Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"phasic dopamine"”.
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Phasic Dopamine Signaling During Ingestion: Modulation Across the Need-to-Satiety Arc
… at consuming the needed stimulus. The mesolimbic dopamine system plays a key role in driving and reinforcing such behaviors. While it is well established that physiological need states potentiate dopamine responses to relevant stimuli, less is known about how ongoing ingestion and the transition …
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Reward and prediction errors in Bayesian sensorimotor control
Midbrain dopamine neurons invigorate responses by signaling opportunity costs (tonic dopamine) and promote associative learning by encoding a reward prediction error signal (phasic dopamine). Recent studies on Bayesian sensorimotor control have implicated midbrain dopamine concentration in the …
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Association between Reward Sensitivity and Smoking Status in Major Depressive Disorder
… to be mediated through alternations in striatal dopamine activity. Similarly, chronic nicotine use is hypothesized to influence the mechanisms by which healthy and depressed individuals learn about rewards in their environment. However, the specific behavioral and neural mechanisms by which …
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FUNCTIONAL ROLES OF MIDBRAIN DOPAMINE NEURONS IN ASSOCIATIVE LEARNING
Dopamine signaling is thought to play a critical role in reward-related learning, and the predominant hypothesis proposes that dopamine neurons signal the expected reward values of sensory stimuli in the form of a short-latency phasic burst. Thus, the reward prediction hypothesis assumes that …
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A role for Dopamine neuron NMDA receptors in learning and decision-making
Midbrain dopamine has demonstrated roles in locomotion, motivation, associative learning, habit formation, action selection and cognition. The many functions of dopamine can be attributed to the multiple projection targets of midbrain dopaminergic nuclei and to the multiple characteristic modes of …
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ETHANOL INHIBITION OF DOPAMINE TRANSMISSION IN ANIMAL MODELS OF ALCOHOL ABUSE LIABILITY
Mesolimbic dopamine neurons, originating in the ventral tegmental area (VTA) and projecting to the nucleus accumbens (NAc), have been heavily implicated in the reinforcing and rewarding properties of natural and drug rewards and cues that predict these rewards. Ethanol's effects on dopaminergic …