Results 31 to 40 of about 313,250 (274)

Differential Effects of Dopaminergic Therapies on Dorsal and Ventral Striatum in Parkinson's Disease: Implications for Cognitive Function

open access: yesParkinson's Disease, 2011
Cognitive abnormalities are a feature of Parkinson's disease (PD). Unlike motor symptoms that are clearly improved by dopaminergic therapy, the effect of dopamine replacement on cognition seems paradoxical.
Penny A. MacDonald, Oury Monchi
doaj   +1 more source

Illustrated Review of the Ventral Striatum’s Olfactory Tubercle [PDF]

open access: yesChemical Senses, 2016
Modern neuroscience often relies upon artistic renderings to illustrate key aspects of anatomy. These renderings can be in 2 or even 3 dimensions. Three-dimensional renderings are especially helpful in conceptualizing highly complex aspects of neuroanatomy which otherwise are not visually apparent in 2 dimensions or even intact biological samples ...
Angeline, Xiong, Daniel W, Wesson
openaire   +2 more sources

Three Papers in Neuroeconomics [PDF]

open access: yes, 2008
I consider the role of automatic psychological and neural processes in different settings. First, how does advertising affect consumer perceptions of a product?
Bhatt, Meghana A.
core   +1 more source

Ventral striatum gray matter density reduction in patients with schizophrenia and psychotic emotional dysregulation [PDF]

open access: yes, 2014
INTRODUCTION: Substantial heterogeneity remains across studies investigating changes in gray matter in schizophrenia. Differences in methodology, heterogeneous symptom patterns and symptom trajectories may contribute to inconsistent findings. To address
Karin Laimböck   +24 more
core   +2 more sources

Aversive event anticipation affects connectivity between the ventral striatum and the orbitofrontal cortex in an fMRI avoidance task. [PDF]

open access: yesPLoS ONE, 2013
Ability to anticipate aversive events is important for avoiding dangerous or unpleasant situations. The motivation to avoid an event is influenced by the incentive salience of an event-predicting cue. In an avoidance fMRI task we used tone intensities to
Ingeborg Bolstad   +5 more
doaj   +1 more source

Disrupted reinforcement learning during post-error slowing in ADHD.

open access: yesPLoS ONE, 2019
ADHD is associated with altered dopamine regulated reinforcement learning on prediction errors. Despite evidence of categorically altered error processing in ADHD, neuroimaging advances have largely investigated models of normal reinforcement learning in
Andre Chevrier   +5 more
doaj   +1 more source

An investigation into the function of single-neuron activity in the mesoaccumbens dopamine system of the rat [PDF]

open access: yes, 2012
The mesoaccumbens dopamine system has been implicated in many basic psychological processes (e.g. "wanting" and "liking") and illnesses (e.g. addiction, depression, schizophrenia).
Wilson, David Ian Greig
core   +2 more sources

Differences between Dorsal and Ventral Striatum in the Sensitivity of Tonically Active Neurons to Rewarding Events

open access: yesFrontiers in Systems Neuroscience, 2017
Within the striatum, cholinergic interneurons, electrophysiologically identified as tonically active neurons (TANs), represent a relatively homogeneous group in terms of their functional properties.
Kevin Marche   +2 more
doaj   +1 more source

Exercise-Induced Adaptations to the Mouse Striatal Adenosine System

open access: yesNeural Plasticity, 2020
Adenosine acts as a key regulator of striatum activity, in part, through the antagonistic modulation of dopamine activity. Exercise can increase adenosine activity in the brain, which may impair dopaminergic functions in the striatum.
Ella E. Bauer   +3 more
doaj   +1 more source

Increased turnover of dopamine in caudate nucleus of detoxified alcoholic patients. [PDF]

open access: yesPLoS ONE, 2013
A previous study of the DOPA decarboxylase substrate 6-[(18)F]fluoro-L-DOPA (FDOPA) with positron emission tomography (PET) detected no difference of the net blood-brain transfer rate (Kin(app)) between detoxified alcoholic patients and healthy controls.
Yoshitaka Kumakura   +11 more
doaj   +1 more source

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