PSY 105 Chapter Notes - Chapter 4: Sclera, Electromagnetic Spectrum, Wavelength

• School: Ryerson University
• Department: Psychology
• Course: PSY 105
• Professor: Tsasha Awong

Document Summary

Photoreceptor, pressure, waves, chemical molecules, mecanoreceptors, thermal receptors: perception: information. Process by which the brain organizes and interprets sensory: sensory problems (e. g. ,cataracts, perceptual problems (e. g. , phantom limb pain, prosopagnosia) Psychophysics : relation between the physical nature of stimuli and the sensory reactions in response to those stimuli. Tries to create a bridge between the exterior physical environment and the internal psychological world. Sensory detection : difference threshold fixed. It"s proportional to the initial stimulus value: weber"s law proportion of the intensity of the initial stimulus. : law that states that the just noticeable difference is a consistent. : threshold: the minimal intensity needed to just barley detect stimulus e. g. two lights --8% Signal detection theory: response depends both on the sensitivity (as outlined with absolute and difference threshold) but also on a person"s response criterion. Link between reality and ourselves: can be overwhelmed by noise, temperature, light, .