Summary
Cerebral potentials prior to speaking were recorded in 36 healthy righthanded subjects. Subjects began holding breath at irregular intervals prior to the voluntary onset of speech. This was done in order to avoid respiration-related potential shifts. The Bereitschaftspotential (BP) or readiness potential started already 2 s prior to the onset of speaking and was present over either hemisphere. During the last 100 to 200 ms of preparation period, the BP became significantly lateralized towards the left hemisphere. The close temporal relation to speech onset characterized this hemispheric lateralization to be an indicator of the final motor mechanisms for speech. Still, the BP was a bilateral phenomenon, i.e. it was also present over the right hemisphere, indicating involvement of the non-dominant hemisphere as well. The data are compatible with the view of an early bihemispheric motor preparation for speech followed by a late left hemisphere preponderance as the final common pathway.
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Becker W, Hoehne O, Iwase K, Kornhuber HH (1972) Bereitschaftspotential, prämotorische Positivierung und andere Hirnpotentiale bei sakkadischen Augenbewegungen. Vision Res 12: 421–436
Boschert J, Hink RF, Deecke L (1983) Finger movement versus toe movement-related potentials: further evidence for supplementary motor area (SMA) participation prior to voluntary action. Exp Brain Res 55: 73–80
Brooker BH, Donald MW (1980a) Contribution of speech musculature to apparent human EEG asymmetries prior to vocalization. Brain Lang 9: 226–245
Brooker BH, Donald MW (1980b) The search for scalp-recordable speech potentials. In: Kornhuber HH, Deecke L (eds) Motivation, motor and sensory processes of the brain. Electrical potentials, behaviour and clinical use. Prog Brain Res 54: 782–789
Crovitz HF, Zener K (1962) A group-test for assessing hand-eye-dominance. Am J Psychol 75: 271–276
Deecke L, Scheid P, Kornhuber HH (1969) Distribution of readiness potential, pre-motion positivity and motor potential of the human cerebral cortex preceding voluntary finger movements. Exp Brain Res 7: 158–168
Deecke L, Grözinger B, Kornhuber HH (1976) Voluntary finger movement in man: cerebral potentials and theory. Biol Cybern 23: 99–119
Deecke L, Engel M, Lang W, Heise B, Kornhuber HH (1985a) Hirnpotentiale vor dem Sprechen beim Atemanhalten. Z EEG-EMG 16: 36
Deecke L, Kornhuber HH, Lang W, Lang M, Schreiber H (1985b) Timing function of the frontal cortex in sequential motor and learning tasks. Human Neurobiol 4: 143–154
Evarts EV (1981) Role of motor cortex in voluntary movements in primates. In: Brookhart JM, Mountcastle VB (eds) Handbook of physiology, Sect I. The nervous system, Vol. II. Motor control. Americ Physiol Society, Bethesda MA, pp 1083–1120
Fox PT, Fox JM, Raichle ME, Burde RM (1985) The role of the cerebral cortex in the generation of voluntary saccades: a positron emission tomographic study. J Neurophysiol 54: 348–369
Grözinger B, Kornhuber HH, Kriebel J (1974) Respiration correlated brain potentials. J Interdiscipl Cycle Res 5: 287–294
Grözinger B, Kornhuber HH, Kriebel J (1979) Participation of mesial cortex in speech: evidence from cerebral potentials preceding speech production in man. In: Creutzfeldt O, Scheich H, Schreiner C (eds) Hearing mechanisms and speech. Exp Brain Res Suppl II: 189–192
Grözinger B, Kornhuber HH, Kriebel J, Szirtes J, Westphal KP (1980) The Bereitschaftspotential preceding the act of speaking. Also an analysis of artifacts. In: Kornhuber HH, Deecke L (eds) Motivation, motor and sensory processes of the brain. Electrical potentials, behaviour and clinical use. Prog Brain Res 54: 798–804
Ingvar DH (1983) Serial aspects of language and speech related to prefrontal cortical activity. A selective review. Hum Neurobiol 2: 177–189
Jung R, Altenmüller E, Natsch B (1984) Zur Hemisphärendominanz für Sprache und Rechnen: elektrophysiologische Korrelate einer Linksdominanz bei Linkshändern. Neuropsychologia 22: 755–775
Kornhuber HH (1984) Attention, readiness for action and the stages of voluntary decision — some electrophysiological correlates in man. In: Creutzfeldt O, Schmidt RF, Willis WD (eds) Sensory-motor integration in the nervous system. Exp Brain Res Suppl 9: 420–429
Lang W, Lang M, Goldenberg G, Podreka I, Deecke L (1986) EEG and rCBF evidence for left frontocortical activation when memorizing verbal material. Proceedings of the Eighth International Conference on Event-Related Potentials of the Brain (EPIC VIII), Stanford, June, 22–28
McAdam D, Whitaker HA (1971) Language production: electroencephalographic localization in the normal human brain. Science 172: 499–502
Neville JH, Kutas M, Schmidt A (1982) Event-related potential studies of cerebral specialization during reading. Brain Lang 16: 300–315
Oldfield RC (1971) The assessment and analysis of handedness: the edinburgh inventory. Neuropsychologia 9: 97–113
Ojemann GA (1983) The intrahemispheric organization of human language, derived with electrical stimulation techniques. TINS 6: 184–189
Penfield W, Rasmussen T (1950) The cerebral cortex of man. Macmillan, New York
Roland PE, Larsen B, Lassen NA, Skinhoj E (1980) Supplementary motor area and other cortical areas in the organization of voluntary movements in man. J Neurophysiol 43: 118–136
Szirtes J, Vaughan H (1977) Characteristics of cranial and facial potentials associated with speech production. In: Desmedt JE (ed) Language and hemispheric specialization in man: cerebral event-related potentials. Prog Clin Neurophysiol, Vol 3. Karger, Basel, pp 112–126
Weinberg H, Brickett P, Deecke L, Boschert J (1983) Slow magnetic fields of the brain preceding movements and speech. Nuovo Cimento 2: 495–504
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Supported by the Deutsche Forschungsgemeinschaft (De 302/3-1)
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Deecke, L., Engel, M., Lang, W. et al. Bereitschaftspotential preceding speech after holding breath. Exp Brain Res 65, 219–223 (1986). https://doi.org/10.1007/BF00243845
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DOI: https://doi.org/10.1007/BF00243845