PSY 102 Chapter Notes - Chapter 4: Detection Theory, Psychophysics, Psy

• School: Ryerson University
• Department: Psychology
• Course: PSY 102
• Professor: Meagan Mackenzie

Document Summary

Your brain perceived a complete pattern even though some of it was missing. Psy 102 chapter 4 sensation and perception. Sensation: our senses as detectives their physical characteristics: transduction the first step in sensation is converting external energies or substances into a language the nervous system understands. Transduction is the process by which the nervous system converts and external stimulus into electrical signals within neurons. A specific type of sense receptor, or specialized cell transduces a specific stimulus. first detect a stimulus. Just noticeable difference the jnd is the smallest change in the intensity: weber"s law states that there"s a constant proportional relationship of a stimulus that we can detect. Absolute thresholds demonstrate how remarkably sensitive our sensory systems are. between the jnd and the original stimulus intensity. The role of attention or at last turn down their volume. Inattentional blindness we"re surprisingly poor at detecting stimuli in: change blindness failure to detect obvious changes in one"s environment. information passes.