{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,19]],"date-time":"2026-01-19T03:22:31Z","timestamp":1768792951198,"version":"3.49.0"},"reference-count":26,"publisher":"FapUNIFESP (SciELO)","issue":"7","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arq. Neuro-Psiquiatr."],"published-print":{"date-parts":[[2012,7]]},"abstract":"<jats:p>The saccadic movement is an important behavioral measure used to investigate several cognitive processes, including attention and sensorimotor integration. The present study aimed at investigating changes in beta coherence over frontal, motor, occipital, and parietal cortices during the performance of two different conditions of a prosacadic paradigm. The conditions involved a different pattern of stimulus presentation: a fixed and random stimulus presentation. Twelve healthy volunteers (three male, mean age of 26.25 (SD=4.13) performed the task, while their brain activity pattern was recorded using quantitative electroencephalography. The results showed an interaction between factors condition and moment for the pair of electrode C3\/C4. We observed a main effect for moment to CZ\/C4, FZ\/F3, and P3\/PZ. We also found a main effect for condition to FZ\/F4, P3\/P4, and O1\/O2. Our results demonstrated an important role of the inter-connection of the two hemispheres in visual search and movement preparation. The study demonstrates an automation of action and reduction of the focus of attention during the task. We also found that the inter-hemispheric beta coherence plays an important role in the differentiation of the two conditions, and that beta in the right frontal cortex is able to differentiate the conditions, demonstrating a greater involvement of procedural memory in fixed condition. Our results suggest a neuronal specialization in the execution of prosacadic paradigm involving motor task sequence.<\/jats:p>","DOI":"10.1590\/s0004-282x2012000700007","type":"journal-article","created":{"date-parts":[[2012,7,25]],"date-time":"2012-07-25T10:35:28Z","timestamp":1343212528000},"page":"506-513","source":"Crossref","is-referenced-by-count":6,"title":["Cognitive mechanisms and motor control during a saccadic eye movement task: evidence from quantitative electroencephalography"],"prefix":"10.1590","volume":"70","author":[{"given":"Claudia","family":"Diniz","sequence":"first","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil; Institute of Applied Neuroscience,  Brazil; Federal University of Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bruna","family":"Velasques","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil; Institute of Applied Neuroscience,  Brazil; National Institute of Traumatology and Orthopaedics,  Brazil; Federal University of Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juliana","family":"Bittencourt","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil; Institute of Applied Neuroscience,  Brazil; Federal University of Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Caroline","family":"Peressutti","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sergio","family":"Machado","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil; National Institute of Translational Medicine,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Silmar","family":"Teixeira","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joana Luz","family":"Santos","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil; Federal University of Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9 In\u00e1cio","family":"Salles","sequence":"additional","affiliation":[{"name":"National Institute of Traumatology and Orthopaedics,  Brazil; Brazilian Volleyball Confederation"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luis F.","family":"Basile","sequence":"additional","affiliation":[{"name":"University of S\u00e3o Paulo,  Brazil; Universidade Metodista de S\u00e3o Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Renato","family":"Anghinah","sequence":"additional","affiliation":[{"name":"University of S\u00e3o Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elie","family":"Cheniaux","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil; State University of Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonio Egidio","family":"Nardi","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil; National Institute of Translational Medicine,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mauricio","family":"Cagy","sequence":"additional","affiliation":[{"name":"Federal Fluminense University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roberto","family":"Piedade","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Oscar","family":"Arias-Carri\u00f3n","sequence":"additional","affiliation":[{"name":"Phillips University Marburg,  Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pedro","family":"Ribeiro","sequence":"additional","affiliation":[{"name":"Federal University of Rio de Janeiro,  Brazil; Institute of Applied Neuroscience,  Brazil; Rio de Janeiro Federal University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","reference":[{"key":"ref1","first-page":"150","article-title":"Response suppression deficits in treatment-na\u00efve first-episode patients with schizophrenia, psychotic bipolar disorder and psychotic major depression Psychiatry","volume":"170","author":"Harris MSH","year":"2009","journal-title":"Res"},{"key":"ref2","series-title":"Fundamental neuroscience (third edition)","author":"Squire 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