Results 111 to 120 of about 111,869 (302)

Intertemporal Decision-Making, Nucleus Accumbens Activation, and Alcohol Use Trajectories in Young Adults With a Family History of Alcohol Use Disorder. [PDF]

open access: yesAlcohol Clin Exp Res (Hoboken)
We conducted an fMRI investigation of the effects of family history on neural correlates of delay discounting in 163 young adults. Structural equation modeling demonstrated that the effects of family history on nucleus accumbens activation prospectively predicted alcohol use trajectories over a 4‐year period.
Elton A   +5 more
europepmc   +2 more sources

A Brain Motivated to Play: Insights into the Neurobiology of Playfulness

open access: yes, 2016
Play is an important part of normal childhood development and is seen in varied forms among many mammals. While not indispensable to normal development, playful social experiences as juveniles may provide an opportunity to develop flexible behavioural ...
Siviy, Stephen M.
core   +1 more source

Serotonin and motherhood: From molecules to mood [PDF]

open access: yes, 2019
Emerging research points to a valuable role of the monoamine neurotransmitter, serotonin, in the display of maternal behaviors and reproduction-associated plasticity in the maternal brain.
Li, Ming   +2 more
core   +3 more sources

Discordance of Dopaminergic Dysfunction and Subcortical Atrophy by α‐Synuclein Status in Sporadic and Genetic Parkinson's Disease

open access: yesMovement Disorders, EarlyView.
Abstract Background Parkinson's disease (PD) is characterized by predominantly neuronal α‐synuclein pathology and dopaminergic dysfunction. Cerebrospinal fluid (CSF) seeding amplification assays (SAA) detect α‐synuclein aggregates in vivo, but not all patients with PD have a positive SAA.
Michael Tran Duong   +186 more
wiley   +1 more source

In Vivo Mapping of Catecholaminergic Loss and Iron Deposition in Huntington's Disease

open access: yesMovement Disorders, EarlyView.
Abstract Background The pathophysiology of Huntington's disease (HD) remains obscure. Magnetic resonance imaging (MRI) can reveal in vivo molecular changes related to disease pathology. Objectives To investigate catecholaminergic neuronal integrity and subcortical brain iron accumulation in HD employing neuromelanin‐sensitive MRI, and quantitative ...
Edoardo R. de Natale   +11 more
wiley   +1 more source

Hypoactivity and neurochemical alterations in the basal ganglia of female Sprague-Dawley rats after repeated exposure to atrazine

open access: yesFrontiers in Toxicology
The herbicide atrazine (ATR) has been one of the most widely used herbicides worldwide. However, due to its indiscriminate use, it has been considered an environmental contaminant. Several studies have classified ATR as an endocrine disruptor, and it has
Triana Acevedo-Huergo   +5 more
doaj   +1 more source

Nucleus accumbens response to gains in reputation for the self relative to gains for others predicts social media use

open access: yesFrontiers in Human Neuroscience, 2013
Our reputation is important to us; we’ve experienced natural selection to care about our reputation. Recently, the neural processing of gains in reputation (positive social feedback concerning one’s character) has been shown to occur in the human ventral
Dar eMeshi   +10 more
doaj   +1 more source

Dopamine in the Nucleus Accumbens Signals Salience of Auditory Deviance. [PDF]

open access: yesEur J Neurosci
Using fiber photometry in freely moving rats, we show that nucleus accumbens dopamine signals the salience of violations of ongoing auditory regularities. Deviant sounds in an oddball sequence evoked larger dopamine responses than physically identical rare sounds in a many‐standards control, dissociating rule violation from rarity.
Iizuka R   +5 more
europepmc   +2 more sources

The Brain‐Age Gap in Pediatric Dystonia: Neuroanatomical Deviations Inform Deep Brain Stimulation Outcomes

open access: yesMovement Disorders, EarlyView.
Abstract Background Dystonia in children is a heterogeneous condition with variable response to deep brain stimulation (DBS). Brain‐age gap, a machine learning‐derived metric of structural deviation from norm, may capture signatures that differentiate underlying biotypes and predict outcomes.
Timur H. Latypov   +11 more
wiley   +1 more source

Alterations in subcortical magnetic susceptibility and disease-specific relationship with brain volume in major depressive disorder and schizophrenia

open access: yesTranslational Psychiatry
Quantitative susceptibility mapping is a magnetic resonance imaging technique that measures brain tissues’ magnetic susceptibility, including iron deposition and myelination.
Shuhei Shibukawa   +13 more
doaj   +1 more source

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