Psychology 1000 Lecture Notes - Lecture 11: Subliminal Stimuli, Outer Ear, Ganglion

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Relation between physical stimulus and psychological response. Can determine a just noticeable different (jnd) Value of a stimulus characteristic required to produce some response. We(cid:271)er"s la(cid:449) (cid:894)need to kno(cid:449) ho(cid:449) to (cid:272)al(cid:272)ulate it(cid:895): Size of the difference threshold relative to physical intensity of test constant. If i= 50db and a jnd is report at 55db: 5/50= 1/10 (cid:272)an predi(cid:272)t other jnd"s, whats a jnd @ 100 db, x/100=1/10 solve for x the value if jnd not constant can compare sensitivity of different systems. Fe(cid:272)hner"s la(cid:449): sensation increases with logarithm of intensity. More predictive across a variety of sensations. James vicary (1957: claimed 50% increase in popcorn sales. Concern about the use of subliminal (cid:862)(cid:272)uts(cid:863) In general, no evidence that subliminal cuts influence consumer behaviour: priming. Fitzsimons et al. (2008: 30 msec exposure to something, after exposure you have to draw it, people who say apple logo were more creative.