PSYA01H3 Lecture Notes - Lecture 20: Detection Theory, Sensory System, Reward System
Document Summary
Limon- you want to know at what point the stimulus"s energy can be received by the sensory system. Slide 17: first empirical psychology study in north america by pearson jastrow. You shuffle a deck of card, walking backwards until the patient can"t see what"s on the card anymore. The experimenter shuffles the cards, and shows them one by one and asks the patient to say whether they saw the letters and numbers. They had a good probability of guessing right, more than the chance, meaning there are more than just the primary waking self. Info is getting in, and another entity seems to also process it. Jastrow uses the reverse of the last question. However, this experiment relies on the patient"s response. This has a demand characteristic, which affects the way you interpret the role (ex. The experiment can cause a bias, with a pressure for the patient to respond they can"t see.
