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1.
Clin Gerontol ; 47(1): 4-16, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-35713408

RESUMO

OBJECTIVES: To examine the feasibility (e.g., completion rate), acceptability (e.g., satisfaction), and participant-reported impact (e.g., memory concerns, behavior change, goal attainment) of a self-guided, e-learning adaptation of a validated, facilitator-guided, in-person memory intervention for older adults. METHODS: Participants were 139 healthy older adults (mean age: 73 ± 7, 73% women). Participation tracking and pre/post questionnaires embedded within the e-learning program were used to assess feasibility, acceptability, and impact. RESULTS: Sixty-eight percent of participants completed the program. Anonymous feedback data indicated a high level of satisfaction with the program, the pace and clarity of the learning modules, and the user interface. Suggested improvements included offering more interaction with others and addressing minor platform glitches. There was a 41% decrease in the prevalence of concern about memory changes from baseline to posttest. The majority of participants reported an increase in use of memory strategies and uptake of health-promoting lifestyle behaviors. All participants reported moderate-to-high satisfaction with personal goal attainment. CONCLUSIONS: The program demonstrated good feasibility, acceptability, and lead to reduction in age-related memory concerns. CLINICAL IMPLICATIONS: Self-guided, e-learning programming shows promise for fostering positive adaptation to age-related memory changes and improving the uptake of evidence-based strategies to promote brain health among older adults.


Assuntos
Instrução por Computador , Humanos , Feminino , Idoso , Idoso de 80 Anos ou mais , Masculino , Estudos de Viabilidade , Encéfalo , Cognição , Promoção da Saúde
2.
Neuropsychol Rehabil ; 32(4): 611-628, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-33203317

RESUMO

TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT02087137.


Assuntos
Envelhecimento , Cognição , Idoso , Encéfalo , Humanos
3.
J Int Neuropsychol Soc ; 27(9): 896-904, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33441202

RESUMO

OBJECTIVES: Many older adults experience memory changes that can have a meaningful impact on their everyday lives, such as restrictions to lifestyle activities and negative emotions. Older adults also report a variety of positive coping responses that help them manage these changes. The purpose of this study was to determine how objective cognitive performance and self-reported memory are related to the everyday impact of memory change. METHODS: We examined these associations in a sample of 94 older adults (age 60-89, 52% female) along a cognitive ability continuum from normal cognition to mild cognitive impairment. RESULTS: Correlational analyses revealed that greater restrictions to lifestyle activities (|rs| = .36-.66), more negative emotion associated with memory change (|rs| = .27-.76), and an overall greater burden of memory change on everyday living (|rs| = .28-.61) were associated with poorer objective memory performance and lower self-reported memory ability and satisfaction. Performance on objective measures of executive attention was unrelated to the impact of memory change. Self-reported strategy use was positively related to positive coping with memory change (|r| = .26), but self-reported strategy use was associated with more negative emotions regarding memory change (|r| = .23). CONCLUSIONS: Given the prevalence of memory complaints among older adults, it is important to understand the experience of memory change and its impact on everyday functioning in order to develop services that target the specific needs of this population.


Assuntos
Atividades Cotidianas , Disfunção Cognitiva , Idoso , Idoso de 80 Anos ou mais , Cognição , Feminino , Humanos , Masculino , Transtornos da Memória , Pessoa de Meia-Idade , Testes Neuropsicológicos , Autorrelato
4.
Aging Ment Health ; 25(3): 567-574, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-31814426

RESUMO

OBJECTIVES: Individuals facing a personal challenge, such as age-related memory changes, may feel that their experiences are abnormal or pathological. Previous qualitative research on a group intervention that focuses on memory changes in older adulthood revealed that one of the greatest benefits derived by participants was the realization that their experience with memory changes was normal. In order to quantify this experience, we developed and validated a new measure, the 26-item Subjective Normalcy Inventory (SNI). METHOD: Reliability and validity were assessed with a sample of 167 community-dwelling adults between the ages of 55 and 90. Questionnaire responsiveness was assessed with an additional sample of 29 older adults who completed a 5-session memory intervention program known to cultivate normalization. RESULTS: The SNI exhibited a two-factor structure, excellent test-retest reliability, ICC = .79, excellent internal consistency, Cronbach's α = .91, and good convergent, |rs| = .46-.58, and discriminant, rs = .02-.06, validity. The measure was also responsive to change, as participants who completed the memory intervention program reported a greater sense of normalcy relative to nonintervention controls, η2p = 0.17. CONCLUSION: The SNI has the potential to provide novel and useful outcome information for interventions designed to improve one's sense of normalcy and may be applied in both clinical and research settings. The SNI can also be modified, validated, and used to assess subjective normalcy with respect to other personal challenges outside of memory and attention changes.


Assuntos
Emoções , Adulto , Idoso , Idoso de 80 Anos ou mais , Humanos , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários
5.
Memory ; 27(7): 931-942, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31020904

RESUMO

The Multifactorial Memory Questionnaire (MMQ) is a participant-reported measure of memory satisfaction, ability, and strategy use. Initially validated with healthy older adults, it has since been used in many different populations and settings for a variety of purposes. We conducted a systematic review and meta-analysis of the measurement properties of the MMQ across multiple, diverse studies. METHODS: The study was designed using the Consensus-Based Standards for the Selection of Health Measurement Instruments and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. We calculated aggregate statistics and evaluated the methodological quality of 29 studies retrieved from PsycINFO, MEDLINE, EMBASE, and Web of Science. RESULTS: Analyses revealed high-quality evidence for internal consistency, stability, measurement error, convergent validity, and known-groups validity of the three MMQ scales. There was moderate-quality evidence for responsiveness and structural validity, with some studies identifying separate factors for internal and external memory strategy use. Measurement properties were similar across languages, participant samples, and study designs. CONCLUSIONS: The MMQ is a valid, reliable, and responsive measure across diverse settings and populations. Future research is needed to determine whether more detailed information can be obtained from the scales, specifically, internal versus external strategy use.


Assuntos
Cognição/fisiologia , Nível de Saúde , Transtornos da Memória/psicologia , Memória , Saúde Global , Humanos , Reprodutibilidade dos Testes , Inquéritos e Questionários , Tradução
6.
Neuropsychol Rehabil ; 29(10): 1600-1610, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29430998

RESUMO

Goal Attainment Scaling (GAS) is widely used as a measure of client-centered outcomes in clinical interventions. There are few well-controlled studies using GAS, however, and this limits the conclusions that can be drawn about the determinants of goal attainment post-intervention. In collaboration with researchers, 67- community-dwelling older adults used GAS to establish individualised goals for lifestyle change and memory strategy use in a randomised controlled trial of a multidimensional memory program (ClinicalTrials.gov: NCT02087137). Participants were allocated to an intervention or no-contact control group. Goal attainment was self-rated by participants at baseline, immediate post-intervention, and six-week follow-up. A mixed-model analysis of variance revealed a main effect of time, but no main effect of group and no interaction between time and group. In both the intervention and control groups, respectively, T-scores increased from baseline (Ms = 37 and 37) to post-intervention (Ms = 52 and 50) and were stable at follow-up (Ms = 52 and 51). Results were similar using ordinal data interpretation. Comparable goal attainment in participants receiving intervention versus no intervention underscores the importance of control groups in evaluation studies utilising GAS as an outcome measure, and supports a possible therapeutic contribution of setting and rating goals with GAS.


Assuntos
Envelhecimento/psicologia , Objetivos , Promoção da Saúde/normas , Memória , Avaliação de Resultados em Cuidados de Saúde , Idoso , Feminino , Humanos , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Autorrelato , Resultado do Tratamento
7.
Aging Ment Health ; 21(9): 895-901, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-27376167

RESUMO

OBJECTIVE: Gain novel, in-depth insight into therapeutic mechanisms, benefits, and impact of a multi-modal behavioral memory intervention for older adults with concerns about memory. METHODS: Participants were11 community-dwelling older adults (aged 63-88) who completed the Memory and Aging Program, an evidence-based multi-modal group intervention for normal age-related memory change. Semi-structured interviews were administered post-intervention. Responses were analyzed using qualitative content analysis until meaningful themes were agreed upon. RESULTS: Analyses revealed a main theme of normalization as the overarching benefit of participation. The mechanism for this comprised both specific intervention content and the process of participating with others. A positive impact of the intervention was demonstrated at emotional (feelings of reassurance, hope, and confidence) and functional (increasing motivation for lifestyle change) levels; for some, there was a direct link between emotion and function. CONCLUSION: This study highlighted a single, prominent therapeutic benefit of normalization, illustrated a dual mechanism for achieving this, and characterized a nuanced inter-relationship of the emotional and functional impact of the intervention for participants. Results support the notion that group behavioral interventions can educate, empower, and promote psychological well-being in older adults and may be an effective avenue to reduce risk of disease and promote sustained functional independence.


Assuntos
Terapia Comportamental/métodos , Envelhecimento Cognitivo/psicologia , Vida Independente/psicologia , Memória , Adaptação Psicológica , Idoso , Idoso de 80 Anos ou mais , Ansiedade/psicologia , Feminino , Grupos Focais , Esperança , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisa Qualitativa
8.
Clin Neuropsychol ; 38(3): 557-587, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-37649186

RESUMO

Objective: Functioning in daily life is an important consideration when differentiating between individuals with normal cognition, mild neurocognitive disorder, and major neurocognitive disorder. Despite this, there is no gold standard measurement approach for assessing functional abilities and few guidelines on how to do so. The objective of this study was to examine neuropsychologists' practices regarding the assessment of functional abilities across the spectrum of memory ability. Method: A total of 278 psychologists who routinely conduct neuropsychological assessments completed an online survey (estimated 15% response rate) querying their practices and perspectives with respect to the assessment of functional abilities. Results: Respondents identified that changes to several components of daily functioning, including activities of daily living, were important when evaluating functional abilities. Respondents reported utilizing a variety of instruments to assess functioning, with an overwhelming majority indicating the use of semi-structured interviews. Although most respondents are satisfied with existing tools, a quarter of respondents felt strongly that there was a need for more instruments of everyday functioning. Respondents further indicated that their recommendations to patients, particularly regarding compensatory strategies and follow-up with other professionals, were informed by results of their functional assessment. Conclusions: Overall, our survey results indicate that neuropsychologists perceive multiple factors of daily life to be important considerations when evaluating functioning, use a variety of techniques to assess functioning, and perceive a need for more measures of functional abilities.


Assuntos
Transtornos Cognitivos , Demência , Humanos , Atividades Cotidianas/psicologia , Testes Neuropsicológicos , Inquéritos e Questionários , Demência/psicologia , Transtornos Cognitivos/psicologia
9.
J Int Neuropsychol Soc ; 19(10): 1087-96, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24044692

RESUMO

The relationship of higher order problem solving to basic neuropsychological processes likely depends on the type of problems to be solved. Well-defined problems (e.g., completing a series of errands) may rely primarily on executive functions. Conversely, ill-defined problems (e.g., navigating socially awkward situations) may, in addition, rely on medial temporal lobe (MTL) mediated episodic memory processes. Healthy young (N = 18; M = 19; SD = 1.3) and old (N = 18; M = 73; SD = 5.0) adults completed a battery of neuropsychological tests of executive and episodic memory function, and experimental tests of problem solving. Correlation analyses and age group comparisons demonstrated differential contributions of executive and autobiographical episodic memory function to well-defined and ill-defined problem solving and evidence for an episodic simulation mechanism underlying ill-defined problem solving efficacy. Findings are consistent with the emerging idea that MTL-mediated episodic simulation processes support the effective solution of ill-defined problems, over and above the contribution of frontally mediated executive functions. Implications for the development of intervention strategies that target preservation of functional independence in older adults are discussed.


Assuntos
Envelhecimento , Função Executiva/fisiologia , Memória Episódica , Resolução de Problemas/fisiologia , Adolescente , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Feminino , Humanos , Masculino , Testes Neuropsicológicos , Estatística como Assunto , Adulto Jovem
10.
Can J Aging ; 41(4): 647-656, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35256025

RESUMO

Online interventions for older adults should be tailored to their unique needs to increase the efficacy of and adherence to the intervention. The agile development cycle is a dynamic model to solicit and incorporate feedback from older adults during the design process. We combined this approach with the framework of Harvard University's clinical and translational phases that provide a clear structure for evaluating new health programs before they are offered in the community. We based our online memory program on the empirically validated in-person Memory and Aging Program. The aim of the present study was to combine the agile development cycle with the clinical and translational phases framework to develop and pilot an online memory program tailored to the unique needs of older adults. Study 1 involved piloting individual program modules on site and integrating participant feedback into the program's design to optimize usability. Study 2 involved two sequential pilots of the program accessed remotely to evaluate preliminary clinical outcomes and obtain feedback for iterative modifications. Plans for further validation and limitations are discussed. The successful application of the agile development cycle implemented in this series of studies can be adapted by others seeking to offer online content for targeted end users.


Assuntos
Promoção da Saúde , Nível de Saúde , Humanos , Idoso
11.
Can J Aging ; 41(4): 531-539, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35726601

RESUMO

This study examines whether memory intervention programs can mitigate health care costs. Research suggests these programs translate to a decreased intention of older adults who are worried about age-normal memory changes to seek traditional outlets for medical/psychiatric help. We employed a cost-benefit analysis approach to analyze the effectiveness of a memory intervention program within Ontario. We leveraged estimates of decreased intentionality to seek physician care following a community-based memory intervention with physician billing profiles to calculate the potential cost savings to the province's health care system. The intervention studied was found to reduce provincial health care spending by $6,094 per program group. This amount exceeds $121.25 in direct costs per attendee associated with administering five program sessions. This analysis justifies further research on how community-based memory and aging programs can offer low-cost solutions to help individuals cope with subjective memory complaints and assist the health care system in prioritizing care for aging patients.


Assuntos
Nível de Saúde , Humanos , Idoso , Análise Custo-Benefício , Ontário
12.
Neuropsychology ; 36(4): 243-265, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35238602

RESUMO

OBJECTIVE: Adults with acquired brain injury (ABI) often experience memory impairments that are persistent and difficult to treat. Although evidence has shown that rehabilitation programs may improve cognitive performance in persons with ABI, there is an opportunity to look more closely at the benefits provided by specific interventions. We conducted a systematic review and meta-analysis to evaluate whether compensation-based memory programs improve memory or everyday outcomes (e.g., mood, quality of life, community integration, everyday functioning). METHOD: The review was limited to published, English-language controlled trials that evaluated compensatory memory interventions for adults (18 +) with ABI using at least one memory or everyday outcome. The final search was conducted in April 2021 using PsychINFO, Medline, EMBASE, the Cochrane Review database, Google Scholar, and the reference lists of relevant articles. RESULTS: Of 2,817 identified articles, 22 controlled trials met inclusion criteria, of which 12 provided sufficient data to include in the meta-analyses. Risk of bias assessment identified problems with recruitment and masking procedures. Results indicate that compared to controls, these interventions produce positive effects on outcomes of immediate verbal recall (g = 0.43), participant-reported memory (g = 0.28), and strategy use (g = 0.39) and that these improvements are maintained at follow-up. CONCLUSIONS: Compensatory memory programs produce meaningful memory improvements and are a promising avenue for reducing ABI-related memory impairment. Future research focusing on specific subsets of ABI populations and a broader range of participant-reported outcomes is needed. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Lesões Encefálicas , Qualidade de Vida , Adulto , Lesões Encefálicas/complicações , Lesões Encefálicas/reabilitação , Humanos , Transtornos da Memória/etiologia , Transtornos da Memória/terapia , Qualidade de Vida/psicologia
13.
J Alzheimers Dis ; 82(1): 435-445, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34024823

RESUMO

BACKGROUND: Subjective cognitive decline (SCD) is associated with increased risk of developing Alzheimer's disease (AD). However, the underlying mechanisms for this association remain unclear. Neuroimaging studies suggest the earliest AD-related changes are large-scale network disruptions, beginning in the posterior default mode (pDMN) network. OBJECTIVE: To examine the association between SCD and pDMN network connectivity with medial temporal lobe (MTL) regions using resting-state functional magnetic resonance imaging. METHODS: Forty-nine participants with either SCD (n = 23, 12 females; mean age: 70.7 (5.5)) or who were cognitively unimpaired (CU; n = 26, 16 females, mean age: 71.42 (7.3)) completed the Memory Functioning Questionnaire, a measure of subjective memory, and underwent resting state functional MRI at 3 Tesla. Functional connectivity between the posterior cingulate cortex (PCC), as the key pDMN node, and MTL regions were compared between SCD and CU groups. Further, the association between pDMN-MTL connectivity and the Frequency of Forgetting subscale of the Memory Functioning Questionnaire was examined. RESULTS: Connectivity between the PCC-MTL was observed in the CU group but was absent in SCD (t(47) = 2.69, p = 0.01). Across all participants, self-perception of frequency of forgetting, but not objective memory, was strongly correlated with connectivity between the PCC-left parahippocampal gyrus (r = 0.43, p = 0.002). CONCLUSION: These findings support the hypothesis that increased AD risk in SCD may be mediated by disrupted pDMN-parahippocampal connectivity. In addition, these findings suggest that frequency of forgetting may serve as a potential biomarker of SCD due to incipient AD.


Assuntos
Disfunção Cognitiva/diagnóstico por imagem , Rede de Modo Padrão/diagnóstico por imagem , Giro do Cíngulo/diagnóstico por imagem , Transtornos da Memória/diagnóstico por imagem , Giro Para-Hipocampal/diagnóstico por imagem , Lobo Temporal/diagnóstico por imagem , Idoso , Disfunção Cognitiva/fisiopatologia , Rede de Modo Padrão/fisiopatologia , Autoavaliação Diagnóstica , Feminino , Neuroimagem Funcional , Giro do Cíngulo/fisiopatologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Transtornos da Memória/fisiopatologia , Pessoa de Meia-Idade , Vias Neurais/diagnóstico por imagem , Vias Neurais/fisiopatologia , Giro Para-Hipocampal/fisiopatologia , Lobo Temporal/fisiopatologia
14.
Arch Clin Neuropsychol ; 36(4): 626-631, 2021 May 21.
Artigo em Inglês | MEDLINE | ID: mdl-33067996

RESUMO

OBJECTIVE: To examine known-groups validity of a telephone administration of the total learning scores of the Rey Auditory Verbal Learning Test (RAVLT) in discriminating between people with subjective cognitive decline (SCD) and amnestic mild cognitive impairment (aMCI) and convergent validity of the telephone-RAVLT. METHOD: In total, 83 older adults (age = 71.4 ± 7.0) with SCD or aMCI completed the RAVLT learning trials over the telephone and the Hopkins Verbal Learning Test (HVLT) in-person. RESULTS: Telephone-RAVLT total recall significantly correlated with HVLT total recall (r = .49, p < .001). Significant between group differences were found (effect size = 0.94). CONCLUSIONS: This study provides support for known-groups and convergent validity of the telephone-RAVLT.


Assuntos
Disfunção Cognitiva , Testes de Memória e Aprendizagem , Idoso , Disfunção Cognitiva/complicações , Disfunção Cognitiva/diagnóstico , Humanos , Pessoa de Meia-Idade , Testes Neuropsicológicos , Telefone , Aprendizagem Verbal
15.
Psychol Aging ; 34(4): 587-597, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30896195

RESUMO

A number of memory-strategy training interventions have been developed to target and reduce the impact of normal age-related memory decline. Most outcome studies to date have used objective memory measures to evaluate the efficacy of such interventions. Participant-reported outcomes, well-suited to capture the extent to which such interventions address the expressed concerns of aging persons, have been less closely examined. We conducted a systematic review and meta-analysis to examine whether memory-strategy training interventions improve participant-reported outcomes in healthy older adults with age-related memory changes. Of 536 identified articles, a total of 18 randomized controlled trials met the inclusion criteria for the review, and 15 of these provided relevant data to include in the meta-analyses. A systematic risk of bias assessment identified common problems with recruitment and masking procedures. Results from the meta-analyses indicate that memory interventions produce positive effects on several participant-reported outcomes, including improvements in perceived memory ability, memory self-efficacy, strategy use, memory-related affect, psychological well-being, and quality of life. Memory-strategy training interventions have a meaningful perceived impact on healthy older adults experiencing age-related memory changes. Future research utilizing stronger study designs (e.g., masking participants and study staff) and more closely investigating everyday functional impact is needed. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Assuntos
Memória/fisiologia , Medidas de Resultados Relatados pelo Paciente , Qualidade de Vida/psicologia , Idoso , Idoso de 80 Anos ou mais , Envelhecimento , Feminino , Voluntários Saudáveis , Humanos , Masculino
16.
Can J Aging ; 38(2): 245-252, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30522534

RESUMO

ABSTRACTHearing loss is highly prevalent in older adults and can pose challenges for neuropsychologists, as assessment and intervention procedures often involve orally presented information which must be accurately heard. This project examined the hearing status of 20 clients (mean age = 71 years) in a hospital-based outpatient neuropsychology clinic, and explored whether information about hearing loss informed neuropsychologists' clinical practice. A research assistant administered a brief hearing screening test to each participant. Four treating neuropsychologists were asked to comment on their client's hearing status before and after being shown their client's hearing screen test results. Screening revealed that the majority of participants had at least mild hearing loss, and that the neuropsychologists were relatively accurate (60%) at estimating their clients' hearing status. Neuropsychologists used information about a client's hearing status to make recommendations that clients pursue audiologic services, and to educate clients and family members about hearing loss and communication.


Assuntos
Perda Auditiva/diagnóstico , Testes Auditivos , Adulto , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/fisiologia , Estudos de Viabilidade , Feminino , Perda Auditiva/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Neuropsicologia , Ambulatório Hospitalar
17.
Clin Neuropsychol ; 32(6): 1068-1083, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-28829248

RESUMO

OBJECTIVE: Prospective memory is the ability to 'remember to remember' and a facet of memory important to everyday functioning. For older adults, prospective memory slips are a common concern. In the present study, we conducted an initial validation of a paper-and-pencil adaptation of the Actual Week test, and reported on internal consistency, inter-rater and test-retest reliability, convergent and divergent validity, as well as veridicality of the task. METHOD: Fifty-eight healthy, community-dwelling older adults were recruited from a larger randomized controlled trial and tested at baseline. The Actual Week test was a naturalistic five-day prospective memory task where participants were assigned eight hypothetical tasks to remember per day for five days. Tasks were either time-cued or event-cued and regular (i.e. occurring daily) or irregular (i.e. varied each day). The proportion of tasks that were recorded as on time and accurate was used as the primary measure of performance. RESULTS: The Actual Week test had good internal consistency (Kuder-Richardson: r > .8), intra-test (intraclass correlation: α > .9) and test-retest reliability (r = .76). There was also evidence for convergent and divergent validity. Task performance was associated with age, but not years of education or sex. CONCLUSION: The Actual Week test demonstrated strong psychometric qualities and promising evidence for validity as a performance-based measure of everyday prospective memory in older adults. Avenues for future studies include extending the evidence for convergent validity and evaluating feasibility and utility with other clinical populations.


Assuntos
Sinais (Psicologia) , Memória Episódica , Testes Neuropsicológicos/normas , Desempenho Psicomotor/fisiologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Rememoração Mental/fisiologia , Pessoa de Meia-Idade , Psicometria , Reprodutibilidade dos Testes
19.
Neuropsychologia ; 90: 110-6, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27297728

RESUMO

Elevations in intraindividual variability (IIV) are an indicator of neurocognitive compromise and are seen on reaction time tasks in individuals with mild cognitive impairment (MCI). We examined IIV on memory tasks known to be sensitive to early cognitive change in a group of 24 individuals with amnestic MCI and 21 matched controls. Traditional measures of accuracy and speed, as well as indices of IIV statistically purified for systematic between-group and trial effects, were derived from performance on two computer-based associative recognition tests of word-word and face-name pairs. Accuracy and speed were reduced and IIV was elevated in the MCI group compared to controls on both tasks. Logistic regression analyses demonstrated that IIV, but not speed, was a unique predictor of group membership, over and above performance accuracy. Observed elevations in IIV in MCI are congruent with the notion that IIV may reflect disturbance in distributed neural networks, including medial temporal regions, in addition to frontal systems dysfunction. Present findings have diagnostic implications for accurate identification of individuals with MCI and add to the growing literature on IIV as an early indicator of cognitive decline in older adults.


Assuntos
Amnésia/complicações , Aprendizagem por Associação/fisiologia , Transtornos Cognitivos/etiologia , Individualidade , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Testes Neuropsicológicos , Escalas de Graduação Psiquiátrica , Tempo de Reação , Reconhecimento Psicológico , Vocabulário
20.
Front Psychol ; 6: 1076, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26284000

RESUMO

The multimedia design of presentations typically ignores that younger and older adults have varying cognitive strengths and weaknesses. We examined whether differential instructional design may enhance learning in these populations. Younger and older participants viewed one of three computer-based presentations: Audio only (narration), Redundant (audio narration with redundant text), or Complementary (audio narration with non-redundant text and images). Younger participants learned better when audio narration was paired with relevant images compared to when audio narration was paired with redundant text. However, older participants learned best when audio narration was paired with redundant text. Younger adults, who presumably have a higher working memory capacity (WMC), appear to benefit more from complementary information that may drive deeper conceptual processing. In contrast, older adults learn better from presentations that support redundant coding across modalities, which may help mitigate the effects of age-related decline in WMC. Additionally, several misconceptions of design quality appeared across age groups: both younger and older participants positively rated less effective designs. Findings suggest that one-size does not fit all, with older adults requiring unique multimedia design tailored to their cognitive abilities for effective learning.

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