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Open access Sep 2026

Dexamphetamine-induced striatal hyperdopaminergia attenuates reward-related neural activation: A11C-PHNO PET-fMRI study.

BACKGROUND Ventral striatum (VS) and ventromedial prefrontal cortex (vmPFC) encode the value of stimulus and outcome phases in a context-dependent manner to support motivated behaviour. In psychosis, disrupted motivational coding has been hypothesised to contribute to negative symptoms via reduced sensitivity to goal-r...

C. Zauchenberger, L. Vano, M. Veronese et al. · 0 citations
#artificial intelligence Preprint Apr 2026

Single-turn emergency psychiatric triage across 15 frontier AI chatbots

AI chatbots recognized most psychiatric emergencies but still missed clinically important cases and frequently over-triaged less urgent presentations, and further evaluations should examine how triage performance changes when clinically relevant information must be elicited through conversation.

V. Weilnhammer, Lennart Luettgau, Christopher Summerfield et al. · 2 citations

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