Activation refers to the process of awakening or stimulating our senses, leading to an awareness and consciousness of external stimuli.
Sensation: Sensation is the process by which our sensory receptors detect and respond to external stimuli.
Perception: Perception is the mental process of organizing and interpreting sensory information received from our environment.
Threshold: Threshold refers to the minimum level of stimulus intensity required for a person to detect a particular sensation.
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