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Gallace A, Tan HZ, Spence C.Gallace A, et al. Among authors: spence c.Percept Psychophys. 2007 May;69(4):477-86. doi: 10.3758/bf03193905.Percept Psychophys. 2007.PMID: 17727101
Caclin A, Soto-Faraco S, Kingstone A, Spence C.Caclin A, et al. Among authors: spence c.Percept Psychophys. 2002 May;64(4):616-30. doi: 10.3758/bf03194730.Percept Psychophys. 2002.PMID: 12132762