Gavin Bremner took his first degree in Psychology at St. Andrews University in 1974, and gained a D.Phil. in Developmental Psychology from the University of Oxford in 1978. In 1977 he obtained a Lectureship in Psychology at Lancaster University, where he spent his working career, becoming Professor of Developmental Psychology in 1994, and Professor Emeritus in 2021. His publications are mainly in the area of perceptual development in infancy. In 1988, he published his book "Infancy", which appeared in a second edition in 1994. He has co-edited numerous books on infant development.

Alan Slater was Associate Professor at Exeter University. He is the author of over 130 scientific articles, the majority of which are on infant development. He has collaborated with many internationally renowned infancy researchers and is a Fellow of the Association for Psychological Science for 'sustained and distinguished contributions to psychological science'.

George Butterworth (1946-2000) was an authority on infant development and the origins of thought and perception in infants. His research interests were broad, encompassing topics as varied as the origins of self-awareness in human development and evolution, and children's understanding of geographical features of the earth. George founded both the British Infancy Research Group and the journal Developmental Science. He was the first president of the European Society for Developmental Psychology and a former president of the British Psychological Society, Developmental Section. He was internationally respected for his scholarship and commitment to research.