All publications of “Maria Ângela Maramaldo Barreiros”

2 results

Interictal abnormal fMRI activation of visual areas during a motor task cued by visual stimuli in migraine

Adriana Bastos Conforto, Khallil Taverna Chaim, Mario Fernando Prieto Peres, André Leite Gonçalves, Inara Laurindo Siqueira, Maria Angela Maramaldo Barreiros, [...]

DOI: 10.1590/S1679-45082017AO3719

ABSTRACT Objective To assess changes in blood-oxygen-level-dependent activity after light deprivation compared to regular light exposure in subjects with migraine in the interictal state and in controls. Methods Ten subjects with migraine and ten controls participated in two sessions of functional magnetic resonance imaging. In each session, they performed a finger-tapping task with the right hand, cued by visual stimuli. They were scanned before and after 30 minutes of light deprivation or light exposure. In subjects with migraine, functional magnetic […]

Levodopa versus non-levodopa brain language fMRI in Parkinson’s disease

Paula Ricci Arantes, Heloise Helena Gobato, Bárbara Bordegatto Davoglio, Maria Ângela Maramaldo Barreiros, André Carvalho Felício, Orlando Graziani Povoas Barsottini, [...]

DOI: 10.1590/S1679-45082012000200010

Objective:To identify the effect of levodopa in language areas in Parkinson’s disease patients.METHODS:We evaluated 50 patients with mild to moderate Parkinson’s disease, age and gender paired to 47 healthy volunteers. We selected two homogeneous groups of 18 patients taking levodopa and 7 no levodopa patients. The functional magnetic resonance imaging verbal fluency task, with low and high cognitive demands, was performed at a 3T magnetic resonance imaging equipment. Data was analyzed with XBAM software for group maps and ANOVA comparison.RESULTS:Patients […]