1. Contrast of Sensation
The phenomenon where different types of stimuli applied to the same receptor cause changes in sensitivity.
The phenomenon of visual contrast includes brightness contrast and color contrast. Other senses also have contrast phenomena.
Contrast formed by two stimuli acting simultaneously is called simultaneous contrast; contrast formed by two stimuli acting successively is called successive contrast.
2. Sensory Adaptation
The phenomenon where sensitivity changes under continuous stimulation. Visual adaptation includes light adaptation and dark adaptation.
3. Interaction of Sensation
The mutual influence and interaction between different sensory receptors. Synesthesia is one of them, which refers to the phenomenon where a stimulus not only causes one sensation but also another sensation.
4. Sensory Compensation
The phenomenon where the enhanced sensitivity of other senses compensates for the loss of a certain sensation. Different senses can compensate for each other because under certain conditions, different forms of energy in various sensory channels can be converted into each other.