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.
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Showing 1 to 20 of 86 for “"sensory systems"”.
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Ontogeny of Prepulse Inhibition Across Sensory Systems
… the published papers are limited to testing one sensory system at one age. The present study is a continuation of our research assessing whether PPI response curves differ as a modality of the prepulse as well as the maturation of such curves across early development. In the present study, we …
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Analog VLSI circuits for inertial sensory systems
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Evaluating Machine Learning Models of Sensory Systems
We rely on our sensory systems to perceive and interact with the world, and understanding how these systems work is a central focus in neuroscience. A goal of our field is to build stimulus-computable models of sensory systems that reproduce brain responses and behavior. The past decade has given …
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Genetic Intervention in Sensory Systems of a Fly
Die vorliegende Arbeit vergleicht Transgene, die in Drosophila Neuronen exprimiert wurden, um diese abzutöten oder zu blockieren. Tetanus Neurotoxin erwies sich als sehr effizient, um chemische Synapsen zu blockieren. Synapsen, die aus einer chemischen und einer elektrischen Komponente bestehen, …
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Energy and Data Conversion Circuits for Low Power Sensory Systems
… if they are going to be used to power up any sensory circuit or recharge a battery. We propose a switched-inductor DC-DC converter to boost the low voltage of the photodiodes to higher voltages. The proposed circuit uses two onchip switches and two off-chip components: an inductor and a …
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Environmentally Influenced Duplication Patterns Followed by Functional Shifts Fueling the Evolution of Metazoan Sensory Systems
… some of the methods by which animals use their sensory systems to interact with their environment have been extensively studied. How gene duplications have played an important role in sensory evolution by duplication followed by functional shifts resulting in neofunctionalisation has been …
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Mechanisms of Movement-Related Changes in Auditory Detection
<p>To successfully navigate the world, our sensory systems must process stimuli accurately during both rest and movement. Indeed, movements have been shown to modulate sensory systems at different levels. In audition, studies in humans and other animals have shown that movements strongly suppress …
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Effects of Neck Muscle Fatigue on the Vestibulo-Ocular Reflex
… brain receives and processes input from multiple sensory systems including the visual, vestibular, and somatosensory systems. The information from these systems is sent to the brain where the information is then combined, organized and interpreted. This results in the output of reflexes …
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Feedforward and Feedback Signals in the Olfactory System
… conglomeration of myriad activities in neural systems often results in prominent oscillations. The primary goal of the research presented in this thesis was to study effects of sensory stimulus on the olfactory system of rats, focusing on the olfactory bulb (OB) and the anterior piriform cortex …
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Supramolecular assemblies of conjugated sensory polymers and the optimization of transport properties
(cont.) The vectorial energy transfer design of sensory films to harvest and direct energy to the surface detection layer toward ultimate signal amplification has been discussed. Third, the role of chemical structure of a sensory polymer in the selectivity of a conjugated polymer-based fluorescent …
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The Use of Sensory Integrative Tool in a Third Grade Classroom and How it Affects Student Posture
<p>Sensory integration is the organization of sensory input for use. Sensory input are streams of neural impulses flowing from the sense receptors in the body to the spinal cord and brain. Sensory integrative tools were designed to help stimulate certain sensory systems that tend to organize the …
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Activity-Dependent Plasticity in the Murine Olfactory Bulb Neurons
… and homeostasis of the neural circuit. In sensory systems, adaptive neuronal plasticity is recruited to combat dynamic changes in sensory input – such as its sudden loss - and maintain circuit homeostasis. Adaptive neuronal plasticity can be induced and expressed at different cellular …
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Investigation of two-component signaling systems in Pseudomonas aeruginosa and their roles in the mucus barrier
… which this occurs is via two-component signaling systems, which are typically comprised of a membrane-bound histidine kinase that senses external cues signals, and a cognate cytoplasmic response regulator that triggers changes in gene expression. The importance of these systems is highlighted by …
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Inner ear morphology in elasmobranchs: implications for auditory capacity and ecology
… system is part of the impressive array of sensory systems they possess. However, relatively little is known about the elasmobranch auditory system and its importance compared to other sensory systems within and across species, despite the fact that underwater sound can convey important …
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Decoding Gating Properties of the Pannexin1 Channel: ATP Release and pH Sensitivity and the Potential Role in Health and Disease
… processes including learning, memory and sensory function. In sensory systems, ATP release and purinergic signaling is considered the most important function of Panx1. Here, the function in the olfactory epithelium was investigated using Panx1 knock out mice. Functional analysis in vivo …
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Multisensory integration in weakly electric fish
Animals integrate information from across sensory systems, such as vision and hearing, to improve perception. To understand how neural circuits in the central nervous system integrate information from different senses, the responses of midbrain neurons to two categories of electrosensory stimuli in …
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Quantitative sensory testing for evaluation chronic arthritis or local anesthesia
Background: Properly functioning sensory systems are crucial in perception of external stimuli. Different modalities such as touch, temperature, and pain can only be appreciated with intact sensory pathways from the peripheral receptors to the cerebral cortex via the spinal cord. Pain is a sensory …
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The effect of rhythm and melody on language development and sensory organization in children with autism
… may facilitate language skill development and sensory organization for children with autism. This project inquired whether rhythmic speech or melody during free-play and intervention sessions could help increase language production and organize sensory systems, displayed by Restricted, …
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Visualizing models driven by real-time, sensor-based data : a new way to experience the inner workings of ecosystems
… for people to experience the inner working of ecosystems by using augmented or virtual reality to explore unseen ecological processes. EcoFlux builds on the existing MIT Media Lab project DoppelMarsh, which is a virtual landscape that changes in response to realtime environmental conditions …
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