Sensation and Weber’s Law
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Psychology I: Foundations
Summary
This content delves into the intricacies of sensation and perception, highlighting the differences between these two processes, and explores the principles of sensory adaptation, sensitization, and the Weber-Fechner laws as they relate to sensory processing.
- Sensation is the stimulation of sensory receptors resulting in neural impulses, while perception involves the brain's interpretation of these sensory inputs.
- Sensory adaptation (or habituation) refers to the diminishing perception of a stimulus over time, whereas sensitization is the increased sensitivity to a stimulus, often due to trauma or strong emotional experiences.
- The Absolute Detection Threshold is the minimum intensity at which a stimulus is detectable by an individual, varying across different senses.
- Weber's Law describes a ratio relationship between the initial intensity of a stimulus and the threshold at which a change in intensity is perceivable, known as the Just Noticeable Difference.
- The principles of sensory processing and the Just Noticeable Difference have significant applications in fields such as marketing and consumer behavior.
Chapters
00:19
Sensation vs. Perception
00:59
Sensory Adaptation and Sensitization
05:07
Weber's Law and Just Noticeable Difference
10:00
Applications of Sensory Processing Theories