title: Analysis of slow- and fast-α band asymmetry during performance of a saccadic eye movement task: dissociation between memory- and attention-driven systems.
abstract: This study aimed at analyzing the relationship between slow- and fast-alpha asymmetry within frontal cortex and the planning, execution and voluntary control of saccadic eye movements (SEM), and quantitative electroencephalography (qEEG) was recorded using a 20-channel EEG system in 12 healthy participants performing a fixed (i.e., memory-driven) and a random SEM (i.e., stimulus-driven) condition. We find main effects for SEM condition in slow- and fast-alpha asymmetry at electrodes F3-F4, which are located over premotor cortex, specifically a negative asymmetry between conditions. When analyzing electrodes F7-F8, which are located over prefrontal cortex, we found a main effect for condition in slow-alpha asymmetry, particularly a positive asymmetry between conditions. In conclusion, the present approach supports the association of slow- and fast-alpha bands with the planning and preparation of SEM, and the specific role of these sub-bands for both, the attention network and the coordination and integration of sensory information with a (oculo)-motor response.
authors: Brain Mapping and Sensory Motor Integration, Institute of Psychiatry of Federal University of Rio de Janeiro (IPUB/UFRJ), Rio de Janeiro, Brazil.
authors: Antonio
authors: A
authors: Sanfim
authors: Bruna
authors: B
authors: Velasques
authors: Sergio
authors: S
authors: Machado
authors: Oscar
authors: O
authors: Arias-Carrión
authors: Flávia
authors: F
authors: Paes
authors: Silmar
authors: S
authors: Teixeira
authors: Joana Luz
authors: JL
authors: Santos
authors: Juliana
authors: J
authors: Bittencourt
authors: Luis F
authors: LF
authors: Basile
authors: Mauricio
authors: M
authors: Cagy
authors: Roberto
authors: R
authors: Piedade
authors: Alexander T
authors: AT
authors: Sack
authors: Antonio Egídio
authors: AE
authors: Nardi
authors: Pedro
authors: P
authors: Ribeiro
mesh_terms: D000328:Adult; D000513:Alpha Rhythm / Q000502:physiology*; D001288:Attention / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008568:Memory / Q000502:physiology*; D009044:Motor Cortex / Q000502:physiology*; D017397:Prefrontal Cortex / Q000502:physiology*; D012438:Saccades / Q000502:physiology*; D055815:Young Adult