19 documents found, page 1 of 2
The effects of bromazepam over the central and frontal areas during a motor tas...
Fortunato,Suzete; Tanaka,Guaraci Ken; Araújo,Fernanda; Bittencourt,Juliana; Aprigio,Danielle; Gongora,Mariana; Teixeira,SilmarThe present study investigates the influence of bromazepam while executing a motor task. Specifically, we intend to analyze the changes in alpha absolute power under two experimental conditions, bromazepam and placebo. We also included analyses of theta and beta frequencies. We collected electroencephalographic data before, during, and after motor task execution. We used a Two Way ANOVA to investigate the condi...
Alpha power oscillation in the frontal cortex under Bromazepam and Modafinil ef...
Aprigio,Danielle; Adolfo,Washington; Bittencourt,Juliana; Gongora,Mariana; Teixeira,Silmar; Basile,Luis Fernando; Budde,Henning; Cagy,MauricioABSTRACTObjective Our aim was to investigate and compare the neuromodulatory effects of bromazepam (6 mg) and modafinil (200 mg) during a sensorimotor task analyzing the changes produced in the absolute alpha power.Method The sample was composed of 15 healthy individuals exposed to three experimental conditions: placebo, modafinil and bromazepam. EEG data were recorded before, during and after the execution of ...
Proprioceptive deficit in individuals with unilateral tearing of the anterior c...
Cossich,Victor; Mallrich,Frédéric; Titonelli,Victor; Sousa,Eduardo Branco de; Velasques,Bruna; Salles,José InácioObjective:To ascertain whether the proprioceptive deficit in the sense of joint position continues to be present when patients with a limb presenting a deficient anterior cruciate ligament (ACL) are assessed by testing their active reproduction of joint position, in comparison with the contralateral limb.Methods:Twenty patients with unilateral ACL tearing participated in the study. Their active reproduction of ...
Proprioceptive deficit in patients with complete tearing of the anterior crucia...
Godinho,Pedro; Nicoliche,Eduardo; Cossich,Victor; Sousa,Eduardo Branco de; Velasques,Bruna; Salles,José InácioObjective:To investigate the existence of proprioceptive deficits between the injured limb and the uninjured (i.e. contralateral normal) limb, in individuals who suffered complete tearing of the anterior cruciate ligament (ACL), using a strength reproduction test.Methods:Sixteen patients with complete tearing of the ACL participated in the study. A voluntary maximum isometric strength test was performed, with r...
Lower trait frontal theta activity in mindfulness meditators
Tanaka,Guaraci Ken; Peressutti,Caroline; Teixeira,Silmar; Cagy,Mauricio; Piedade,Roberto; Nardi,Antonio Egídio; Ribeiro,Pedro; Velasques,BrunaAcute and long-term effects of mindfulness meditation on theta-band activity are not clear. The aim of this study was to investigate frontal theta differences between long- and short-term mindfulness practitioners before, during, and after mindfulness meditation. Twenty participants were recruited, of which 10 were experienced Buddhist meditators. Despite an acute increase in the theta activity during meditatio...
Sport-related concussions
Ianof,Jéssica Natuline; Freire,Fabio Rios; Calado,Vanessa Tomé Gonçalves; Lacerda,Juliana Rhein; Coelho,Fernanda; Veitzman,Silvia; Schmidt,Magali TainoABSTRACT Traumatic brain injury (TBI) is a major cause of lifelong disability and death worldwide. Sport-related traumatic brain injury is an important public health concern. The purpose of this review was to highlight the importance of sport-related concussions. Concussion refers to a transient alteration in consciousness induced by external biomechanical forces transmitted directly or indirectly to the brain....
Attention impairment in bipolar disorder: a systematic review
Camelo,Evelyn V. M.; Velasques,Bruna; Ribeiro,Pedro; Netto,Tania; Cheniaux,ElieBipolar disorder (BD) has been associated with marked cognitive impairment, including euthymic periods. Attention is among the most compromised functions in BD. Changes related to learning, memory, and visuospatial abilities can be derived from these attention impairments. The objective of this article is to review the scientific literature on the performance of BD patients in attention tests. A systematic revi...
BPSD following traumatic brain injury
Anghinah,Renato; Freire,Fabio Rios; Coelho,Fernanda; Lacerda,Juliana Rhein; Schmidt,Magali Taino; Calado,Vanessa Tomé Gonçalves; Ianof,Jéssica NatulineABSTRACT Annually, 700,000 people are hospitalized with brain injury acquired after traumatic brain injury (TBI) in Brazil. Objective: We aim to review the basic concepts related to TBI, and the most common Behavioral and Psychological Symptoms of Dementia (BPSD) findings in moderate and severe TBI survivors. We also discussed our strategies used to manage such patients in the post-acute period. Methods: Fiftee...
Cognitive mechanisms and motor control during a saccadic eye movement task: evi...
Diniz,Claudia; Velasques,Bruna; Bittencourt,Juliana; Peressutti,Caroline; Machado,Sergio; Teixeira,Silmar; Santos,Joana Luz; Salles,José InácioThe 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 pres...
Alzheimer's disease qEEG: spectral analysis versus coherence. which is the best...
Anghinah,Renato; Kanda,Paulo Afonso Medeiros; Lopes,Helder Frederico; Basile,Luis Fernando Hindi; Machado,Sérgio; Ribeiro,Pedro; Velasques,BrunaThere is evidence in electroencephalography that alpha, theta and delta band oscillations reflect cognitive and memory performances and that quantitative techniques can improve the electroencephalogram (EEG) sensitivity. This paper presents the results of comparative analysis of qEEG variables as reliable markers for Alzheimer's disease (AD). We compared the sensitivity and specificity between spectral analysis...