briefly Explain the difference between absolute threshold and difference threshold
The absolute threshold refers to the minimum intensity or quantity of a stimulus that can be detected by a person. It represents the level at which a person can just barely perceive the presence of a stimulus. For example, it might be the minimum sound volume at which a person can hear a soft whisper.
On the other hand, the difference threshold (also known as the just noticeable difference) is the smallest detectable difference between two stimuli. It refers to the minimum change in a stimulus necessary for a person to notice that a difference has occurred. For instance, it might be the minimum increase in volume required for a person to perceive that the sound has gotten louder.
In essence, the absolute threshold refers to the minimum level of a stimulus needed for detection, while the difference threshold focuses on the minimum amount of change needed for a person to perceive that a change has occurred.