PSY-P 155 Study Guide - Quiz Guide: Extrasensory Perception, Precognition, Sensory Nerve
Document Summary
Receiving stimuli turning into neural energy. Electrochemical impulse or action potential brain. Process of organizing and interpreting sensory info. Sensory receptors register info about external environment and send it to brain for interpretation. Begin with sense of what"s happening and apply it to incoming world. Constructed perceptions drawing on experience and expectations. Specialized, detect stimulus info and transmit it to sensory (afferent) nerves to brain. Trigger action potential potentials in sensory neurons to cns. Varies the frequency of action potentials sent to brain to indicate differences in intensity. Detect pressure, vibration, movement; perceived as touch, hearing, equilibrium. Detect chemical stimuli; perceived as smell and taste. Among those who lost limb, report alarming/puzzling pain in lost limb. Minimum amount of stimulus needed to detect a particular stimulus 50% of the time. Stimulus below the threshold can"t detect. Irrelevant and competing stimuli, any distracting stimuli for our senses. Minimum difference between two stimuli required for detection 50% of the time, noticeable difference.
