Targeted perturbation of reward-anticipatory units in VLMs induces anhedonia-like effort avoidance and clinical-scale score drops without impairing baseline task competence.
and Hutchinson, Sam and Fedorenko, Evelina and Saxe, Rebecca R
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Reward Valuation in Vision Language Models: Causal Mechanisms Underlying Anhedonia
Targeted perturbation of reward-anticipatory units in VLMs induces anhedonia-like effort avoidance and clinical-scale score drops without impairing baseline task competence.