To the Editor

Bruce V. , & Young A.W. (1986). British Journal of Psychology, 77, 305–327

Campbell R. , Landis T. , & Regard M. (1986). Brain, 109, 509–521.

Hay DM. , & Young A.W. (1982). In AW. Ellis: Normality and pathology in cognitive functions. Academic Press: London.

McGurk H. , & McDonald J. (1976). Nature, 264, 746–748.