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 24 for “"Sensory deprivation"”.
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THE EFFECT OF EARLY SENSORY DEPRIVATION ON THE TEMPORAL PROFILE OF MULTISENSORY INTEGRATION
… is capable of integrating inputs from different sensory modalities to aid the perception of external events, providing behavioral advantages including quicker reaction time and higher accuracy of response. Highly implicated in such functionalities is the mammalian midbrain structure superior …
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Cardiac slowing as a function of biofeedback and sensory deprivation or biofeedback alone
<p>Boucharq and Corson (1976) found that subjects required to lower heart rate to avoid the loss of money used the strategy of attending to meaningless stimulation twice as often as subjects required to lower heart rates to obtain money, and that subjects decreasing heart rate to avoid the loss of …
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The Role of Perineuronal Nets in Regulating Barrel Cortex Physiology
… expression is highly attenuated following sensory deprivation, or pharmacological silencing of neuronal activity. Thus, PNNs contribute to the activity dependent regulation of plasticity in the brain. Although PNNs are relatively ubiquitous in the neocortex, little is known about the degree …
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Effects of Whisker-Trimming on GABAA Receptors in S1 Cortex
A number of studies have shown that sensory deprivation is associated with selective decreases in GABA, GAD, and GABA receptors, in deprived areas of visual and somatosensory cortex. Those studies focused on layer 4, a recipient of direct thalamocortical sensory input. However, supragranular layers …
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Long-Term Consequences of Early Eye Enucleation on Audiovisual Processing
A growing body of research shows that complete deprivation of the visual system from the loss of both eyes early in life results in changes in the remaining senses. Is the adaptive plasticity observed in the remaining intact senses also found in response to partial sensory deprivation specifically, …
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Virtual Visitation: Promoting Social Occupations in Dementia Care
… social opportunities, which can contribute to sensory deprivation in this population and result in lower quality of life (Haigh & Mytton, 2015; Nakamae et al., 2014). COVID-19 visitation restrictions, as well as ongoing barriers of geographical distance, present additional challenges when …
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The effects of high and low stimulation on visual attention and preference for novelty in infants
… in animals and infants as well as studies of sensory deprivation, the following hypotheses were proposed: 1) Infants will attend more to visual stimuli following a period of low stimulation than following a period of high stimulation. 2) Infants will attend more to a novel stimulus than a …
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Experience-Dependent and Input-Specific Regulation of Neocortical Circuit Development by Genes Linked to Neurodevelopmental Disorders
… largely unknown. Furthermore, environmental sensory experience can determine or significantly remodel the postnatal development of synaptic connections and neural circuits in sensory cortices. Knowledge on what intracellular proteins or mechanisms can mediate experience-dependent development …
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The effect of age at which enrichment is commenced on the test performance of the white rat
… enrichment could reduce the effects of early sensory deprivation on the behaviour of the animal. This thesis investigates whether animals show equal effects of enrichment after longer periods of deprivation. or whether the effects of deprivation are irreversible. The thesis also investigates …
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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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Off the Orbit: Works of Art for Long-Term Space Travellers. Outline of a novel artistic practice
… of origin. In addition, the consequences of sensory deprivation caused by the high-tech indoor habitat, the emptiness of outer space, the effects of social monotony and limited contact with home will dominate their life in the extreme environment and the emotional state of the future …
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The role of fast-spiking interneurons in cortical map plasticity
Rodents have a topographic map in primary somatosensory cortex of the contralateral facial whiskers. A brief period of whisker trimming causes the representation of the nontrimmed whiskers (spared) to expand into the cortex that has lost its principal sensory input (deprived). It has been …
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Design and representation in landscape architecture: Imagining place ; A thesis submitted in partial fulfilment of the requirements for the Degree of Master of Landscape Architecture at Lincoln University
… lifestyles of city dwellers contribute to sensory deprivation, and experiences are dominated by the visual sense when they visit places like national parks. Visitors’ journeys produce both collective moments and ephemeral experiences, and the presence of place through design reshapes and …
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Characterisation of new regulators and neural plasticity of the O2-sensing circuit in Caenorhabditis elegans
Oxygen is the main sensory stimulus that promotes aggregation and elicits O2- escape behaviour in C. elegans. It also constitutes a salient cue for this nematode that reprograms its behavioural strategies as well as physiology after prolonged oxygen experience. However, it is not known how other …
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The Role of MEF2 Transcription Factors in Neocortical Circuit and Synapse Development In Vivo
… 3 (L2/3) of the postnatal mouse primary somatosensory "barrel" cortex in vivo. Simultaneous deletion of Mef2a and Mef2d modestly decreases spontaneous glutamatergic synaptic transmission in comparison to neighboring control L2/3 neurons. MEF2C, however, cell-autonomously mediates several unique …
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Machine-Learning-Based Approach to Decoding Physiological and Neural Signals
… who are floating in body-temperature water in a sensory-deprivation-tank float pod. We compared lying in the float pod versus lying in bed (a control condition). And we found differences between the two, especially in the gamma band. More research is required to understand what these findings …
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Requirement for AMPA receptor endocytosis and long-term depression in ocular dominance plasticity
… (OD) shift in visual cortex following monocular deprivation (MD). As in other mammals with binocular vision, MD in mice induces bidirectional plasticity: rapid weakening of responses evoked through the deprived eye is followed by delayed strengthening of open-eye responses. It has been proposed …
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Non-invasive tuning of experience-dependent plasticity in the primary visual cortex
… circuits. During the CP, short-term monocular deprivation (MD) induces both functional and anatomical changes in binocular V1, characterized by a weakening of deprived-eye responsiveness via mechanisms of synaptic long-term depression. As the critical period closes, increased inhibitory drive …
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Localization and Function Of RNA Interference in the Cerebral Cortex
… neurotrophic gene expression in the mouse somatosensory cortex to determine if these trophic factors are essential for cortical remodeling after sensory deprivation. We blocked gene expression in vivo using a non-replicative adeno-associated virus bearing genes encoding shRNA constructs. The …
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