1. The delayed rod afterimage
2. Adler, M. J. 1967. The difference of man and the difference it makes. Holt, Rinehart and Winston, New York.
3. Allen, C. , and M. Bekoff. 1997. Species of mind: The philosophy and biology of cognitive ethology. MIT Press, Cambridge.
4. Arkin, A. M. 1978. Sleep talking. In A. M. Arkin, J. S. Antrobus, and S. J. Ellman (eds.), The mind in sleep: Psychology and psychophysiology, pp. 513–532. Lawrence Erlbaum Associates, Hillsdale, N.J.
5. Baars, B. J. 1997. In the theater of the mind: The workspace of the mind. Oxford University Press, Oxford.