Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 14 of 14 for “"Pupil diameter"”.
-
Comparação da midríase medicamentosa obtida em pacientes diabéticos tipo 2 sem neuropatia e não-diabéticos
… of each drug was administered. In both groups, pupil diameter was measured after 40 minutes of eyedrops instillation. Results: Mean age for the diabetic group was 62.27 years (SD = 8.61 years) and for the non-diabetic group was 56.57 years (SD = 17.28 years). There was no significant difference …
-
Gaze behaviour and gait smoothness when navigating complex environments
… There were also no significant differences in pupil diameter means between trials with and without a dynamic obstacle (t(4)=1.032,p=0.180, d=-0.461). No significant differences of gait smoothness between trial conditions were found in the medio-lateral (t(6)=-0.492, p=0.320, d=-0.186), vertical …
-
The Effect of Once Daily Use of Brimonidine tartrate 0.15% solution on the Dark-adapted Pupil Size in Dark Brown Irides
… tartrate 0.15% solution on the dark-adapted pupil diameter with dark brown irides. METHODS: 25 normal volunteers without any medical past history or ocular pathology administered brimonidine tartrate 0.15% to their right eyes once daily for 3 weeks. Infrared pupil photographs were taken after …
-
Estimation of Time of Death (TOD) of White-Tailed Deer: a Comparison of Three Indicators
… are carcass temperature, rigor mortis, and pupil diameter. Variables which might affect these indicators, such as body size, ambient temperature, carcass handling methods, etc., were also examined. Measurements of these indicators were made on 1484 deer during the 1995-96 and 1996-97 hunting …
-
Survey of the Fishes and Habitat in the Upper Moreau River, Perkins County, South Dakota
… using external differences in their eye diameter, pupil diameter, and number and size of scale rows across the belly. A stepwise discriminant function analysis correctly classified 88% of the minnows using differences in the number of scale rows (81 %), pupil diameter (4%), nasal diameter …
-
Impact of Brain State On Visual and Prefrontal Population Coding In Behaving Animals
… with increased arousal, as indicated by pupil diameter. Second, we developed a system to record neuronal activity during locomotion in head-fixed animals, which enables precise interrogation of changes in visual processing during locomotion. We found that locomotion desynchronizes …
-
Exploring non-clinical inattention in adults: prevalence, and links to working memory and self-regulation.
… four further studies we used behavioural and pupillometry measures to investigate the cognitive underpinnings of inattention with a view to differentiating it from hyperactivity and impulsivity. Research suggests a role for executive functions (EFs) and self-regulatory processes in ADHD, …
-
Development of an automated alignment system for the Magdalena Ridge Observatory Interferometer
… grow to include ten relocatable 1.4 metre diameter unit telescopes with baselines up to 347 metres. The optical beam trains will deliver light from the telescopes over hundreds of metres in vacuum pipes to a central beam combining laboratory that houses the fringe tracker and science …
-
Experiential and Neurobiological Influences on Economic Preferences and Risky Decision Making
… model to capture regret, we examine changes in pupil diameter of participants performing a sequential investing task. By manipulating task uncertainty, we show that pupil dilation is positively correlated with both asset price variance and regret. In addition, pupil linked arousal is positively …
-
Influence of ocular monochromatic aberrations in the development and/or progression of myopia
… off-axis aberrations of cyclopleged eyes (5 mm pupil diameter) of 646 children were measured during 2004-2005 (age, 12.7 ± 0.4 years) and 5 years later in 2009-2010 (age, 17.1 ± 0.5 years). Change in spherical equivalent (M) from baseline to follow-up visit was determined and eyes characterised …
-
Influence of Light Exposure on the Melanopsin Driven Pupil Response and Circadian Rhythm
… light, with pathways to the midbrain to control pupil size and circadian rhythm. Evidence suggests that light exposure plays a role in refractive error development. This study sought to investigate whether melatonin level and sleep quality can be modulated by decreasing nighttime input to the …
-
A Window Into Autonomic Nervous System Functioning in Autism: Pupillometry in Adults on the Autism Spectrum
… negative physical and psychological outcomes. Pupil responsivity is controlled by the autonomic nervous system and has been show to index activity of the locus coeruleus-norepinephrine (LC-NE) pathway of innervation. Dysregulation of that pathway has been proposed to relate to differences in …
-
Biomechanical characterization and computational modeling of the anterior eye
… stroma, the sphincter iridis, and the dilator pupillae. To quantify the relative stiffness of different sections of the iris, mechanical indentation tests and histological analysis in combination with a three- dimensional finite element (FE) simulation were performed. The iris was divided into …
-
Evaluation of an Objective Visual Image Quality-Based Method to Identify Spectacle Corrections for Individuals with Keratoconus
… in the presence of a dynamically changing pupil diameter, which would naturally occur under real world lighting conditions. Results were compared to values measured on 100 typical eyes recorded as part of the TINCO study for comparison to a control group. The goal of this second phase of …