Psychology 1000 Chapter Notes - Chapter 5: Retina, Psychophysics, Decision-Making

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Laura Fazakas-de Hoog

Document Summary

Sensation: stimulation of the sense organs (eyes, ears, skin, taste buds: you look with your eyes. Perception: selecting, organizing, and interpreting sensory input: you see with your brain - (cid:449)ithout your (cid:271)rai(cid:374) you (cid:449)ould(cid:374)"t see anything comprehendible. Psychophysics: study of how physical stimuli are translated into to psychological experience: how pressure or chemical stimuli are translated into the experience of perception. Sensory stimuli: things like light waves, that get registered in the retina of our eyes. Psychophysics - basic concept: sensation needs a stimulus we can detect, some stimuli are so weak or low that they do not register in our conscious, some wave lengths of light fall in this range. Light is present: (present: you drive=hit, you do(cid:374)"t=(cid:373)iss. Light is not present: (absent: you drive= false alarm, you do(cid:374)"t dri(cid:448)e=(cid:272)orre(cid:272)t reje(cid:272)tio(cid:374) Subliminal stimuli: stimuli strong enough to register on our nervous system but are below the threshold for us to consciously notice, can affect our behaviour.