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Research

28,180 Alzheimer's and dementia studies in plain English, each scored out of 100.

Find studies

Showing 1–25 of 117 studies in Brain scans and imaging · tagged Other Dementias (page 1 of 5) · 28,180 in the whole library · How the 0–100 score works

Download bibliography of these 117 studies, in this order: BibTeX (.bib) · RIS (.ris)

Browse by subject, author or institution

Each number is how many studies that link shows, with your other filters kept.

Other subjects

Authors

Names as each record prints them; the same person can appear under two spellings.

Institutions

From OpenAlex; 13,658 studies have no institution on record and are not counted here.

What “Brain scans and imaging” covers

Brain scans and imaging — MRI, PET and other scans: what they show, how early, and how reliably.

A note on reading research. One study is rarely the final word.

We try to note the size of a study, whether it was in humans or animals, and how early-stage the finding is. If a summary here doesn't make that clear, treat it with extra caution and check the original source.

Resting-state fMRI in Parkinson's disease patients with cognitive impairment: A meta-analysis

✓ Peer-reviewed alzhub usefulness score 75 out of 100. Parkinsonism & related disorders 2018-12-17

Seventeen studies with cognitively impaired Parkinson's disease patients were included consisting of 222 Parkinson's disease patients with mild cognitive impairment, 68 patients with Parkinson's disease dementia, 289 cognitively unimpaired Parkinson's disease patients and 353 healthy controls. 4 key findings →

Design: meta-analysis Participants: 68 Evidence: high

Full summary, score breakdown and related studies → Original source

Quantification of [18 F]florbetaben amyloid-PET imaging in a mixed memory clinic population: The ABIDE project

✓ Peer-reviewed alzhub usefulness score 70 out of 100. Alzheimer's & dementia : the journal of the Alzheimer's Association 2022-12-07

CL was associated with syndromic (F = 4.42, p = 0.014) and etiological diagnosis (F = -12.66, p < 0.001), with Alzheimer's disease (AD) patients showing the highest amyloid burden (62.9 ± 27.5), followed by dementia with Lewy bodies (DLB) (25.3 ± 35.5) and cardiovascular disease (CVD) (16.7 ± 24.5), and finally frontotemporal lobe degeneration (FTLD) (5.0 ± 17.22, t = -12.66, p < 0.001). 4 key findings →

Design: longitudinal study Participants: 157 Evidence: moderate

Full summary, score breakdown and related studies → Original source

Amyloid deposition in Parkinson's disease and cognitive impairment: a systematic review

✓ Peer-reviewed alzhub usefulness score 64 out of 100. Movement disorders : official journal of the Movement Disorder Society 2015-04-16

Substantial variability occurs in the prevalence of "PiB-positive" studies in subjects with Parkinsonism and cognitive impairment. 2 key findings →

Design: systematic review Evidence: high

Full summary, score breakdown and related studies → Original source Free full text

Longitudinal Tau Positron Emission Tomography in Dementia with Lewy Bodies

✓ Peer-reviewed alzhub usefulness score 64 out of 100. Movement disorders : official journal of the Movement Disorder Society 2022-03-08

The annual increase of flortaucipir SUVr was greater in the middle and superior occipital, fusiform, and inferior parietal cortices in DLB (mean: 0.017, 0.019, 0.019, and 0.015, respectively) compared with the CU (mean: -0.006, -0.009, -0.003, and - 0.005, respectively; P < 0.05). 5 key findings →

Design: longitudinal study Participants: 22 Evidence: moderate

Full summary, score breakdown and related studies → Original source

Dementia with Lewy bodies and Alzheimer disease: neurodegenerative patterns characterized by DTI

✓ Peer-reviewed alzhub usefulness score 63 out of 100. Neurology 2010-06-01

Increased amygdalar diffusivity in the absence of tissue loss in dementia with Lewy bodies (DLB) may be related to microvacuolation, a common pathology associated with Lewy body disease in the amygdala. 3 key findings →

Design: case-control study Participants: 30 Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

Resting bold fMRI differentiates dementia with Lewy bodies vs Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 62 out of 100. Neurology 2011-04-27

Changes in functional connectivity in DLB indicate patterns of activation that are distinct from those seen in AD and may improve discrimination of DLB from AD and cognitively normal individuals. 3 key findings →

Design: longitudinal study Participants: 88 Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

Prodromal autonomic symptoms and signs in Parkinson's disease and dementia with Lewy bodies

✓ Peer-reviewed alzhub usefulness score 59 out of 100. Movement disorders : official journal of the Movement Disorder Society 2013-03-28

Pathologic staging systems suggest that autonomic dysfunction may be an early manifestation of Parkinson's disease and dementia with Lewy bodies. 2 key findings →

Design: prospective cohort Participants: 91 Evidence: moderate

Full summary, score breakdown and related studies → Original source

An autoradiographic evaluation of AV-1451 Tau PET in dementia

✓ Peer-reviewed alzhub usefulness score 57 out of 100. Acta neuropathologica communications 2016-06-13

Reduced AV-1451 binding in neuritic pathology compared to neurofibrillary tangles suggests that the maturity of tau pathology may affect AV-1451 binding and suggests complexity in AV-1451 binding. 4 key findings →

Participants: 38 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

18 F-flortaucipir tau positron emission tomography distinguishes established progressive supranuclear palsy from controls and Parkinson disease: A multicenter study

✓ Peer-reviewed alzhub usefulness score 57 out of 100. Annals of neurology 2017-10-01

18 F-flortaucipir uptake was elevated in PSP versus controls and PD patients in a pattern consistent with the expected distribution of tau pathology. 3 key findings →

Participants: 33 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Pathogenesis of cerebral microbleeds: In vivo imaging of amyloid and subcortical ischemic small vessel disease in 226 individuals with cognitive impairment

✓ Peer-reviewed alzhub usefulness score 57 out of 100. Annals of neurology 2013-03-12

Parietal and occipital lobar CMBs counts were higher in PiB(+) ADCI with moderate WMH than PiB(+) ADCI with minimal WMH, whereas PiB(-) patients with SVCI (ie, "pure" SVCI) showed both lobar and deep CMBs. 3 key findings →

Participants: 226 Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

Blood-brain barrier breakdown in Alzheimer disease and other neurodegenerative disorders

✓ Peer-reviewed alzhub usefulness score 56 out of 100. Nature reviews. Neurology 2018-01-29

The blood-brain barrier (BBB) is a continuous endothelial membrane within brain microvessels that has sealed cell-to-cell contacts and is sheathed by mural vascular cells and perivascular astrocyte end-feet. 1 key finding →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Hypoperfusion in frontotemporal dementia and Alzheimer disease by arterial spin labeling MRI

✓ Peer-reviewed alzhub usefulness score 56 out of 100. Neurology 2006-10-01

Frontotemporal dementia and Alzheimer disease display different spatial distributions of hypoperfusion on arterial spin labeling MRI. 2 key findings →

Design: cross-sectional Participants: 21 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Tau forms in CSF as a reliable biomarker for progressive supranuclear palsy

✓ Peer-reviewed alzhub usefulness score 55 out of 100. Neurology 2008-10-29

Tau form ratio was significantly reduced in patients with PSP (0.504 +/- 0.284) when compared to age-matched controls (0.989 +/- 0.343), and to patients with other neurodegenerative conditions (range = 0.899-1.215). 2 key findings →

Participants: 166 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Idiopathic rapid eye movement sleep behaviour disorder: diagnosis, management, and the need for neuroprotective interventions

✓ Peer-reviewed alzhub usefulness score 55 out of 100. The Lancet. Neurology 2016-04-01

Idiopathic rapid eye movement (REM) sleep behaviour disorder (IRBD) manifests as unpleasant dreams and vigorous behaviours during REM sleep that can result in injuries. 1 key finding →

Design: longitudinal study Evidence: moderate

Full summary, score breakdown and related studies → Original source

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Where “Free full text” comes from

Free full text links and the Full text may need a subscription label come from Unpaywall, Europe PMC and OpenAlex records of free copies, checked 10 Oct 2026. A study with neither is unknown, not paywalled. Show only studies that are free to read

How the 0–100 score works — and why some entries are capped

This is alzhub's own score. It is not an official metric, not an impact factor, and no journal, publisher or ranking body endorses it. We built it so that a reader who is not a scientist can tell a landmark trial from a conference abstract without having to already know the difference. Every point comes from one of 20 components, all of them printed on the study itself, so you can disagree with our arithmetic rather than having to trust the total.

  • Journal tier up to 10 pts
  • Journal's citation record up to 4 pts
  • Study design up to 12 pts
  • Strength of evidence up to 5 pts
  • Peer-review validation up to 10 pts
  • How recent up to 5 pts
  • Sample size up to 4 pts
  • Effect reported up to 3 pts
  • Studied in people up to 3 pts
  • Randomised / blinded up to 2 pts
  • Times cited up to 7 pts
  • Citations per year up to 5 pts
  • Impact for its field and year up to 6 pts
  • Cited by studies here up to 6 pts
  • Still being cited up to 4 pts
  • Senior author's track record up to 4 pts
  • Institution's track record up to 3 pts
  • Multi-centre collaboration up to 3 pts
  • Indexed in PubMed up to 2 pts
  • Free to read up to 2 pts

Journals are placed in ordered tiers, never given a numeric impact factor — we could not verify current impact factors from a source we control, and an invented one would be worse than none. Tier 1 is the top-tier general journals (NEJM, The Lancet, JAMA, Nature, Science, Nature Medicine); tier 2 is the leading specialty journals; tier 3 is every other peer-reviewed journal. A separate part scores how much the journal's own papers are cited, which tells the tier-3 journals apart.

Two rules we don't bend. First, we never fill in a missing value: if a record does not state a sample size or a design, that component scores zero, and if we simply have no data for a part, such as a citation count, that part is left out and the study is scored on the parts we could check. The study card says which. Second, anything that is not a peer-reviewed article is capped at 16/100 and carries a warning chip — so a conference abstract or a company press release can never outrank a peer-reviewed paper, no matter how good it looks.

We rank a rigorous null result — a good trial showing that something does not work — above an early positive finding. Someone deciding whether to buy a supplement is served by that, and the rigour is already counted by the design and journal components.

The score is computed from the published data alone and is reproducible: the same file always yields the same numbers.

See the whole rubric drawn out → — four charts covering all 28,180 studies: how the scores are spread and where the cap bites, which of the 20 components the library is strong and weak on, which subjects rest on stronger evidence, and what kinds of study each subject is actually built from.

What this library is — and isn't

This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 28,180 records, built mostly from automated pulls of Europe PMC (61.7% of the library) and OpenAlex (18.1%), plus smaller pulls from PubMed, Crossref and medRxiv. If a study, a drug, or a finding isn't here, that is not evidence it doesn't exist in the literature — it may simply not have been pulled in yet.

1,034 records (3.7% of the library) are not peer-reviewed — 962 of those are preprints posted before any journal review, and the rest are conference abstracts, regulatory notices and reports. Every study card on this page states its status plainly, and the score above is capped for anything that isn't a peer-reviewed article.

See the full, machine-readable breakdown of this library's coverage →

Newest studies, as a dated timeline →    Atom feed