Home › Research › Getting a diagnosis
Behavioural and cognitive profiles in frontotemporal dementia and Alzheimer’s disease: a longitudinal study
Xin Zhang, Muireann Irish, Olivier Piguet, Rebekah M. Ahmed. Journal of Neurology, 2025-03-21
Topic: Risk, prevention and care in population studies
Linear mixed modelling of time effects found progression of all CBI-R domains, aside from sleep, beliefs and mood domains, and all ACE-III domains. Modelling of group effects found that bvFTD had greater symptoms than AD in most CBI-R domains. Notably, SDL and SDR compared differently with AD and bvFTD; whilst SDR did not differ significantly from bvFTD in any CBI-R domain, SDL had less severe symptoms than bvFTD in everyday skills, motivation, sleep and eating habits; whilst SDL had greater disturbances in abnormal behaviour and stereotypic behaviour than AD, SDR had greater disturbances in addition in motivation and eating habits. Motivation, eating habits, abnormal behaviour and stereotypic behaviour were the most frequently different behavioural domains between groups. We have shown that the combined, longitudinal use of existing behavioural and cognitive assessments could capture distinct clinical profiles of common and rare dementia syndromes. Our findings also highlight the importance of select behavioural domains such as motivation and the usefulness of separate clinical characterisations of SDL and SDR.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Zhang, X., Irish, M., Piguet, O., & Ahmed, R. M. (2025). Behavioural and cognitive profiles in frontotemporal dementia and Alzheimer’s disease: a longitudinal study. Journal of Neurology. https://doi.org/10.1007/s00415-025-13025-z
Vancouver
Zhang X, Irish M, Piguet O, Ahmed RM. Behavioural and cognitive profiles in frontotemporal dementia and Alzheimer’s disease: a longitudinal study. Journal of Neurology. 2025. doi:10.1007/s00415-025-13025-z. PMID: 40116949.
BibTeX
@article{zhang2025-40116949,
author = {Zhang, Xin and Irish, Muireann and Piguet, Olivier and Ahmed, Rebekah M.},
title = {{Behavioural and cognitive profiles in frontotemporal dementia and Alzheimer’s disease: a longitudinal study}},
journal = {Journal of Neurology},
year = {2025},
doi = {10.1007/s00415-025-13025-z},
pmid = {40116949},
url = {https://doi.org/10.1007/s00415-025-13025-z}
}
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. Check the citation against the original before you use it.
Key findings
- Linear mixed modelling of time effects found progression of all CBI-R domains, aside from sleep, beliefs and mood domains, and all ACE-III domains.
- Modelling of group effects found that bvFTD had greater symptoms than AD in most CBI-R domains.
- Notably, SDL and SDR compared differently with AD and bvFTD; whilst SDR did not differ significantly from bvFTD in any CBI-R domain, SDL had less severe symptoms than bvFTD in everyday skills, motivation, sleep and eating habits; whilst SDL had greater disturbances in abnormal behaviour and stereotypic behaviour than AD, SDR had greater disturbances in addition in motivation and eating habits.
- Motivation, eating habits, abnormal behaviour and stereotypic behaviour were the most frequently different behavioural domains between groups.
- We have shown that the combined, longitudinal use of existing behavioural and cognitive assessments could capture distinct clinical profiles of common and rare dementia syndromes.
Why it matters
This longitudinal study found that combined behavioural and cognitive assessments can capture distinct clinical profiles of frontotemporal dementia and Alzheimer's disease. It is about clinical characterisation, not treatment, cure, or prevention.
New to this subject? Start with our plain-English guide: Getting a diagnosis →
Study details
- Study designlongitudinal study
- Evidence strengthModerate
How this study scored 48/100
Published in a peer-reviewed journal, and it is a longitudinal study following the same people over time. Scored zero for sample size, effect reported, studied in people and randomised / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Journal of Neurology) |
| Journal's citation record | 2 / 4 | Journal of Neurology: journal h-index 208 (OpenAlex, 2026-10-29) |
| Study design | 7 / 12 | A longitudinal study following the same people over time |
| Strength of evidence | 3 / 5 | Rated “moderate” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 4 / 5 | 2025 — within 3 year(s) of the newest study here |
| Sample size | 0 / 4 | Participant count not stated — scores zero (not stated in the record — scored 0) |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 0 / 3 | Not stated whether this was studied in people — scores zero (not stated in the record — scored 0) |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 1 / 7 | Cited 3 times (OpenAlex, 2026-10-10) |
| Citations per year | 1 / 5 | 1.0 citations a year over 3 year(s) since 2025 |
| Impact for its field and year | 2 / 6 | Cited 1.9× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 0 / 6 | No other study in this library cites it |
| Still being cited | 1 / 4 | Cited 3 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 2 / 4 | Last-listed author Rebekah M. Ahmed: h-index 37 (OpenAlex, whole career) |
| Institution's track record | 2 / 3 | University College London: institution h-index 2,029 (OpenAlex) |
| Multi-centre collaboration | 2 / 3 | OpenAlex lists 4 institution(s) in 2 countries |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 40116949) |
| Free to read | 2 / 2 | Free to read |
| Total | 48 / 100 | — |
What each of these 20 components measures, and what this score is not →
Read the original
- DOI: 10.1007/s00415-025-13025-z
- PubMed: 40116949
- Original source →
- Free full text: Journal of Neurology →
Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).
Studies this one cites
Referenced by this study and also in the alzhub library, so you can read them here.
Related studies in Getting a diagnosis
Also tagged “prevalence”
1,224 studies in the library carry the topic tag “prevalence”; these are this study's neighbours in a fixed, alphabetical-by-hash tour of them, not the closest in content. All 1,224 tagged studies.