PSYC 100 Lecture Notes - Lecture 9: Visual Cortex, Detection Theory, Basilar Membrane
![PSYC 100 Full Course Notes](https://new-docs-thumbs.oneclass.com/doc_thumbnails/list_view/2157210-class-notes-ca-queens-psyc-100-lecture1.jpg)
65
PSYC 100 Full Course Notes
Verified Note
65 documents
Document Summary
Higher process that the brain uses to interpret organizes and selects sensaions, also involves personal knowledge and experience. Psychophysics: study of how sensaion relate to percepion done by psychophysicists. Sensory threshold : point which simulus triggers neural efect. Ernst weber sensiivity to weight change: weber"s law (created by fechner): Jndt divided by the iniial intensity is a constant, when jndt goes up as intensity goes up. Gustav fechner sensiivity to variaion of simuli. Fechner"s law: in every sensory domain each jnd is an equal step in the psychological magnitude of a sensaion. This law measures the magnitude of a sensaion in jnd. Steven"s power law: relaionship between the magnitude of a simuli and its perceived intensity. ^paricipants tendency to say yes or no when unsure: external noise and internal/neural noise (neuron iring at spontaneous, signal detecion theory: weather simulus is perceived depends on sensory experience and judgement.