PSY 201 Lecture Notes - Lecture 7: Detection Theory, Subliminal Stimuli, Psychophysics
Document Summary
9/17: psychophysics: study of relationships between the physical characteristics of stimuli and our psychological experiences of them. Incoming info from the environment: sensory receptors: specialized cells that detect stimulus information from & transmit it to sensory nerves and the brain (afferent, photo- light, mechno (touch & hearing, chemoreception. Gestalt: organized whole: we default to the easy, you can be right, you can be happy, but not both. Signal detection theory: an approach to perception that focuses on decision making about stimuli under conditions of uncertainty. Subliminal perception: the detection of information below the level of conscious awareness: subliminal perception is real , compare to ans, you k(cid:374)ow it"s happe(cid:374)i(cid:374)g, a(cid:374)d you"re aware, but you"re (cid:374)ot thinking about it. Sensory adaptation: diminished sensitivity as a consequence of constant stimulation: the difference between getting used to something (passive) and selective attention (actively ignoring other information from the environment) Parallel processing: multitasking from all the senses and the workings of the brain.
