Results 21 to 30 of about 26,579 (349)

Development of the early axon scaffold in the rostral brain of the small spotted cat shark (Scyliorhinus canicula) embryo [PDF]

open access: yes, 2014
International audienceThe cat shark is increasingly used as a model for Chondrichthyes, an evolutionarily important sister group of the bony vertebrates that include teleosts and tetrapods.
Schubert, Frank   +2 more
core   +3 more sources

The morphometric measurement of the brain stem in Turkish healthy subjects according to age and sex

open access: yesFolia Morphologica, 2020
Background: This paper determined the morphometric measurements of the brainstem including mesencephalon, pons and medulla using magnetic resonance imaging (MRI) in Turkish healthy population.
S. Ö. Polat   +3 more
doaj   +1 more source

Interhemispheric transcallosal transchoroidal approach for resection of a mesencephalic lesion

open access: yesArchives of Pediatric Neurosurgery, 2019
A 12 years old boy presented with strabismus, left third nerve palsy (ptosis, mydriasis, downward and abducted eye), and vertical conjugate gaze paresis.
Lucas Pires Augusto   +2 more
doaj   +1 more source

Anxiety and Depression Are Related to Higher Activity of Sphingolipid Metabolizing Enzymes in the Rat Brain

open access: yesCells, 2020
Changes in sphingolipid metabolism have been suggested to contribute to the pathophysiology of major depression. In this study, we investigated the activity of acid and neutral sphingomyelinases (ASM, NSM) and ceramidases (AC, NC), respectively, in ...
Iulia Zoicas   +5 more
doaj   +1 more source

The factors for the early and late development of midbrain dopaminergic neurons segregate into two distinct evolutionary clusters

open access: yesBrain Disorders, 2021
Midbrain dopaminergic neurons are responsible for several functions in the reward system, control of emotion, motivation, cognition, and motor behavior.
Yulong Niu   +4 more
doaj   +1 more source

Halcyornis toliapicus (aves: Lower Eocene, England) indicates advanced neuromorphology in Mesozoic Neornithes [PDF]

open access: yes, 2011
Our recent X-ray micro computer-tomographic (μCT) investigations of Prophaethon shrubsolei and Odontopteryx toliapica from the Lower Eocene London Clay Formation of England revealed the avian brain to have been essentially modern in form by 55 Ma, but ...
Allison P. A.   +11 more
core   +1 more source

Hemiparkinsonism associated with mesencephalic cavernoma: case report and review of literature

open access: yesBrazilian Neurosurgery, 2011
Parkinsonism is a movement disorder characterized by resting tremor, slow and decreased movements (hypokinesia and akinesia), rigidity, postural instability, problems with gait, and coordination.
Carlos Eduardo Dall’aglio Rocha   +2 more
doaj   +1 more source

MRI diffusion and perfusion alterations in the mesencephalon and pons as markers of disease and symptom reversibility in idiopathic normal pressure hydrocephalus.

open access: yesPLoS ONE, 2020
IntroductionCore symptomatology in idiopathic normal pressure hydrocephalus (iNPH) points at dysfunction in the mesencephalon and pons indicating pathological changes in these regions, but only a few studies have addressed the issue.
Simon Agerskov   +7 more
doaj   +1 more source

Possible Event-Related Potential Correlates of Voluntary Attention and Reflexive Attention in the Emei Music Frog

open access: yesBiology, 2022
Attention, referring to selective processing of task-related information, is central to cognition. It has been proposed that voluntary attention (driven by current goals or tasks and under top-down control) and reflexive attention (driven by stimulus ...
Wenjun Niu   +6 more
doaj   +1 more source

Isolation, characterization, and substrate properties of the external limiting membrane from the avian embryonic optic tectum [PDF]

open access: yes, 1990
The external limiting membrane of the avian embryonic optic tectum is isolated by mechanically separating the neuronal mesencephalon from the overlying mesenchymal tissue.
Adler   +58 more
core   +1 more source

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