Results 61 to 70 of about 1,008,844 (388)

Neural Anatomy of Primary Visual Cortex Limits Visual Working Memory.

open access: yesCerebral Cortex, 2016
Despite the immense processing power of the human brain, working memory storage is severely limited, and the neuroanatomical basis of these limitations has remained elusive. Here, we show that the stable storage limits of visual working memory for over 9
Johanna Bergmann   +4 more
semanticscholar   +1 more source

Comparative Analysis of the Anatomy of Two Populations of Red-Root Amaranth (Amaranthus retroflexus L.) [PDF]

open access: yesPesticidi i Fitomedicina, 2009
The anatomy of stems and leaves of two populations of the weed species Amaranthus retroflexus L. (red-root amaranth) (pop. AMARE1 having green stems covered in sparse hairs and pop.
Sava Vrbničanin   +4 more
doaj  

Autonomous image segmentation and identification of anatomical landmarks from lumbar spine intraoperative computed tomography scans using machine learning: A validation study

open access: yesJournal of Craniovertebral Junction and Spine, 2020
Purpose: Machine-learning algorithms are a subset of artificial intelligence that have proven to enhance analytics in medicine across various platforms. Spine surgery has the potential to benefit from improved hardware placement utilizing algorithms that
Krzyzstof Siemionow   +3 more
doaj   +1 more source

Stem Anatomy Confirms Tingia unita Is a Progymnosperm

open access: yesBiology, 2023
Tingia Halle, a representative genus of the Cathaysia Flora, has been studied for nearly 100 years, being a small heterosporous tree based on the gross morphology of Tingia unita. However, the systematic affinity of Tingia is uncertain.
Yang Yang, Shi-Jun Wang, Jun Wang
doaj   +1 more source

Anomalous morphology in left hemisphere motor and premotor cortex of children who stutter [PDF]

open access: yes, 2018
Stuttering is a neurodevelopmental disorder that affects the smooth flow of speech production. Stuttering onset occurs during a dynamic period of development when children first start learning to formulate sentences.
Chang, Soo-Eun   +5 more
core   +1 more source

Improved Segmentation of Deep Sulci in Cortical Gray Matter Using a Deep Learning Framework Incorporating Laplace's Equation [PDF]

open access: yesarXiv, 2023
When developing tools for automated cortical segmentation, the ability to produce topologically correct segmentations is important in order to compute geometrically valid morphometry measures. In practice, accurate cortical segmentation is challenged by image artifacts and the highly convoluted anatomy of the cortex itself.
arxiv  

Anatomo-functional correspondence in the voice-selective regions of human prefrontal cortex

open access: yesNeuroImage, 2023
Group level analyses of functional regions involved in voice perception show evidence of 3 sets of bilateral voice-sensitive activations in the human prefrontal cortex, named the anterior, middle and posterior Frontal Voice Areas (FVAs).
Mélina Cordeau   +7 more
doaj  

What makes a frontal area of primate brain the frontal eye field?

open access: yesFrontiers in Integrative Neuroscience, 2015
The frontal eye field region (FEF) of the oculomotor pathways has been intensely studied. The primary goal of this review is to illustrate the phylogenetic displacement of the FEF locus in primate species. The locus is arrayed along the arcuate sulcus in
Pierre ePouget, Chantal eFrançois
doaj   +1 more source

Mean-field modeling of the basal ganglia-thalamocortical system. I. Firing rates in healthy and parkinsonian states [PDF]

open access: yesJ. Theor. Biol. 257: 642-663 (2009), 2018
Parkinsonism leads to various electrophysiological changes in the basal ganglia-thalamocortical system (BGTCS), often including elevated discharge rates of the subthalamic nucleus (STN) and the output nuclei, and reduced activity of the globus pallidus external segment (GPe).
arxiv   +1 more source

Role of right posterior parietal cortex in maintaining attention to spatial locations over time [PDF]

open access: yes, 2009
Recent models of human posterior parietal cortex (PPC) have variously emphasized its role in spatial perception, visuomotor control or directing attention. However, neuroimaging and lesion studies also suggest that the right PPC might play a special role
Adler   +92 more
core   +2 more sources

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