Analysis of slow- and fast-alpha band asymmetry during performance of a saccadic eye movement task: Dissociation between memory- and attention-driven systems

A. Sanfim, B. Velasques, S. Machado, O. Arias-Carrión, F. Paes, S. Teixeira, J.L. Santos, J. Bittencourt, L.F. Basile, M. Cagy, R. Piedade, A.T. Sack, A.E. Nardi, P. Ribeiro

Research output: Contribution to journalArticleAcademicpeer-review

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. (PsycINFO Database Record (c) 2012 APA, all rights reserved) (journal abstract)
Original languageEnglish
Pages (from-to)62-67
Number of pages6
JournalJournal of the Neurological Sciences
Volume312
Issue number1-2
DOIs
Publication statusPublished - 15 Jan 2012

Keywords

  • Asymmetry
  • Attention
  • BRAIN
  • DORSOLATERAL PREFRONTAL CORTEX
  • DYNAMICS
  • INTEGRATION
  • MODULATIONS
  • Memory
  • OCULAR MOTOR BEHAVIOR
  • SELECTION
  • SKILL
  • Saccadic eye movement
  • Sensorimotor integration
  • Slow- and fast-alpha

Cite this

Sanfim, A., Velasques, B., Machado, S., Arias-Carrión, O., Paes, F., Teixeira, S., Santos, J. L., Bittencourt, J., Basile, L. F., Cagy, M., Piedade, R., Sack, A. T., Nardi, A. E., & Ribeiro, P. (2012). Analysis of slow- and fast-alpha band asymmetry during performance of a saccadic eye movement task: Dissociation between memory- and attention-driven systems. Journal of the Neurological Sciences, 312(1-2), 62-67. https://doi.org/10.1016/j.jns.2011.08.022