What are the two levels of sensory threshold?

The correct answer identifies the two levels of sensory thresholds as absolute sensory and differential sensory thresholds.

Absolute sensory threshold refers to the minimum level of stimulus intensity that an individual can detect 50% of the time. For example, it is the faintest sound a person can hear or the least amount of light that can be perceived. This threshold establishes a baseline for sensory perception.

Differential sensory threshold, often known as the just noticeable difference (JND), is the smallest change in stimulus intensity that can be detected. This threshold is important because it encompasses how we perceive changes in stimuli rather than just the presence of stimuli. For instance, it's the minimum amount of change in weight that can be noticed when lifting a load.

Together, these thresholds help in understanding how consumers perceive different stimuli related to products and marketing messages, influencing their decisions and behaviors.