PSY 105 Lecture Notes - Lecture 9: Synesthesia, Hair Cell, Auditory Cortex

• School: Ryerson University
• Department: Psychology
• Course: PSY 105
• Professor: Kristin Vickers

Document Summary

Synesthesia - subjective experience of a sense other than the one being stimulated. Brain regions for different sensory modalities cross activate eachother. Humans have a limited capacity for paying attention. Sensation - act of using our sensory systems to detect environmental stimuli. Perception - recognizing and identifying sensory stimulus. Sensory receptor cell - specialized cells that convert a specific form of environmental stimuli into neural impulses. Sensory transduction - process of converting a specific form of sensory data into a neural impulse that our brain can read. Absolute threshold - smallest amount of a stimulus that one can detect. Difference between sensing and not sensing something. Just noticeable difference (jnd) - the minimal change in a stimulus that can just barely be detected. Weber"s law - the jnd of a particular stimulus is a constant percentage (regardless of variations in intensity) For weight a noticeable difference is 20% of initial weight.