administration, Residence Characteristics
- Abstract
Background: As health is influenced by the social, economic and environmental conditions in which individuals live, local communities are an ideal setting to promote health and wellbeing. However, up to now various health promotion interventions at the community level have had limited success, perhaps related to an incomplete understanding of local contexts and priorities. We therefore aimed to develop a broader and deeper understanding of topics or issues that were most salient to residents of a South-West German community by exploring their perceptions of needs, challenges, barriers and existing resources related to health and well-being., Methods: As an initial step of a multi-year community-based participatory research project, we conducted semi-structured interviews with key informants (n = 30) from various community settings (e.g., child care, elderly care, businesses, non-profit organizations, village councils, and local government). The terms "health" and "wellbeing" were included in the stem of each question in the semi-structured interview guide to enable a focus on related perceived needs, challenges, barriers and existing resources. Interviews were audiotaped, transcribed verbatim and analyzed using qualitative content analysis techniques., Results: Themes emerging from our interviews appeared to center primarily in three distinct areas: natural resources and built environment, access to services, and social cohesion including subthemes on the importance of social engagement and volunteerism, sense of community, and shared identity., Conclusions: That health and wellbeing were not identified explicitly as a priority by key informants suggests that these should not be presented as the primary focus of a community-wide initiative. Instead themes with a higher priority should be addressed in ways that can lead to better health and wellbeing as a secondary goal. more...
- Published
- 2019
- Full Text
- View/download PDF
16. Work stress and hair cortisol levels among workers in a Bangladeshi ready-made garment factory - Results from a cross-sectional study.
- Author
-
Steinisch M, Yusuf R, Li J, Stalder T, Bosch JA, Rahman O, Strümpell C, Ashraf H, Fischer JE, and Loerbroks A
- Subjects
- Adult, Bangladesh, Cross-Sectional Studies, Female, Humans, Male, Middle Aged, Occupations, Stress, Psychological psychology, Surveys and Questionnaires, Young Adult, Hair chemistry, Hydrocortisone analysis, Stress, Psychological physiopathology, Workplace psychology
- Abstract
Evidence on the association of work stress with cortisol levels is inconsistent and mostly stems from Western countries, with limited generalizability to other regions of the world. These inconsistencies may partly be due to methodological limitations associated with the measurement of cortisol secretion in saliva, serum or urine. The present study set out to explore associations of work stress with long-term integrated cortisol levels in hair among 175 workers of an export oriented ready-made garment (RMG) factory in Dhaka, Bangladesh. Work-related demands (WD), interpersonal resources (IR) and work-related values (WV) were assessed using a psychometrically evaluated interview. WD consisted of four items on physical demands, time pressure, worries about mistakes and exposure to abusive language. IR comprised five items addressing support, recognition, adequate payment, workers' trust in the management, and the management's trust in workers, as perceived by the workers. WV captured job security, promotion prospects and job latitude by three items. Hair cortisol concentrations (HCC) were analyzed by liquid chromatography-mass spectrometry. Stepwise multivariable linear regression models (backward elimination of predictors) were used to estimate associations of HCC with the three work stress components. For significant work stress component(s), further multivariable linear regression analyses were conducted to explore whether, and if so, which individual item(s) contributed most. The mean HCC equaled 3.27 (SD 2.58) pg/mg. HCC were found to be significantly associated with WV (beta=0.209, p=0.021). Additional analyses of the three WV items revealed that this association was largely driven the item on "promotion prospects" (beta=0.230, p=0.007) implying that the perception of good promotion prospects was associated with higher HCC. The finding of elevated HCC with good promotion prospects may initially seem counter-intuitive, but is supported by research documenting that job promotion may result in poorer mental well-being. Moreover, being promoted in the Bangladeshi RMG industry may represent a stressful experience: job promotions are rare in this setting and are associated with the need to meet exceptional job-related demands. Further research from ethnic and culturally diverse occupational settings is needed to test this hypothesis, to shed light on the reproducibility of our findings and to improve our understanding of the psychobiological implications of psychosocial working conditions across cultures and contexts., (Copyright © 2014 The Authors. Published by Elsevier Ltd.. All rights reserved.) more...
- Published
- 2014
- Full Text
- View/download PDF
17. Embodied and disembodied allocentric simulation in high schizotypal subjects.
- Author
-
Vastano R, Sulpizio V, Steinisch M, Comani S, and Committeri G
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Personality, Reaction Time, Surveys and Questionnaires, Virtual Reality Exposure Therapy, Young Adult, Schizotypal Personality Disorder therapy
- Abstract
It is known that non-clinical subjects with high levels of schizotypal personality traits (High-S), as well as schizophrenic patients, have difficulties to judge how a scene would appear (so-called Appearance questions) from a point of view other than their own after having performed a disembodied perspective taking (D-PT, a mental self-rotation cued by an object like a chair). This inability has been defined allocentric simulation deficit. However, it is still unclear whether this inability might also regard an embodied transformation (E-PT), which is a self-rotation cued by another individual in the scene, and whether the observed deficit regards the pure mental transformation phase. In the present study, we took advantage of a virtual reality environment to explore both embodied and disembodied allocentric simulation in healthy volunteers with low and high levels of schizotypal personality traits, as assessed by the Schizotypal Personality Questionnaire. All subjects performed a pure self-rotation cued by a chair (D-PT) or by an avatar (E-PT), or a control array rotation. Each rotation was followed by classical Appearance and Item questions. Results revealed no between-groups differences in the mental transformation phase, while High-S subjects were significantly slower than Low-S subjects in the Appearance task after D-PT, but not after E-PT. Accordingly, higher schizotypy levels (cognitive-perceptual subscale) were positively correlated with slower reaction times in the Appearance task after D-PT. These data suggest the existence of a disembodied allocentric simulation deficit in non-clinical High-S, paving the way to future studies on clinical populations. more...
- Published
- 2014
- Full Text
- View/download PDF
18. Work stress: its components and its association with self-reported health outcomes in a garment factory in Bangladesh-Findings from a cross-sectional study.
- Author
-
Steinisch M, Yusuf R, Li J, Rahman O, Ashraf HM, Strümpell C, Fischer JE, and Loerbroks A
- Subjects
- Adult, Bangladesh, Confidence Intervals, Cross-Sectional Studies, Female, Humans, Male, Odds Ratio, Self Report, Young Adult, Clothing, Industry, Stress, Psychological complications, Workplace psychology
- Abstract
Bangladesh is one of the leading exporters of ready-made garments (RMG) worldwide producing at very low cost almost exclusively for Western markets. Empirical evidence on psychologically adverse working conditions and their association with health in the RMG setting remains sparse. Drawing on insights from previous ethnographic research, we conducted a cross-sectional epidemiological study among 332 RMG workers in Dhaka, Bangladesh. High work-related demands and poor interpersonal resources represented key components of work stress and were important determinants of poor health. The key work stress components observed in this study partly differed from those identified in Western work place settings., (© 2013 The Authors. Published by Elsevier Ltd. All rights reserved.) more...
- Published
- 2013
- Full Text
- View/download PDF
19. A post-stroke rehabilitation system integrating robotics, VR and high-resolution EEG imaging.
- Author
-
Steinisch M, Tana MG, and Comani S
- Subjects
- Algorithms, Biomechanical Phenomena, Brain physiopathology, Brain Mapping, Data Interpretation, Statistical, Female, Gravitation, Humans, Male, Middle Aged, Monitoring, Physiologic, Psychomotor Performance physiology, Stroke physiopathology, Upper Extremity physiology, Young Adult, Electroencephalography instrumentation, Electroencephalography methods, Robotics, Stroke Rehabilitation, User-Computer Interface
- Abstract
We propose a system for the neuro-motor rehabilitation of upper limbs in stroke survivors. The system is composed of a passive robotic device (Trackhold) for kinematic tracking and gravity compensation, five dedicated virtual reality (VR) applications for training of distinct movement patterns, and high-resolution EEG for synchronous monitoring of cortical activity. In contrast to active devices, the Trackhold omits actuators for increased patient safety and acceptance levels, and for reduced complexity and costs. VR applications present all relevant information for task execution as easy-to-understand graphics that do not need any written or verbal instructions. High-resolution electroencephalography (HR-EEG) is synchronized with kinematic data acquisition, allowing for the epoching of EEG signals on the basis of movement-related temporal events. Two healthy volunteers participated in a feasibility study and performed a protocol suggested for the rehabilitation of post-stroke patients. Kinematic data were analyzed by means of in-house code. Open source packages (EEGLAB, SPM, and GMAC) and in-house code were used to process the neurological data. Results from kinematic and EEG data analysis are in line with knowledge from currently available literature and theoretical predictions, and demonstrate the feasibility and potential usefulness of the proposed rehabilitation system to monitor neuro-motor recovery. more...
- Published
- 2013
- Full Text
- View/download PDF
20. Early detection of coronary artery disease in patients studied with magnetocardiography: an automatic classification system based on signal entropy.
- Author
-
Steinisch M, Torke PR, Haueisen J, Hailer B, Grönemeyer D, Van Leeuwen P, and Comani S
- Subjects
- Adult, Aged, Discriminant Analysis, Early Diagnosis, Entropy, Female, Humans, Male, Middle Aged, Reproducibility of Results, Sensitivity and Specificity, Coronary Artery Disease classification, Coronary Artery Disease diagnosis, Magnetocardiography methods, Signal Processing, Computer-Assisted
- Abstract
We propose an automatic system for the classification of coronary artery disease (CAD) based on entropy measures of MCG recordings. Ten patients with coronary artery narrowing ≥ or ≤ 50% were categorized by a multilayer perceptron (MLP) neural network based on Linear Discriminant Analysis (LDA). Best results were obtained with MCG at rest: 99% sensitivity, 97% specificity, 98% accuracy, 96% and 99% positive and negative predictive values for single heartbeats. At patient level, these results correspond to a correct classification of all patients. The classifier's suitability to detect CAD-induced changes on the MCG at rest was validated with surrogate data., (Copyright © 2012 Elsevier Ltd. All rights reserved.) more...
- Published
- 2013
- Full Text
- View/download PDF
21. A virtual environment for egocentric and allocentric mental transformations: a study on a nonclinical population of adults with distinct levels of schizotypy.
- Author
-
Steinisch M, Sulpizio V, Iorio AA, Di Naccio A, Haueisen J, Committeri G, and Comani S
- Subjects
- Adult, Female, Humans, Male, Psychological Tests, Schizotypal Personality Disorder psychology, Environment, Imagination, Pattern Recognition, Visual, Schizotypal Personality Disorder diagnosis, Schizotypal Personality Disorder physiopathology, Space Perception, User-Computer Interface
- Abstract
We benefited from the flexibility provided by virtual reality to enhance a classical paradigm on array and self mental rotations and related questions on a set of items. We used this paradigm to investigate how the Level of Schizotypy in nonclinical subjects might influence their behavior in egocentric and allocentric mental transformations. Three elements of novelty were introduced: (i) we separated the phases of mental transformation (Imagined Rotation Phase) and task performance (Task Phase), (ii) we measured the time required for Imagined Rotation Phase and Task Phase separately, and (iii) we cued self-rotations with a virtual human being (self-avatar) or an inanimate object (self-chair). Twenty-four nonclinical participants were categorized in low- and high-schizotypal subjects (Low-S, High-S). A mixed-design analysis of variance showed that High-S were significantly faster than Low-S during the Imagined Rotation Phase (array and self-chair rotations) and during the Task Phase (self-chair). High-S were also faster in the self-chair than in the self-avatar rotation, supporting the existence of a dissociation between perspective changing and perspective taking in High-S. In line with the literature, we found that participant performances decreased with increasing angular difference between the initial and the imagined perspective. more...
- Published
- 2011
- Full Text
- View/download PDF
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.