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Volumn 2, Issue DEC, 2011, Pages

Early goal-directed top-down influences in the production of speech

Author keywords

Categorization; ERPs; Goal directed processing; Lexical access; Speech production

Indexed keywords


EID: 84867087476     PISSN: None     EISSN: 16641078     Source Type: Journal    
DOI: 10.3389/fpsyg.2011.00371     Document Type: Article
Times cited : (19)

References (58)
  • 1
    • 0038066697 scopus 로고    scopus 로고
    • A cortical mechanism for triggering top-down facilitation in visual object recognition
    • Bar, M. (2003). A cortical mechanism for triggering top-down facilitation in visual object recognition. J. Cogn. Neurosci. 15, 600-609.
    • (2003) J. Cogn. Neurosci. , vol.15 , pp. 600-609
    • Bar, M.1
  • 4
    • 40049095682 scopus 로고    scopus 로고
    • Phonological processing of ignored distractor pictures, an fMRI investigation
    • doi:10.1186/1471-2202-9-20
    • Bles, M., and Jansma, B. M. (2008). Phonological processing of ignored distractor pictures, an fMRI investigation. BMC Neurosci. 9, 20. doi:10.1186/1471-2202-9-20.
    • (2008) BMC Neurosci. , vol.9 , pp. 20
    • Bles, M.1    Jansma, B.M.2
  • 5
    • 0037396666 scopus 로고    scopus 로고
    • Semantic facilitation and semantic interference in word translation: implications for models of lexical access in language production
    • Bloem, I., and La Heij, W. (2003). Semantic facilitation and semantic interference in word translation: implications for models of lexical access in language production. J. Mem. Lang. 48, 468-488.
    • (2003) J. Mem. Lang. , vol.48 , pp. 468-488
    • Bloem, I.1    La Heij, W.2
  • 6
    • 0001483584 scopus 로고    scopus 로고
    • How many levels of processing are there in lexical access?
    • Caramazza, A. (1997). How many levels of processing are there in lexical access? Cogn. Neuropsychol. 14, 177-208.
    • (1997) Cogn. Neuropsychol , vol.14 , pp. 177-208
    • Caramazza, A.1
  • 7
    • 68949163692 scopus 로고    scopus 로고
    • Primed picture naming within and across languages: an ERP investigation
    • Chauncey, K., Holcomb, P. J., and Grainger, J. (2009). Primed picture naming within and across languages: an ERP investigation. Cogn. Affect. Behav. Neurosci. 9, 286-303.
    • (2009) Cogn. Affect. Behav. Neurosci. , vol.9 , pp. 286-303
    • Chauncey, K.1    Holcomb, P.J.2    Grainger, J.3
  • 8
    • 34147145295 scopus 로고    scopus 로고
    • Bilingual language control: an event-related brain potential study
    • Christoffels, I. K., Firk, C., and Schiller, N. O. (2007). Bilingual language control: an event-related brain potential study. Brain Res. 1147, 192-208.
    • (2007) Brain Res. , vol.1147 , pp. 192-208
    • Christoffels, I.K.1    Firk, C.2    Schiller, N.O.3
  • 9
    • 0025194106 scopus 로고
    • Attentional modulation of neural processing of shape, color, and velocity in humans
    • Corbetta, M., Miezin, F. M., Dobmeyer, S., Shulman, G. L., and Petersen, S. E. (1990). Attentional modulation of neural processing of shape, color, and velocity in humans. Science 248, 1556-1559.
    • (1990) Science , vol.248 , pp. 1556-1559
    • Corbetta, M.1    Miezin, F.M.2    Dobmeyer, S.3    Shulman, G.L.4    Petersen, S.E.5
  • 10
    • 0036007299 scopus 로고    scopus 로고
    • The production of noun phrases in English and Spanish: implications for the scope of phonological encoding in speech production
    • Costa, A., and Caramazza, A. (2002). The production of noun phrases in English and Spanish: implications for the scope of phonological encoding in speech production. J. Mem. Lang. 46, 178-198.
    • (2002) J. Mem. Lang. , vol.46 , pp. 178-198
    • Costa, A.1    Caramazza, A.2
  • 11
    • 75849156615 scopus 로고    scopus 로고
    • The time course of word retrieval revealed by eventrelated brain potentials during overt speech
    • Costa, A., Strijkers, K., Martin, C., and Thierry, G. (2009). The time course of word retrieval revealed by eventrelated brain potentials during overt speech. Proc. Natl. Acad. Sci. U.S.A. 106, 21442-21446.
    • (2009) Proc. Natl. Acad. Sci. U.S.A. , vol.106 , pp. 21442-21446
    • Costa, A.1    Strijkers, K.2    Martin, C.3    Thierry, G.4
  • 12
    • 0033092272 scopus 로고    scopus 로고
    • Semantic and phonological information flow in the production lexicon
    • Cutting, J. C., and Ferreira, V. S. (1999). Semantic and phonological information flow in the production lexicon. J. Exp. Psychol. Learn. Mem. Cogn. 25, 318-344.
    • (1999) J. Exp. Psychol. Learn. Mem. Cogn. , vol.25 , pp. 318-344
    • Cutting, J.C.1    Ferreira, V.S.2
  • 13
    • 0022742280 scopus 로고
    • A spreadingactivation theory of retrieval in sentence production
    • Dell, G. S. (1986). A spreadingactivation theory of retrieval in sentence production. Psychol. Rev. 93, 283-321.
    • (1986) Psychol. Rev. , vol.93 , pp. 283-321
    • Dell, G.S.1
  • 14
    • 0032825742 scopus 로고    scopus 로고
    • Unconscious semantic priming from pictures
    • Dell'Acqua, R., and Grainger, J. (1999). Unconscious semantic priming from pictures. Cognition 73, B1-B15.
    • (1999) Cognition , vol.73
    • Dell'Acqua, R.1    Grainger, J.2
  • 15
    • 84866777874 scopus 로고    scopus 로고
    • ERP evidence for ultra-fast semantic processing in the picture-word interference paradigm
    • doi:10.3389/fpsyg.2010.00177
    • Dell'Acqua, R., Sessa, P., Peressotti, F., Mulatti, C., Navarrete, E., and Grainger, J. (2010). ERP evidence for ultra-fast semantic processing in the picture-word interference paradigm. Front. Psychol. 1:177. doi:10.3389/fpsyg.2010.00177.
    • (2010) Front. Psychol. , vol.1 , pp. 177
    • Dell'Acqua, R.1    Sessa, P.2    Peressotti, F.3    Mulatti, C.4    Navarrete, E.5    Grainger, J.6
  • 16
    • 0028951934 scopus 로고
    • Neural mechanisms of selective visual attention
    • Desimone, R., and Duncan, J. (1995). Neural mechanisms of selective visual attention. Annu. Rev. Neurosci. 18, 193-222.
    • (1995) Annu. Rev. Neurosci. , vol.18 , pp. 193-222
    • Desimone, R.1    Duncan, J.2
  • 17
    • 0035490101 scopus 로고    scopus 로고
    • Dynamic predictions: oscillations and synchrony in top-down processing
    • Engel, A. K., Fries, P., and Singer, W. (2001). Dynamic predictions: oscillations and synchrony in top-down processing. Nat. Rev. Neurosci. 2, 704-716.
    • (2001) Nat. Rev. Neurosci. , vol.2 , pp. 704-716
    • Engel, A.K.1    Fries, P.2    Singer, W.3
  • 18
    • 34250208446 scopus 로고    scopus 로고
    • Thinking ahead: the role and roots of prediction in language comprehension
    • Federmeier, K. D. (2007). Thinking ahead: the role and roots of prediction in language comprehension. Psychophysiology 44, 491-505.
    • (2007) Psychophysiology , vol.44 , pp. 491-505
    • Federmeier, K.D.1
  • 19
    • 0036119994 scopus 로고    scopus 로고
    • Picture the difference: electrophysiological investigations of picture processing in the twocerebral hemispheres
    • Federmeier, K. D., and Kutas, M. (2002). Picture the difference: electrophysiological investigations of picture processing in the twocerebral hemispheres. Neuropsychologia 40, 730-747.
    • (2002) Neuropsychologia , vol.40 , pp. 730-747
    • Federmeier, K.D.1    Kutas, M.2
  • 20
    • 17244374518 scopus 로고    scopus 로고
    • Aging in context: age-related changes in context use during language comprehension
    • Federmeier, K. D., and Kutas, M. (2005). Aging in context: age-related changes in context use during language comprehension. Psychophysi-ology 42, 133-141.
    • (2005) Psychophysi-ology , vol.42 , pp. 133-141
    • Federmeier, K.D.1    Kutas, M.2
  • 21
    • 33644873473 scopus 로고    scopus 로고
    • Both sides get the point: hemispheric sensitivities to sentential constraint
    • Federmeier, K. D., Mai, H., and Kutas, M. (2005). Both sides get the point: hemispheric sensitivities to sentential constraint. Mem. Cognit. 33, 871-886.
    • (2005) Mem. Cognit. , vol.33 , pp. 871-886
    • Federmeier, K.D.1    Mai, H.2    Kutas, M.3
  • 22
    • 34047243862 scopus 로고    scopus 로고
    • Multiple effects of sentential constraint on word processing
    • Federmeier, K. D., Wlotko, E., De Ochoa-Dewald, E., and Kutas, M. (2007). Multiple effects of sentential constraint on word processing. Brain Res. 1146, 75-84.
    • (2007) Brain Res. , vol.1146 , pp. 75-84
    • Federmeier, K.D.1    Wlotko, E.2    De Ochoa-Dewald, E.3    Kutas, M.4
  • 23
    • 0344990172 scopus 로고    scopus 로고
    • Perceptual interference supports a non-modular account of face processing
    • Gauthier, I., Curran, T., Curby, K. M., and Collins, D. (2003). Perceptual interference supports a non-modular account of face processing. Nat. Neurosci. 6, 428-432.
    • (2003) Nat. Neurosci. , vol.6 , pp. 428-432
    • Gauthier, I.1    Curran, T.2    Curby, K.M.3    Collins, D.4
  • 24
    • 34249786246 scopus 로고    scopus 로고
    • Brain states: top-down influences in sensory processing
    • Gilbert, C. D., and Sigman, M. (2007). Brain states: top-down influences in sensory processing. Neuron 54, 677-696.
    • (2007) Neuron , vol.54 , pp. 677-696
    • Gilbert, C.D.1    Sigman, M.2
  • 25
    • 0024637423 scopus 로고
    • Context effects on Stroop-like word and picture processing
    • Glaser, W. R., and Glaser, M. O. (1989). Context effects on Stroop-like word and picture processing. J. Exp. Psy-chol. Gen. 118, 13-42.
    • (1989) J. Exp. Psy-chol. Gen. , vol.118 , pp. 13-42
    • Glaser, W.R.1    Glaser, M.O.2
  • 26
    • 0021711437 scopus 로고
    • Selective attention to color and location: an analysis with event-related brain potentials
    • Hillyard, S. A., and Munte, T. F. (1984). Selective attention to color and location: an analysis with event-related brain potentials. Percept. Psychophys. 36, 185-198.
    • (1984) Percept. Psychophys. , vol.36 , pp. 185-198
    • Hillyard, S.A.1    Munte, T.F.2
  • 27
    • 0032578301 scopus 로고    scopus 로고
    • Sensory gain control (amplification) as a mechanism of selective attention: electrophysiological and neuroimaging evidence
    • Hillyard, S. A., Vogel, E. K., and Luck, S. J. (1998). Sensory gain control (amplification) as a mechanism of selective attention: electrophysiological and neuroimaging evidence. Philos. Trans. R. Soc. Lond. B Biol. Sci. 353, 1257-1267.
    • (1998) Philos. Trans. R. Soc. Lond. B Biol. Sci. , vol.353 , pp. 1257-1267
    • Hillyard, S.A.1    Vogel, E.K.2    Luck, S.J.3
  • 28
    • 4244097763 scopus 로고
    • Word frequency effects in speech production: retrieval of syntactic information and of phonological form
    • Jescheniak, J. D., and Levelt, W. J. M. (1994). Word frequency effects in speech production: retrieval of syntactic information and of phonological form. J. Exp. Psychol. Learn. Mem. Cogn. 20, 824-843.
    • (1994) J. Exp. Psychol. Learn. Mem. Cogn. , vol.20 , pp. 824-843
    • Jescheniak, J.D.1    Levelt, W.J.M.2
  • 29
    • 27544444576 scopus 로고    scopus 로고
    • The face-sensitive N170 and VPP components manifest the same brain processes: the effect of reference electrode site
    • Joyce, C., and Rossion, B. (2005). The face-sensitive N170 and VPP components manifest the same brain processes: the effect of reference electrode site. Clin. Neurophysiol. 116, 2613-2631.
    • (2005) Clin. Neurophysiol. , vol.116 , pp. 2613-2631
    • Joyce, C.1    Rossion, B.2
  • 30
    • 0033119325 scopus 로고    scopus 로고
    • Increased activity in human visual cortex during directed attention in the absence of visual stimulation
    • Kastner, S., Pinsk, M., De Weerd, P., Desimone, R., and Ungerleider, L. (1999). Increased activity in human visual cortex during directed attention in the absence of visual stimulation. Neuron 22, 751-761.
    • (1999) Neuron , vol.22 , pp. 751-761
    • Kastner, S.1    Pinsk, M.2    De Weerd, P.3    Desimone, R.4    Ungerleider, L.5
  • 31
    • 0034039283 scopus 로고    scopus 로고
    • Mechanisms of visual attention in the human cortex
    • Kastner, S., and Ungerleider, L. G. (2000). Mechanisms of visual attention in the human cortex. Annu. Rev. Neurosci. 23, 315-341.
    • (2000) Annu. Rev. Neurosci. , vol.23 , pp. 315-341
    • Kastner, S.1    Ungerleider, L.G.2
  • 32
    • 55349112145 scopus 로고    scopus 로고
    • Morphological priming in overt language production: electrophysiological evidence from Dutch
    • Koester, D., and Schiller, N. (2008). Morphological priming in overt language production: electrophysiological evidence from Dutch. Neuroim-age 42, 1622-1630.
    • (2008) Neuroim-age , vol.42 , pp. 1622-1630
    • Koester, D.1    Schiller, N.2
  • 33
    • 0001932765 scopus 로고
    • Recognizing words, pictures, and concepts: a comparison of lexical, object, and reality decisions
    • Kroll, J. F., and Potter, M. C. (1984). Recognizing words, pictures, and concepts: a comparison of lexical, object, and reality decisions. J. Verbal Learn Verbal Behav. 23, 39-66.
    • (1984) J. Verbal Learn Verbal Behav. , vol.23 , pp. 39-66
    • Kroll, J.F.1    Potter, M.C.2
  • 34
    • 0032943679 scopus 로고    scopus 로고
    • A theory of lexical access in speech production
    • Levelt, W. J. M., Roelofs, A., and Meyer, A. S. (1999). A theory of lexical access in speech production. Behav. Brain Sci. 22, 1-75.
    • (1999) Behav. Brain Sci. , vol.22 , pp. 1-75
    • Levelt, W.J.M.1    Roelofs, A.2    Meyer, A.S.3
  • 36
    • 0036730454 scopus 로고    scopus 로고
    • Stages of processing in face perception:an MEG study
    • Liu, J., Harris, A., and Kanwisher, N. (2002). Stages of processing in face perception:an MEG study. Nat. Neu-rosci. 5, 910-916.
    • (2002) Nat. Neu-rosci. , vol.5 , pp. 910-916
    • Liu, J.1    Harris, A.2    Kanwisher, N.3
  • 37
    • 0031018033 scopus 로고    scopus 로고
    • Neural mechanisms of spatial selective attention in areas V1, V2, and V4 of macaque visual cortex
    • Luck, S. J., Chelazzi, L., Hillyard, S. A., and Desimone, R. (1997). Neural mechanisms of spatial selective attention in areas V1, V2, and V4 of macaque visual cortex. J. Neuro-physiol. 77, 24-42.
    • (1997) J. Neuro-physiol. , vol.77 , pp. 24-42
    • Luck, S.J.1    Chelazzi, L.2    Hillyard, S.A.3    Desimone, R.4
  • 38
    • 0028202453 scopus 로고
    • Electrophysiological correlates of feature analysis during visual search
    • Luck, S. J., and Hillyard, S. A. (1994). Electrophysiological correlates of feature analysis during visual search. Psychophysiology 31, 291-308.
    • (1994) Psychophysiology , vol.31 , pp. 291-308
    • Luck, S.J.1    Hillyard, S.A.2
  • 39
    • 0003279292 scopus 로고
    • Mechanisms and models of selective attention
    • eds M. D. Rugg and M. G. H. Coles (Oxford: Oxford University Press)
    • Mangun, G. R., and Hillyard, S. A. (1995). "Mechanisms and models of selective attention," in Elec-trophysiology of Mind, eds M. D. Rugg and M. G. H. Coles (Oxford: Oxford University Press), 40-85.
    • (1995) Elec-trophysiology of Mind , pp. 40-85
    • Mangun, G.R.1    Hillyard, S.A.2
  • 40
    • 0037675712 scopus 로고    scopus 로고
    • The visual word form area: expertise for reading in the fusiform gyrus
    • McCandliss, B. D., Cohen, L., and Dehaene, S. (2003). The visual word form area: expertise for reading in the fusiform gyrus. Trends Cogn. Sci. 7, 293-299.
    • (2003) Trends Cogn. Sci. , vol.7 , pp. 293-299
    • McCandliss, B.D.1    Cohen, L.2    Dehaene, S.3
  • 42
    • 0032060018 scopus 로고    scopus 로고
    • Viewing and naming objects: eye movements during noun phrase production
    • Meyer, A. S., Sleiderink, A. M., and Levelt, W. J. M. (1998). Viewing and naming objects: eye movements during noun phrase production. Cogni-tion 66, 25-33.
    • (1998) Cogni-tion , vol.66 , pp. 25-33
    • Meyer, A.S.1    Sleiderink, A.M.2    Levelt, W.J.M.3
  • 43
    • 85047670869 scopus 로고    scopus 로고
    • Evidence for a cascade model of lexical access in speech production
    • Morsella, E., and Miozzo, M. (2002). Evidence for a cascade model of lexical access in speech production. J. Exp. Psychol. Learn. Mem. Cogn. 28, 555-563.
    • (2002) J. Exp. Psychol. Learn. Mem. Cogn. , vol.28 , pp. 555-563
    • Morsella, E.1    Miozzo, M.2
  • 44
    • 24644464371 scopus 로고    scopus 로고
    • Phonological activation of ignored pictures: further evidence for a cascade model of lexical access
    • Navarrete, E., and Costa, A. (2005). Phonological activation of ignored pictures: further evidence for a cascade model of lexical access. J. Mem. Lang. 53, 359-377.
    • (2005) J. Mem. Lang. , vol.53 , pp. 359-377
    • Navarrete, E.1    Costa, A.2
  • 46
    • 0026824558 scopus 로고
    • A spreadingactivation theory of lemma retrieval in speaking
    • Roelofs, A. (1992). A spreadingactivation theory of lemma retrieval in speaking. Cognition 42, 107-142.
    • (1992) Cognition , vol.42 , pp. 107-142
    • Roelofs, A.1
  • 47
    • 85046396915 scopus 로고    scopus 로고
    • Goal-referenced selection of verbal action: modelling attentional control in the Stroop task
    • Roelofs, A. (2003). Goal-referenced selection of verbal action: modelling attentional control in the Stroop task. Psychol. Rev. 110, 88-125.
    • (2003) Psychol. Rev. , vol.110 , pp. 88-125
    • Roelofs, A.1
  • 48
    • 57749113655 scopus 로고    scopus 로고
    • Attention to spoken word planning: chronometric and neuroimaging evidence
    • Roelofs, A. (2008). Attention to spoken word planning: chronometric and neuroimaging evidence. Lang. Linguist. Compass 2, 389-405.
    • (2008) Lang. Linguist. Compass , vol.2 , pp. 389-405
    • Roelofs, A.1
  • 49
    • 0344983777 scopus 로고    scopus 로고
    • Early lateralization and orientation tuning for face, word, and object processing in the visual cortex
    • Rossion, B., Joyce, C. A., Cottrell, G. W., and Tarr, M. J. (2003). Early lateralization and orientation tuning for face, word, and object processing in the visual cortex. Neuroimage 20, 1609-1624.
    • (2003) Neuroimage , vol.20 , pp. 1609-1624
    • Rossion, B.1    Joyce, C.A.2    Cottrell, G.W.3    Tarr, M.J.4
  • 50
    • 0002364388 scopus 로고
    • Exploring the time course of lexical access in language production: picture-word interference studies
    • Schriefers, H., Meyer, A. S., and Levelt, W. J. M. (1990). Exploring the time course of lexical access in language production: picture-word interference studies. J. Mem. Lang. 29, 86-102.
    • (1990) J. Mem. Lang. , vol.29 , pp. 86-102
    • Schriefers, H.1    Meyer, A.S.2    Levelt, W.J.M.3
  • 51
    • 0018991099 scopus 로고
    • A standardized set of 260 pictures: norm for name agreement, image agreement, familiarity, and visual complexity
    • Snodgrass, J. G., and Vanderwart, M. (1980). A standardized set of 260 pictures: norm for name agreement, image agreement, familiarity, and visual complexity. J. Exp. Psychol. Hum. Learn. Mem. 6, 174-215.
    • (1980) J. Exp. Psychol. Hum. Learn. Mem. , vol.6 , pp. 174-215
    • Snodgrass, J.G.1    Vanderwart, M.2
  • 52
    • 0030505417 scopus 로고    scopus 로고
    • Time-course analysis of semantic and orthographic context effects in picture naming
    • Starreveld, P. A., and La Heij, W. (1996). Time-course analysis of semantic and orthographic context effects in picture naming. J. Exp. Psychol. Learn. Mem. Cogn. 22, 896-918.
    • (1996) J. Exp. Psychol. Learn. Mem. Cogn. , vol.22 , pp. 896-918
    • Starreveld, P.A.1    La Heij, W.2
  • 53
    • 77949384928 scopus 로고    scopus 로고
    • Tracking lexical access in speech production: electrophysiological correlates of word frequency and cognate effects
    • Strijkers, K., Costa, A., and Thierry, G. (2010). Tracking lexical access in speech production: electrophysiological correlates of word frequency and cognate effects. Cereb. Cortex 20, 912-928.
    • (2010) Cereb. Cortex , vol.20 , pp. 912-928
    • Strijkers, K.1    Costa, A.2    Thierry, G.3
  • 54
    • 80052034850 scopus 로고    scopus 로고
    • Conscious intention to speak proactively facilitates lexical access in object naming
    • Strijkers, K., Holcomb, P., and Costa, A. (2011). Conscious intention to speak proactively facilitates lexical access in object naming. J. Mem. Lang. 65, 345-362.
    • (2011) J. Mem. Lang. , vol.65 , pp. 345-362
    • Strijkers, K.1    Holcomb, P.2    Costa, A.3
  • 55
    • 0035234923 scopus 로고    scopus 로고
    • A neural basis for expert object recognition
    • Tanaka, J. W., and Curran, T. (2001). A neural basis for expert object recognition. Psychol. Sci. 12, 43-47.
    • (2001) Psychol. Sci. , vol.12 , pp. 43-47
    • Tanaka, J.W.1    Curran, T.2
  • 56
    • 33947641649 scopus 로고    scopus 로고
    • Controlling for interstimulus perceptual variance abolishes N170 face selectivity
    • Thierry, G., Martin, C. D., Downing, P., and Pegna, A. J. (2007). Controlling for interstimulus perceptual variance abolishes N170 face selectivity. Nat. Neurosci. 10, 505-511.
    • (2007) Nat. Neurosci. , vol.10 , pp. 505-511
    • Thierry, G.1    Martin, C.D.2    Downing, P.3    Pegna, A.J.4
  • 57
    • 0028854016 scopus 로고
    • Sequence seeking and counter streams: a computational model for bidirectional information flow in the visual cortex
    • Ullman, S. (1995). Sequence seeking and counter streams: a computational model for bidirectional information flow in the visual cortex. Cereb. Cortex 1, 1-11.
    • (1995) Cereb. Cortex , vol.1 , pp. 1-11
    • Ullman, S.1
  • 58
    • 79956107919 scopus 로고    scopus 로고
    • Words and pictures: an electrophysiological investigation of domain specific processing in native Chinese and English speakers
    • Yum, Y. N., Holcomb, P. J., and Grainger, J. (2011). Words and pictures: an electrophysiological investigation of domain specific processing in native Chinese and English speakers. Neuropsychologia 49, 1910-19220.
    • (2011) Neuropsychologia , vol.49 , pp. 1910-19220
    • Yum, Y.N.1    Holcomb, P.J.2    Grainger, J.3


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