Catherine Ludwig

Catherine Ludwig
University of Applied Sciences and Arts Western Switzerland · Geneva School of Health Sciences

PhD in Psychology

About

59
Publications
18,432
Reads
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824
Citations
Citations since 2017
24 Research Items
507 Citations
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
Additional affiliations
February 2013 - present
University of Applied Sciences and Arts Western Switzerland
Position
  • Professor
January 2013 - September 2013
University of Geneva
Position
  • Scientific Collaborator
September 2011 - present
University of Lausanne
Position
  • Lecturer

Publications

Publications (59)
Article
Full-text available
Introduction Home adaptation can be a key contributor to successfully aging at home, allowing older adults to remain in a familiar environment while maintaining their quality of life and well-being despite progressing functional difficulties. Although several theoretical studies on home adaptations exist, the benefits of custom home adaptations rem...
Article
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Background Person-centered care allows for the inclusion of the totality of a person’s needs and preferences, beyond just the clinical or medical aspect. This approach requires the development of tools to allow for the integration of the patient in his/her healthcare. Based on a 30-item tool developed for nurses to evaluate the complexity of home c...
Article
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Background Persons living with dementia face a reduction of their life space outside home and disengagement from participation, linked to places visited. Purpose This study explored stability and change in perceived participation in places visited outside home and its relationship with occupational gaps among older adults. Method Older adults liv...
Article
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Aim Home care nurses often use the Resident Assessment Instrument‐Home Care (interRAI‐HC) to assess health needs. However, this tool does not assess complexity. This study proposes to derive a complexity index (CI) from the interRAI‐HC using the operational definition of the dedicated COMID checklist (COmplexité Multidimensionnelle des prises en so...
Article
Full-text available
The Covid-19 pandemic has brought the concept of frailty back to the centre of debate, particularly for its relevance as a determinant of health outcomes. Frailty is concept that has long been a used gerontology. Today, several theoretical models of frailty are proposed in the literature, with as many tools to operationalize it. This article provid...
Article
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La pandémie de Covid-19 a ramené le concept de fragilité au centre des débats, notamment pour son intérêt dans l’évaluation du pronostic en santé dans un contexte de menace sanitaire. La fragilité est un concept reconnu en gérontologie de longue date. Aujourd’hui, plusieurs modèles théoriques de la fragilité sont proposés dans la littérature, avec...
Article
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Background: Today, the value of screening for frailty among older adults is undisputed; to this endeavor, care at-home professionals are the “frailty whistleblowers” of choice. Yet, they need quick at-hand tools for routine use. To this aim, this study proposes a frailty index (FI) directly derived from the interRAI-HC MDS. The FI is used to assess...
Article
While complexity theory has gradually influenced the field of health and social sciences, it has also had an impact on nursing care by introducing a wealth of terminology into the field. The terms “complex patient,” “complex case,” “complex care,” “complex practice,” and “complex needs” have been proposed to describe different aspects of complexity...
Article
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Une enquête menée à Genève a analysé, pour la première fois, l’état de santé d’un collectif de personnes ne bénéficiant pas des aides sociales auxquelles elles auraient pu prétendre. Les constats sont sans appel.
Article
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Accessing places outside home where activities are performed provides both benefits (e.g. participation in activities), and challenges (e.g. finding one’s way) for people with cognitive deficits. Participation in these places appears to depend on various factors such as the living situation of the person, availability of commodities and supporting...
Article
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Analysis of the reliability of a multidimensional complexity scale instrument (COMID) for home care nurses Introduction : The increasingly frequent mention of complexity by different health care actors challenges the measurement of this construct. The COMID, a tool that helps home nurses to identify complex situations, provides a multidimensional a...
Article
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Background: The early screening of frail individuals and of patients with complex care needs are challenges that countries witnessing population aging face. Homecare nurses are actors of choice in meeting these challenges, yet they need means of identifying frail and complex patients in their routine practice. The fraXity study's aim is to fill th...
Article
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Trotz grosser Armut verzichten einige Menschen auf Sozialleistungen, die ihnen eigentlich zustünden. Leider bleibt dies häufig nicht ohne Auswirkungen auf ihre Gesundheit. Eine Studie aus Genf zeigt erstmals für die Schweiz auf, welche Probleme dabei für die Betroffenen im Vordergrund stehen.
Article
Purpose Regarding the epidemiology of pain in older adults, data are lacking about the association between pain severity and its impact on health-related quality of life (HRQoL). This study was aimed to investigate pain prevalence and sites, self-reported interferences with daily life activities, and the effect of pain severity on HRQoL in a Swiss...
Article
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PurposeThe present study aims at investigating the effects of low back pain (LBP), i.e., type of symptoms, activity limitations, frequency, duration, and severity on health-related quality of life (HRQoL) in a sample of 707 community-dwelling men and women aged ≥ 65 years living in Switzerland. Methods The study is part of a larger survey conducted...
Article
Introduction: in homecare practice, nurses are central actors for the screening of individuals at risks of undernutrition. Context: in Switzerland, homecare nurses estimate the nutritional status of care recipients by means of a standardized geriatric assessment done with the RAI-HC. Aims: The aim of the study is to estimate the diagnostic acc...
Article
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Background The screening of frail individuals at risk for functional health decline and adverse health outcomes lies in the evolving agenda of home care providers. Such a screening can be based on a frailty index (FI) derived from data collected with interRAI instruments used in clinical routines to define care plans. The objective of this study wa...
Article
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Since 2006, Swiss home care services have been advised to use RAI-HC adapted for Switzerland for defining individualized care plans. This instrument surveys a wide array of health domains that can be considered for the derivation an index of frailty (IF) according to the accumulation of deficit perspective. The data were collected in Geneva, Switze...
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This study explores the interrelationships between health-related quality of life and conflict structures in family networks of older adults. Data were derived from a sample of 2,858 elders (aged 65 years and older) from the Vivre/Leben/Vivere study, a large survey addressing family life and health conditions of older people in Switzerland. Conflic...
Article
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The RAI-Home Care: Application, Potentials and Limits in Home Care Practice The demographic aging witnessed in industrialized countries leads actors involved in the health system to revise and adapt aging care models by acting upstream of dependency situations. This paper discusses the potentials and limits of the « Resident Assessment Instrument –...
Article
Full-text available
Purpose Investigation of self-reported of low back pain (LBP) over the last month and associated health-related quality of life (HRQoL) in a sample of a community-dwelling population aged ≥65. Methods Cross-sectional study including older adults selected randomly from population records. Data were collected within a sample stratified by age and sex...
Article
Method: A cross-sectional study was conducted to assess aspects of physical and psychological health in community-dwelling adults aged ≥65 years selected randomly from population records in Switzerland. The sample was stratified by age (65–69 years; 70–74; 75–79; 80–84; 85–89; ≥90) and gender. Participants were interviewed using a comprehensive que...
Article
Purpose: To investigate the relation between age and HRQoL indicators in a community-dwelling population aged 65 years and older. Methods: Data were collected within a sample stratified by age (65-69; 70-74; 75-79; 80-84; 85-89; 90 years and above) and sex and randomly selected in the population records in Switzerland. The EQ-5D was used to asse...
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Selection of action may rely on external guidance or be motivated internally, engaging partially distinct cerebral networks. With age, there is an increased allocation of sensorimotor processing resources, accompanied by a reduced differentiation between the two networks of action selection. The present study examines the age effects on the motor-r...
Article
In this paper, we present the rationale and the design of “Vivre/Leben/Vivere” (VLV), a large interdisciplinary survey looking at the life and health conditions of individuals who are aged 65 and older and living in Switzerland. VLV is of the third survey of a repeated cross-sectional study, previously conducted in 1979 and 1994 in two French-speak...
Article
To date, cognitive intervention research has provided mixed but nevertheless promising evidence with respect to the effects of cognitive training on untrained tasks (transfer). However, the mechanisms behind learning, training effects and their predictors are not fully understood. Moreover, individual differences, which may constitute an important...
Article
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Deficits in the processing of sensory reafferences have been suggested as accounting for age-related decline in motor coordination. Whether sensory reafferences are accurately processed can be assessed based on the bimanual advantage in tapping: because of tapping with an additional hand increases kinesthetic reafferences, bimanual tapping is chara...
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Alpha-band activity (8-13 Hz) is not only suppressed by sensory stimulation and movements, but also modulated by attention, working memory and mental tasks, and could be sensitive to higher motor control functions. The aim of the present study was to examine alpha oscillatory activity during the preparation of simple left or right finger movements,...
Article
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L’invecchiamento cognitivo si caratterizza per una ampia variabilità interindividuale non solo a livello della prestazione comportamentale ma anche, rispetto ai cambiamenti, dipendenti dall’età, a livello chimico, strutturale e funzionale del cervello. Tra le ipotesi oggi avanzate per spiegare le differenze individuali nel mantenimento di un compor...
Article
Cognitive aging is characterized by large interindividual variability at the level of behavioral performance and with respect to age-related modifications in the brain structure, function, and chemistry. The concept of reserve capacity has been proposed to account for differences between individuals in the ability to preserve a functionally and app...
Article
This research examines the effect of time of testing on adult age differences in resistance to interference, working memory, processing speed, and vocabulary. Results show that time of testing modulates age-related differences only in the ability to resist automatic and prepotent responses. Older adults tested in the afternoon were more susceptible...
Article
Individual differences in working memory (WM) have been shown to reflect the ability to control attention in order to prevent interference. This study examines the role of WM capacity in resisting interference in the Hayling task, in samples of younger and older adults. In each age group, high and low WM span individuals had to complete high-cloze...
Article
The Color Stroop Test is consensually considered as a task to assess the efficiency of inhibitory mechanisms. If the Stroop interference effect is largely undisputed, it is also acknowledged that the size of this effect varies as a function of various task manipulations, such as the task format. The aim of the present study was to compare the size...
Article
The present article describes the development, administration, scoring procedure and sampling of a Reading Span Task assessing the controlled attention component of working memory. This task was standardized on a French speaking population of 775 young and older adults. The task holds satisfactory reliability, validity and sensibility and thus appe...
Article
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Functional activation protocols are widely applied for the study of brain-cognition relations. Only few take advantage of the intrinsic characteristics of SPECT, particularly those allowing cognitive assessment outside of the camera, in settings close to the standard clinical or laboratory ones. The purpose of the study was to assess the feasibilit...
Article
The development of brain imaging techniques has opened new perspectives for the study of age-related changes in the neurofunctional bases of behavior. While advancing age is indisputably associated with neuro-structural losses, recent data nonetheless suggest that the aging brain is capable of functional reorganizations. More, some these age-relate...
Article
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Mismatch negativity, an index of automatic cerebral activity in response to novel stimuli, was used to determine the onset of morphosyntactic processing in French. Stimuli were four two-word sentences made up of a pronoun (first or second person) and a verb (first or second person). Verb forms differed only in the inflectional suffix, which made th...
Article
The development of brain imaging techniques has opened new perspectives for the study of age-related changes in the neurofunctional bases of behavior. While advancing age is indisputably associated with neuro-structural losses, recent data nonetheless suggest that the aging brain is capable of functional reorganizations. More, some these age-relate...
Article
Full-text available
The objective of this paper, in line with the other papers of this special issue, is to show the potentialities of combining intelligence research and cognitive psychol-ogy. The development of intelligence is here addressed from two usually separate perspectives, a psychometric one, and a neo-Piagetian one. Two studies are pre-sented. In Experiment...
Article
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To explore relationships between scuba diving activity, brain, and behaviour, and more specifically between global cerebral blood flow (CBF) or cognitive performance and total, annual, or last 6 months' frequencies, for standard dives or dives performed below 40 m, in cold water or warm sea geographical environments. A prospective cohort study was...
Article
It was the goal of this study to determine whether there were age differences specifically associated with the ability to simultaneously execute two tasks, and whether cognitive costs correlated across different situations. Eighty-one young and 86 older adults underwent nine tasks, administered both in single and in dual conditions. Results showed...
Article
The central hypothesis of the study which has been carried out as part of the NRP38 program, is that perturbations of brain energy metabolism are critically involved in the neurodegeneration occurring in Alzheimer's disease (AD) and that they may correlate with early cognitive dysfunctioning. In the present multidisciplinary study we set out to mon...
Article
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Dementia is becoming a major health problem as the population of the Northern Hemisphere ages. Early differential diagnosis between normal cognitive decline and dementia is particularly difficult. If psychometric evaluation can contribute to the diagnosis, quantitative cerebral functional imaging would play an important role. We therefore proposed,...
Article
Full-text available
L'étude a visé à évaluer conjointement l'effet des différences d'âge et des différences individuelles dans la capacité de mémoire de travail, sur la performance dans des tâches duelles, des tâches de mémoire à court et long terme et dans une tâche de résistance à l'interférence. Un plan en groupes extrêmes a été adopté, distinguant quatre groupes d...

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Projects

Projects (5)
Project
The purpose of the project is to develop frailty and complexity computation algorithms based on the RAI-HC and, in doing so, to provide homecare nurses with valid and reliable screening tools for their routine practice. Based on the findings, practice guideline will be proposed as well as recommendations for mounting adapted preventive strategies. The project will contribute to enhancing knowledge on the relation between frailty, a well-known concept in gerontology, and complexity, a concept increasingly referred to in the care literature but that still deserves operational and consensual definitions.
Project
Cette recherche porte sur le non-recours aux prestations sociales financières à Genève. Elle s'intéresse au cas des familles vivant en situation de précarité et ne bénéficiant pas des aides auxquelles elles pourraient prétendre. Le principal objectif de l'étude est de comprendre les rapports que ces pères et ces mères entretiennent avec les institutions, les prestations et les professionnel.e.s du social, en poursuivant l’hypothèse d’un rapport genré à la protection sociale. Les caractéristiques du régime de prestations genevois, la perception du non-recours par les acteurs du réseau social ainsi que la santé subjective des personnes non-recourantes sont aussi analysés.