Psychology 1000 Lecture Notes - Lecture 7: Subliminal Stimuli, Vitreous Body, Spectral Sensitivity

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

Document Summary

Can figure out when things are different (ex. Value of a stimulus characteristic required to produce some response. Absolute: lower limit (tell us when sensory systems kick in) Size of difference threshold relative to physical intensity of test is constant. If i=50 db and a jnd is reported at 55 db. Value of jnd is not constants but the relative difference is. In general there is no evidence that subliminal cuts influence consumer behaviour. Showed people photos 1 for 100 milliseconds, couldn"t identify it, but if the first photo was related to the second you could identify the second quicker. Light) and convert it into neural signal: coding ex. Iris (coloured portion, spherer muscle, controls size of pupil) Cornea (protects the eye, major focus point of images) Lens (thick structure, allows to focus near and far) Operate at low levels of light intensity (sensitive to brightness) Distinctive colour is due to chemicals, or visual pigments.