Report: Sensation and Perception 1. Introduction Sensation and perception are the two fundamental processes that allow us to experience the world. While often used interchangeably, they represent distinct stages of processing environmental stimuli. 2. Defining the Core Concepts Sensation: The Input
The human brain does not see things in isolation; it looks for patterns. identifies several laws of grouping:
Sensation is the physical process of collecting data from the environment. Sensory receptors (in the eyes, ears, nose, tongue, and skin) detect physical energy—such as light waves or sound vibrations—and convert it into neural signals. Sensation and Perception
Using prior knowledge, experiences, and expectations to interpret sensory info (concept-driven). 3. Principles of Organization
Filling in gaps to create a complete, whole object. 4. Influencing Factors Perception is subjective and can be influenced by: Report: Sensation and Perception 1
The critical step where physical energy is transformed into electrical impulses the brain can understand. Thresholds:
Distinguishing an object (the figure) from its surroundings (the ground). Similarity: Grouping similar items together. Proximity: Grouping items that are close to each other. Sensory receptors (in the eyes, ears, nose, tongue,
Absolute Threshold: The minimum intensity needed to detect a stimulus 50% of the time.