{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T06:02:06Z","timestamp":1790402526585,"version":"4.1.0"},"reference-count":25,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T00:00:00Z","timestamp":1783468800000},"content-version":"vor","delay-in-days":7,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100000049","name":"National Institute on Aging","doi-asserted-by":"publisher","award":["R01AG076756"],"award-info":[{"award-number":["R01AG076756"]}],"id":[{"id":"10.13039\/100000049","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["alz-journals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["A&amp;D Transl Res &amp; Clin Interv"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>INTRODUCTION<\/jats:title>\n                    <jats:p>Sleep disturbance is common in persons living with dementia (PLWD) and may contribute to day\u2010to\u2010day variability in cognitive functioning, with implications for daily activities and caregiving. However, traditional cognitive assessments may not capture these short\u2010term fluctuations. Ecological momentary cognitive testing (EMCT) enables repeated, real\u2010world assessment of cognitive performance. This study examined day\u2010to\u2010day associations between sleep and cognitive performance in PLWD\u2013caregiver dyads.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>Baseline data from PLWD\u2013caregiver dyads enrolled in a behavioral sleep trial were analyzed. PLWD completed smartphone\u2010based EMCT tasks assessing processing speed and response inhibition three times daily for 7 days, along with the Mini\u2010Mental State Examination (MMSE). Caregivers reported daily sleep outcomes for themselves and PLWD. Pearson correlations and mixed\u2010effects models adjusted for PLWD age, gender, education, and phone type.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>\n                      EMCT performance correlated significantly with MMSE scores (\n                      <jats:italic>r =<\/jats:italic>\n                      0.51\u20130.58, all\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.01). Higher EMCT scores were associated with shorter time in bed and greater percentage of good sleep in both PLWD and caregivers. Mixed\u2010effects models revealed significant sleep\u2010by\u2010session interactions: the association between PLWD sleep and processing speed was stronger in the evening than the morning, while longer caregiver time in bed was more strongly associated with PLWD cognitive performance in the morning.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>DISCUSSION<\/jats:title>\n                    <jats:p>EMCT captured within\u2010person, time\u2010varying associations between dyad sleep and cognitive performance in PLWD, highlighting its utility for identifying daily fluctuations relevant to functioning and caregiving. These findings support digital, dyadic approaches to monitoring sleep and cognitive function in dementia care.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/trc2.70279","type":"journal-article","created":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T17:34:09Z","timestamp":1783532049000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Real\u2010time digital assessment of sleep\u2013cognition dynamics in dementia care dyads"],"prefix":"10.1002","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2244-2323","authenticated-orcid":false,"given":"Yeonsu","family":"Song","sequence":"first","affiliation":[{"name":"Joe C. Wen School of Nursing University of California, Los Angeles  Los Angeles California USA"},{"name":"David Geffen School of Medicine University of California, Los Angeles  Los Angeles California USA"},{"name":"Geriatric Research, Education and Clinical Center Veterans Affairs Greater Los Angeles Healthcare System North Hills California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carter","family":"Peterson\u2010Meyer","sequence":"additional","affiliation":[{"name":"Department of Psychology University of California, Los Angeles  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura M.","family":"Campbell","sequence":"additional","affiliation":[{"name":"Department of Psychiatry University of California, San Diego  San Diego California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mary\u2010Lynn","family":"Brecht","sequence":"additional","affiliation":[{"name":"Joe C. Wen School of Nursing University of California, Los Angeles  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brent T.","family":"Mausbach","sequence":"additional","affiliation":[{"name":"Department of Psychiatry University of California, San Diego  San Diego California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jennifer L.","family":"Martin","sequence":"additional","affiliation":[{"name":"Herbert Wertheim College of Medicine Florida International University  Miami Florida USA"},{"name":"Geriatric Research, Education and Clinical Center Miami Veterans Affairs Healthcare System Miami Florida USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raeanne C.","family":"Moore","sequence":"additional","affiliation":[{"name":"Department of Psychiatry University of California, San Diego  San Diego California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,7,8]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arr.2022.101782"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arr.2005.07.001"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neurobiolaging.2015.10.020"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1523\/jneurosci.3956\u201014.2015"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1177\/1533317514524814"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.2217\/nmt\u20102016\u20100060"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1590\/1980\u20105764\u2010dn\u20102023\u20100030"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.3389\/fnagi.2021.734382"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/jgs.18720"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1097\/wad.0000000000000037"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/jgs.18042"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1038\/nrneurol.2013.269"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.2217\/nmt.14.33"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.3389\/fdgth.2022.946685"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.44.12.2308"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1093\/geront\/10.1_Part_1.20"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1093\/geront\/9.3_Part_1.179"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/0165\u20101781(89)90047\u20104"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1532\u20105415.2005.53221.x"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-3956(75)90026-6"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.2196\/51978"},{"key":"e_1_2_9_23_1","doi-asserted-by":"publisher","DOI":"10.1177\/20552076241310474"},{"key":"e_1_2_9_24_1","doi-asserted-by":"publisher","DOI":"10.1037\/neu0001048"},{"key":"e_1_2_9_25_1","doi-asserted-by":"publisher","DOI":"10.1080\/09638288.2019.1680748"},{"key":"e_1_2_9_26_1","doi-asserted-by":"publisher","DOI":"10.1017\/s135561772200042x"}],"container-title":["Alzheimer's &amp; 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