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 17 of 17 for “"Insular cortex"”.
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Taste Learning in Insular Cortex: Plasticity Is Influenced by Experience Type
<p>The gustatory cortex (GC) has long been studied as the main cortical area encoding taste stimuli and likely integrates sensory, visceral, and emotional information to guide taste-related behaviors. However, our understanding of cortical taste coding on a single-cell level has only become clear …
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The Functional Role of the Anterior Insular Cortex in Cognitive Control
… cognitive control network, and the anterior insular cortex (AIC) serves as one of its key structures. However, the functional role of the AIC in cognitive control has not been fully understood. A human lesion study was conducted to examine the necessary function of the AIC in cognitive …
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Central Neural Cardiorespiratory Areas in Exercise
… of activation in the brain. In study three, insular cortex has been associated with cardiovascular function during exercise. The response of insular cortex neurons to muscular contractions and their discharge characteristics were studied using spike-triggered averaging techniques. The …
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Exploring the brain mechanisms of breathlessness through the study of neurological patients
… (c) patients with low-grade glioma affecting the insular cortex. Results: Group a (n=16): Thalamic DBS produced significant relief of steady-state AH (p=0.002) with a mean±sd reduction of -14.4±15.5% on a visual analogue scale (VAS), exceeding the minimal clinically important difference of 10% for …
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The effect of neurosurgical intervention and neurological damage on the perception of dyspnoea
… form of Parkinson’s disease, and glioma of the insular cortex alters the perception of breathlessness. Methods: (i) Experimental air hunger was induced in participants with deep brain stimulation of the motor thalamus to assess whether perception of dyspnoea is changed when stimulation is turned …
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Characterisation of the role of peripheral μ-opioid receptors in the behavioural effects of heroin and their underlying neural systems in the rat
… the central nervous system which depends on the insular cortex, is involved in opioid use disorder either as a predictor or the outcome of opioid abuse. Yet the role of peripheral opioidergic mechanisms in the behavioural effects of heroin and its addictive properties remains unclear. Similarly, …
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Hyperglycaemia, insulin and acute ischaemic stroke
… stress hyperglycaemia. The association between insular cortex involvement and hyperglycaemia was determined by analysing MRI data sets from two randomised trials. Stroke unit practice for the management of glucose was assessed in a review of the stroke unit trialists’ collaboration data set. …
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Global and regional central nervous system sequelae of anti-neutrophil cytoplasmic antibody-associated vasculitis
… was evidence of regional differences in the insular cortex and temporal lobe. Additionally, on radiologist review, AAV survivors had a higher odds of while matter hyperintensities compared with control subjects. AAV survivors also had measurable deficits in episodic memory and response …
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The Neural Correlates of Allocentric Spatial Memory in Schizotypy
… superior temporal gyrus and anterior prefrontal cortex, in line with previous literature. Functional MRI revealed decreased activation of the right hippocampus during memory encoding and increased activation of the hippocampus bilaterally during memory retrieval in high schizotypy compared to …
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Neurochemical Changes Following Stroke: Role In Neuroprotection And Cardiac Susceptibility
… for TH and neuropeptide Y (NPY) increased in the insular cortex (IC) within the peri-infarct zone. NPY also increased ipsilaterally in the basolateral nucleus of the amygdala, whereas leucine-enkephalin, dynorphin and neurotensin increased ipsilaterally in the central nucleus of the amygdala. Sham …
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MEG coherence imaging in dyslexia: Activation of working memory pathways
… showed lower normalized amplitudes in the right insular cortex and right superior temporal gyrus and higher, likely compensatory, activation in the right fusiform gyrus, left parahippocampal gyrus, and left precentral gyrus. Dyslexics performing a SWM task showed significantly reduced MEG …
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The role of the catecholaminergic projections to the forebrain in the modulation of autonomic responses to stress
… The regions tested included the medial frontal cortex (MFC), agranular insular cortex (AIC), nucleus accumbens (NAC) and the central nucleus of the amygdala (CeA). Injections of an antagonist of Ý-adrenoceptors into each of these regions reduced the magnitude of the increase in HR induced by …
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Investigating reinforcement learning processes in depression and substance use disorder: translational, computational and neuroimaging approaches.
… from the amygdala to the anterior cingulate cortex, infralimbic cortex and insular cortex compared to males. The subsequent chapter uses a computational approach to investigate latent vulnerability variables in cocaine addiction. A longitudinal dataset acquired in rats was analysed, which …
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Roles of orbitofrontal and insular cortices in processing reward variables
… rats and to test the role of the orbitofrontal cortex (OFC) in this process. Rats were trained in a novel intertemporal choice task in which the sequence of delay durations was randomized across trials. The animals tended to choose a small immediate reward more frequently as the delay for a …
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Predicting trajectories of symptom change during and following treatment in adolescents with Unipolar Major Depression.
… anterior cingulate, dorsolateral prefrontal cortex, orbitofrontal cortex, and insular cortex). Chapter 4 focused on another subsample of patients: 166 of the 465 with salivary basal cortisol data at both waking and evening. Logistic regressions were used in Chapters 2-4 to investigate whether …
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Sensorimotor experience in virtual environments
… with a first person avatar of hands recruited insular cortex activation over time, which might indicate that this activation has been associated with a sense of agency. Sensory augmentation in virtual environments modulated activations of important brain regions associated with action …
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Strategies to Identify Therapeutic Opportunities in the Treatment of Addictive Disorders
Addictive disorders are a collection of maladaptive behaviors characterized by the uncontrolled use of a rewarding substance. These include substance use disorders, binge eating disorder, certain subtypes of obesity, gambling disorder, and internet gaming disorder. Each of these disorders share …