Results 41 to 50 of about 2,777,326 (193)

MR-based PET motion correction procedure for simultaneous MR-PET neuroimaging of human brain. [PDF]

PLoS ONE, 2012
Positron Emission Tomography (PET) images are prone to motion artefacts due to the long acquisition time of PET measurements. Recently, simultaneous magnetic resonance imaging (MRI) and PET have become available in the first generation of Hybrid MR-PET ...
Marcus Görge Ullisch, Jürgen Johann Scheins, Christoph Weirich, Elena Rota Kops, Abdullah Celik, Lutz Tellmann, Tony Stöcker, Hans Herzog, Nadim Jon Shah   +8 more
doaj   +1 more source

Functional MRI of postnatal visual development in normal rat superior colliculi [PDF]

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009
This study employed blood oxygenation level-dependent functional MRI (BOLD-fMRI) to evaluate the visual responses in the superior colliculus of the developing rat brain from the time of eyelid opening to adulthood. Upon flash illumination to the contralateral eye, the regional BOLD response underwent a systematic increase in amplitude with age ...
Xing, K, Chan, KC, Cheung, MM, Zhou, IY, Wu, EX   +4 more
openaire   +3 more sources

The involvement of the superior colliculi in hemispherectomized subjects with blindsight

Journal of Vision, 2010
Purpose: The ability in cortically blind patients to respond to visual stimuli without consciously experiencing has been termed ‘blindsight’. The goal of this study is to investigate the involvement of the superior colliculi (SC) in mediating blindsight in hemispherectomized (HS) subjects. Methods: We used the achromatic properties of collicular cells,
S. E. Leh, K. T. Mullen, A. Ptito
openaire   +1 more source

Sex-Specific Brain Deficits in Auditory Processing in an Animal Model of Cocaine-Related Schizophrenic Disorders

Brain Sciences, 2013
Cocaine is a psychostimulant in the pharmacological class of drugs called Local Anesthetics. Interestingly, cocaine is the only drug in this class that has a chemical formula comprised of a tropane ring and is, moreover, addictive.
Patricia A. Broderick, Taylor Rosenbaum
doaj   +1 more source

Visual pattern discrimination in cats after removal of the superior colliculi [PDF]

Psychonomic Science, 1971
Two groups of cats were trained to make a visual discrimination between two patterns in a standard discrimination apparatus. Animals in Group I were trained until they reached a criterion level of 90% correct responding, had bilateral lesions made in the superior colliculi (SC), and were retrained.
Kenneth V. Anderson, Marcus R. Williamson   +1 more
openaire   +1 more source

Prenatal VPA exposure and changes in sensory processing by the superior colliculus

Frontiers in Integrative Neuroscience, 2011
Disorders involving dysfunctional sensory processing are characterized by an inability to filter sensory information, particularly simultaneously arriving multimodal inputs. We examined the effects of prenatal exposure to valproic acid (VPA), a teratogen
Georgia eDendrinos, Marie eHemelt, Asaf eKeller   +2 more
doaj   +1 more source

Superior colliculi and tracer dynamics of Patient A.

, 2012
(A) Non-motion corrected image. (B) MAF corrected, (C) LORMC corrected PET images of Patient A, and (D) the corresponding MP-RAGE slice. The red arrows mark the superior colliculi. Uptake is visible only in the motion corrected PET images.
Jürgen Johann Scheins (121064), Lutz Tellmann (121072), Hans Herzog (121074), Abdullah Celik (121070), Tony Stöcker (121073), Elena Rota Kops (121068), Christoph Weirich (121067), Nadim Jon Shah (55356), Marcus Görge Ullisch (121061)   +8 more
core   +1 more source

RESGA. Revista de la Escuela Superior de Guerra Aérea. Año 2017. N°239 [PDF]

, 2017
La RESGA es una publicación de la Escuela Superior de Guerra Aérea, interdisciplinaria y de difusión pública. Es el resultado de trabajos de investigación seleccionados o reseñas bibliográficas relacionados, preferentemente con las siguientes temáticas ...
Escuela Superior de Guerra Aérea.
core   +1 more source

PEBP1 Regulates Ferroptosis in Acute Glaucoma: Targeted Therapy Using Engineered Exosomes

The FASEB Journal, Volume 40, Issue 17, 15 September 2026.
General schematic diagram of Spatial and Single‐Cell Transcriptomics Identifies PEBP1 as a Ferroptosis Mediator in Glaucoma: Targeted Intervention by Engineered Stem Cell Exosomes. ABSTRACT Glaucoma is the leading cause of irreversible blindness worldwide, primarily driven by the progressive loss of retinal ganglion cells (RGCs) under pathological high
Yijia Huang, Di Gong, Junhong Guo, Wei Huang, Tingyu Hu, Shengbin Tang, Li Li, Bingkai Feng, Kuanrong Dang, Simin Deng, Yong Liu, Chunyan Tan, Fei Yao, Jiantao Wang   +13 more
wiley   +1 more source

The segregation of Calb1, Calb2, and Prph neurons reveals distinct and mixed neuronal populations and projections to hair cells in the inner ear and central nuclei

Developmental Dynamics, Volume 255, Issue 9, Page 845-866, September 2026.
Three populations of hair cells have a distinct expression of Calb1 and Calb2. (A, A′D) The central is highly positive for Calb1 while surrounding HC are positive for Calb2. Later, a calyx forms primarily with Calb1. (B, B′, D′, D″) Saccule and utricle start out positive for Calb2 but will upregulate the Calb1 in the striola that is primarily forming ...
Jeong Han Lee, Ebenezer N. Yamoah, Jennifer Kersigo, Karen Elliott, Niya LaRoda, Gabriela Pavlinkova, Bernd Fritzsch   +6 more
wiley   +1 more source