algedonics

Interactions of mental states with one another, or changing relations of the organism and the environment, determine all sorts of changes in the quality of the mental states as regards pleasure and pain. To show how these changes come about is to obtain the laws of "algedonics."

1894, The Speaker - Volume 9, page 703

The conception of algedonics interests the physician, then, as far as it helps him to attempt to distinguish between a psychic or physical origin for the headache.

1908, Pennsylvania Medical Journal (1897-1923). - Volume 11, page 185

In that work there was presented for examination a theory of Algedonics which seemed more adequate to account for our pleasure-pain experiences than any I had met with in the published works of other students of the subject, and which appeared to avoid the difficulties that had heretofore availed to discredit the hedonic theory of Aesthetics.

1909, Henry Rutgers Marshall, Consciousness, page vii

The plant is adaptive to environmental changes (we have discussed how this could be done through algedonics). But the built-in control systems keep going wrong.

1994, Roger Harnden, Allenna Leonard, How many grapes went into the wine: Stafford Beer on the art and science of holistic management, →ISBN, page 138

The final point introduces the idea of 'algedonics' (from the Greek 'aldos', meaning pain, and 'hedos', or pleasure), a signal produced by a statistically recognised event, which is so important that it bypasses the usual channels and gets sent directly to S5.

2011, Angela Espinosa, Jon Walker, A Complexity Approach to Sustainability, →ISBN, page 64