Disorders of Brain, Behavior, and Cognition: The Neurocomputational Perspective

I. Memory Disorders. Neuromodulation and the hippocampus: memory function and dysfunction in a network simulation. Cholinergic neuromodulation and alzheimer's disease. Episodic memory in semantic dementia: a computational approach based on the tracelink model. Multimodular networks and semantic memory impairments. II. Neuropsychology. Understanding failures of learning: hebbian learning, competition for representational space, and some preliminary experimental data. Frames of reference in hemineglect: a computational approach. Explaining object-based deficits in unilateral neglect without object based frames of reference. Inter-hemispheric competition of sub-cortical structures is a crucial mechanism in paradoxical lesion effects and spatial neglect. A new model of letter string encoding: simulating right neglect dyslexia. Prosopagnosia in modular neural network models. Functional brain imaging and modeling of brain disorders. III. Neurology. Unmasking unmasked: neural dynamics following stroke. Effects of callosal lesions in a computational model of single-word reading. Penumbral tissue damage following acute stroke: a computational investigation. The gating functions of the basal ganglia in movement control. Motor fluctuations in parkinson's disease: a postsynaptic mechanism derived from a striatal model. Thalamic and thalamocortical mechanisms underlying 3 hz spike-and-wave discharges. IV. Psychiatry. Using a speech perception neural network simulation to explore normal neurodevelopment and hallucinated "voices" in schizophrenia. Dopamine, cognitive control, and schizophrenia: the gating model. Modeling prefrontal cortex delay cells: the role of dopamine in Schizophrenia. Neural models of normal and abnormal behaviour: what do schizophrenia, parkinsonism, attention deficit disorder, and depression have in common?. A neural network model of attention biases in depression.