Pre-motion positivity during self-paced movements of finger and mouth

Marta Bortoletto, Michela Sarlo, Silvia Poli, Luciano Stegagno

Research output: Contribution to journalArticlepeer-review


The present study investigated the role of pre-motion positivity in movement initiation and the reason why it is not reliably detectable in every study participant. Nineteen right-handed participants performed self-initiated simple movements of the right index finger and mouth while electroencephalography activity was recorded. Most of the participants showed a clear-cut pre-motion positivity with its characteristics varying as a function of the effector involved in the movement. The pre-motion positivity distribution was ipsilateral for finger movements and symmetrical for mouth movements. The results suggest that pre-motion positivity might represent a go-signal to initiate the movement and its occurrence might depend on movement initiation strategies.

Original languageEnglish
Pages (from-to)883-886
Number of pages4
Issue number9
Publication statusPublished - Jun 2006


  • Movement-related potentials
  • Pre-motion positivity
  • Voluntary movement

ASJC Scopus subject areas

  • Neuroscience(all)

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