Handwriting graphical parameters analysis in Posterior Cortical Atrophy: A case report.

Posterior Cortical Atrophy (PCA) is a rare neurodegenerative syndrome characterized by an occipital atrophy resulting in a progressive impairment of upper visual functions. The inconsistency of terminology of this pathology makes its diagnosis difficult and delayed. We present a 76-year-old patient with PCA having difficulties in reading, writing, and daily manipulations. The objective was to evaluate the kinematic writing parameters. Linguistic, cognitive-non-linguistic and non-cognitive-non-linguistic graphical tasks were performed. The kinematic parameters extracted were jerk, velocity and pressure. We found a kinematic profile for all these parameters different from what observed in healthy controls and patients with Alzheimer's Disease. This study, through an analysis of writing features never studied before in PCA, shows the interest of handwriting kinematic analysis in the clinical diagnosis of PCA.

Efficacy of a Web App for Cognitive Training (MeMo) Regarding Cognitive and Behavioral Performance in People With Neurocognitive Disorders: Randomized Controlled Trial.

BACKGROUND: Cognitive and behavioral symptoms are the clinical hallmarks of neurocognitive disorders. Cognitive training may be offered to reduce the risks of cognitive decline and dementia and to reduce behavioral symptoms, such as apathy. Information and communication technology approaches, including serious games, can be useful in improving the playful aspect of computerized cognitive training and providing motivating solutions in elderly patients. OBJECTIVE: The objective of this study was to assess the effectiveness of employing the MeMo (Memory Motivation) Web app with regard to cognitive and behavioral symptoms in patients with neurocognitive disorders. METHODS: MeMo is a Web app that can be used on any Web browser (computer or tablet). The training activities proposed in MeMo are divided into the following two parts: memory and mental flexibility/attention. The study included 46 individuals (mean age 79.4 years) with a diagnosis of neurocognitive disorders at the Institut Claude Pompidou Memory Center in Nice. This randomized controlled study compared the evolution of cognition and behavior between patients not using MeMo (control group) and patients using MeMo (MeMo group) for 12 weeks (four sessions per week). Patients underwent memory and attention tests, as well as an apathy assessment at baseline, week 12 (end of the training period), and week 24 (12 weeks after the end of the training sessions). In addition, to assess the impact of high and low game uses, the MeMo group was divided into patients who used MeMo according to the instructions (about once every 2 days; active MeMo group) and those who used it less (nonactive MeMo group). RESULTS: When comparing cognitive and behavioral scores among baseline, week 12, and week 24, mixed model analysis for each cognitive and behavioral score indicated no significant interaction between testing time and group. On comparing the active MeMo group (n=9) and nonactive MeMo group (n=13), there were significant differences in two attention tests (Trial Making Test A [P=.045] and correct Digit Symbol Substitution Test items [P=.045]) and in the Apathy Inventory (AI) (P=.02). Mixed analysis (time: baseline, week 12, and week 24 × number of active days) indicated only one significant interaction for the AI score (P=.01), with a significant increase in apathy in the nonactive MeMo group. CONCLUSIONS: This study indicates that the cognitive and behavioral efficacies of MeMo, a Web-based training app, can be observed only with regular use of the app. Improvements were observed in attention and motivation. TRIAL REGISTRATION: ClinicalTrials.gov NCT04142801; https://clinicaltrials.gov/ct2/show/NCT04142801.

Management of apathy in nursing homes using a teaching program for care staff: the STIM-EHPAD study.

OBJECTIVE: This study aimed to evaluate the effectiveness of a nursing home (NH) staff education to manage apathy in older individuals with a diagnosis of dementia. METHODS: Sixteen NHs agreed to participate, and 230 demented apathetic residents were randomly assigned to the reference group (RG) or the intervention group (IG). IG received a month of weekly 4-h training. Qualitative evaluation was performed through interviews and questionnaires regarding work practices and knowledge about dementia. Quantitative evaluation was at baseline, at the end of the training program (week 4), and 3 months after the end of it with the use of the Neuropsychiatric Inventory (NPI), the Apathy Inventory, and two observation scales. RESULTS: In the qualitative evaluation, very few staff responded to the questionnaire. Concerning the difficulty that managing residents' behavioral symptoms presented, aggressiveness was ranked as the most difficult behavior to manage and apathy as the least difficult. In the quantitative evaluation, the results are as follows. NPI: the IG scores increased from baseline to week 4 more than the RG for symptoms belonging to the affective and the psychotic NPI item subgroup. Apathy Inventory: there was a significant decrease of the emotional blunting score dimension in the IG. Group Observation Scale: significant improvement was observed for the emotional blunting dimension in the IG only. CONCLUSIONS: Apathy is rarely identified as a problem in NH. Emotional blunting was the only dimension sensitive to change. Failure to improve residents' level of interest could be explained by the difficulties encountered in accessing information regarding the subjects' personal interests. But it remains possible to modify residents' emotional reactivity and staff's perceptions of residents' behaviors and emotions.

Are Dementia Patient's Engagement Using Tailored Stimuli the Same? The Apathy Dilemma in Nursing Home Residents.

Background. Apathy is the most frequent behavioural disturbance understanding how apathy drives engagement in resident's activities of interests is a milestone to better understanding and tailored challenging interventions targeting engagement enhancement. Method. Residents aged 60 and older with dementia according to the ICD 10 from four nursing homes in the south east of France. A set of 25 stimuli were used and categorized by participant into Work, Leisure, Family, or Personal categories, an additional "not interested" category was used for comparison of engagement. The participants stimuli allocation was randomized in guided and unguided situations over a two-week period with 15minute interaction for each stimulus (n = 2) of each category (5×(15 min×2)). Clinical trial identifier: NCT01314131. Results. The mean age, 95% confidence interval (CI) of the 40 participants was 85.4 (83.8-87) with a mean MMSE score, CI95% of 17.7 (16.5-19). Analyses revealed a significant superiority effect of guidance over unguided interaction in duration of engagement in all categories of interest except for the stimulus category "family" and all P < .05. Apathetic participants when guided had longer engagement duration in stimulus Leisure and Personal (all P < .01). Conclusion. Guidance and better activities of interest can lead to enhanced engagement time in participants with dementia.

Effects of different learning methods for instrumental activities of daily living in patients with Alzheimer's dementia: a pilot study.

We examined whether errorless learning (EL) and learning by modeling (LM) were more advantageous than trial and error learning (TEL) in the acquisition of instrumental activities of daily living (IADL) in Alzheimer's dementia (AD) patients (n = 14). Using a counterbalanced within-subject design, participants performed 3 learning conditions. EL consisted of straightforward prompts before any action, LM focused on the modeling of each step of the tasks and standard TEL without cues was used as a control condition. The participants had to (re)learn 3 IADL. Repeated-measure analyses during learning and follow-up assessments were performed 1 and 3 weeks after learning. The LM and the EL procedures resulted in significantly better learning compared to TEL, with effect sizes (partial eta squared) of 0.42 and 0.35, respectively. This is the first controlled study to show that (re)learning of IADL is possible in patients with AD using an error-reduction approach.

Non-pharmacological management of behavioural symptoms in nursing homes.

BACKGROUND: Behavioural and psychological symptoms of dementia (BPSD) are often reported in institutions for the elderly. OBJECTIVE: To evaluate the effectiveness of a staff education intervention to manage BPSD in older people with a diagnosis of dementia. METHODS: The trial was conducted in 16 nursing homes; 306 patients with a diagnosis of dementia and presenting BPSD were selected. Nursing homes were randomly allocated to an intervention group or a control group. An 8-week staff education and training programme was conducted in the nursing homes in the intervention group. The main outcome measures were the Cohen-Mansfield Agitation Inventory (CMAI) and an Observation Scale (OS) score. Assessments were done at baseline (W0), at the end of the 'intervention' period (W8) and 12 weeks after (W20). RESULTS: There was a significant decrease in the global CMAI score between baseline and W8 (-7.8; p > 0.01) and between baseline and W20 (-6.5; p > 0.01) in the intervention group but not in the control group. Results of mixed linear models showed that the CMAI global score, the CMAI physically non-aggressive behaviours subscale score and verbally non-aggressive behaviours subscale score significantly decreased in the intervention group (p < 0.001) although there was no significant evolution in the control group. Direct assessment with the OS produced the same pattern of results, with a significant decrease only in the intervention group. CONCLUSION: The intervention reduced BPSD in severely demented nursing home residents and this effect was still present 3 months after the end of the programme.