Memory Difficulties (memory + difficulty)

Distribution by Scientific Domains


Selected Abstracts


Differential age-related change of prose memory in older Hong Kong Chinese of higher and lower education

INTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY, Issue 3 2004
T. M. C. Lee
Abstract Background Memory difficulty is one of the most common complaints of older people, with or without psychiatric conditions. It is therefore of utmost important to understand how normal ageing process impacts upon prose memory so as to gain insight into ways to differentiate pathological vs normal age-related changes of the recall of prose observed among older people. Objectives To understand the differential age-related change of prose memory in older Hong Kong Chinese of higher and lower education. Method Forty-eight normal, healthy Cantonese-speaking Chinese were recruited. Seventeen of them were younger, highly educated participants. Among the 31 older people recruited, 19 of them received education comparable with the younger participants and 12 were older people of low education. A prose passage was constructed to measure the different processes of prose memory, including learning efficiency, rate of forgetting, recall accuracy, accuracy of temporal sequence of information recalled, distortions, and recognition memory. Results As expected, ageing affected all the processes of prose memory measured, except the rate of forgetting. Apart from learning efficiency and rate of forgetting, education was observed to modify the effect of ageing on all the processes studied. Conclusions Changes of prose memory associated with ageing and the differential effect of education on prose recall among older people were discussed. The findings seem to suggest that prose memory is a multifaceted construct. Copyright © 2004 John Wiley & Sons, Ltd. [source]


Self-report of memory and affective dysfunction in association with medication use in a sample of individuals with chronic sleep disturbance

HUMAN PSYCHOPHARMACOLOGY: CLINICAL AND EXPERIMENTAL, Issue 8 2000
Mary Pat McAndrews
Abstract Benzodiazepines produce memory disturbance after acute administration. It is not clear whether chronic use of benzodiazepines is hazardous to memory processes. Epidemiological data indicate that a large proportion (10,30 per cent) of individuals with sleep dysfunction take hypnotic aids for a year or longer. The purpose of the present study was to evaluate self-reported memory dysfunction in a sample of individuals who considered their sleep disturbance sufficiently severe to seek investigation in sleep clinics. It was hypothesized that individuals taking benzodiazepines for sleep would report greater perceived everyday memory failures than individuals taking other sleep aids or no medication. Questionnaires were given to 368 individuals referred into the study by investigators in six sleep disorders clinics. All respondents completed a lengthy (700-item) questionnaire, which included scales assessing memory difficulties, affective status and sleep disturbance. Respondents also reported any medication use for sleep problems and duration of use of the current drug. Information on medication use was reported by 289 participants. Fifty-six per cent of respondents reported using some form of psychoactive medication (antidepressants, benzodiazepines, Zopiclone). Twenty-two per cent reported using no medication. Analysis of covariance showed that these medications had no detectable effect on subjective memory difficulties during chronic use, F(4,226)=1·34, p=0·25. Copyright © 2000 John Wiley & Sons, Ltd. [source]


Do older adults presenting with memory complaints wish to be told if later diagnosed with Alzheimer's disease?

INTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY, Issue 5 2006
Paul Elson
Abstract Background Many patients with Alzheimer's disease are not told their diagnosis. Studies have shown that relatives possess mixed views regarding whether or not patients should be told while elderly peers favour disclosure. Recent studies have shown that patients with diagnosed dementia also favour being told. The present study sought the views of patients prior to diagnosis. Method Participants were a consecutive sample of patients aged 65 and over suffering from memory complaints. They were asked what they considered to be causing their memory problems and whether or not they would want to know the cause. They were then specifically asked if they would want to know if diagnosed with Alzheimer's disease and what were their reasons for this. Results Two-thirds of patients were uncertain regarding the cause of their memory difficulties although the remainder did offer some valid explanations. Eighty-six per cent wanted to know the cause while 69% wanted to know if diagnosed with Alzheimer's disease and a variety of reasons were offered to support their preference. Conclusion The majority of older adults presenting to services with memory complaints had little understanding of the potential cause of their problems. Most were nevertheless keen to know the cause, even if this transpired to be Alzheimer's disease. The clinical implications of the findings are discussed and suggestions made for future research. Copyright © 2006 John Wiley & Sons, Ltd. [source]


Delayed neuropsychologic dysfunction after liver transplantation for acute liver failure: A matched, case-controlled study

LIVER TRANSPLANTATION, Issue 10 2002
Elizabeth W. Jackson
Although several studies have identified posttransplant neurologic sequelae in patients with acute liver failure (ALF), the effects of these sequelae on neuropsychologic functioning after transplant is unknown. This study compared neuropsychologic functioning of ALF patients with chronic liver disease patients after liver transplantation. After liver transplantation, seven ALF patients were compared with a matched control group of patients who had been transplanted for chronic liver disease. The patients were matched by gender, age (within 5 years), and time since transplantation (within 2 years). Patients completed a 2-hour battery of tests, which included measures of attention, memory, motor performance, abstract conceptualization, and visuospatial perception. There were no significant differences between the groups on measures of socioeconomic status or education. Significant differences were found on three separate tests: WAIS-III Vocabulary, WAIS-III Similarities, and WMS-III Paired Associate Learning II. Although these tests measure distinct functions (vocabulary knowledge, abstract conceptualization, and delayed verbal recall), they may be influenced by broader verbal functions, such as verbal fluency, conceptualization, and the ability to articulate ideas. When patients were asked what functions had noticeably deteriorated since transplantation, nearly all complained of memory difficulties, and there was no difference between groups. However, more ALF than chronic liver disease (CLD) patients complained of concentration difficulties. The results of this study suggest that ALF patients may experience more neuropsychologic dysfunction after transplant. Further studies are required to expand on these initial observations with the potential to improve patient care and referral to appropriate rehabilitative services. [source]


Fronto-temporal dysregulation in remitted bipolar patients: an fMRI delayed-non-match-to-sample (DNMS) study

BIPOLAR DISORDERS, Issue 4 2009
Jennifer L Robinson
Objectives:, Bipolar disorder is associated with working memory (WM) impairments that persist during periods of symptomatic remission. However, the neural underpinnings of these deficits are not well understood. Methods:, Fifteen clinically remitted bipolar patients and 15 demographically matched healthy controls underwent functional magnetic resonance imaging while performing a novel delayed-non-match-to-sample (DNMS) task. This nonverbal DNMS task involves two conditions, one requiring the organization of existing memory traces (,familiarity'), and one involving the formation of new memory traces (,novelty'). These processes are thought to differentially engage the prefrontal cortex and medial temporal lobe, respectively. Results:, Although behavioral performance did not differ between groups, bipolar patients and controls exhibited significantly different patterns of neural activity during task performance. Patients showed relative hyperactivation in the right prefrontal gyrus and relative hypoactivation in visual processing regions compared to healthy subjects across both task conditions. During the novelty condition, patients showed a pattern of hypoactivation relative to controls in medial temporal regions, with relative hyperactivation in the anterior cingulate. Conclusions:, These findings suggest that disruption in fronto-temporal neural circuitry may underlie memory difficulties frequently observed in patients with bipolar disorder. [source]


Subjective memory decline in healthy community-dwelling elders.

ACTA NEUROLOGICA SCANDINAVICA, Issue 3 2010
What does this complain mean?
Balash Y, Mordechovich M, Shabtai H, Merims D, Giladi N. Subjective memory decline in healthy community-dwelling elders. What does this complain mean? Acta Neurol Scand: 2010: 121: 194,197. © 2009 The Authors Journal compilation © 2009 Blackwell Munksgaard. Objectives,,, Subjective feelings of memory decline are fairly common among the elderly. The causes of this are heterogeneous, and may be related to both affective and cognitive disorders. We attempted to explore the associations between subjective and cognitive measures. Materials and Methods,,, Healthy subjects were studied. They completed questionnaires regarding memory difficulties and lifestyle habits, the Geriatric Depression scale (GDS), and the Spielberger State-Trait Anxiety Inventory. Cognitive functions were tested using the Mini-Mental State Exam and supplemented with NeuroTrax, a computerized neurophysiological battery. Univariate logistic regression model was applied to estimate odd ratios (OR) and 95% confidence intervals of associations. Results,,, Of 341 consecutive non-depressed subjects, 257 participants (75.4%) reported subjective memory decline (SMD). Subjects with and without SMD did not differ in age, gender, education, marital status, employment and life-style. Subjects with SMD had elevated GDS scores (OR = 1.14, 95% CI: 1.003,1.29), white anxiety level showed a tendency to be increased (OR = 1.03, 95% CI: 0.99,1.06). Comparison of cognitive performance has not revealed differences in cognitive domains between subjects with and without SMD. Conclusions,,, SMD in healthy elderly people is associated with sub-clinical depression even among those without objectively measured cognitive decline. [source]