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 4 of 4 for “"cortico-striatal circuits"”.
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Structural and functional brain plasticity for statistical learning
… we know surprisingly little about the brain circuits and how they change when learning temporal regularities. In my thesis, I combine behavioural measurements, Diffusion Tensor Imaging (DTI) and resting-state fMRI (rs-fMRI) to investigate the structural and functional circuits that are …
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The role of frontal cortical-basal ganglia circuits in simple and sequential visuomotor learning
… striatum and sham surgery. Rats with ventral striatal lesions were unimpaired on any visuomotor task demonstrating shorter RTs than controls on most measures. Dorsomedial striatal lesions significantly impaired all VSRT performance measures. Striatal lesions had no effect on short or long-term …
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Neural and psychological mediators of trait impulsivity: cortico-striatal circuitry and catecholaminergic neuromodulation
… refine our understanding of the precise neural circuits involved in the execution of a premature response? 4) How does impulsivity and attention on the 5CSRTT compare with performance on other tasks of sustained attention? Are there any shared neural processes? To investigate these questions, I …
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Neural and neurochemical mechanisms of sustained visual attention
This thesis investigates the neural basis of attentional control, in the rat, especially in terms of the role of the midbrain dopaminergic systems using behavioural, pharmacological, neuroimaging and neurochemical methods. A visual discrimination task was developed for measuring sustained …