Psychology 1000 Lecture Notes - Lecture 14: Subliminal Stimuli, Psychophysics, Psychophysiology

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

Document Summary

Psychophysics and psychophysiology: psychophysics: the relation between physical stimulus and psychological response. Values of a stimulus characteristic required to produce some response. Not a 1 to 1 relation: we(cid:271)er"s la(cid:449) Size of difference threshold relative to physical intensity of test is constant. Value of a jnd is not constant. Sensation increases with the log of intensity. Compare i = ci: te(cid:448)e(cid:374)"s po(cid:449)er la(cid:449) (cid:894)best(cid:895) More productive across a variety of sensations. James vicary (1957: claimed 50% increase in popcorn sales, co(cid:374)(cid:272)er(cid:374) a(cid:271)out the use of su(cid:271)li(cid:373)i(cid:374)al (cid:862)(cid:272)uts(cid:863) We have a belief that things were not aware of can affect us. In general, no evidence that subliminal cuts influence consumer behaviour: priming, showed an image and two images subliminally. If the subliminal image was related to image shown, then 100 msecs recognition - faster. Fitzsimons et al. (2008: 30 msec exposure time to images. Sperdin et al. (2014: mi(cid:374)i(cid:373)u(cid:373) prese(cid:374)tatio(cid:374) ti(cid:373)e for (cid:374)eural respo(cid:374)se .