The subtlety of Part 2 is that our stabilized matrices can be simply multiplied together, thus forming a single layer, and therefore realizing The Universal Approximation Theorem of Cybenko and Hornik. In effect, the anatomy of the neural network will reveal how to open up the black box and ...
Anatomy of a linear neuron A neuron is the most granular unit in a neural network. Let's look at the second word of "neural network." A network is nothing but a set of vertices (also called nodes) whose edges are connected to each other. In the case of a neural network, neurons se...
In the training process of a neural network, conditions can arise where a small change in the bias and weight values may affect the output of the neural network in a drastic way. Ideally, this should not happen. A small change to either the bias or weight values should cause only a smal...
In medical imaging, there is a huge variety of possible imaging modalities and contrasts, where annotated data is usually very scarce. We present two approaches to deal with this challenge. A network pretrained in a different domain with abundant data is used as a feature extractor, while a ...
The idea that cognition and emotion are separable, antagonistic forces competing for dominance of mind has been hard to displace despite abundant evidence to the contrary. For instance, it is now known that a pathological absence of emotion leads to profound impairment of decision making. Behavioral...
The midbrain also contains a portion of the reticular formation, aneural networkthat is involved in arousal and alertness.Cranial nervesin the midbrain that stimulate themusclescontrolling eye movement,lensshape, andpupildiameter form the nuclear complex of the oculomotor nerve and the trochlear ...
We introduce a spiking neural network of the basal ganglia capable of learning stimulus–action associations. We model learning in the three major basal ganglia pathways, direct, indirect and hyperdirect, by spike time dependent learning and considering the amount of dopamine available (reward). More...
A Nógrádi,G Vrbová - 《Transplantation of Neural Tissue Into the Spinal Cord》 被引量: 14发表: 2006年 Changes in respiratory structure and function after traumatic cervical spinal cord injury: observations from spinal cord and brain Respiratory difficulties and mortality following severe cervical ...
Measurement of brain structures with artificial neural networks: two- and three-dimensional applications. To evaluate the ability of an artificial neural network (ANN) to identify brain structures. This ANN was applied to postprocessed magnetic resonance (MR) i... VA Magnotta,D Heckel,NC Andreasen...
Selective and divided attention during visual discriminations of shape, color, and speed: functional anatomy by positron emission tomography Positron emission tomography (PET) was used to identify the neural systems involved in discriminating the shape, color, and speed of a visual stimulus unde... ...