PSYC 1001 Chapter Notes - Chapter 4: Visual Cortex, Detection Theory, Visual Agnosia

• School: Carleton University
• Department: Psychology
• Course: PSYC 1001
• Professor: Bruce Tsuji

Document Summary

Components of stimulus are detected by sensory receptors (retina, ears, skin) Bits of information are then transmitted to brain, combined and assembled into whole pattern that a person perceives. Non-auto(cid:373)ati(cid:272), serial (cid:894)(cid:272)a(cid:374)"t do (cid:373)ultiple thi(cid:374)gs i(cid:374) parallel, at the sa(cid:373)e ti(cid:373)e(cid:895); per(cid:272)eptio(cid:374) Helps find meaningful links between individual elements taken in by sensory receptors. Seeing an apple or reaching for that apple? (reaching for the apple) Knowing that you are alive or determine that a patient is alive? (2nd one) Watching an episode of a show or writing an episode? (2nd one) Science of how we measure what we see and hear and feel. Difference between not perceiving & just being able to perceive a stimulus. Smallest increase or decrease in sti(cid:373)ulus for (cid:862)just (cid:374)oti(cid:272)ea(cid:271)le differe(cid:374)(cid:272)e(cid:863) (cid:894)jnd(cid:895) detectable 50% of the time. Jnd a percent of total value of stimulus. Detection of stimulus depends on more than physical intensity of stimulus & sensory abilities of observer: fatigue, expectancy, urgency.