PSY 105 Lecture Notes - Lecture 4: Auditory Cortex, Umami, Olfactory Receptor
Document Summary
Chapter 4: sensation and perception october 6, 2015. The tactile or cutaneous senses: touch, pressure, pain, vibration. Synesthesia a subjective experience of an aspect of a sense other than the one being stimulated. Brain regions for different sensory modalities cross-activate each other. Sensation the act of using our sensory systems to detect environmental stimuli. Raw sensory data: vision light waves, hearing sound waves. Sensory receptor cells specialized cells that convert a specific form of environmental stimuli into neural impulses. Sensory transduction the process of converting a specific form of sensory data into a neural impulse that our brain can read. Absolute threshold is the smallest amount of a stimulus that one can detect. In other words, this is the difference between sensing and not sensing . Just noticeable difference (jnd): the minimal change in a stimulus that can just barely be detected. (or difference threshold)
