PSY 3001W Lecture Notes - Lecture 11: Microelectrode, Electroencephalography, Demand Characteristics
Document Summary
[manipulating the iv: setting the stage, provide informed consent info, describe purpose of study, straightforward manipulation, staged manipulation, events are staged to manipulate iv, often using confederates (accomplices), select levels of iv to achieve largest effect. [measuring the dependent variable: types of measures, behavioral measures. Count number of errors or number correct. [measuring the dependent variable: types of measures, physiological measures. Gsr (galvanic skin response) measure of general arousal and anxiety. Emg (electromyogram) measure of muscle tension. Eeg (electroencephalogram) measure of electrical activity in the brain. Mri (magnetic resonance imaging) produces images of the brain. Pet (positron emission tomography) and fmri (functional magnetic resonance imaging) display dynamic activity of brain during mental tasks. Invasive measures recording activity of individual neurons with microelectrodes: often, when using physiological measures, you must infer psychological states from physiological states, self-report measures. Participant might report (beliefs, internal state, etc. ) using a rating scale or yes/no response. Strongly agree, agree neutral, disagree, and strongly disagree.
