Browsing Aysel Sabuncu Brain Research Center (BAM) by Title
Now showing items 57-76 of 213
-
Effect of contiguity and figure-ground organization on the area rule of lightness
(Association for Research in Vision and Ophthalmology, 2014)In a simple two-dimensional (2D) display composed of two uniform surfaces with different luminances, the lightness of the darker surface varies as a function of its relative area while its luminance is held constant ... -
The effect of threat on cognitive biases and pain outcomes: an eye-tracking study
(John Wiley & Sons Ltd., 2016)Background: Theoretical accounts of attentional and interpretation biases in pain suggest that these biases are interrelated and are both influenced by perceived threat. A laboratory-based study was conducted to test whether ... -
Effects of caloric restriction on the antagonistic and integrative hallmarks of aging
(Elsevier, 2021)Aging is a significant risk factor for cognitive decline associated with neurodegenerative diseases, which makes understanding what promotes ‘healthy brain aging’ very important. Studies suggest that caloric restriction ... -
Effects of contrast polarity in paracontrast masking
(Springer New York, 2009)The visibility of a target stimulus can be suppressed (inhibition) or increased (facilitation) during paracontrast masking. Three processes have been proposed to be involved in paracontrast masking: brief inhibition, ... -
Effects of drive field parameters in magnetic particle imaging: A relaxometer study
(IEEE, 2018)In Magnetic Particle Imaging (MPI), it is possible to acquire signal from the nanoparticles via applying oscillating magnetic fields in the 1 kHz -150 kHz frequency range. Though 25 kHz is commonly used, there are not ... -
Effects of duty cycle on magnetostimulation thresholds in MPI
(Infinite Science Publishing, 2017)Magnetic Particle Imaging (MPI) relies on time-varying magnetic fields to generate an image of the spatial distribution of superparamagnetic iron oxide nanoparticles. However, these oscillating magnetic fields form electric ... -
Enhanced phase-sensitive SSFP reconstruction for fat-water separation in phased-array acquisitions
(John Wiley and Sons Inc., 2016)Purpose: To propose and assess a method to improve the reliability of phase-sensitive fat–water separation for phased-array balanced steady-state free precession (bSSFP) acquisitions. Phase-sensitive steady-state free ... -
Estimating the glossiness transfer function induced by illumination change and testing its transitivity
(Association for Research in Vision and Ophthalmology, 2010)The light reflected from a glossy surface depends on the reflectance properties of that surface as well as the flow of light in the scene, the light field. We asked four observers to compare the glossiness of pairs of ... -
Estrogen and aging affect synaptic distribution of phosphorylated LIM kinase (pLIMK) in CA1 region of female rat hippocampus
(Elsevier, 2008)17β-Estradiol (E) increases axospinous synapse density in the hippocampal CA1 region of young female rats, but not in aged rats. This may be linked to age-related alterations in signaling pathways activated by synaptic ... -
Evaluation of aqueductal stenosis by 3D sampling perfection with application-optimized contrasts using different flip angle evolutions sequence: preliminary results with 3T MR imaging
(American Society of Neuroradiology, 2012)BACKGROUND AND PURPOSE: Diagnosis of AS and periaqueductal abnormalities by routine MR imaging sequences is challenging for neuroradiologists. The aim of our study was to evaluate the utility of the 3D-SPACE sequence with ... -
Evaluation of hydrocephalus and other cerebrospinal fluid disorders with MRI: An update
(Springer, 2014)MRI is not only beneficial in the diagnosis of cerebrospinal fluid (CSF)-related diseases, but also aids in planning the management and post-surgery follow-up of the patients. With recent advances in MRI systems, there are ... -
Evaluation of spontaneous third ventriculostomy by three-dimensional sampling perfection with application-optimized contrasts using different flip-angle evolutions (3D-SPACE) sequence by 3 T MR imaging: preliminary results with variant flip-angle mode
(Elsevier, 2013)Purpose This prospective study aimed to evaluate the use of three-dimensional sampling perfection with application-optimized contrasts using different flip-angle evolutions (3D-SPACE) in the diagnosis of spontaneous third ... -
Evolutionary psychology: A how-to guide
(American Psychological Association Inc., 2017)Researchers in the social and behavioral sciences are increasingly using evolutionary insights to test novel hypotheses about human psychology. Because evolutionary perspectives are relatively new to psychology and most ... -
Examining the effects of audiovisual associations on motion perception through task-based fMRI
(Yerkure Tanitim ve Yayincilik Hizmetleri A.S., 2018)Examining the effects of audiovisual associations on motion perception through task-based fMRI Objective: Previous studies showed that associative learning can lead to drastic changes in perceptual experience and unexpected ... -
Experimental endoscopic cordotomy in the sheep model.
(Turkish Neurosurgical Society, 2016)AIm: Interventional pain therapies are usually based on destruction of the related pain-conducting pathways. Current procedures targeting pain have replaced conventional pain treatment modalities while being less invasive. ... -
Expression levels of SMAD specific E3 ubiquitin protein ligase 2 (Smurf2) and its interacting partners show region-specific alterations during brain aging
(Elsevier, 2020)Aging occurs due to a combination of several factors, such as telomere attrition, cellular senescence, and stem cell exhaustion. The telomere attrition-dependent cellular senescence is regulated by increased levels of SMAD ... -
Extracellular matrix mimetic peptide scaffolds for neural stem cell culture and differentiation
(Humana Press, 2014)Self-assembled peptide nanofibers form three-dimensional networks that are quite similar to fibrous extracellular matrix (ECM) in their physical structure. By incorporating short peptide sequences derived from ECM proteins, ... -
Fast calibration with compressed sensing using alternating direction method of multipliers in magnetic particle imaging
(IEEE, 2018)Magnetic Particle Imaging (MPI) is a new imaging modality that is used for imaging the spatial distribution of superparamagnetic iron oxide nanoparticles injected as tracers. Image reconstruction in MPI can be realized ... -
Fast system calibration with coded calibration scenes for magnetic particle imaging
(IEEE, 2019)Magnetic particle imaging (MPI) is a relatively new medical imaging modality, which detects the nonlinear response of magnetic nanoparticles (MNPs) that are exposed to external magnetic fields. The system matrix (SM) method ... -
Faz döngülü bSSFP görüntülemede T1 ve T2 haritalamaya parametre tahmini yaklaşımı
(IEEE, 2018)Faz döngülü dengeli kararlı-durum serbest devinim (bSSFP) sinyali eliptik sinyal modeline sahip olduğundan, T1 ve T2 relaksasyon zamanları tek bir faz döngülü bSSFP sekansından tahmin edilebilmektedir. Modelin parametreleri ...
