Perception's shadow: long-distance synchronization of human brain activity

Freeman, W. J. Mass Action in the Nervous System (Academic, New York, ( 1975)).

Damasio, A. R. Synchronous activation in multiple cortical regions: a mechanism for recall. Semin. Neurosci. 2, 287– 297 (1990).

Varela, F. J. Resonant cell assemblies: a new approach to cognitive function and neuronal synchrony. Biol. Res. 28, 81– 95 (1995).

Singer, W. & Gray, C. M. Visual feature integration and the temporal correlation hypothesis. Annu. Rev. Neurosci. 18, 555–586 (1995).

Bressler, S. L., Coppola, R. & Nakamura, R. Episodic multiregional cortical coherence at multiple frequencies during visual task performance. Nature 366, 153–156 (1993).

Gray, C. M., König, P., Engel, A. K. & Singer, W. Oscillatory responses in cat visual cortex exhibit inter-columnar synchronization which reflects global stimulus properties. Nature 338 , 334–337 (1989).

Vaadia, E. et al. Dynamics of neuronal interaction in the monkey cortex in relation to behavioral events. Nature 373, 515– 518 (1995).

Roelfsema, P. R., Engel, A. K., König, P. & Singer, W. Visuomotor integration is associated with the zero time-lag synchronization among cortical areas. Nature 385, 157– 161 (1997).

Neuenschwander, S., Engel, A., König, P., Singer, W. & Varela, F. Synchronization of neuronal responses in the optic tectum of awake pigeons. Vis. Neurosci. 13, 575–584 (1996).

Kreiter, A. K. & Singer, W. Stimulus-dependent synchronization of neuronal responses in the visual cortex of the awake macaque monkey. J. Neurosci. 16, 2381– 2396 (1996).

Llinas, R. & Ribary, U. Coherent 40 Hz oscillation characterizes dream state in humans. Proc. Natl Acad. Sci. USA 90, 2078–2081 ( 1993).

Tiitinen, H. et al. Selective attention enhances the auditory 40-Hz transient response in humans. Nature 364, 59– 60 (1993).

Desmedt, J. E. & Tomberg, C. Transient phase-locking of 40 Hz electrical oscillations in prefrontal parietal cortex reflects the process of conscious somatic perception. Neurosci. Lett. 168, 126–129 (1994).

Joliot, M., Ribary, U. & Llinas, R. Human oscillatory brain activity near 40 Hz coexists with cognitive temporal binding. Proc. Natl Acad. Sci. USA 91, 11748–11751 (1994).

Pantev, C. Evoked and induced gamma band activity of the human cortex. Brain Topogr. 7, 321–330 ( 1995).

Tallon-Baudry, C., Bertrand, O., Delpuech, C. & Pernier, J. Oscillatory gamma band (30–70 Hz) activity induced by a visual search task in human. J. Neurosci. 17, 722 –734 (1997).

Lachaux, J. P. et al. Gamma band activity in human intracortical recordings triggered by cognitive tasks. Eur. J. Neurosci.(submitted).

Mooney, C. M. Age in the development of closure ability in children. Can. J. Psychol. 11, 219–226 ( 1957).

George, N., Jemel, B., Fiori, N. & Renault, B. Face and shape repetition effects in humans: a spatio-temporal ERP study. NeuroReport 8, 1417–1423 ( 1997).

Mecklenbräuker, W. F. G. (ed.) The Wigner Distribution—Theory and Applications in Signal Processing (Elsevier, Amsterdam, (1993)).

Jeffreys, D. A. Evoked potentials studies of face and object processing. Vis. Cogn. 3, 1–38 (1996 ).

Lachaux, J. P., Rodriguez, E., Müller-Gerking, J., Martinerie, J. & Varela, F. J. Measuring phase-synchrony in brain signals. Hum. Brain Mapp.(submitted).

Menon, V. et al. Spatio-temporal correlations in human gamma band electrocorticograms. Electroencephalogr. Clin. Neurophysiol. 98, 89–102 (1996).

Yordanova, J., Kolev, V. & Demiralp, T. The phase-locking of auditory gamma band responses in humans is sensitive to task processing. NeuroReport 8, 3999–4004 (1997).

Dolan, R. J. et al. How the brain learns to see objects and faces in an impoverished context. Nature 389, 596– 599 (1997).

Friedman-Hill, S. R., Robertson, L. C. & Treisman, A. Parietal contributions to visual feature binding: evidence from a patient with bilateral lesions. Science 269, 853–855 (1995).

Shallice, T. et al. Brain regions associated with acquisition and retrieval of verbal episodic memory. Nature 368, 633– 635 (1994).