{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T17:46:06Z","timestamp":1782927966458,"version":"3.54.5"},"reference-count":47,"publisher":"Oxford University Press (OUP)","issue":"7","license":[{"start":{"date-parts":[[2026,5,18]],"date-time":"2026-05-18T00:00:00Z","timestamp":1779062400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"name":"Neuroelectrics Corp., the National Institute on Aging","award":["T32AG023480"],"award-info":[{"award-number":["T32AG023480"]}]},{"name":"Neuroelectrics Corp., the National Institute on Aging","award":["R21AG064575"],"award-info":[{"award-number":["R21AG064575"]}]},{"name":"Neuroelectrics Corp., the National Institute on Aging","award":["R01AG059089-01"],"award-info":[{"award-number":["R01AG059089-01"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,6,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Standing is a complex task often performed concurrently with a cognitive task. This type of \u201cdual-tasking\u201d requires attentional processing and related patterns of brain activation, particularly in the gamma frequency band of electrographic electroencephalography (EEG) signals (30-50\u2009Hz). In older adults, transcranial direct current stimulation (tDCS) designed to facilitate the excitability of the left dorsolateral prefrontal cortex (L-DLPFC) improves attentional control and dual-task standing performance when tested just after stimulation. However, the effects of tDCS on underlying brain activity during single- and dual-task standing are unknown.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Thirty older adults completed three visits during which they received 20\u2009min of tDCS targeting the L-DLPFC, the primary sensorimotor cortex (SM1, active control), or sham (inactive control) in randomized order. Before and immediately after each stimulation session, 32-channel EEG and body-worn motion sensors were used as participants completed trials of standing with and without verbalized serial subtractions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>tDCS targeting L-DLPFC, as compared to SM1 and sham stimulation, increased gamma power during single-task standing in the anterior left (p\u2009=\u2009.02) and anterior right regions (p\u2009=\u2009.03). A similar trend (p\u2009=\u2009.08) towards increased gamma power in these regions following tDCS targeting the L-DLPFC was also observed during dual-task standing. Participants who demonstrated a greater increase in gamma power after tDCS targeting L-DLPFC exhibited greater reduction (improvement) in postural sway during single-task standing (r\u2009=\u2009\u22120.53, p\u2009=\u2009.007) and dual-task standing (r\u2009=\u2009\u22120.51, p\u2009=\u2009.003).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>These results suggest that tDCS designed to facilitate L-DLPFC excitability modulates gamma power during single-task standing, which was in turn correlated with improved postural control, in older adults.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/gerona\/glag127","type":"journal-article","created":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T12:28:25Z","timestamp":1778675305000},"source":"Crossref","is-referenced-by-count":0,"title":["Transcranial direct current stimulation targeting the left dorsolateral 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