 A neuroscientific explanation of consciousness adduces properties of the brain, typically the brain’s electrical properties. A salient phenomenon is neural signaling through action potentials or spikes. A spike is a large change in electrical potential across a neuron’s cellular membrane which can be transmitted between neurons that form a neural circuit. For a sensory neuron, the spikes it generates are tied to its receptive field. For example, in a visual neuron, its receptive field is understood in spatial terms and corresponds to that area of external space where an appropriate stimulus triggers the neuron to spike. Given this correlation between stimulus and spikes, the latter carries information about the former. Information processing in sensory systems involves processing of information regarding stimuli within receptive fields.