FreeSurfer is a popular software package to measure cortical thickness and volume of neuroanatomical structures. However, little if any is known about measurement reliability across various data processing conditions. Using a set of 30 anatomical T1-weighted 3T MRI scans, we investigated the effects of data processing variables such as FreeSurfer version (v4.3.1, v4.5.0, and v5.0.0), workstation (Macintosh and Hewlett-Packard), and Macintosh operating system version (OSX 10.5 and OSX 10.6). Significant differences were revealed between FreeSurfer version v5.0.0 and the two earlier versions. These differences were on average 8.8±6.6% (range 1.3–64.0%) (volume) and 2.8±1.3% (1.1–7.7%) (cortical thickness). About a factor two smaller differences were detected between Macintosh and Hewlett-Packard workstations and between OSX 10.5 and OSX 10.6. The observed differences are similar in magnitude as effect sizes reported in accuracy evaluations and neurodegenerative studies.The main conclusion is that in the context of an ongoing study, users are discouraged to update to a new major release of either FreeSurfer or operating system or to switch to a different type of workstation without repeating the analysis; results thus give a quantitative support to successive recommendations stated by FreeSurfer developers over the years. Moreover, in view of the large and significant cross-version differences, it is concluded that formal assessment of the accuracy of FreeSurfer is desirable.

SUMMARYWe examined 170 outpatients, 103 with Alzheimer's disease, 43 with vascular dementia and 24 with various other causes, in order to investigate whether or not depressive symptoms were more likely to occur in dementia patients who had some degree of awareness of their cognitive deterioration. Awareness was rated on a four-point scale that assessed discrepancies between the patient's and the caregiver's history. The level of awareness was significantly related to the severity of dementia but not to depression or to the score on Hamilton's depression scale. However, the score from the item 'psychic anxiety' showed a weak but significant correlation with the level of awareness of one's deficits. It is concluded that intact awareness of deterioration was not clearly related to the development of depression or depressive symptoms in dementia.

SUMMARYBackground Approximately 50% of older individuals perceive themselves as being forgetful. Objective The objective of this review is to get an overview of previous research on the relation between perceived forgetfulness (in the absence of objective memory deficit) and quality of life in older individuals. Findings in previous research might be a starting point for further research and possible future interventions. Methods Scientific papers that investigated the relation between subjective memory complaints and quality of life were searched. Two independent raters scored the articles on their methodology. The methodological quality was taken into account when conclusions were drawn. Results The literature search resulted in 682 articles, of which five studies met the inclusion criteria. Although the five studies differed in their methodology, the findings of the methodologically adequate studies show a relation between memory complaints and a diminished quality of life in the elderly. Conclusions The negative impact that subjective memory complaints can have on quality of life makes it important to acknowledge forgetfulness as a serious issue in the life of older individuals. However, more research is needed to explore the relationship between subjective memory complaints and quality of life, also with regard to the influence of depression and objective memory performance.

BackgroundInformal caregivers of individuals with dementia have an increased risk to face social isolation due to progression of the disease. Online social media interventions might offer a new opportunity to increase access to social support and enhance positive interactions and openness in dementia care networks.ObjectiveThis explorative pilot study describes (1) the development of an online social support intervention Inlife, and (2) the evaluation of the feasibility of this intervention and the measurements to assess its effectiveness.MethodsThe Medical Research Council (MRC) framework guided the development of the online social support intervention. This is a stepwise approach that integrates potential users’ views with the development and validation of the program content. The program was developed by combining (1) individual caregiver interviews (n = 10), (2) focus group sessions with experts and web designers (n = 6), and (3) individual think-aloud tests (n = 2). Subsequently, a pilot study with informal caregivers was conducted (n = 25) to examine the program’s feasibility and preliminary effectiveness. Online self-report measures were completed at baseline and at four follow-up time points.ResultsIn total, 23 participants completed the newly developed Inlife intervention. Despite the high number of low-active users (17/23, 73%), Inlife had a good feasibility score of 7.1 (range: 1–10). The Calendar and Timeline were used most frequently and contributed to better care coordination and positive interactions.ConclusionsAlthough the Inlife platform received a sufficient feasibility rating, the uptake was not optimal. Therefore, the Inlife platform was adapted to limit the number of low-active users and improve user friendliness. Recommendations for additional treatment adherence were provided. The development according to the MRC framework and the sufficient feasibility rating of Inlife formed the basis for a future effectiveness study.