1. Austin, J. L. (1946). Other minds. In J. Wisdom, J. L. Austen, J. Austin, & A. Ayer (Eds.), Symposium: Other minds, Proceedings of the Aristotelian Society, Supplementary Volumes, 20 (pp. 122–197).
2. Bennett, M. R., & Hacker, P. M. S. (2003). Philosophical foundations of neuroscience. Blackwell.
3. Dennett, D. C. (1969). Content and consciousness. Routledge and Kegan Paul.
4. Drifke, M. A., Tiger, J. H., & Gifford, M. R. (2019). Shifting preferences for choice-making opportunities through histories of differential reinforcer quality. Journal of Applied Behavior Analysis, 52(1), 227–239. https://doi.org/10.1002/jaba.515
5. Ferster, C. B., & Skinner, B. F. (1957). Schedules of reinforcement. Appleton-Century-Crofts. https://doi.org/10.1037/10627-000