Frontiers in Neuroscience
On the meaning of “plasticity” in neuroscience and mental health research and its relation to the action of psychedelic therapy
First-line dictionary definitions of “plasticity” describe it as the ability (of a thing) to be shaped or molded; we call this “plasticity proper” (PP). In neuroscience, however, “neural plasticity” or “neuroplasticity” is defined as an induced change in brain function or structure. These two plasticities are not the same. Several popular biomarkers of neuroplasticity index part of an evoked process, often linked to learning. Paradoxically, these processes often bias phenotypic canalization, the opposite of phenoty …