The critical step where physical energy is transformed into electrical impulses the brain can understand. Thresholds:

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

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

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.

Starting with the individual pieces of sensory info and building up to a final image (data-driven).