Abstract.
How does the brain distinguish actions that we perform from movements imposed on us? To study links between the representations of actions and their somatosensory consequences, we compared the perceived times of voluntary actions or involuntary movements and of a subsequent somatic effect (a TMS-induced twitch of the right index finger). Participants perceived voluntary actions as occurring later and their bodily effects as occurring earlier in the agency context, compared to single-event baseline conditions. When the voluntary action was replaced by a passive, involuntary movement this attraction effect reversed. In a second experiment, subjects rated the intensity of the same TMS-induced somatic effect, again following a voluntary action or a passive movement. When the somatic effect was caused by a voluntary action, it was perceived as significantly less intense than when it followed a passive movement. Our results suggest a binding mechanism integrating awareness of somatic consequences occurring in voluntary action. This 'intentional binding' mechanism might underlie the way in which the mind constructs a strong association between intentions, actions and consequences so as to generate the unique and private phenomenological experience of self-agency.
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References
Blakemore S-J, Wolpert DM, Frith CD (1998) Central cancellation of self-produced tickle sensation. Nat Neurosci 1:635–640
Blakemore S-J, Frith CD, Wolpert D (1999) Spatio-temporal prediction modulates the perception of self-produced stimuli. J Cogn Neurosci 11:551–559
Blakemore S-J, Wolpert D, Frith CD (2000) Why can't you tickle yourself? Neuroreport 11:R11–R16
Blakemore S-J, Frith CD, Wolpert DM (2001) The cerebellum is involved in predicting the sensory consequences of action. Neuroreport 12:1879–1884
Bottini G, Bisiach E, Sterzi R, Vallar G (2002) Feeling touches in someone else's hand. Neuroreport 13:249–252
Breitmeyer B (1985) Problems with the psychophysics of intention. Behav Brain Sci 8:539
Claxton G (1975) Why can't we tickle ourselves? Percept Mot Skills 41:335–338
Collins DF, Cameron T, Gillard DM, Prochazka A (1998) Muscular sense is attenuated when humans move. J Physiol 508:635–643
Daprati E, Franck N, Georgieff N, Proust J, Pacherie E, Dalery J, Jeannerod M (1997) Looking for the agent. An investigation into consciousness of action and self-consciousness in schizophrenic patients. Cognition 65:71–86
Decety J (1996) Neural representations for action. Rev Neurosci 7:285–297
Decety J, Grèzes J (1999) Neural mechanisms subserving the perception of human actions. Trends Cogn Sci 3:172–178
Farrer C, Frith CD (2002) Experiencing oneself vs another person as being the cause of an action: the neural correlates of the experience of agency. Neuroimage 15:596–603
Fourneret P, Franck N, Slachevsky A, Jeannerod M (2001) Self-monitoring in schizophrenia revisited. Neuroreport 12:1203–1208
Franck N, Farrer C, Georgieff N, Marie-Cardine M, Dalery J, d'Amato T, Jeannerod M (2001) Defective recognition of one's own actions in patients with schizophrenia. Am J Psychiatry 158:454–459
Frith CD (1992) The cognitive neuropsychology of schizophrenia. Erlbaum, London
Frith CD, Blakemore S-J, Wolpert D (2000) Abnormalities in the awareness and control of action. Philos Trans R Soc Lond Ser B 355:1771–1788
Georgieff N, Jeannerod M (1998) Beyond consciousness of external reality: a "who" system for consciousness of action and self-consciousness. Conscious Cogn 7:465–477
Haggard P, Eimer M (1999) On the relation between brain potentials and the awareness of voluntary movements. Exp Brain Res 126:128–133
Haggard P, Magno E (1999) Localising awareness of action with transcranial magnetic stimulation. Exp Brain Res 127:102–107
Haggard P, Aschersleben G, Gehrke J, Prinz W (2002a) Action, binding, and awareness. In: Prinz W, Hommel B (eds) Common mechanisms in perception and action, attention and performance XIX. Oxford University Press, Oxford
Haggard P, Clark S, Kalogeras J (2002b) Voluntary action and conscious awareness. Nat Neurosci 5:382–385
Hall G (1991) Perceptual and associative learning. Clarendon, Oxford
Hari R, Hänninen R, Mäkinen T, Jousmäki V, Forss N, Seppä M, Salonen O (1998) Three hands: fragmentation of human bodily awareness. Neurosci Lett 240:131–134
Jeannerod M (1997) The cognitive neuroscience of action. Blackwell, Cambridge
Kleinbaum DG, Kupper LL, Muller KE (1988) Applied regression analysis and other multivariate methods, PWS-Kent Publishing Co., Boston
Libet B, Gleason CA, Wright EW, Pearl DK (1983) Time of conscious intention to act in relation to onset of cerebral activity (readiness-potential): the unconscious initiation of a freely voluntary act. Brain 106:623–642
Milne RJ, Aniss AM, Kay NE, Gandevia SC (1988) Reduction in perceived intensity of cutaneous stimuli during movement: a quantitative study. Exp Brain Res 70:569–576
Prinz W, Hommel B (eds) (2002) Common mechanisms in perception and action, attention and performance XIX. Oxford University Press, Oxford
Shore DI, Spence C, Klein RM (2001) Visual prior entry. Psychol Sci 12:205–212
Sternberg S, Knoll RL (1973) The perception of temporal order: fundamental issues and a general model. In: Kornblum S (ed) Attention and performance IV. Academic Press, New York
Wegner DM, Wheatley T (1999) Apparent mental causation. Sources of the experience of will. Am Psychol 54:480–492
Weiskrantz L, Elliot J, Darlington C (1971) Preliminary observations of tickling oneself. Nature 230:598–599
Wolpert DM (1997) Computational approaches to motor control. Trends Cogn Sci 1:209–216
Acknowledgements.
M.T. was supported by the Department of Psychology, University College London. P.H. was supported by a Research Fellowship from the Leverhulme Trust.
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Tsakiris, M., Haggard, P. Awareness of somatic events associated with a voluntary action. Exp Brain Res 149, 439–446 (2003). https://doi.org/10.1007/s00221-003-1386-8
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DOI: https://doi.org/10.1007/s00221-003-1386-8