Perception — Sensation And

Diminished sensitivity as a consequence of constant stimulation (e.g., stopping noticing the smell of a room after being in it for ten minutes).

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

Distinguishing an object (the figure) from its surroundings (the ground). Similarity: Grouping similar items together. Proximity: Grouping items that are close to each other. Sensation and Perception

Absolute Threshold: The minimum intensity needed to detect a stimulus 50% of the time.

Using prior knowledge, experiences, and expectations to interpret sensory info (concept-driven). 3. Principles of Organization Similarity: Grouping similar items together

Difference Threshold (Just Noticeable Difference): The minimum change in a stimulus required for a person to detect that a change has occurred. Perception: The Interpretation

The environment or surrounding stimuli can change how we perceive an object (e.g., a tall person looks average next to a professional basketball player). 5. Conclusion identifies several laws of grouping:

The human brain does not see things in isolation; it looks for patterns. identifies several laws of grouping: