AP PSYCHOLOGY

Detailed explanation-1: -Weber’s law, also called Weber-Fechner law, historically important psychological law quantifying the perception of change in a given stimulus. The law states that the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus.

Detailed explanation-2: -Weber’s law: the principle that, to be perceived as different, two stimuli must differ by a constant percentage (rather than a constant amount). Sensory adaptation: diminished sensitivity as a consequence of constant stimulation.

Detailed explanation-3: -According to Weber’s law, a fundamental principle of perception, sensitivity to changes in magnitude along a given physical dimension decreases when stimulus magnitude increases.

Detailed explanation-4: -Weber’s Law states that rather than a constant, absolute amount of change, there must be a constant percentage change for two stimuli to be perceived as different. In other words, the higher the intensity of a stimulus, the more it will need to change so we can notice a difference.

Detailed explanation-5: -Weight perception Weber found that the just noticeable difference (JND) between two weights was approximately proportional to the weights. Thus, if the weight of 105 g can (only just) be distinguished from that of 100 g, the JND (or differential threshold) is 5 g.