My Voice or Yours? An Electrophysiological Study
- 397 Downloads
This study examined the neural processes underlying own voice discrimination using electrophysiological methods. Event-related potentials were recorded while healthy subjects (n = 17) heard passively three oddball sequences composed of recordings of the French vowel/a/pronounced either by the participant her/himself or by two unknown persons. The results indicated that, although the mismatch negativity (MMN) displayed similar peak latency and amplitude in both conditions, the subsequent P3a clearly distinguished the two conditions since its amplitude was significantly smaller for own voice discrimination than for that of unknown voices. Moreover, the own voice discriminative response was associated with an early pre-MMN response. This early response involved a left inferior frontal component, the activity of which lasted throughout the time course of the discriminative response, which included both MMN and P3a.
KeywordsEvent-related potentials Mismatch negativity P3a Self-voice Voice discrimination
This study received financial support from the Fondation Thérèse et René Planiol and the Association des amis de Pierre Deniker. The authors thank Marie-Hélène Giard for comments on the manuscript and Doreen Raine for her help with the English text.
- Brothers L (1990) The social brain: A project for integrating primate behavior and neurophysiology in a new domain. Concepts Neurosc 1:27–51Google Scholar
- Holeckova I, Fischer C, Giard MH et al (2006) Brain responses to a subject’s own name uttered by a familiar voice. Brain research 1082:142–152.Google Scholar
- Ionta S, Gassert R, Blanke O (2011) Multi-sensory and sensorimotor foundation of bodily self-consciousness: an interdisciplinary approach. Front Psychol 2:383. doi: 10.3389/fpsyg.2011.00383
- Keenan J, Gallup GG (2003) The face in the mirror: the search for the origins of consciousness, 1st edn. Ecco, New YorkGoogle Scholar
- Näätänen R (1992) Attention and brain function. Erlbaum New YorkGoogle Scholar
- Suarez SD, Gallup GG, others (1981) Self-recognition in chimpanzees and orangutans, but not gorillas. Journal of Human Evolution 10:175–188Google Scholar
- Tonndorf J (1972) Foundations of Modern Auditory Theory, volume II, chapter Bone Conduction. Academic Press, New YorkGoogle Scholar
- Uddin LQ (2011) The self in autism: an emerging view from neuroimaging. Neurocase 1–8. doi: 10.1080/13554794.2010.509320