Sökning: "reward prediction error"

Hittade 3 avhandlingar innehållade orden reward prediction error.

1. 1. Dopamine and the affective-cognitive gradient in the human striatum studied with multimodal brain imaging

   Författare :Filip Grill; Anna Rieckmann; Lars Nyberg; Alison Adcock; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dopamine; striatum; incentive; motor; associative; reinforcement learning; reward prediction error; positron emission tomography; functional magnetic resonance imaging; PET MR; cognitive modelling;

   Sammanfattning : Both dopamine and the dopamine rich brain area, striatum, have been linked to behaviors related to incentives, motor action, and associative processing. Most of the cortex sends projections to the striatum, these connections have been described as a gradient organization representing a repertoire of functional behaviors. LÄS MER

3. 2. A critic in action? A functional examination of the Striato-Pallido-Habenular circuit

   Författare :Moritz Weglage; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The basal ganglia (BG) and the midbrain dopamine (DA) system are considered key loci of reinforcement learning (RL), or learning by "trial and error", in the brain. The BG are implicated in action selection, and thus the "trial" part of the learning process, and the dopamine (DA) system is known to encode "error" signals. LÄS MER

4. 3. Dopamine, decision-making, and aging : neural and behavioural correlates

   Författare :Lieke de Boer; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : On any given day, we make tons of decisions. These can be as simple as deciding how to dress or what to eat, or more complex, such as whether to spend or invest money. Good decision-making involves being able to select the best alternative from a range of options, and adjust one’s preferences based on what is happening in the environment. LÄS MER