PSYC 2000 Lecture Notes - Lecture 4: Absolute Threshold, Color Vision, Retina
Document Summary
The process of detecting physical energy (stimuli) from the environment and converting it into neutral signals b. Occurs when special receptors in the sense organs are activated allowing various forms of outside stimuli to become neural signals in the brain c. Process of converting outside stimuli into neural activity a. b. The process of selecting, organizing, and interpreting our sensations. Occurs when we give meaning to our sensation interpreting them as we can. Minimum stimulation needed to detect a particular stimulus 50% of the time. Minimum difference between two stimuli required for detection 50% if the time: weber"s law a. i. a. ii. In humans, difference thresholds increase in proportion in the size of stimulus. Two stimuli must differ by a constant minimum percentage to be perceived as different. Strong enough messages for our sensory receptors to pick up but not strong enough for us to detect them a. iii.
