neuropsychological

Fully-automated analysis of voice recordings–from neuropsychological tests–found to help differentiate normal cognition from dementia and mild cognitive impairment

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Cred­it: James Byrne

Voice Record­ings Spot Cog­ni­tive Impair­ment (Med­Page Today):

A machine-learn­ing mod­el iden­ti­fied mild cog­ni­tive impair­ment and demen­tia from dig­i­tal voice record­ings of neu­ropsy­cho­log­i­cal tests, an ear­ly study showed.

Among 1,084 peo­ple in the Fram­ing­ham Heart Study whose tests were record­ed, the aver­age area under the curve (AUC) reached 92.6% for dif­fer­en­ti­at­ing nor­mal cog­ni­tion from demen­tia, 88.0% for dis­cern­ing nor­mal cog­ni­tion or mild cog­ni­tive impair­ment from demen­tia, and 74.4% for dis­tin­guish­ing nor­mal cog­ni­tion from mild cog­ni­tive impair­ment. [Read more…] about Ful­ly-auto­mat­ed analy­sis of voice recordings–from neu­ropsy­cho­log­i­cal tests–found to help dif­fer­en­ti­ate nor­mal cog­ni­tion from demen­tia and mild cog­ni­tive impairment

Six guidelines to navigate the Aduhelm controversy and (hopefully) help patients with Mild Cognitive Impairment and early-stage Alzheimer’s Disease

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The approval of a con­tro­ver­sial new drug for Alzheimer’s dis­ease, Aduhelm, is shin­ing a spot­light on mild cog­ni­tive impair­ment — prob­lems with mem­o­ry, atten­tion, lan­guage or oth­er cog­ni­tive tasks that exceed changes expect­ed with nor­mal aging.

After ini­tial­ly indi­cat­ing that Aduhelm could be pre­scribed to any­one with demen­tia, the Food and Drug Admin­is­tra­tion now spec­i­fies that the pre­scrip­tion drug be giv­en to indi­vid­u­als with mild cog­ni­tive impair­ment or ear­ly-stage Alzheimer’s, the groups in which the med­ica­tion was studied.

Yet this nar­row­er rec­om­men­da­tion rais­es ques­tions. What does a diag­no­sis of mild cog­ni­tive impair­ment mean? Is Aduhelm appro­pri­ate for all peo­ple with mild cog­ni­tive impair­ment, or only some? And who should decide which patients qual­i­fy for treat­ment: demen­tia spe­cial­ists or pri­ma­ry care physi­cians? [Read more…] about Six guide­lines to nav­i­gate the Aduhelm con­tro­ver­sy and (hope­ful­ly) help patients with Mild Cog­ni­tive Impair­ment and ear­ly-stage Alzheimer’s Disease

Study with 330 centenarians finds that cognitive decline is not inevitable

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Hen­drik­je van Andel Schip­per (1890–2005)

Age-Relat­ed Cog­ni­tive Decline May Not Be Inevitable (Web­MD):

It is often assumed that a decrease in mem­o­ry and brain func­tion are inevitable parts of aging, but a new study of cen­te­nar­i­ans sug­gests otherwise.

Inves­ti­ga­tors found that despite the pres­ence of neu­ro­log­i­cal issues gen­er­al­ly asso­ci­at­ed with Alzheimer’s dis­ease (AD), many cen­te­nar­i­ans main­tained high lev­els of cog­ni­tive performance.

(Henne Hol­stege, PhD, assis­tant pro­fes­sor at Ams­ter­dam Uni­ver­si­ty Med­ical Cen­ter) said her inter­est in research­ing aging and cog­ni­tive health was inspired by the “fas­ci­nat­ing” sto­ry of Hen­drik­je van Andel Schip­per, who died at age 115 in 2005 “com­plete­ly cog­ni­tive­ly healthy.” Her moth­er, who died at age 100, was also cog­ni­tive­ly intact at the end of her life. [Read more…] about Study with 330 cen­te­nar­i­ans finds that cog­ni­tive decline is not inevitable

Study: Artificial intelligence program identifies linguistic markers that predict, with 70% accuracy, who gets Alzheimer’s Disease years later

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Fig. 3. Cook­ie-theft pic­ture descrip­tion task (CTT) exam­ples from the Fram­ing­ham Heart Study, includ­ing an unim­paired sam­ple (a), an impaired sam­ple (b), and an even more impaired sam­ple show­ing sig­nif­i­cant mis­spellings and min­i­mal gram­mat­ic com­plex­i­ty ©. Cred­it: Eyigoz et al (2020)

Alzheimer’s Pre­dic­tion May Be Found in Writ­ing Tests (The New York Times):

… the researchers looked at a group of 80 men and women in their 80s — half had Alzheimer’s and the oth­ers did not. But, sev­en and a half years ear­li­er, all had been cog­ni­tive­ly nor­mal. [Read more…] about Study: Arti­fi­cial intel­li­gence pro­gram iden­ti­fies lin­guis­tic mark­ers that pre­dict, with 70% accu­ra­cy, who gets Alzheimer’s Dis­ease years later

Test your cognitive flexibility with this fun brain teaser

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Ready to test your cog­ni­tive flex­i­bil­i­ty and con­cen­tra­tion pow­ers? Try this clas­sic brain teas­er, fun for kids and adults alike.

Quick! Say aloud what col­or you see in every word. Don’t read the word — say the color 🙂

Tougher than expect­ed, right? This brain teas­er is actu­al­ly called the Stroop Test and is often used in neu­ropsy­cho­log­i­cal eval­u­a­tions to mea­sure exec­u­tive func­tions such as cog­ni­tive flex­i­bil­i­ty, inhi­bi­tion and self-reg­u­la­tion capability.

For more brain teasers and also visu­al illusions:

Study: 10-minute cognitive test MoCA helps predict long-term motor, cognitive and mortality outcomes after stroke

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Sim­ple test may help pre­dict long-term out­come after stroke (Sci­ence Daily):

“We found that this test, which takes less than 10 min­utes, can help pre­dict whether peo­ple will have impaired think­ing skills, prob­lems that keep them from per­form­ing dai­ly tasks such as bathing and dress­ing and even whether they will be more like­ly to die,” said study author Mar­tin Dich­gans, MD, of Lud­wig-Max­i­m­il­ians Uni­ver­si­ty [Read more…] about Study: 10-minute cog­ni­tive test MoCA helps pre­dict long-term motor, cog­ni­tive and mor­tal­i­ty out­comes after stroke