In psychological thermodynamics, Mihály Csíkszentmihályi (pronounced Me-high Chick-sent-me-high) (1934-) is a Hungarian-born American psychologist noted for his positive psychology theories of flow, i.e. Csíkszentmihályi flow, or “states of optimal experience”, the use of the Freudian-Jungian terms psychic energy and psychic entropy in his analysis of states of mental life, and ideas on negentropism, e.g. psychic negentropy. [1] Csíkszentmihályi has stated that he was drawn into psychology after attending a lecture by Swiss psychologists Carl Jung. [2]

Some of Csíkszentmihályi's writings on entropy have been influentual to American entropy-ethics educator Dick Hammond, among others. [3]

References
1. (a) Csíkszentmihályi, Mihály. (1990). Flow – the Psychology of Optimal Experience. Harper Perennnial.
(b) Csíkszentmihályi, Mihály. (1994). The Evolving Self. Harper Perennial.
2. Csíkszentmihályi, Mihály. (2008). “Creativity, Fulfillment and Flow” (18:56 video), TED talks, October.
3. Hammond, Dick E. (2005). Human System from Entropy to Ethics, 4th ed. (eulogy ed. with commentary on post-doctorial mentor Ilya Prigogine). Publisher: Dick Hammond.