I am currently elaborating a lineage explanation of a modern human behavioural trait: psychedelic pharmacophagy (or the beneficial ingestion of "mind-manifesting" substances).

The purpose is to show how small changes in biological and cultural mechanisms can take us from ancestral ape's rudimentary capacities for tolerating and sometimes exploiting secondary metabolites to modern humans' capacity to instrumentalize psychedelics in order to enhance cognition and social  bonding. In other words, I want to explain the origins of such an evolutionary novelty by making plausible certain trajectory of change through phenotypic space.

For this purpose, I would like to examine articles that have tried to do something similar, i.e. elaborate a lineage explanation of a behavioral trait (and not a physiological or morphological one like, say, the eyes) in order to have some examples to use as paradigmatic input.

Any advice and suggestions will be greatly appreciated.

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