Weber\'s Law describes how much a stimulus\' physical intensity must change to b

Question

Weber's Law describes how much a stimulus' physical intensity must change to be perceived as a change. The amount of change is a the intesity and is of to each stimulus. Light is a dualistic form of energy (i.e., it has two major characteristics) and can be described in terms of wavelength or as consisting of a stream of The wavelength of light starts our perception of the of what we see When light strikes a light-colored surface (as opposed to a dark surface), most of the light will probably be In the visual system, the process of transduction in the rods involves light causing the membrane potential of these photoreceptors to This process begins with a chemical reaction that starts with a molecule reacting to light. vision is low sensitivity vision and relies on photoreceptors called which are concentrated in the of the retina

Explanation / Answer

Ernst Weber carried out an experiment on how sensation is perceived. Weber's law describes how much a stimulus' physical intensity must be changed to be perceived as a change. The amount of change is a noticeable variation in sensory experience of the intensity and is just noticeable difference (or difference threshold) to each stimulus. In Weber's experiment he used a psychophysical measure called the method of constant stimuli. The participants in his experiment were exposed to sound. In each trial the sound was amped up or increased. In the beginning of the experiment, it was easy for a participant to discriminate the increasing loud sound from the previous trial. However, as the trials increased and the sound got louder, the participant could not judge the difference between trials of loud to louder sounds. Thus, he concluded how much a stimulus' physical intensity must be changed to be perceived as a change.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.