Concept at a glance
- Definition: Cabanac’s (1971) term for the dependence of a stimulus’s pleasantness on the body’s internal state: the same external stimulus feels pleasant or unpleasant depending on interoceptive signals. Negative alliesthesia is a fall in valence with repeated exposure as the internal state changes (a second painful stimulus hurts less); positive alliesthesia is a rise.
- Also called: positive alliesthesia, negative alliesthesia
Notes
- Created with the Paulus & Stein (2010) ingest, the wiki’s only source for the term. Cabanac (1971, 1992) and the mood-regulation work built on it (Cabanac et al. 2002) are known only through that review.
Connections
- Related concepts: Homeostasis (and feelings as homeostatic sensations), Allostasis, Interoceptive psychopathology, Core affect, Interoceptive inference
- Key studies: Paulus & Stein (2010)
A physiological idea with a clinical use. Michel Cabanac (1971) observed that pleasure is not a fixed property of a stimulus: warm water is pleasant to a cold body and unpleasant to a hot one, food is pleasant when hungry and not when sated. The valence of what comes from outside depends on the state inside. Alliesthesia names that dependence.
Two directions:
- Negative alliesthesia: repeated stimulation changes the internal state so that the stimulus’s valence weakens. Similar to habituation, but defined relative to the body’s state rather than to response frequency.
- Positive alliesthesia: repeated stimulation strengthens valence. Similar to sensitization, with the same difference.
Why it is in this wiki
Paulus & Stein (2010) use it as one of the three mechanisms in their account of anxiety and depression. In their model, positive alliesthesia turns weak, ambiguous bodily signals into strongly negative ones and links them to predicted harm; the evidence they cite is greater skin-conductance increase and less habituation to repeated stressors in anxious individuals. It gives the Interoceptive psychopathology framework a mechanism for valence amplification that is distinct from misperceiving signal size.
It is also the oldest statement in the wiki of the idea that interoception sets the value of the world, which Allostasis and the Theory of constructed emotion later generalize. In that sense it belongs next to Homeostasis (and feelings as homeostatic sensations): pleasure as the signal that a stimulus corrects the internal state.
Caution
Held at one remove: the wiki has only Paulus & Stein’s summary, and their use of the term for anxious over-reactivity is an extension of Cabanac’s thermoregulation and feeding work rather than a test of it.