What is the primary implication of Weber's law regarding changes in stimulus?

What is the primary implication of Weber's law regarding changes in stimulus?

• A. They are noticeable at any level
• B. They must be a specific quantity
• C. They vary with the original stimulus
• D. They always exist

Answer: (C)

Weber's law states that the just noticeable difference (JND) between two stimuli is a constant ratio of the original stimulus. This means that the ability to detect a difference in stimulus intensity relies on the proportionate change relative to the original stimulus rather than the absolute change. For instance, if you can only notice a slight increase in brightness on a dim light compared to a bright one, the noticeable change (the JND) varies depending on how intense the original stimulus is. Therefore, the primary implication of Weber's law is that changes in stimulus must vary with the original stimulus, indicating that our perception of change is not absolute but rather relative to what we are experiencing.

Weber's law states that the just noticeable difference (JND) between two stimuli is a constant ratio of the original stimulus. This means that the ability to detect a difference in stimulus intensity relies on the proportionate change relative to the original stimulus rather than the absolute change. For instance, if you can only notice a slight increase in brightness on a dim light compared to a bright one, the noticeable change (the JND) varies depending on how intense the original stimulus is. Therefore, the primary implication of Weber's law is that changes in stimulus must vary with the original stimulus, indicating that our perception of change is not absolute but rather relative to what we are experiencing.