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They were 28 stroke survivors, volunteers, with lesions in the right (\n                    <jats:italic toggle=\"yes\">n<\/jats:italic>\n                    = 14) and left (\n                    <jats:italic toggle=\"yes\">n<\/jats:italic>\n                    = 14) hemispheres, aged between 37 and 75\u00a0years, with time since injury between 0.5 and 16.7\u00a0years, and classified on the MoCA test between 10 and 28. The learning task involved demands of sequential movements and coincident timing performed on a computer. Participants had to click the mouse cursor on two (simple task) or three (complex) targets to that the last click coincided, in a certain location (coincidence zone), with a moving ball. The practice comprised the following sequential phases: stabilization 1 (140 trials), adaptation 1 (10 trials), stabilization 2 (30 trials), and adaptation 2 (10 trials). The dependent variables were the absolute and variable errors, which were analyzed considering the first and last blocks of trials in the stabilization phases and the blocks of the adaptation phases. The results showed that: (i) task complexity affected the adaptive process of motor learning by stroke survivors, regardless of the hemisphere of the lesion, level of cognitive impairment, time since the lesion, and age; (ii) stroke survivors adapted themselves to perturbation in simple and complex tasks by parameterizing and structure reorganizing, respectively; and (iii) stroke survivors were able to explore the micro-redundancy when practicing the simple task.\n                  <\/jats:p>","DOI":"10.1177\/10597123251392123","type":"journal-article","created":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T21:18:48Z","timestamp":1761599928000},"page":"115-125","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["The adaptive process of motor learning by stroke survivors as a function of task complexity"],"prefix":"10.1177","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1188-3887","authenticated-orcid":false,"given":"Gisele Carla dos Santos","family":"Palma","sequence":"first","affiliation":[{"name":"Universidade de S\u00e3o Paulo"}]},{"given":"Fl\u00e1vio Henrique","family":"Bastos","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3751-2857","authenticated-orcid":false,"given":"Giordano M\u00e1rcio Gatinho","family":"Bonuzzi","sequence":"additional","affiliation":[{"name":"Universidade de Bras\u00edlia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3465-0437","authenticated-orcid":false,"given":"Umberto Cesar","family":"Corr\u00eaa","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo"}]}],"member":"179","published-online":{"date-parts":[[2025,10,27]]},"reference":[{"key":"e_1_3_4_2_1","doi-asserted-by":"publisher","DOI":"10.3389\/fnins.2018.01023"},{"key":"e_1_3_4_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.humov.2017.07.011"},{"key":"e_1_3_4_4_1","volume-title":"Depression: Causes and treatment","author":"Beck A. 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