PSYCH 100 Lecture Notes - Lecture 17: Habituation, Neural Adaptation, Absolute Threshold
Document Summary
Section 5: basics of sensation and perception; vision and touch. Sensation- activation of receptors in various sense organs. Outside stimuli- to become neural signals in the brain. Perception- method by which the sensations are organized and interpreted in a meaningful fashion. Change blindness- the phenomena that occurs because human beings are able to pay attention to only one part of visual sensations that they are exposed to on a moment to moment basis. May see what we want to see. Absolute threshold- least energy for correct stimulus detection 50% of the time. Vision- a candle flame can be seen form 30 miles away on a dark night. Hearing- a ticking watch can be heard from 20 feet away in a quiet room. Smell- a drop of perfume can be smelled throughout a three bedroom house. Taste- one teaspoon of sugar can be tasted in 2 gallons of water.
