Results 31 to 40 of about 506,450 (362)
Cell-intrinsic effects of TorsinA(ΔE) disrupt dopamine release in a mouse model of TOR1A dystonia
Neurobiology of Disease, 2021 TOR1A-associated dystonia, otherwise known as DYT1 dystonia, is an inherited dystonia caused by a three base-pair deletion in the TOR1A gene (TOR1AΔE).
Anthony M. Downs +5 more
doaj
Representation learning with reward prediction errors [PDF]
arXiv, 2021 The Reward Prediction Error hypothesis proposes that phasic activity in the midbrain dopaminergic system reflects prediction errors needed for learning in reinforcement learning. Besides the well-documented association between dopamine and reward processing, dopamine is implicated in a variety of functions without a clear relationship to reward ...
arxiv
PLoS ONE, 2023 How the role of dopamine differs according to the evolution of eusociality and how it is required in the flexible society of Polistes paper wasps need further clarification.
Ken Sasaki +2 more
doaj +2 more sources
European Journal of Histochemistry, 2014 Dopamine D1 and D2 receptor immunohistochemistry and Golgi techniques were used to study the structure of the adult rat arcuate-median eminence complex, and determine the distribution of the dopamine D1 and D2 receptor immunoreactivities therein ...
W. Romero-Fernandez +7 more
doaj +1 more source
Putting Desire on a Budget: Dopamine and Energy Expenditure, Reconciling Reward and Resources
Frontiers in Integrative Neuroscience, 2012 Accumulating evidence indicates integration of dopamine function with metabolic signals, highlighting a potential role for dopamine in energy balance, frequently construed as modulating reward in response to homeostatic state.
Jeff A Beeler +3 more
doaj +1 more source
Action-modulated midbrain dopamine activity arises from distributed control policies [PDF]
arXiv, 2022 Animal behavior is driven by multiple brain regions working in parallel with distinct control policies. We present a biologically plausible model of off-policy reinforcement learning in the basal ganglia, which enables learning in such an architecture.
arxiv
Potential mechanisms for imperfect synchronization in parkinsonian basal ganglia [PDF]
PLoS One. 2012; 7(12): e51530, 2012 Neural activity in the brain of parkinsonian patients is characterized by the intermittently synchronized oscillatory dynamics. This imperfect synchronization, observed in the beta frequency band, is believed to be related to the hypokinetic motor symptoms of the disorder. Our study explores potential mechanisms behind this intermittent synchrony.
arxiv +1 more source
High concentration of dopamine treatment may induce acceleration of human sperm motility
Reproductive Medicine and Biology, 2022 Purpose In humans, catecholamines (including dopamine) have been identified in semen and fallopian tubes, while dopamine D2 receptors (D2DR) are found in the sperm midpiece region.
Hiroki Kanno +5 more
doaj +1 more source
Modeling ADHD in Drosophila: Investigating the Effects of Glucose on Dopamine Production Demonstrated by Locomotion [PDF]
arXiv, 2021 Hyperactivity is one of the hallmakrs of ADHD. Aberrant dopamine signaling is a major theme in ADHD and dopamine production is directly linked to the intensity and persistence of hyperactive conduct. The strength and persistence of hyperactivity responses in Drosophila to startle stimuli were measured in a study to determine the effects of sugar on ...
arxiv
A Cognitive Architecture for the Implementation of Emotions in Computing Systems [PDF]
BICA, Volume 15, January 2016, Pages 34-40, 2016 In this paper we present a new neurobiologically-inspired affective cognitive architecture: NEUCOGAR (NEUromodulating COGnitive ARchitecture). The objective of NEUCOGAR is the identification of a mapping from the influence of serotonin, dopamine and noradrenaline to the computing processes based on Von Neuman's architecture, in order to implement ...
arxiv +1 more source