Hierarchical prediction errors during sensory learning (Iglesias et al. 2013, Neuron)
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Prediction errors are crucial teaching signals for learning. Here, we show that different prediction errors map onto distinct neurotransmitter systems: the dopaminergic midbrain signals prediction errors about visual stimulus outcomes, while the cholinergic basal forebrain encodes prediction errors about stimulus probabilities. <link http: www.cell.com neuron abstract external-link-new-window external link in new>Abstract | <link http: www.youtube.com external-link-new-window external link in new>Video | <link https: www.ethz.ch de news-und-veranstaltungen eth-news news irrtum-im-gehirn-beobachtet.html external-link-new-window external link in new>ETH News