PSYO 1011 Lecture Notes - Lecture 10: Detection Theory, Tungsten, Electromagnetic Spectrum

• School: Dalhousie University
• Department: Psychology
• Course: PSYO 1011
• Professor: Leanne Stevens,Shelley Adamo,Kevin Duffy,Jennifer Stamp

Document Summary

Sensation and perception are linked, yet very separate. Sensation: involved transduction of the physical world into neural impulses (unchanging) Perception: involves binding these sensory impulses into a representation of the world (changing) The brain contained many cells, however there was no organization of cell specialization (common misconception) Brain is not homogenous mass (very structurally organized) Original discovery of brain mapping treated soldiers with bullet wounds to the head, left visually impaired. Where the brain damage occurred= what piece of vision is missing. The brain is not a homogenous mass (all cells organize all functions) Motivation (the reason for doing the study) Practice (brain can devise strategies to perform better) ambient noise (background noise) therefore: dr 1 is better false alarm. Defined as the amount of stimulus judged to be different from the standard stimulus 50% of the time ( just noticeable difference ) #2 10% absolute threshold gives information about only one aspect of sensation detection.