PSY 1101 Chapter Notes - Chapter 6: Detection Theory, Subliminal Stimuli, Absolute Threshold

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Najwa Haddad

Document Summary

This process is called transduction (converting one form of energy into another) Minimum stimulation necessary to detect a particular light, sound, pressure, taste, or door 50% of the time. Predicts how and when we detect presence of faint stimuli amid background stimulate. Assumes there is no single absolute threshold and that election depends partly on a person"s experience, expectations, motivation, and alertness. Mom recognizing her child"s cry amidst a bunch of crying babies. Minimum di erence a person can detect between any two stimuli half the time di erence threshold increases with the size of the stimulus. Two stimuli must di er by a constant minimum percentage (not constant amount) Subliminal persuasion subliminally resented stimuli can subtly in uence people, but experiments discount attempts at subliminal advertising and self improvement. Diminished sensitivity as a result of constant stimulation. Cool example: things don"t go invisible to eye bcuz eyes constantly moving, if focused stare at one thing too long it"ll disappear.