alzhub.org
Get help now — free helplines

You can call any of these for free. You do not need a diagnosis, an appointment, or a crisis to call — questions and plain exhaustion are reasons enough.

  • Alzheimer's Association 24/7 Helpline 800-272-3900 24 hours a day, 365 days a year Free, confidential support and information for people with dementia, caregivers, families and the public. Master's-level clinicians. Also Spanish.
  • 988 Suicide & Crisis Lifeline 988 24/7 Call or text 988, or chat at 988lifeline.org. For anyone in emotional distress or a mental-health crisis, including caregivers.
  • Alzheimer's Foundation of America (AFA) Helpline 866-232-8484 9:00 am - 9:00 pm ET, seven days a week Licensed social workers providing support, info and referrals. Also text message and web chat. Text: 646-586-5283

In a medical emergency, call 911. More numbers, and what each line does, on the help page.

Research

27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.

Find studies

Showing 551–575 of 881 studies in Cognitive tests and assessment (page 23 of 36) · 27,380 in the whole library · How the 0–100 score works

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; 12,859 studies have no institution on record and are not counted here.

What “Cognitive tests and assessment” covers

Cognitive tests and assessment — Memory and thinking tests, screening tools and rating scales: how well they measure what they claim to.

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.

Evaluating cognitive impairment among a geriatric population in India using the Indian Council of Medical Research (ICMR)–multilingual dementia research and assessment (MUDRA) toolbox

✓ Peer-reviewed alzhub usefulness score 46 out of 100. Indian Journal of Psychiatry 2025-10-01

Among 1013 participants, 847 screened positive on MoCA (70.4% mild, 13.2% moderate) for cognitive impairment and were assessed further for other domains of ICMR-MUDRA toolbox. 5 key findings →

Design: cross-sectional Participants: 1,013 Evidence: low

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

Volumes of hippocampus, amygdala and frontal lobes in the MRI-based diagnosis of early Alzheimer's disease: correlation with memory functions

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Journal of neural transmission. Parkinson's disease and dementia section 1995-01-01

We studied the usefulness of measuring volumes of the hippocampus, amygdala and frontal lobes with coronal magnetic resonance imaging (MRI) scans in the diagnosis of early Alzheimer's disease (AD). 4 key findings →

Participants: 32 Evidence: low

Full summary, score breakdown and related studies → Original source Full text may need a subscription

EEG beta band activity is related to attention and attentional deficits in the visual performance of elderly subjects

✓ Peer-reviewed alzhub usefulness score 45 out of 100. International journal of psychophysiology : official journal of the International Organization of Psychophysiology 2013-05-18

We have previously shown that beta-band EEG activity is related to attentional modulation in the visual system of cats and humans. 4 key findings →

Evidence: low

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

Effect of education on the mini-mental state examination as a screening test for dementia

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Journal of the American Geriatrics Society 1991-09-01

We studied whether Mini-Mental State Examination (MMSE) norms for detecting dementia in elderly outpatients vary according to educational attainment. 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Full text may need a subscription

Cerebrospinal fluid S100B is elevated in the earlier stages of Alzheimer's disease

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Neurochemistry international 2001-11-01

Postmortem demonstration of increased expression of biologically active S100B in Alzheimer's disease (AD) and its relation to progression of neuropathological changes across the cortical regions suggests involvement of this astrocytic cytokine in the pathophysiology of AD. 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Full text may need a subscription

Screening utility of the Montreal Cognitive Assessment (MoCA): in place of--or as well as--the MMSE?

✓ Peer-reviewed alzhub usefulness score 45 out of 100. International psychogeriatrics 2011-10-03

This aim of this study was to assess the clinical utility of the Montreal Cognitive Assessment (MoCA) as a screening instrument for cognitive impairment in patients referred to a memory clinic, alone and in combination with the Mini-Mental State Examination (MMSE). 4 key findings →

Participants: 150 Evidence: low

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

Atrophy of the cholinergic basal forebrain in dementia with Lewy bodies and Alzheimer's disease dementia

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Journal of neurology 2014-07-25

Similar to Alzheimer's disease (AD), dementia with Lewy bodies (DLB) is characterized by a profound degeneration of cortically-projecting cholinergic neurons of the basal forebrain (BF) and associated depletion of cortical cholinergic activity. 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Full text may need a subscription

Screening for cognitive impairment in multiple sclerosis. An evaluation of the Mini-Mental State Examination

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Archives of neurology 1990-03-01

The usefulness of the Mini-Mental State Examination (MMSE) as a screening test for identifying cognitive impairment in patients with multiple sclerosis (MS) has been questioned because many patients who score above the suggested cutoff score of 24 exhibit severe focal or global cognitive deficits. 4 key findings →

Participants: 85 Evidence: low

Full summary, score breakdown and related studies → Original source Full text may need a subscription

Cognitive, psychiatric and motor response to galantamine in Parkinson's disease with dementia

✓ Peer-reviewed alzhub usefulness score 45 out of 100. International journal of geriatric psychiatry 2003-10-01

Cholinesterase inhibitors with additional nicotinic activity, such as galantamine, may be useful in PD patients with dementia (PDD) since stimulation of nicotinic receptors may prevent the down-regulation that is likely to accompany cholinesterase inhibition and facilitate dopamine release in the striatum. 4 key findings →

Design: open-label trial Evidence: low

Full summary, score breakdown and related studies → Original source Full text may need a subscription

Alpha-lipoic acid as a new treatment option for Alzheimer [corrected] type dementia

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Archives of gerontology and geriatrics 2001-06-01

Oxidative stress and energy depletion are characteristic biochemical hallmarks of Alzheimer's disease (AD), thus antioxidants with positive effects on glucose metabolism such as thioctic (alpha-lipoic) acid should exert positive effects in these patients. 3 key findings →

Evidence: high

Full summary, score breakdown and related studies → Original source Full text may need a subscription

Treatment of cognitive impairment after poststroke depression : a double-blind treatment trial

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Stroke 2000-07-01

Patients with poststroke major depression have a greater severity of cognitive impairment than nondepressed patients even when matched for size and location of stroke lesion. 4 key findings →

Participants: 33 Evidence: low

Full summary, score breakdown and related studies → Original source Full text may need a subscription

Prevalence and correlates of the head turning sign in mild cognitive impairment and dementia due to neurodegenerative, chronic cerebrovascular, and mixed etiologies

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Journal of Alzheimer s Disease 2025-02-16

In patients with cognitive impairment due to diverse causes, the HTS might occur regardless of MCI versus dementia status and across different etiologies. 4 key findings →

Participants: 121 Evidence: moderate

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

↑ Change the filters

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 27,380 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 27,380 records, built mostly from automated pulls of Europe PMC (60.6% of the library) and OpenAlex (18.6%), 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.

1,032 records (3.8% 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