Human cortical rhythms during visual delayed choice reaction time tasks: A high-resolution EEG study on normal aging

Claudio Babiloni, Fabio Babiloni, Filippo Carducci, Stefano F. Cappa, Febo Cincotti, Claudio Del Percio, Carlo Miniussi, Davide Vito Moretti, Simone Rossi, Katiuscia Sosta, Paolo Maria Rossini

Research output: Contribution to journalArticle


Neuroimaging cognitive study of aging requires simple tasks ensuring a high rate of correct performances even in stressful neurophysiological settings. Here two simple delayed choice reaction time tasks were used to unveil event-related desynchronization (ERD) of theta (4-6 Hz) and alpha (6-12 Hz) electroencephalographic rhythms across normal aging. In the first condition, a cue stimulus (one bit) was memorized along a brief delay period (3.5-5.5 s). The explicit demand was visuo-spatial, but the retention could be also based on phonological and somatomotor coding. In the second condition, the cue stimulus remained available along the delay period. Correct performances were higher than 95% in both groups and tasks, although they were significantly better in young than elderly subjects (P

Original languageEnglish
Pages (from-to)261-271
Number of pages11
JournalBehavioural Brain Research
Issue number1
Publication statusPublished - Aug 12 2004



  • Aging
  • Alpha rhythm
  • Cerebral cortex
  • Delayed choice reaction time
  • Electroencephalography (EEG)
  • Event-related desynchronization/synchronization (ERD/ERS)
  • Short-term memory
  • Theta rhythm

ASJC Scopus subject areas

  • Behavioral Neuroscience

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