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 8 of 8 for “"task acquisition"”.
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The Effects of Reinforcing Operant Variability on Task Acquisition
… the effect of variability contingencies on task acquisition for twelve 7-9 year old children. Subjects first learned to press a computer's shift keys with increasing response variation. Each subject was then exposed to one of three experimental conditions during which they received a point …
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The Effects of Two Types of Consequence Delivery on Task Acquisition.
… effects of two consequence delivery methods on task acquisition were evaluated within a multi-element design. A typical 3 year-old child and a 4 year-old child with autism participated in this study. The task for both children was to select a picture after the experimenter said its name. The …
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Developmental myelination and myelin plasticity during spatial working memory task acquisition
… and the question whether learning a new task will lead to new myelin formation in the brain regions upon which the task is dependent. To image myelin, I have applied several techniques, ranging from methods to make the tissue transparent and therefore aid myelin visualisation (RapiClear, …
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Speed of task acquisition in sign-tracker and goal-tracker rats using the 5-CSRTT
… attentionnelle (5-choice serial reaction time task, 5-CSRTT) afin d'évaluer, entre autres, la vitesse d'apprentissage, leur capacité attentionnelle et le niveau de motivation. Une différence significative (F (2,46) = 3.44, p=0.04) entre la vitesse d'apprentissage des trois groupes est notée. …
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Exploring lateralized sensorimotor processing using somatosensory evoked potentials
… the non-dominant limb following a novel tracing task. This was complimented by differential SEP peak amplitudes in the pathways that reflect cerebellar activation and sensorimotor integration. Additionally, the research also showed that when motor task acquisition occurs in the presence of …
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Learning from noisy data through robust feature selection, ensembles and simulation-based optimization
… scenarios makes machine learning a challenging task. Acquisition errors or missing values can lead to models that do not generalize well on new data. Under-fitting and over-fitting can occur because of feature redundancy in high-dimensional problems as well as data scarcity. In these contexts …
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The nature of habits in the nonhuman primate : the formation of sequences of eye movements and neural activity in the frontal eye field
… as habits in every day life. We designed a task that would test the limits of RL by providing a nearly infinite number of action choices and no clear association with reward. We recorded using ~100 chronically implanted independently moveable electrodes from the frontal eye fields (FEF), …
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Long-range synchrony between medial prefrontal cortex, thalamus and hippocampus underlies working memory behavior in mice.
… function, can be assessed in the mouse using a task of delayed alternation: the T-maze. In this thesis, I focus on spatial working memory behavior in the mouse and three brain regions that are implicated in this behavior: the medial prefrontal cortex (mPFC), the hippocampus (HPC) and the medial …