Disney California Adventure. Disney California Adventure Park, commonly referred to as Disney California Adventure, California Adventure, or DCA, is a theme park located in Anaheim, California. It is owned and operated by The Walt Disney Company through its Parks and Resorts division.
The stimulus energy must occur within the receptor's receptive field. The stimulus energy must match the specificity of the receptor. A generator potential in the associated sensory neuron must reach threshold. The stimulus energy must be converted into the energy of a graded potential. called a transduction potential.
A nerve impulse begins when an individual neuron receives a stimulus that enables the action potential threshold to be reached (around -50mv). The stimulus is specific for the neural receptor. In other words, a light receptor is stimulated by a particular quantity of light energy.