Results 21 to 30 of about 104,006 (269)

Neural bases of reward anticipation in healthy individuals with low, mid, and high levels of schizotypy

open access: yesScientific Reports, 2023
A growing body of research has placed the ventral striatum at the center of a network of cerebral regions involved in anticipating rewards in healthy controls.
F. Carruzzo   +5 more
doaj   +1 more source

Contextual novelty changes reward representations in the striatum [PDF]

open access: yes, 2010
Reward representation in ventral striatum is boosted by perceptual novelty, although the mechanism of this effect remains elusive. Animal studies indicate a functional loop (Lisman and Grace, 2005) that includes hippocampus, ventral striatum, and ...
Bunzeck, N.   +4 more
core   +1 more source

An open cortico-basal ganglia loop allows limbic control over motor output via the nigrothalamic pathway

open access: yeseLife, 2019
Cortico-basal ganglia-thalamocortical loops are largely conceived as parallel circuits that process limbic, associative, and sensorimotor information separately. Whether and how these functionally distinct loops interact remains unclear.
Sho Aoki   +8 more
doaj   +1 more source

Human Dorsal Striatal Activity during Choice Discriminates Reinforcement Learning Behavior from the Gambler’s Fallacy [PDF]

open access: yes, 2011
Reinforcement learning theory has generated substantial interest in neurobiology, particularly because of the resemblance between phasic dopamine and reward prediction errors.
Jessup, Ryan K., O'Doherty, John P.
core   +1 more source

Frontostriatal Maturation Predicts Cognitive Control Failure to Appetitive Cues in Adolescents [PDF]

open access: yes, 2011
Adolescent risk-taking is a public health issue that increases the odds of poor lifetime outcomes. One factor thought to influence adolescents' propensity for risk-taking is an enhanced sensitivity to appetitive cues, relative to an immature capacity to ...
B. J. Casey   +7 more
core   +2 more sources

Reply: Differential functions of ventral and dorsal striatum [PDF]

open access: yesBrain, 2015
Sir, In their letter concerning our recent report, Drs Zeighami and Moustafa discuss several previous studies investigating the functions of the ventral and dorsal striatum and the dissociation between action-value and stimulus-value learning. They note that in light of much of this previous work, our findings regarding Patient XG—who suffered ...
Khoi, Vo   +3 more
openaire   +2 more sources

Dissociating the Role of the Orbitofrontal Cortex and the Striatum in the Computation of Goal Values and Prediction Errors [PDF]

open access: yes, 2008
To make sound economic decisions, the brain needs to compute several different value-related signals. These include goal values that measure the predicted reward that results from the outcome generated by each of the actions under consideration, decision
Camerer, Colin F.   +4 more
core   +3 more sources

Interspecies Differences in the Connectivity of Ventral Striatal Components Between Humans and Macaques

open access: yesFrontiers in Neuroscience, 2019
Although the evolutionarily conserved functions of the ventral striatal components have been used as a priori knowledge for further study, whether these functions are conserved between species remains unclear.
Xiaoluan Xia   +13 more
doaj   +1 more source

Cigarette Use and Striatal Dopamine D2/3 Receptors: Possible Role in the Link between Smoking and Nicotine Dependence. [PDF]

open access: yes, 2016
BackgroundCigarette smoking induces dopamine release in the striatum, and smoking- or nicotine-induced ventral striatal dopamine release is correlated with nicotine dependence.
London, Edythe D   +2 more
core   +2 more sources

Expectancies in decision making, reinforcement learning, and ventral striatum [PDF]

open access: yesFrontiers in Neuroscience, 2010
Decisions can arise in different ways, such as from a gut feeling, doing what worked last time, or planful deliberation. Different decision-making systems are dissociable behaviorally, map onto distinct brain systems, and have different computational demands. For instance, "model-free" decision strategies use prediction errors to estimate scalar action
Matthijs A A Van Der Meer   +1 more
openaire   +3 more sources

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