Christopher J Stevens
@metaphysiology.eurosky.social
1.5K followers 1.4K following 6.2K posts
Lecturer/researcher in phil & neuro. Éireannach en France/migrant. Education, evolution, embodied mind/metaphysiology, memory, deliberation, myside bias, representation, reasoning, perspectivism, pragmatism. Universités de Bordeaux & Bdx-Montaigne.
![Who do we brain researchers think we are?
Christopher Stevens is a postdoc at INCIA. He originates from Dublin, Ireland, but did his university studies in philosophy in Paris (Nanterre, Paris X and La Sorbonne, Paris IV) before coming to Bordeaux to study neuroscience. He has a PhD in neuroscience from the University of Bordeaux (2022) and a PhD in philosophy from Université Bordeaux-Montaigne (2026). Currently, he is a postdoc in Serge Ahmed’s Choice, Addiction and Neurodysfunctions team, working on the question of how to model addiction-like phenotypes in non-human animals.
As neuroscientists, we are accustomed to seeing and using phrases like “the neurobiologicalunderpinnings of [such and such a phenotype of interest].” We also know that the phenotypes whose
neural bases we investigate are rarely easy to isolate and define, representing a challenge that often
demands years of back and forth between research at the internal neurobiological and research at the
externally observable (behavioral or symptomatic) levels. Indeed, where the object of investigation is
not satisfactorily defined, it can be the neurobiological underpinnings of something quite distinct from
our stated target that we end up fluorescing, recording, or activating/inhibiting, constituting research
digressions which often delay progress in the fitting direction. Illustrative of the challenge is the winding
path of research that led to behavioral and neuronal differentiation of the “passive” immobility of
learned helplessness and the “active” mobility-inhibiting freezing of adaptive fear response (1.
At more abstract levels of brain function, this definitional challenge only becomes trickier. Little
surprise, then, it is here that certain questions essential to progress in neuroscience become
indistinguishable from questions philosophy has been reflecting on for millennia: What is belief? What is thought? What is wanting or desire? Do our behaviors result from free will or are they determined b…](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:wwf3cqh3bolnpooqayufkmlh/bafkreih24iwxzq6ejj5pe4od74fpfb2etwejhnyfkxu6qxsxjv67vii7m4)
![Fig 3b from this preprint: "AI Assistance Reduces Persistence and Hurts Independent Performance" https://arxiv.org/pdf/2604.04721
"(b) Groups differ significantly at test (one-way ANOVA): participants who used AI for direct answers show the lowest solve rate and highest skip rate at test-time [participants who used AI for "Hints/clarity" showed similar solve and skip rates to controls]"](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:wwf3cqh3bolnpooqayufkmlh/bafkreihlhwcsf7rgbqcjailovdu23qbvgp7cklfgccucxrfqlhpfy2dcca)
