01:830:305 Lecture Notes - Lecture 6: Retina, Positron Emission Tomography, Neuroimaging

• School: Rutgers University
• Department: Psychology
• Course: 01:830:305
• Professor: J.Feldman

Document Summary

Pet- positron emission tomography fmri- function magnetic resonance imaging (can see where there is more hemoglobin) both read: bold signal= blood oxygen level dependent . shows where the blood is going (not precise in time) =bold due only to critical aspect of task. Studies aren"t conducted well-- lots of differences between experimental and control groups. The whole point is to localize function but not everything thinks that matters. Na ve realism- people think we know what"s out there bc we look and see (but really brain guesses based on what little info is given to it) The image of cube on retina (proximal stimulus) The proximal stimulus is inherently ambiguous(there are other things it could have been that would have led to the same image) it is consistent with many interpretations. The goal of perception is to guess the properties of the world (the distal stimulus) based on the evidence in the proximal stimulus.