Brain sources’ activity in resting state before a visuo-motor task
- 18 February 2021
- journal article
- research article
- Published by IOP Publishing in Journal of Neural Engineering
- Vol. 18 (3), 034002
- https://doi.org/10.1088/1741-2552/abe7ba
Abstract
Objective In modern neuroscience, the underlying mechanisms of the elaboration and reaction to different kinds of stimuli of the brain hemispheres remain still very challenging to understand, together with the possibility to anticipate certain behaviors to improve the performance. Approach The purpose of the present study was to investigate the brain rhythms characteristics of EEG recordings and in particular, their interhemispheric differences in resting state condition before a visuo-motor task in a population of healthy adults. During the task, subjects were asked to react to a sequence of visual cues as quick as possible. The reaction times (RTs) to the task were measured, collected and correlated with the EEG signals recorded in a resting state condition immediately preceding the task. The EEG data were analyzed in the space of cortical sources of EEG rhythms by the computation of the Global Spectra Power Density (GSPD) in the left and in the right hemisphere, and of an index of brain Laterality L. Main results The results showed a negative correlation between the RTs and the GSPD in the central areas in the left and in the right hemisphere in both eyes open and eyes closed conditions. A close to significant and negative correlation was found in the parietal areas. Furthermore, RTs negatively correlated with L in the central areas in eyes closed condition. The results showed a negative correlation between the RTs and the GSPD in the central areas in the left and in the right hemisphere in both eyes open and eyes closed conditions. Significance The correlations between the brain activity before a task and the RTs to the task can represent an interesting tool for exploring the brain state characterization for the upcoming tasks performance.This publication has 72 references indexed in Scilit:
- Postural sway and Rhythmic Electroencephalography analysis of cortical activation during eight balance training tasksMedical Science Monitor, 2013
- Frequency-dependent functional connectivity within resting-state networks: An atlas-based MEG beamformer solutionNeuroImage, 2012
- The focus of attention as observed in visual working memory tasks: Making sense of competing claimsNeuropsychologia, 2011
- Left Parietal Regions Are Critical for Adaptive Visuomotor ControlJournal of Neuroscience, 2011
- State-Dependent Visual ProcessingFrontiers in Psychology, 2011
- Behavioral evidence for left-hemisphere specialization of motor planningExperimental Brain Research, 2010
- Changes in the activity of the cerebral cortex relate to postural response modification when warned of a perturbationClinical Neurophysiology, 2008
- High-frequency oscillations in distributed neural networks reveal the dynamics of human decision makingFrontiers in Human Neuroscience, 2008
- Intrinsic Fluctuations within Cortical Systems Account for Intertrial Variability in Human BehaviorNeuron, 2007
- The Attentional Role of the Left Parietal Cortex: The Distinct Lateralization and Localization of Motor Attention in the Human BrainJournal of Cognitive Neuroscience, 2001