PSY 1101 Lecture Notes - One Unit, Waves, Supreme Headquarters Allied Powers Europe

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Rosalinde Klempan

Document Summary

Sensation: detection and encoding by sensory receptors of stimuli energies in environment (eg. Light energy, sound waves: encoded as neural signals. Perception: selecting organizing and interpreting sensations (higher level) Minimum stimulus magnitude that can be discriminated from no. Correct detection 50% of the time defines a. t. Study of relationships between stimulus energies and our. Proposes no one a. t but detection depends on expectations, Used to predict when we will detect faint stimulus. Minimm difference in stimulus magnitude between two stimuli. Jnd a constant minimum percentage not a constant amount. Larger the size of orginal stimulus , then sensory system less. Sensitivity to an unchanging stimulus diminishes (sensory receptor. Ability to transform light energy into sights. Process by which sensory systems transform stimulus energy into. Small portion of wavelengths: 400 to 700 nanometer. Opening controlled by iris (muscle adjusts to light level) Focuses incoming light rays by accomodation (changing shape) Contains receptor cells that convert energy into neural.