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Electrophysiological correlates of stimulus processing in change blindness

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Abstract

Change blindness—the inability to detect salient changes when a distractor event occurs simultaneously—has been repeatedly used to investigate the neural correlates of awareness. The fact that the N2pc, which is basically assigned to attention processing, has been observed only for detected changes in such tasks lead to the assumption that this component may also reflect awareness. In contrast to previous electrophysiological studies, we used mudsplashes (experiment 1) or a very short blank (experiment 2) to induce change blindness so that the change was not occluded. A change, regardless of its detection, elicited a reliable N2pc. Successful change detection, however, was reflected in an enhanced amplitude of the N2pc component. Thus, the N2pc cannot be taken as a direct correlate of awareness but rather as a marker for a process that is necessary but not sufficient for awareness. Taking into account the generation of the N2pc in extrastriate visual areas, this finding fits nicely with the recent discussion about reentrant processing as a basis for visual awareness.

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References

  • Bar M, Tootell RBH, Schacter DL, Greve DN, Fischl B, Mendola JD, Rosen BR, Dale AM (2001) Cortical mechanisms specific to explicit visual object recognition. Neuron 29:529–535

    Article  PubMed  CAS  Google Scholar 

  • Bauer H (1984) Regulation of slow brain potentials affects task performance. In: Elbert T, Rockstroh B, Lutzenberger W, Birbaumer N (eds) Self-regulation of the brain and behavior. Springer, Heidelberg

    Google Scholar 

  • Beck DM, Rees G, Frith CD, Lavie N (2001) Neural correlates of change detection and change blindness. Nat Neurosci 4:645–650

    Article  PubMed  CAS  Google Scholar 

  • Becker MW, Pashler H, Anstis SM (2000) The role of iconic memory in change-detection tasks. Perception 29:273–286

    PubMed  CAS  Google Scholar 

  • Block N (1995) On a confusion about a function of consciousness. Behav Brain Sci 18:227–287

    Article  Google Scholar 

  • Block N (1996) How can we find the neural correlate of consciousness? Trends Neurosci 19:456–459

    Article  PubMed  CAS  Google Scholar 

  • Brisson B, Jolicoeur P (2007) Electrophysiological evidence of central interference on the control of visual-spatial attention. Psychon Bull Rev 14:126–132

    PubMed  Google Scholar 

  • Dell’Acqua R, Sessa P, Jolicoeur P, Robitaille N (2006) Spatial attention freezes during the attention blink. Psychophysiology 43:394–400

    Article  PubMed  CAS  Google Scholar 

  • Di Lollo V, Enns JT, Rensick RA (2000) Competition for consciousness among visual events: the psychophysics of reentrant visual processes. J Exp Psychol Gen 129:481–507

    Article  CAS  PubMed  Google Scholar 

  • Eimer M (1996) The N2pc component as an indicator of attentional selectivity. Electroencephalogr Clin Neurophysiol 99:225–234

    Article  PubMed  CAS  Google Scholar 

  • Eimer M, Mazza V (2005) Neural correlates of conscious change detection. Psychophysiology 42:328–342

    Article  PubMed  Google Scholar 

  • Hopf J-M, Luck SJ, Girelli M, Hagner T, Mangun GR, Scheich H, Heinze H-J (2000) Neuronal sources of focused attention in visual search. Cereb Cortex 10:1233–1241

    Article  PubMed  CAS  Google Scholar 

  • Hopf J-M, Mangun GR (2000) Shifting visual attention in space: an electrophysiological analysis using high spatial resolution mapping. Clin Neurophysiol 111:1241–1257

    Article  PubMed  CAS  Google Scholar 

  • Hopf JM, Boelmans K, Schoenfeld AM, Heinze HJ, Luck SJ (2002) How does attention attenuate target-distractor interference in vision? Evidence from magnetoencephalographic recordings. Cognitive Brain Res 15:17–29

    Article  Google Scholar 

  • Hopf JM, Boelmans K, Schoenfeld AM, Luck SJ, Heinze HJ (2004) Attention to features precedes attention to locations in visual search: evidence from electromagnetic brain responses in humans. J Neurosci 24:1822–1832

    Article  PubMed  CAS  Google Scholar 

  • Huettel SA, Guezeldere G, McCarthy G (2001) Dissociating the neural mechanisms of visual attention in change detection using functional MRI. J Cogn Neurosci 13:1006–1018

    Article  PubMed  CAS  Google Scholar 

  • Koivisto M, Revonsuo A (2003) An ERP study of change detection, change blindness, and visual awareness. Psychophysiology 40:423–429

    Article  PubMed  Google Scholar 

  • Lamme VAF (2003) Why visual attention and awareness are different. Trends Cogn Sci 7:12–18

    Article  PubMed  Google Scholar 

  • Landman R, Spekreijse H, Lamme VAF (2003) Large capacity storage of integrated objects before change blindness. Vision Res 43:149–164

    Article  PubMed  Google Scholar 

  • Luck SJ, Hillyard SA (1994) Spatial filtering during visual search: evidence from human electrophysiology. J Exp Psychol Hum Percep Perform 20:1000–1014

    Article  CAS  Google Scholar 

  • Niedeggen M, Wichmann P, Stoerig P (2001) Change blindness and time to consciousness. Eur J Neurosci 14:1719–1726

    Article  PubMed  CAS  Google Scholar 

  • O’Regan JK, Noe A (2001) A sensorimotor account of vision and visual consciousness. Behav Brain Sci 24:939–1031

    Article  PubMed  CAS  Google Scholar 

  • O’Regan JK, Rensink RA, Clark JJ (1999) Change-blindness as a result of “mudsplashes.” Nature 398:34

    Article  PubMed  CAS  Google Scholar 

  • Pashler H (1994) Dual-task interference in simple tasks: data and theory. Psychol Bull 116:220–244

    Article  PubMed  CAS  Google Scholar 

  • Pessoa L, Ungerleider LG (2004) Neural correlates of change detection and change blindness in a working memory task. Cereb Cortex 14:511–520

    Article  PubMed  Google Scholar 

  • Posner MI (1994) Attention: the mechanisms of consciousness. Proc Natl Acad Sci USA 91:7398–7403

    Article  PubMed  CAS  Google Scholar 

  • Rees G (2001) Seeing is not perceiving. Nat Neurosci 4:678–680

    Article  PubMed  CAS  Google Scholar 

  • Rensink RA, O’Regan JK, Clark JJ (1997) To see or not to see: the need for attention to perceive changes in scenes. Psychol Sci 8:368–373

    Article  Google Scholar 

  • Simons DJ (2000) Current approaches to change blindness. Vis Cogn 7:1–15

    Article  Google Scholar 

  • Tong F, Nakayama K, Vaughan JT, Kanwisher N (1998) Binocular rivalry and visual awareness in human extrastriate cortex. Neuron 21:753–759

    Article  PubMed  CAS  Google Scholar 

  • Turatto M, Angrilli A, Mazza V, Umilta C, Driver J (2002) Looking without seeing the background change: electrophysiological correlates of change detection versus change blindness. Cognition 84:B1–B10

    Article  PubMed  Google Scholar 

  • Woodman GF, Luck SJ (1999) Electrophysiological measurement of rapid shifts of attention during visual search. Nature 400:867–869

    Article  PubMed  CAS  Google Scholar 

  • Woodman GF, Luck SJ (2003a) Dissociations among attention, perception, and awareness during object-substitution masking. Psychol Sci 14:605–611

    Article  PubMed  Google Scholar 

  • Woodman GF, Luck SJ (2003b) Serial deployment of attention during visual search. J Exp Psychol Hum Percep Perform 29:121–138

    Article  Google Scholar 

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Acknowledgments

This project was carried out at the Max Planck Institute for Human Cognitive and Brain Sciences, Munich, Germany. The authors want to thank Claudia Licklederer who was involved in collecting and analyzing the data.

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Authors and Affiliations

  1. Department of Psychology, Ludwig Maximilian University Munich, Leopoldstrasse 13, 80802, Munich, Germany

    Andrea Schankin

  2. Leibniz Research Center for Working Environment and Human Factors, Ardeystrasse 67, 44139, Dortmund, Germany

    Edmund Wascher

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  1. Andrea Schankin
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  2. Edmund Wascher
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Correspondence to Andrea Schankin.

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Schankin, A., Wascher, E. Electrophysiological correlates of stimulus processing in change blindness. Exp Brain Res 183, 95–105 (2007). https://doi.org/10.1007/s00221-007-1023-z

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  • DOI: https://doi.org/10.1007/s00221-007-1023-z

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